先上代码：

package com.jovtec.galaxy.mailbox;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import net.sf.json.JSONObject;import com.jovtec.galaxy.object.SysObject;import com.jovtec.galaxy.util.DateHelper;public class MailboxAction extends HttpServlet {	/**	 * 	 */	private static final long serialVersionUID = 1L;	/**	 * 覆盖Get方法	 */	@SuppressWarnings("unchecked")	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {		response.setContentType("application/json");		response.setCharacterEncoding("UTF-8");		// 返回JSON数据		JSONObject resultObject = new JSONObject();		// 获取post提交的回复案件的信息		String postResult = reqMailbox(request);		//实现逻辑...		response.getOutputStream().write(resultObject.toString().getBytes("UTF-8"));	}	/**	 * 获取请求头内容	 * 	 * @param request	 * @return	 * @throws IOException	 */	private String reqMailbox(HttpServletRequest request) throws IOException {		// 读取请求内容		BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream(), "UTF-8"));		String line = null;		StringBuilder sb = new StringBuilder();		while ((line = br.readLine()) != null) {			sb.append(line);		}		// 将资料解码		return sb.toString();	}	/**	 * 跳转到Get方法	 */	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {		doGet(request, response);	}}

1.首先，先继承HttpServlet，获取post请求的参数。

2.需要在web.xml里面做相应的配置，配置如下：

     
      
       MailboxAction
           
      
       com.jovtec.galaxy.mailbox.MailboxAction
      
     
           
      
       MailboxAction
             
      
       /mailbox/MailboxAction
       
     

访问接口的路径，就是项目路径+/mailbox/MailboxAction

完~