微信开发第二讲开发与微信交互的servlet

在上一节中我们学习了如何在微信服务号中配置URL和token,现在介绍一下如何开发与微信交互的Servlet。

package com.demo.weixin.servlet;

import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;

/import com.demo.weixin.service.CoreService; import com.demo.weixin.util.SignUtil;

/** * 核心请求处理类* * */public class CoreServlet extends HttpServlet { private static final Logger logger = Logger.getLogger(CoreServlet.class);

/** * 确认请求来自微信服务器 */ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 微信加密签名String signature = request.getParameter("signature"); // 时间戳String timestamp = request.getParameter("timestamp"); // 随机数String nonce = request.getParameter("nonce"); // 随机字符串String echostr = request.getParameter("echostr");

PrintWriter out = response.getWriter(); // 通过检验signature对请求进行校验，，若校验成功则原样返回echostr，表示接入成功，否则接入失败String token ="weixin"; if (SignUtil.checkSignature(token,signature, timestamp, nonce))

{ out.print(echostr);//如果签名成功，返回给微信} out.close(); out = null; }

/** * 处理微信服务器发来的消息 */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 将请求、响应的编码均设置为UTF-8（防止中文乱码）request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8") ; //本节暂不介绍微信消息处理

//String respMessage = CoreService.processWeixinRequest(request); //logger.info(respMessage);//输出响应的消息字符串 // 响应消息 PrintWriter out = response.getWriter(); out.print(respMessage); out.close(); }

}

SignUtil.java的代码及servlet配置参考：

手机端浏览参考：

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