Android中如何搭建一个WebServer

日期:2019-01-26 编辑:AG集&#

今天终于把老大交代的任务搞完了,感觉收获挺多的,所以就写一篇来记录一下吧,首先还是来看一下,老大们的需求


需求:

希望移动端的用户标识(IMEI)和HTML页面的用户标识(Cookie)连接起来,其中HTML页面可能是用户使用PC访问指定的html页面也有可能是移动端使用浏览器访问html页面


技术解决:

运用移动设备的系统特型,用Apps的Service监听本地的网络端口,当局域网内或本机的Html页面通过请求调用本地IP:Port时触发监听。Apps在将当前Html的Cookie和移动设备标识物发回服务端时,即实现了本次PC/Mobile Html页面的Cookie和移动设备的互相绑定。


具体实现方案之多端通信技术方案

各模块细节
1.Native App(移动端的app):
1).跟随主服务常驻内存,在收到当前网络环境为Wifi事件后,启动HttpServer。
(当前网络切换成3G/2G等网络时关闭HttpServer)。

以上这步我们叫做注册:启动移动端的HttpServer的时候,我们会将移动设备的ip地址(内网地址)发送到指定的后台Server上

2).收到从Web来的http请求后,往Server发送绑定请求,这时候就将移动端的IMEI和HTML中的Cookie一起上传到指定的Server上
例如:
http://serverhost/?cookie=123213&imei=31233213123
以上这步我们叫做一次绑定的完成操作


以为我们是在移动端开始一个HttpServer的,所以要考虑一些额外的因素,比如耗电量
风险控制:使用灰度测试规则,并使用开关限制功能。
功耗风险:经过三台设备测试,电量消耗忽略不计(具体CPU使用时间在统计)。

2.Web JS:
1).加载页面加载后先从CDN加载一个静态的JS到此页面。


2).静态JS再请求Server 获取一段动态JS用以做本地Ping。
(如果此IP已有N次获取,则考虑>N的节点是一个大型公共网络,则把此公共IP加入黑名单,不再返回动态JS)


3).获得动态JS后直接Ping本地的HttpServer。
(Ping的IP/Port会随着动态JS一起下发)

这里我们是在Html页面中使用JS脚本来处理传递Cookie给移动端的功能。


3.Bridge Server:
1).Sever选型:Node.js
同时考虑到开发效率,性能,和client的JS的契合度。
Node.js单台16核服务器,4节点,QPS经测试能到6k-8k。
较适合短频非阻塞的请求。

2).数据存储:Redis
考虑到NativeApp的外网IP时效性,以及对于短频请求的快速应答。
以外网IP为Key,各个IP为Value。每天清理一次外网IP。
存储格式:{外网IP:{NativeApp IP/Port, .........}}

3).移动端所需要的接口
接口一:Native App 对于本外网IP的注册的请求。
接口二:Navtive App的绑定请求。

具体原理图:


我们首先需要定义一个RequestHander用来处理请求的逻辑结果,同时我们需要建立一个HttpConnection,这里我们需要获取来访者的ip地址,所以我们定义了一个全局的变量ipAddress,然后在WebServiceHandler类中的handle方法中进行上报完成的动作,需要上报的参数为:

cookie:来访者携带的cookie值(也就是Html页面中的cookie)

imei:手机的移动标识

visitor_ip:来访者的ip地址

local_ip:本机的ip地址

route_mac:手机连接的路由器的地址

route_ssid:手机连接的路由器的ssid

timetag:上报的时间戳


下面再来看一下辅助类
Utils:

package com.sohu.tests;

import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.conn.util.InetAddressUtils;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.telephony.TelephonyManager;
import android.text.TextUtils;

/**
 * 工具类
 * 
 * @author weijiang204321
 * 
 */
public class Utils {

	public static Context mContext;

	public static void init(Context context) {
		mContext = context;
	}

	/**
	 * 
	 * @param str
	 * @return 字符串是否为空
	 */
	public static boolean isNotEmpty(澳门太阳集团String str) {
		if (str != null && !"".equals(str)) {
			return true;
		}
		return false;
	}


	/**
	 * 获取手机的Mac地址
	 * 
	 * @return
	 */
	public static String getMacAddress() {
		String result = "";
		try {
			WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
			WifiInfo wifiInfo = wifiManager.getConnectionInfo();
			result = wifiInfo.getMacAddress();
		} catch (Exception e) {
			result = "";
		}
		return result;
	}

	/**
	 * 获取手机的imei
	 * 
	 * @return
	 */
	public static String getImeiInfo() {
		try {
			TelephonyManager mTm = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
			return mTm.getDeviceId();
		} catch (Exception e) {
			e.printStackTrace();
			return "";
		}

	}

	/**
	 * 获取手机的imsi
	 * 
	 * @return
	 */
	public static String getImsiInfo() {
		try {
			String imsi = "";
			TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
			if (telephonyManager != null) {
				imsi = telephonyManager.getSubscriberId();
			}
			if (TextUtils.isEmpty(imsi)) {
				imsi = "UNKNOWN";
			}
			return imsi;
		} catch (Exception e) {
			return "";
		}
	}

	/**
	 * 获取手机型号
	 * 
	 * @return
	 */
	public static String getTypeInfo() {
		return android.os.Build.MODEL; // 手机型号
	}

	/**
	 * 获取手机系统版本
	 * 
	 * @return
	 */
	public static String getOsVersion() {
		return android.os.Build.VERSION.RELEASE;
	}

	/**
	 * 获取路由器的SSID
	 * 
	 * @return
	 */
	public static String getRouteSSID() {
		try {
			WifiManager wm = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
			WifiInfo info = wm.getConnectionInfo();
			if(info.getSSID().contains("<")){
				return "";
			}else{
				return info.getSSID().replace("\"","") + "";
			}
		} catch (Exception e) {
			AppListYPLog.e("异常:" + e.getMessage() + ",获取SSID失败!");
			return "";
		}
	}

	/**
	 * 获取路由器的Mac地址
	 * 
	 * @return
	 */
	public static String getRouteMac() {
		try {
			WifiManager wm = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
			WifiInfo info = wm.getConnectionInfo();
			if(info.getBSSID() == null){
				return "";
			}else{
				return info.getBSSID() + "";
			}
		} catch (Exception e) {
			AppListYPLog.e("异常:" + e.getMessage() + ",获取Mac地址失败!");
			return "";
		}
	}
	
