首先要搭建一个httpserver，这里採用tomcat6为例：

过程：新建一个Servlet，并使用tomcat的默认port号8080监听，最后写一个jsp来測试能否够訪问该server

1）新建一个Serlvet

新建完后增加写下測试代码：

public class TestServlet extends HttpServlet {	private static final long serialVersionUID = 1L;    /**     * Default constructor.      */    public TestServlet() {        // TODO Auto-generated constructor stub    }	/**	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)	 */	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {		this.doPost(request, response);	}	/**	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)	 */	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {		request.setAttribute("test", "test");		request.getRequestDispatcher("index.jsp").forward(request, response);	}}

该Servlet的名字是TestServlet。所以把web.xml中的内容改成下面内容

xml version="1.0" encoding="UTF-8"?

> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>TestServlet</display-name> <servlet> <servlet-name>TestServlet</servlet-name> <servlet-class>com.test.servlet.TestServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>TestServlet</servlet-name> <url-pattern>/TestServlet</url-pattern> </servlet-mapping> </web-app>

然后编写一个訪问该Servlet后会跳转的jsp（index.jsp）

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
     ${test }

最后启动server。在浏览器中如输入下面地址：http://localhost:8080/TestServlet/TestServlet，能够看到訪问成功

其次在cocos2d-x项目中封装curl（參考Cocos2d-x高级开发教程，并添加了能够传输多个键值对），代码比較简单，直接在凝视中说明：

头文件：

//单线程发送，会堵塞class NetworkAdaptor {public:	NetworkAdaptor(const string &baseUrl);//构造	NetworkAdaptor(const char* baseUrl);//构造	bool sendValueForKey(const char* key, const char* value, string &wirteBackBuffer);//发送一个HTTP请求	bool sendValueForKey(const map
     
       &content, string &wirteBackBuffer);//发送一个HTTP请求private:	string m_sBaseUrl;//请求的url地址};//多线程线程发送class AsynNetworkAdaptor {public:	void sendValueForKeyToUrl(const char* key, const char* value, const string &url, string &wirteBackBuffer);//添加一个HTTP请求	void sendValueForKeyToUrl(const map
      
        content, const string &url, string &wirteBackBuffer);//添加一个HTTP请求	void flushSendRequests();//批量发送HTTP请求	CC_SYNTHESIZE_READONLY(int, m_iUnfinishedRequest, UnfinishedRequest);//发送的数量protected:	struct RequestInfo {//请求信息		RequestInfo(const map
       
         &content, const string &url, string &buffer) : content(content), url(url), buffer(buffer){}		map
        
          content;//发送内容		string url;//请求的url地址		string &buffer;//server回传的内容	};	vector
         
           requests;//请求容器};
         
        
       
      
     

cpp文件：

//将键值对的内容转换成表单格式的内容进行传送void translate(const map
     
       &content, string &sendout) {	sendout = "";	for(map
      
       ::const_iterator it = content.begin(); it != content.end(); ++it) {		sendout = sendout + (it->first + "=" + it->second) + "&";	}	sendout = sendout.substr(0, sendout.length() - 1);//去掉最后一个&字符}//回调函数。一定要返回服务器对应过来的字节大小size_t writer(char* data, size_t size, size_t number, string* writeData) {	if(writeData == NULL) {		return 0;	}		writeData->append(data, size * number);	return size * number;}NetworkAdaptor::NetworkAdaptor(const string& baseUrl) {	this->m_sBaseUrl =  baseUrl;}NetworkAdaptor::NetworkAdaptor(const char* baseUrl) {	this->m_sBaseUrl =  string(baseUrl);}bool NetworkAdaptor::sendValueForKey(const char* key, const char* value, string &wirteBackBuffer) {	map
       
         content;	content.insert(make_pair(key, value));	sendValueForKey(content, wirteBackBuffer);	return true;}bool NetworkAdaptor::sendValueForKey(const map
        
          &content, string &wirteBackBuffer) {	CURL* curl = curl_easy_init();//初始化curl	if(curl) {		string sendout;		translate(content, sendout);		//配置curl的请求參数		curl_easy_setopt(curl, CURLOPT_URL, m_sBaseUrl.c_str());		curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);		curl_easy_setopt(curl, CURLOPT_POST, 1);//post方式		curl_easy_setopt(curl, CURLOPT_POSTFIELDS, sendout.c_str());		curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writer);		curl_easy_setopt(curl, CURLOPT_WRITEDATA, &wirteBackBuffer);			int res = curl_easy_perform(curl);		curl_easy_cleanup(curl);		if(res == CURLE_OK) {			CCLog("get data from server : %s", wirteBackBuffer.c_str());			return true;		}else {			CCLog("curl post error");		}	}else {		CCLog("curl init fail");	}	return false;}void AsynNetworkAdaptor::sendValueForKeyToUrl(const char* key, const char* value, const string &url, string &wirteBackBuffer) {	map
         
           content;	content.insert(make_pair(key, value));	sendValueForKeyToUrl(content, url, wirteBackBuffer);}void AsynNetworkAdaptor::sendValueForKeyToUrl(const map
          
            content, const string &url, string &wirteBackBuffer) { RequestInfo info(content, url, wirteBackBuffer); requests.push_back(info);//将请求放到请求容器中}void AsynNetworkAdaptor::flushSendRequests() { CURLM* curlm = curl_multi_init(); if(curlm) { for(unsigned int i = 0; i < requests.size(); ++i) {//将请求容器中的请求批量发送到服务端 CURL* curl = curl_easy_init(); if(curl) { string sendout; translate(requests[i].content, sendout); curl_easy_setopt(curl, CURLOPT_URL, requests[i].url.c_str()); curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); curl_easy_setopt(curl, CURLOPT_POST, 1); curl_easy_setopt(curl, CURLOPT_POSTFIELDS, sendout.c_str()); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writer); curl_easy_setopt(curl, CURLOPT_WRITEDATA, &requests[i].buffer); int res = curl_easy_perform(curl); curl_multi_add_handle(curlm, curl); curl_easy_cleanup(curl); }else { CCLog("curl init fail"); break; } } CURLMcode curlm_code = CURLM_CALL_MULTI_PERFORM; while(CURLM_CALL_MULTI_PERFORM == curlm_code) { curlm_code = curl_multi_perform(curlm, &m_iUnfinishedRequest); } if (curlm_code != CURLM_OK) { CCLog("curlm post error"); } curl_multi_cleanup(curlm); }else { CCLog("curlm init fail"); }}
          
         
        
       
      
     

最后写一个測试用例：

NetworkAdaptor n("http://localhost:8080/TestServlet/TestServlet");	string v;	map
     
       m;	m.insert(make_pair("name", "myName"));	m.insert(make_pair("password", "myPassword"));	n.sendValueForKey(m, v);	CCLog("%s", v.c_str());
     

改动server端的代码。使其不跳转。并给client响应一句话

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {		//request.setAttribute("testt", "test");		//request.getRequestDispatcher("index.jsp").forward(request, response);		String name = request.getParameter("name");		String password = request.getParameter("password");		System.out.println("name: " + name + " , password: " + password);//输出从client发送过来的内容				response.getWriter().print("server have get data");//给client响应一句话	}

如在控制台看到下面測试结果。则表明訪问成功：

服务端：

client：