	/**
	 * 解析uri参数
	 * @param uri
	 * @return
	 */
	public static Map getParam(String uri){
		Map params = new HashMap();
		try{
			if(isNotEmpty(uri)){
				String subStr = uri.substring(uri.indexOf("?")+1);
				String[] ary = subStr.split("&");
				for(int i=0;i en = NetworkInterface.getNetworkInterfaces();
            // 遍历所用的网络接口
            while (en.hasMoreElements()){
                NetworkInterface nif = en.nextElement();// 得到每一个网络接口绑定的所有ip
                Enumeration inet = nif.getInetAddresses();
                // 遍历每一个接口绑定的所有ip
                while (inet.hasMoreElements()){
                    InetAddress ip = inet.nextElement();
                    if (!ip.isLoopbackAddress()&& InetAddressUtils.isIPv4Address(ip.getHostAddress())){
                        return ip.getHostAddress();
                    }
                }
            }
        }catch (SocketException e){
            AppListYPLog.e("feige", "获取本地ip地址失败");
        }
        return ipaddress;
    }
    
    /**
     * 检查端口port是否被占用了
     * @param port
     * @return
     */
    public static boolean checkPort(int port){
		try{
			InetAddress theAddress=InetAddress.getByName("127.0.0.1");
			try {
				Socket theSocket = new Socket(theAddress,port);
				theSocket.close();
				theSocket = null;
				theAddress = null;
				return false;
			}catch (IOException e) {
				AppListYPLog.e("异常:"+e.getMessage()+"检查端口号是否被占用");
			}catch(Exception e){
				AppListYPLog.e("异常:"+e.getMessage()+"检查端口号是否被占用");
			}
		}catch(UnknownHostException e) {
			AppListYPLog.e("异常:"+e.getMessage()+"检查端口号是否被占用");
		}
		return true;
    }
	
}

网络工具类NetUtils

package com.sohu.tests;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;

public final class NetUtils {
	
	/**
	 * 上传数据
	 * 
	 * @param url
	 * @param param
	 * @return
	 */
	public static String postData(String url, HashMap param) {

		HttpPost httpPost = new HttpPost(url);
		// 设置HTTP POST请求参数必须用NameValuePair对象
		List params = new ArrayList();
		if (param != null) {
			Set> set = param.entrySet();
			Iterator> iterator = set.iterator();
			while (iterator.hasNext()) {
				Entry tempEntry = iterator.next();
				params.add(new BasicNameValuePair(tempEntry.getKey(), tempEntry.getValue()));
			}
		} else {
			AppListYPLog.e("DEMO:", "上传参数错误");
			return null;
		}
		HttpResponse httpResponse = null;
		try {
			// 设置httpPost请求参数
			httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
			HttpClient httpClient = new DefaultHttpClient();
			// 请求超时
			httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 20000);
			// 读取超时
			httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 20000);
			httpResponse = httpClient.execute(httpPost);
			if (httpResponse.getStatusLine().getStatusCode() == 200) {
				// 第三步,使用getEntity方法活得返回结果
				String result = EntityUtils.toString(httpResponse.getEntity());
				return result;
			}
		} catch (ClientProtocolException e) {
			AppListYPLog.e("异常:" + e.getMessage());
			return null;
		} catch (IOException e) {
			AppListYPLog.e("异常:" + e.getMessage());
			return null;
		}
		return null;
	}
	
	/**
	 * @return 通过Request方式曝光
	 */
	public static boolean uploadRequest(String baseUrl, String param) throws ClientProtocolException, IOException {
		HttpGet httpGet = null;
		if (param != null && !"".equals(param)) {
			httpGet = new HttpGet(baseUrl + "?" + param);
		} else {
			httpGet = new HttpGet(baseUrl);
		}
		AppListYPLog.e("URL:"+httpGet.getURI()+"");
		HttpParams params = httpGet.getParams();
		HttpConnectionParams.setConnectionTimeout(params, 3000);
		HttpConnectionParams.setSoTimeout(params, 3000);
		HttpClient httpClient = new DefaultHttpClient(params);
		HttpResponse response = httpClient.execute(httpGet);
		int statusCode = response.getStatusLine().getStatusCode();
		AppListYPLog.e("响应码:" + statusCode);
		if (statusCode < 300 && statusCode >= 200) {
			return true;
		}
		return false;
	}


}

常量类:

package com.sohu.tests;

/**
 * 常量类
 * @author weijiang204321
 *
 */
public class Consts {
	
	/*cookie等信息上传url*/
	public static final String cookieUrl = "http://192.168.1.110:8080/HttpServer/FinishServlets";
	
	/*注册的url*/
	public static final String registerUrl = "http://192.168.1.110:8080/HttpServer/RegisterServlets";
	
	/*备用端口*/
	public static int[] portAry = new int[]{23021,10034,48990};
	
	/*默认端口*/
	public static int defaultPort = 23021;
	
}

打印Log类

package com.sohu.tests;

import android.util.Log;

/**
 * 打印Log信息
 * @author weijiang204321
 *
 */
public class AppListYPLog {

	private final static String TAG = "APPLIST";
	private static boolean SHOW_LOG = true;

	private AppListYPLog() {
	}

	public static void closeLog() {
		SHOW_LOG = false;
	}

	public static void i(String msg) {
		if (SHOW_LOG) {
			Log.i(TAG, msg);
		}
	}

	public static void d(String msg) {
		if (SHOW_LOG) {
			Log.d(TAG, msg);
		}
	}

	public static void w(Exception ex) {
		if (SHOW_LOG) {
			ex.printStackTrace();
		}
	}

	public static void e(String msg) {
		if (SHOW_LOG) {
			Log.e(TAG, msg);
		}
	}

	public static void i(String tag, String msg) {
		if (SHOW_LOG) {
			Log.i(tag, msg);
		}
	}

	public static void d(String tag, String msg) {
		if (SHOW_LOG) {
			Log.d(tag, msg);
		}
	}

	public static void w(String tag, String msg) {
		if (SHOW_LOG) {
			Log.w(tag, msg);
		}
	}

	public static void e(String tag, String msg) {
		if (SHOW_LOG) {
			Log.e(tag, msg);
		}
	}

}


测试的Demo:

package com.sohu.tests;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class Main extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.mainlay);
		startService(new Intent(this, SocketService.class));
	}
	
}


手机端的HttpServer就搭建完成了,下面我们要想测试的话,就必须在搭建一个Server端,我们这里就简单的建立一个Servlet:

移动端进行注册的接口:

package com.weijiang.httpserver;

import java.io.IOException;
import java.util.Date;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class RegisterServlets extends HttpServlet {

	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {
		System.out.println("imei:"+req.getParameter("imei"));
		System.out.println("hs_ip:"+req.getParameter("hs_ip"));
		System.out.println("route_mac:"+req.getParameter("route_mac"));
		System.out.println("route_ssid:"+req.getParameter("route_ssid"));
		System.out.println("timetag:"+new Date(Long.parseLong(req.getParameter("timetag"))));
	}

	protected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {
		doGet(req,resp);
	}

}

移动端完成操作的接口:

package com.weijiang.httpserver;

import java.io.IOException;
import java.util.Date;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class FinishServlets extends HttpServlet {

	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {
		System.out.println("cookie:"+req.getParameter("cookie"));
		System.out.println("imei:"+req.getParameter("imei"));
		System.out.println("visitor_ip:"+req.getParameter("visitor_ip"));
		System.out.println("local_ip:"+req.getParameter("local_ip"));
		System.out.println("route_mac:"+req.getParameter("route_mac"));
		System.out.println("route_ssid:"+req.getParameter("route_ssid"));
		System.out.println("timetag:"+new Date(Long.parseLong(req.getParameter("timetag"))));
	}

	protected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {
		doGet(req,resp);
	}

}

模拟携带有cookie值的Html页面


    Click
这里就是为了简单的模拟,所以直接随便写了一个cookie值


我们将PC和手机进行联网,这里不需要连接在一个网段中,只要在一个公网内就可以了,即他们两个可以ping通就可以,我这里在家里面测试的,用的是自己的路由器,所以一定是在一个网段中,我们查看PC的ip地址:

openConnections = new HashSet(); private Thread myThread; /** * Pluggable strategy for asynchronously executing requests. */ private AsyncRunner asyncRunner; /** * Pluggable strategy for creating and cleaning up temporary files. */ private TempFileManagerFactory tempFileManagerFactory; /** * Constructs an HTTP server on given port. */ public NanoHTTPD(int port) { this(null, port); } /** * Constructs an HTTP server on given hostname and port. */ public NanoHTTPD(String hostname, int port) { this.hostname = hostname; this.myPort = port; setTempFileManagerFactory(new DefaultTempFileManagerFactory()); setAsyncRunner(new DefaultAsyncRunner()); } private static final void safeClose(Closeable closeable) { if (closeable != null) { try { closeable.close(); } catch (IOException e) { } } } private static final void safeClose(Socket closeable) { if (closeable != null) { try { closeable.close(); } catch (IOException e) { } } } private static final void safeClose(ServerSocket closeable) { if (closeable != null) { try { closeable.close(); } catch (IOException e) { } } } /** * Start the server. * * @throws IOException if the socket is in use. */ public void start() throws IOException { myServerSocket = new ServerSocket(); myServerSocket.bind((hostname != null) ? new InetSocketAddress(hostname, myPort) : new InetSocketAddress(myPort)); myThread = new Thread(new Runnable() { @Override public void run() { do { try { final Socket finalAccept = myServerSocket.accept(); registerConnection(finalAccept); finalAccept.setSoTimeout(SOCKET_READ_TIMEOUT); final InputStream inputStream = finalAccept.getInputStream(); asyncRunner.exec(new Runnable() { @Override public void run() { OutputStream outputStream = null; try { outputStream = finalAccept.getOutputStream(); TempFileManager tempFileManager = tempFileManagerFactory.create(); HTTPSession session = new HTTPSession(tempFileManager, inputStream, outputStream, finalAccept.getInetAddress()); while (!finalAccept.isClosed()) { session.execute(); } } catch (Exception e) { // When the socket is closed by the client, we throw our own SocketException // to break the "keep alive" loop above. if (!(e instanceof SocketException && "NanoHttpd Shutdown".equals(e.getMessage()))) { e.printStackTrace(); } } finally { safeClose(outputStream); safeClose(inputStream); safeClose(finalAccept); unRegisterConnection(finalAccept); } } }); } catch (IOException e) { } } while (!myServerSocket.isClosed()); } }); myThread.setDaemon(true); myThread.setName("NanoHttpd Main Listener"); myThread.start(); } /** * Stop the server. */ public void stop() { try { safeClose(myServerSocket); closeAllConnections(); myThread.join(); } catch (Exception e) { e.printStackTrace(); } } /** * Registers that a new connection has been set up. * * @param socket * the {@link Socket} for the connection. */ public synchronized void registerConnection(Socket socket) { openConnections.add(socket); } /** * Registers that a connection has been closed * * @param socket * the {@link Socket} for the connection. */ public synchronized void unRegisterConnection(Socket socket) { openConnections.remove(socket); } /** * Forcibly closes all connections that are open. */ public synchronized void closeAllConnections() { for (Socket socket : openConnections) { safeClose(socket); } } public final int getListeningPort() { return myServerSocket == null ? -1 : myServerSocket.getLocalPort(); } public final boolean wasStarted() { return myServerSocket != null && myThread != null; } public final boolean isAlive() { return wasStarted() && !myServerSocket.isClosed() && myThread.isAlive(); } /** * Override this to customize the server. *

*

* (By default, this delegates to serveFile() and allows directory listing.) * * @param uri Percent-decoded URI without parameters, for example "/index.cgi" * @param method "GET", "POST" etc. * @param parms Parsed, percent decoded parameters from URI and, in case of POST, data. * @param headers Header entries, percent decoded * @return HTTP response, see class Response for details */ @Deprecated public Response serve(String uri, Method method, Map headers, Map parms, Map files) { return new Response(Response.Status.NOT_FOUND, MIME_PLAINTEXT, "Not Found"); } /** * Override this to customize the server. *

*

* (By default, this delegates to serveFile() and allows directory listing.) * * @param session The HTTP session * @return HTTP response, see class Response for details * 我们需要自己实现这个方法 */ public Response serve(IHTTPSession session) { Map files = new HashMap(); Method method = session.getMethod(); if (Method.PUT.equals(method) || Method.POST.equals(method)) { try { session.parseBody(files); } catch (IOException ioe) { return new Response(Response.Status.INTERNAL_ERROR, MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); } catch (ResponseException re) { return new Response(re.getStatus(), MIME_PLAINTEXT, re.getMessage()); } } Map parms = session.getParms(); parms.put(QUERY_STRING_PARAMETER, session.getQueryParameterString()); return serve(session.getUri(), method, session.getHeaders(), parms, files); } /** * Decode percent encoded String values. * * @param str the percent encoded String * @return expanded form of the input, for example "foo%20bar" becomes "foo bar" */ protected String decodePercent(String str) { String decoded = null; try { decoded = URLDecoder.decode(str, "UTF8"); } catch (UnsupportedEncodingException ignored) { } return decoded; } /** * Decode parameters from a URL, handing the case where a single parameter name might have been * supplied several times, by return lists of values. In general these lists will contain a single * element. * * @param parms original NanoHttpd parameters values, as passed to the serve() method. * @return a map of String (parameter name) to List (a list of the values supplied). */ protected Map> decodeParameters(Map parms) { return this.decodeParameters(parms.get(QUERY_STRING_PARAMETER)); } /** * Decode parameters from a URL, handing the case where a single parameter name might have been * supplied several times, by return lists of values. In general these lists will contain a single * element. * * @param queryString a query string pulled from the URL. * @return a map of String (parameter name) to List (a list of the values supplied). */ protected Map> decodeParameters(String queryString) { Map> parms = new HashMap>(); if (queryString != null) { StringTokenizer st = new StringTokenizer(queryString, "&"); while (st.hasMoreTokens()) { String e = st.nextToken(); int sep = e.indexOf('='); String propertyName = (sep >= 0) ? decodePercent(e.substring(0, sep)).trim() : decodePercent(e).trim(); if (!parms.containsKey(propertyName)) { parms.put(propertyName, new ArrayList()); } String propertyValue = (sep >= 0) ? decodePercent(e.substring(sep + 1)) : null; if (propertyValue != null) { parms.get(propertyName).add(propertyValue); } } } return parms; } // ------------------------------------------------------------------------------- // // // Threading Strategy. // // ------------------------------------------------------------------------------- // /** * Pluggable strategy for asynchronously executing requests. * * @param asyncRunner new strategy for handling threads. */ public void setAsyncRunner(AsyncRunner asyncRunner) { this.asyncRunner = asyncRunner; } // ------------------------------------------------------------------------------- // // // Temp file handling strategy. // // ------------------------------------------------------------------------------- // /** * Pluggable strategy for creating and cleaning up temporary files. * * @param tempFileManagerFactory new strategy for handling temp files. */ public void setTempFileManagerFactory(TempFileManagerFactory tempFileManagerFactory) { this.tempFileManagerFactory = tempFileManagerFactory; } /** * HTTP Request methods, with the ability to decode a String back to its enum value. */ public enum Method { GET, PUT, POST, DELETE, HEAD, OPTIONS; static Method lookup(String method) { for (Method m : Method.values()) { if (m.toString().equalsIgnoreCase(method)) { return m; } } return null; } } /** * Pluggable strategy for asynchronously executing requests. */ public interface AsyncRunner { void exec(Runnable code); } /** * Factory to create temp file managers. */ public interface TempFileManagerFactory { TempFileManager create(); } // ------------------------------------------------------------------------------- // /** * Temp file manager. *

*

Temp file managers are created 1-to-1 with incoming requests, to create and cleanup * temporary files created as a result of handling the request.

*/ public interface TempFileManager { TempFile createTempFile() throws Exception; void clear(); } /** * A temp file. *

*

Temp files are responsible for managing the actual temporary storage and cleaning * themselves up when no longer needed.

*/ public interface TempFile { OutputStream open() throws Exception; void delete() throws Exception; String getName(); } /** * Default threading strategy for NanoHttpd. *

*

By default, the server spawns a new Thread for every incoming request. These are set * to daemon status, and named according to the request number. The name is * useful when profiling the application.

*/ public static class DefaultAsyncRunner implements AsyncRunner { private long requestCount; @Override public void exec(Runnable code) { ++requestCount; Thread t = new Thread(code); t.setDaemon(true); t.setName("NanoHttpd Request Processor (#" + requestCount + ")"); t.start(); } } /** * Default strategy for creating and cleaning up temporary files. *

*

This class stores its files in the standard location (that is, * wherever java.io.tmpdir points to). Files are added * to an internal list, and deleted when no longer needed (that is, * when clear() is invoked at the end of processing a * request).

*/ public static class DefaultTempFileManager implements TempFileManager { private final String tmpdir; private final List tempFiles; public DefaultTempFileManager() { tmpdir = System.getProperty("java.io.tmpdir"); tempFiles = new ArrayList(); } @Override public TempFile createTempFile() throws Exception { DefaultTempFile tempFile = new DefaultTempFile(tmpdir); tempFiles.add(tempFile); return tempFile; } @Override public void clear() { for (TempFile file : tempFiles) { try { file.delete(); } catch (Exception ignored) { } } tempFiles.clear(); } } /** * Default strategy for creating and cleaning up temporary files. *

*

By default, files are created by File.createTempFile() in * the directory specified.

*/ public static class DefaultTempFile implements TempFile { private File file; private OutputStream fstream; public DefaultTempFile(String tempdir) throws IOException { file = File.createTempFile("NanoHTTPD-", "", new File(tempdir)); fstream = new FileOutputStream(file); } @Override public OutputStream open() throws Exception { return fstream; } @Override public void delete() throws Exception { safeClose(fstream); file.delete(); } @Override public String getName() { return file.getAbsolutePath(); } } /** * HTTP response. Return one of these from serve(). */ public static class Response { /** * HTTP status code after processing, e.g. "200 OK", HTTP_OK */ private Status status; /** * MIME type of content, e.g. "text/html" */ private String mimeType; /** * Data of the response, may be null. */ private InputStream data; /** * Headers for the HTTP response. Use addHeader() to add lines. */ private Map header = new HashMap(); /** * The request method that spawned this response. */ private Method requestMethod; /** * Use chunkedTransfer */ private boolean chunkedTransfer; /** * Default constructor: response = HTTP_OK, mime = MIME_HTML and your supplied message */ public Response(String msg) { this(Status.OK, MIME_HTML, msg); } /** * Basic constructor. */ public Response(Status status, String mimeType, InputStream data) { this.status = status; this.mimeType = mimeType; this.data = data; } /** * Convenience method that makes an InputStream out of given text. */ public Response(Status status, String mimeType, String txt) { this.status = status; this.mimeType = mimeType; try { this.data = txt != null ? new ByteArrayInputStream(txt.getBytes("UTF-8")) : null; } catch (java.io.UnsupportedEncodingException uee) { uee.printStackTrace(); } } /** * Adds given line to the header. */ public void addHeader(String name, String value) { header.put(name, value); } /** * Sends given response to the socket. */ private void send(OutputStream outputStream) { String mime = mimeType; SimpleDateFormat gmtFrmt = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss 'GMT'", Locale.US); gmtFrmt.setTimeZone(TimeZone.getTimeZone("GMT")); try { if (status == null) { throw new Error("sendResponse(): Status can't be null."); } PrintWriter pw = new PrintWriter(outputStream); pw.print("HTTP/1.1 " + status.getDescription() + " \r "); if (mime != null) { pw.print("Content-Type: " + mime + "\r "); } if (header == null || header.get("Date") == null) { pw.print("Date: " + gmtFrmt.format(new Date()) + "\r "); } if (header != null) { for (String key : header.keySet()) { String value = header.get(key); pw.print(key + ": " + value + "\r "); } } pw.print("Connection: keep-alive\r "); if (requestMethod != Method.HEAD && chunkedTransfer) { sendAsChunked(outputStream, pw); } else { sendAsFixedLength(outputStream, pw); } outputStream.flush(); safeClose(data); } catch (IOException ioe) { // Couldn't write? No can do. } } private void sendAsChunked(OutputStream outputStream, PrintWriter pw) throws IOException { pw.print("Transfer-Encoding: chunked\r "); pw.print("\r "); pw.flush(); int BUFFER_SIZE = 16 * 1024; byte[] CRLF = "\r ".getBytes(); byte[] buff = new byte[BUFFER_SIZE]; int read; while ((read = data.read(buff)) > 0) { outputStream.write(String.format("%x\r ", read).getBytes()); outputStream.write(buff, 0, read); outputStream.write(CRLF); } outputStream.write(String.format("0\r \r ").getBytes()); } private void sendAsFixedLength(OutputStream outputStream, PrintWriter pw) throws IOException { int pending = data != null ? data.available() : 0; // This is to support partial sends, see serveFile() pw.print("Content-Length: "+pending+"\r "); pw.print("\r "); pw.flush(); if (requestMethod != Method.HEAD && data != null) { int BUFFER_SIZE = 16 * 1024; byte[] buff = new byte[BUFFER_SIZE]; while (pending > 0) { int read = data.read(buff, 0, ((pending > BUFFER_SIZE) ? BUFFER_SIZE : pending)); if (read <= 0) { break; } outputStream.write(buff, 0, read); pending -= read; } } } public Status getStatus() { return status; } public void setStatus(Status status) { this.status = status; } public String getMimeType() { return mimeType; } public void setMimeType(String mimeType) { this.mimeType = mimeType; } public InputStream getData() { return data; } public void setData(InputStream data) { this.data = data; } public Method getRequestMethod() { return requestMethod; } public void setRequestMethod(Method requestMethod) { this.requestMethod = requestMethod; } public void setChunkedTransfer(boolean chunkedTransfer) { this.chunkedTransfer = chunkedTransfer; } /** * Some HTTP response status codes */ public enum Status { OK(200, "OK"), CREATED(201, "Created"), ACCEPTED(202, "Accepted"), NO_CONTENT(204, "No Content"), PARTIAL_CONTENT(206, "Partial Content"), REDIRECT(301, "Moved Permanently"), NOT_MODIFIED(304, "Not Modified"), BAD_REQUEST(400, "Bad Request"), UNAUTHORIZED(401, "Unauthorized"), FORBIDDEN(403, "Forbidden"), NOT_FOUND(404, "Not Found"), METHOD_NOT_ALLOWED(405, "Method Not Allowed"), RANGE_NOT_SATISFIABLE(416, "Requested Range Not Satisfiable"), INTERNAL_ERROR(500, "Internal Server Error"); private final int requestStatus; private final String description; Status(int requestStatus, String description) { this.requestStatus = requestStatus; this.description = description; } public int getRequestStatus() { return this.requestStatus; } public String getDescription() { return "" + this.requestStatus + " " + description; } } } public static final class ResponseException extends Exception { private final Response.Status status; public ResponseException(Response.Status status, String message) { super(message); this.status = status; } public ResponseException(Response.Status status, String message, Exception e) { super(message, e); this.status = status; } public Response.Status getStatus() { return status; } } /** * Default strategy for creating and cleaning up temporary files. */ private class DefaultTempFileManagerFactory implements TempFileManagerFactory { @Override public TempFileManager create() { return new DefaultTempFileManager(); } } /** * Handles one session, i.e. parses the HTTP request and returns the response. */ public interface IHTTPSession { void execute() throws IOException; Map getParms(); Map getHeaders(); /** * @return the path part of the URL. */ String getUri(); String getQueryParameterString(); Method getMethod(); InputStream getInputStream(); CookieHandler getCookies(); /** * Adds the files in the request body to the files map. * @arg files - map to modify */ void parseBody(Map files) throws IOException, ResponseException; } protected class HTTPSession implements IHTTPSession { public static final int BUFSIZE = 8192; private final TempFileManager tempFileManager; private final OutputStream outputStream; private PushbackInputStream inputStream; private int splitbyte; private int rlen; private String uri; private Method method; private Map parms; private Map headers; private CookieHandler cookies; private String queryParameterString; public HTTPSession(TempFileManager tempFileManager, InputStream inputStream, OutputStream outputStream) { this.tempFileManager = tempFileManager; this.inputStream = new PushbackInputStream(inputStream, BUFSIZE); this.outputStream = outputStream; } public HTTPSession(TempFileManager tempFileManager, InputStream inputStream, OutputStream outputStream, InetAddress inetAddress) { this.tempFileManager = tempFileManager; this.inputStream = new PushbackInputStream(inputStream, BUFSIZE); this.outputStream = outputStream; String remoteIp = inetAddress.isLoopbackAddress() || inetAddress.isAnyLocalAddress() ? "127.0.0.1" : inetAddress.getHostAddress().toString(); headers = new HashMap(); headers.put("remote-addr", remoteIp); headers.put("http-client-ip", remoteIp); } @Override public void execute() throws IOException { try { /* Read the first 8192 bytes. The full header should fit in here. Apache's default header limit is 8KB. Do NOT assume that a single read will get the entire header at once! header的最大长度为8192bytes,所以这里设置BUFSIZE为8192bytes */ byte[] buf = new byte[BUFSIZE]; splitbyte = 0; rlen = 0;//总共的长度 { int read = -1;//每次读取的长度 try { read = inputStream.read(buf, 0, BUFSIZE); } catch (Exception e) { safeClose(inputStream); safeClose(outputStream); throw new SocketException("NanoHttpd Shutdown"); } if (read == -1) { // socket was been closed safeClose(inputStream); safeClose(outputStream); throw new SocketException("NanoHttpd Shutdown"); } while (read > 0) { rlen += read; splitbyte = findHeaderEnd(buf, rlen); if (splitbyte > 0)//如果返回0则说明没有找到 break; read = inputStream.read(buf, rlen, BUFSIZE - rlen); } } //如果读多了,则将多余的部分重新写到流里面 if (splitbyte < rlen) { inputStream.unread(buf, splitbyte, rlen - splitbyte); } parms = new HashMap(); if(null == headers) { headers = new HashMap(); } // Create a BufferedReader for parsing the header. BufferedReader hin = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buf, 0, rlen))); // Decode the header into parms and header java properties Map pre = new HashMap(); decodeHeader(hin, pre, parms, headers); /** * 取出客户端请求的方式:GET/POST */ method = Method.lookup(pre.get("method")); if (method == null) { throw new ResponseException(Response.Status.BAD_REQUEST, "BAD REQUEST: Syntax error."); } //请求的连接 uri = pre.get("uri"); cookies = new CookieHandler(headers); /* * Ok, now do the serve() * 解析 */ Response r = serve(this); if (r == null) { throw new ResponseException(Response.Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: Serve() returned a null response."); } else { cookies.unloadQueue(r); //响应客户端信息 r.setRequestMethod(method); r.send(outputStream); } } catch (SocketException e) { // throw it out to close socket object (finalAccept) throw e; } catch (SocketTimeoutException ste) { throw ste; } catch (IOException ioe) { Response r = new Response(Response.Status.INTERNAL_ERROR, MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); r.send(outputStream); safeClose(outputStream); } catch (ResponseException re) { Response r = new Response(re.getStatus(), MIME_PLAINTEXT, re.getMessage()); r.send(outputStream); safeClose(outputStream); } finally { tempFileManager.clear(); } } @Override public void parseBody(Map files) throws IOException, ResponseException { RandomAccessFile randomAccessFile = null; BufferedReader in = null; try { //创建临时文件 randomAccessFile = getTmpBucket(); long size; if (headers.containsKey("content-length")) { size = Integer.parseInt(headers.get("content-length")); } else if (splitbyte < rlen) { size = rlen - splitbyte; } else { size = 0; } /* * Now read all the body and write it to f * 将流的内容写到临时文件中 */ byte[] buf = new byte[512]; while (rlen >= 0 && size > 0) { rlen = inputStream.read(buf, 0, (int)Math.min(size, 512)); size -= rlen; if (rlen > 0) { randomAccessFile.write(buf, 0, rlen); } } // Get the raw body as a byte [] ByteBuffer fbuf = randomAccessFile.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, randomAccessFile.length()); randomAccessFile.seek(0);//重新定位到临时文件的开始位置 // Create a BufferedReader for easily reading it as string. InputStream bin = new FileInputStream(randomAccessFile.getFD()); in = new BufferedReader(new InputStreamReader(bin)); // If the method is POST, there may be parameters // in data section, too, read it: if (Method.POST.equals(method)) { String contentType = ""; String contentTypeHeader = headers.get("content-type"); StringTokenizer st = null; if (contentTypeHeader != null) { st = new StringTokenizer(contentTypeHeader, ",; "); if (st.hasMoreTokens()) { contentType = st.nextToken(); } } //表单提交,文件上传类型 if ("multipart/form-data".equalsIgnoreCase(contentType)) { // Handle multipart/form-data if (!st.hasMoreTokens()) { throw new ResponseException(Response.Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but boundary missing. Usage: GET /example/file.html"); } String boundaryStartString = "boundary="; int boundaryContentStart = contentTypeHeader.indexOf(boundaryStartString) + boundaryStartString.length(); String boundary = contentTypeHeader.substring(boundaryContentStart, contentTypeHeader.length()); if (boundary.startsWith("\"") && boundary.endsWith("\"")) { boundary = boundary.substring(1, boundary.length() - 1); } //fbuf里面包含body的内容 decodeMultipartData(boundary, fbuf, in, parms, files); } else { // Handle application/x-www-form-urlencoded String postLine = ""; StringBuilder postLineBuffer = new StringBuilder(); char pbuf[] = new char[512]; int read = in.read(pbuf); while (read >= 0 && !postLine.endsWith("\r ")) { postLine = String.valueOf(pbuf, 0, read); postLineBuffer.append(postLine); read = in.read(pbuf); } postLine = postLineBuffer.toString().trim(); decodeParms(postLine, parms); } } else if (Method.PUT.equals(method)) { String content = saveTmpFile(fbuf, 0, fbuf.limit()); files.put("content", content); } } finally { safeClose(randomAccessFile); safeClose(in); } } /** * Decodes the sent headers and loads the data into Key/value pairs */ private void decodeHeader(BufferedReader in, Map pre, Map parms, Map headers) throws ResponseException { try { // Read the request line GET / HTTP/1.1 String inLine = in.readLine(); if (inLine == null) { return; } //分隔inLine用 \r\f StringTokenizer st = new StringTokenizer(inLine); if (!st.hasMoreTokens()) { throw new ResponseException(Response.Status.BAD_REQUEST, "BAD REQUEST: Syntax error. Usage: GET /example/file.html"); } String method = st.nextToken(); pre.put("method", method); if (!st.hasMoreTokens()) { throw new ResponseException(Response.Status.BAD_REQUEST, "BAD REQUEST: Missing URI. Usage: GET /example/file.html"); } String uri = st.nextToken(); /* * Decode parameters from the URI * 以"?" 来判断是否有参数 */ int qmi = uri.indexOf('?'); if (qmi >= 0) {//说明有参数,调用decodeParms将参数解析到parms中 decodeParms(uri.substring(qmi + 1), parms); uri = decodePercent(uri.substring(0, qmi)); } else { uri = decodePercent(uri); } // If there's another token, it's protocol version, // followed by HTTP headers. Ignore version but parse headers. // NOTE: this now forces header names lowercase since they are // case insensitive and vary by client. if (st.hasMoreTokens()) { String line = in.readLine(); while (line != null && line.trim().length() > 0) { int p = line.indexOf(':'); if (p >= 0) headers.put(line.substring(0, p).trim().toLowerCase(Locale.US), line.substring(p + 1).trim()); line = in.readLine(); } } pre.put("uri", uri); } catch (IOException ioe) { throw new ResponseException(Response.Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage(), ioe); } } /** * Decodes the Multipart Body data and put it into Key/Value pairs. * @param boundary * @param fbuf * @param in * @param parms header头里面的参数 * @param files 支持多文件上传功能 * @throws ResponseException */ private void decodeMultipartData(String boundary, ByteBuffer fbuf, BufferedReader in, Map parms, Map files) throws ResponseException { try { //根据boundary获取分割线与内容的间隔位置 int[] bpositions = getBoundaryPositions(fbuf, boundary.getBytes()); int boundarycount = 2;//源码为1,如果是上传单个文件会有问题 String mpline = in.readLine(); while (mpline != null) { if (!mpline.contains(boundary)) { throw new ResponseException(Response.Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but next chunk does not start with boundary. Usage: GET /example/file.html"); } boundarycount++; Map item = new HashMap(); mpline = in.readLine(); while (mpline != null && mpline.trim().length() > 0) { int p = mpline.indexOf(':'); if (p != -1) { item.put(mpline.substring(0, p).trim().toLowerCase(Locale.US), mpline.substring(p + 1).trim()); } mpline = in.readLine(); } if (mpline != null) { String contentDisposition = item.get("content-disposition"); if (contentDisposition == null) { throw new ResponseException(Response.Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but no content-disposition info found. Usage: GET /example/file.html"); } StringTokenizer st = new StringTokenizer(contentDisposition, "; "); Map disposition = new HashMap(); while (st.hasMoreTokens()) { String token = st.nextToken(); int p = token.indexOf('='); if (p != -1) { disposition.put(token.substring(0, p).trim().toLowerCase(Locale.US), token.substring(p + 1).trim()); } } String pname = disposition.get("name"); pname = pname.substring(1, pname.length() - 1); String value = ""; if (item.get("content-type") == null) { while (mpline != null && !mpline.contains(boundary)) { mpline = in.readLine(); if (mpline != null) { int d = mpline.indexOf(boundary); if (d == -1) { value += mpline; } else { value += mpline.substring(0, d - 2); } } } } else { if (boundarycount > bpositions.length) { throw new ResponseException(Response.Status.INTERNAL_ERROR, "Error processing request"); } int offset = stripMultipartHeaders(fbuf, bpositions[boundarycount - 2]); //创建一个临时文件,然后保存内容,这个函数我们也需要重写setTempFileManagerFactory String path = saveTmpFile(fbuf, offset, bpositions[boundarycount - 1] - offset - 4); files.put(pname, path); value = disposition.get("filename"); value = value.substring(1, value.length() - 1); do { mpline = in.readLine(); } while (mpline != null && !mpline.contains(boundary)); } parms.put(pname, value); } } } catch (IOException ioe) { throw new ResponseException(Response.Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage(), ioe); } } /** * Find byte index separating header from body. It must be the last byte of the first two sequential new lines. * 找到head和body的分界点,两个回车换行 */ private int findHeaderEnd(final byte[] buf, int rlen) { int splitbyte = 0; while (splitbyte + 3 < rlen) { if (buf[splitbyte] == '\r' && buf[splitbyte + 1] == ' ' && buf[splitbyte + 2] == '\r' && buf[splitbyte + 3] == ' ') { return splitbyte + 4; } splitbyte++; } return 0; } /** * Find the byte positions where multipart boundaries start. * @param b * @param boundary * @return */ private int[] getBoundaryPositions(ByteBuffer b, byte[] boundary) { int matchcount = 0; int matchbyte = -1; List matchbytes = new ArrayList(); for (int i = 0; i < b.limit(); i++) { if (b.get(i) == boundary[matchcount]) { if (matchcount == 0) matchbyte = i; matchcount++; if (matchcount == boundary.length) { matchbytes.add(matchbyte); matchcount = 0; matchbyte = -1; } } else { i -= matchcount; matchcount = 0; matchbyte = -1; } } int[] ret = new int[matchbytes.size()]; for (int i = 0; i < ret.length; i++) { ret[i] = matchbytes.get(i); } return ret; } /** * Retrieves the content of a sent file and saves it to a temporary file. The full path to the saved file is returned. */ private String saveTmpFile(ByteBuffer b, int offset, int len) { String path = ""; if (len > 0) { FileOutputStream fileOutputStream = null; try { //这个地方的tempFileManager需要我们setTempFileManagerFactory TempFile tempFile = tempFileManager.createTempFile(); ByteBuffer src = b.duplicate(); fileOutputStream = new FileOutputStream(tempFile.getName()); FileChannel dest = fileOutputStream.getChannel(); src.position(offset).limit(offset + len); dest.write(src.slice()); path = tempFile.getName(); } catch (Exception e) { // Catch exception if any System.err.println("Error: " + e.getMessage()); } finally { safeClose(fileOutputStream); } } return path; } private RandomAccessFile getTmpBucket() { try { TempFile tempFile = tempFileManager.createTempFile(); return new RandomAccessFile(tempFile.getName(), "rw"); } catch (Exception e) { System.err.println("Error: " + e.getMessage()); } return null; } /** * It returns the offset separating multipart file headers from the file's data. */ private int stripMultipartHeaders(ByteBuffer b, int offset) { int i; for (i = offset; i < b.limit(); i++) { if (b.get(i) == '\r' && b.get(++i) == ' ' && b.get(++i) == '\r' && b.get(++i) == ' ') { break; } } return i + 1; } /** * Decodes parameters in percent-encoded URI-format ( e.g. "name=Jack%20Daniels&pass=Single%20Malt" ) and * adds them to given Map. NOTE: this doesn't support multiple identical keys due to the simplicity of Map. */ private void decodeParms(String parms, Map p) { if (parms == null) { queryParameterString = ""; return; } queryParameterString = parms; //使用&来分隔参数 StringTokenizer st = new StringTokenizer(parms, "&"); while (st.hasMoreTokens()) { String e = st.nextToken(); int sep = e.indexOf('='); if (sep >= 0) { /* * 这里使用decodePercent来解析,防止参数里面带有中文 * 比如“张杰”那么浏览器会写成%E5%BC%A0%E6%9D%B0 */ p.put(decodePercent(e.substring(0, sep)).trim(), decodePercent(e.substring(sep + 1))); } else { p.put(decodePercent(e).trim(), ""); } } } @Override public final Map getParms() { return parms; } public String getQueryParameterString() { return queryParameterString; } @Override public final Map getHeaders() { return headers; } @Override public final String getUri() { return uri; } @Override public final Method getMethod() { return method; } @Override public final InputStream getInputStream() { return inputStream; } @Override public CookieHandler getCookies() { return cookies; } } public static class Cookie { private String n, v, e; public Cookie(String name, String value, String expires) { n = name; v = value; e = expires; } public Cookie(String name, String value) { this(name, value, 30); } public Cookie(String name, String value, int numDays) { n = name; v = value; e = getHTTPTime(numDays); } public String getHTTPHeader() { String fmt = "%s=%s; expires=%s"; return String.format(fmt, n, v, e); } public static String getHTTPTime(int days) { Calendar calendar = Calendar.getInstance(); SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.US); dateFormat.setTimeZone(TimeZone.getTimeZone("GMT")); calendar.add(Calendar.DAY_OF_MONTH, days); return dateFormat.format(calendar.getTime()); } } /** * Provides rudimentary support for cookies. * Doesn't support 'path', 'secure' nor 'httpOnly'. * Feel free to improve it and/or add unsupported features. * * @author LordFokas */ public class CookieHandler implements Iterable { private HashMap cookies = new HashMap(); private ArrayList queue = new ArrayList(); public CookieHandler(Map httpHeaders) { String raw = httpHeaders.get("cookie"); if (raw != null) { String[] tokens = raw.split(";"); for (String token : tokens) { String[] data = token.trim().split("="); if (data.length == 2) { cookies.put(data[0], data[1]); } } } } @Override public Iterator iterator() { return cookies.keySet().iterator(); } /** * Read a cookie from the HTTP Headers. * * @param name The cookie's name. * @return The cookie's value if it exists, null otherwise. */ public String read(String name) { return cookies.get(name); } /** * Sets a cookie. * * @param name The cookie's name. * @param value The cookie's value. * @param expires How many days until the cookie expires. */ public void set(String name, String value, int expires) { queue.add(new Cookie(name, value, Cookie.getHTTPTime(expires))); } public void set(Cookie cookie) { queue.add(cookie); } /** * Set a cookie with an expiration date from a month ago, effectively deleting it on the client side. * * @param name The cookie name. */ public void delete(String name) { set(name, "-delete-", -30); } /** * Internally used by the webserver to add all queued cookies into the Response's HTTP Headers. * * @param response The Response object to which headers the queued cookies will be added. */ public void unloadQueue(Response response) { for (Cookie cookie : queue) { response.addHeader("Set-Cookie", cookie.getHTTPHeader()); } } } }
我们测试的时候需要自己定义的类:

package com.sohu.nanohttpd;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		NanoHTTPD nanoHttpd = new MyNanoHTTPD("127.0.0.1",23456);
		try{
			nanoHttpd.start();
		}catch(Exception e){
			e.printStackTrace();
		}
		
		Log.e("DEMO",nanoHttpd.isAlive()+"");
		
	}

}

class MyNanoHTTPD extends NanoHTTPD{

	public MyNanoHTTPD(int port) {
		super(port);
	}
	
	public MyNanoHTTPD(String hostName,int port){
		super(hostName,port);
	}
	
	 public Response serve(IHTTPSession session) { 
		 Method method = session.getMethod();
		 Log.e("DEMO","Method:"+method.toString());
		 if(NanoHTTPD.Method.GET.equals(method)){
			 //get方式
			 String queryParams = session.getQueryParameterString();
			 Log.e("DEMO","params:"+queryParams);
		 }else if(NanoHTTPD.Method.POST.equals(method)){
			 //post方式
		 }
		 return super.serve(session);
	 }
	
	
}
这里只是做了一下拓展知识,两种方式搭建都可以的,但是明显Apache的功能强大一点。。

测试项目的下载地址:

Android测试项目HttpServer下载地址

http://download.csdn.net/detail/jiangwei0910410003/7432533

PC端的Server测试项目HttpServer下载地址

http://download.csdn.net/detail/jiangwei0910410003/7432537

Android测试项目NanoHTTPD下载地址

http://download.csdn.net/detail/jiangwei0910410003/7432595

总结:上面就是将PC端的Cookie和移动端的imei进行绑定的操作,这种操作的价值是很大的,未来如果用户在家里面进行上网的话,我们就可以将PC端和移动端进行紧密耦合在一起,相当于一个整体。。这样我们对用户的行为就更加了解了。。


http://www.bkjia.com/Androidjc/779669.htmlwww.bkjia.comtruehttp://www.bkjia.com/Androidjc/779669.htmlTechArticle今天终于把老大交代的任务搞完了,感觉收获挺多的,所以就写一篇来记录一下吧,首先还是来看一下,老大们的需求 需求: 希望移动端...

本文源自: AG环亚官网