http请求与响应

一、用http写服务类

package com.montnets.customer.servlet;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.sql.Timestamp;
import java.util.LinkedHashMap;
import java.util.List;

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



import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.montnets.customer.entity.Message;
import com.montnets.emp.common.biz.BaseBiz;
import com.montnets.emp.common.context.EmpExecutionContext;
import com.montnets.emp.entity.employee.LfEmployee;
import com.montnets.emp.entity.sysuser.LfSysuser;
import com.montnets.emp.sysuser.servlet.opt_sysuserSvt;


/**
 * 人员修改接口，当用户修改信息时，调用此接口，同步用户信息表
 * @author ouyangyu
 *
 */
public class PersonUpdate extends HttpServlet{
    
        BaseBiz baseBiz=new BaseBiz();
        Message message = new Message();
        opt_sysuserSvt sysuserSvt = new opt_sysuserSvt();
        public String errorInfoString = "";
        
        @Override
        public void doPost(HttpServletRequest request, HttpServletResponse response)
                throws ServletException, IOException {
            
            //解决乱码问题，必须放在最前面
            request.setCharacterEncoding("utf-8");
            response.setCharacterEncoding("utf-8");
            response.setContentType("text/html");
             51             boolean flag =false;
            StringBuffer output = new StringBuffer();
            try {  
                //获取客户请求数据的流
                  BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(),"utf-8")); 
                  String inputLine = null; 
                  while ( (inputLine = in.readLine()) != null){ 
                      output.append(inputLine); 
                  } 
                  in.close(); 
                  
                  String result = output.toString();
                  System.out.println("调用修改账户的接口，客户请求参数result:"+result);
                if(flag){
                    message.setMsgCode("000");
                    message.setMsgStr("success");
                    EmpExecutionContext.info("调用修改人员信息接口获取成功！");
                }else{
                    message.setMsgCode("111");
                    message.setMsgStr(errorInfoString);
                    EmpExecutionContext.error("调用修改人员信息接口失败！");
                }
                
                 //返回值
                PrintWriter out = response.getWriter();
                //将对象转为json格式的字符串
                String jsonStr= JSON.toJSONString(message);
                out.write(jsonStr);
                out.flush();
                out.close();
                    
             }catch (Exception e) {  
                 EmpExecutionContext.error(e, "获取修改人员信息接口失败"); 
             }  
        }
        
        @Override
        protected void doGet(HttpServletRequest request, HttpServletResponse response)
                throws ServletException, IOException {
            this.doPost(request, response);
        }
        
      
        /**
         * 将json字符串变为java对象
         */
        public Message jsonToMessage(String jsonStr){
            Message msg = null;
            JSONObject object = null;
            try {
                object = this.jsonToObject(jsonStr);
                if(object!=null){
                    msg = new Message();
                    msg.setMsgCode(object.get("msgCode").toString());
                    msg.setMsgStr(object.get("msgStr").toString());
                }

            } catch (NullPointerException e) {
                EmpExecutionContext.error(e, "调用人员查询接口，将json字符串变为java对象异常。");
            }
            return msg;
        }
        
        
        //判断字符串是否为空或者空字符串
        public static boolean isEmpty(String str){
            boolean flag=false;
            if(str==null||"".equals(str)){
                flag=true;
            }
            return flag;
        }

    }

二、http请求类

package com;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;


import net.sf.json.JSONException;
import net.sf.json.JSONObject;


public class TestPersonUpdate {
    public static void main(String[] args) throws Exception {

        String address="http://127.0.0.1:8080/emp_sta/services/personUpdate.htm";
        String serviceBody = "{"employeeNumber":"","status":"0"," +
                                ""usercn":"小花花","sex":"1","+
                                ""startTime":"20090101","personGroup":"2","+
                                ""idCardNum":"421024199202021345","mobile":"13827453210","+
                                ""email":"","wxStr":"","+
                                ""qqNum":""}";

        URL url = null;
        HttpURLConnection urlConn = null;
        url = new URL(address);
        urlConn = (HttpURLConnection) url.openConnection();
        urlConn.setRequestMethod("POST");
        urlConn.setDoOutput(true);
        OutputStream out = urlConn.getOutputStream();
        String param=serviceBody;
        out.write(param.toString().getBytes("utf-8"));
        
        out.flush();
        out.close();

        StringBuffer str = new StringBuffer(); 
        BufferedReader in = new BufferedReader(new InputStreamReader(urlConn.getInputStream(),"utf-8")); 
        String inputLine = null; 
        while ( (inputLine = in.readLine()) != null){ 
            str.append(inputLine); 
        } 
        in.close(); 
        
        String Strjson=str.toString();
        System.out.println("原始数据:");
        System.out.println(Strjson.toString()); 
        
        Map<String,String> mapst=toMap(Strjson);

        for (String s : mapst.keySet()) {
            System.out.println("key:" + s+",values:" + mapst.get(s));
        }

        System.out.println("
");

        
    }

    /**
     * 将Json对象转换成Map
     * 
     * @param jsonObject
     *            json对象
     * @return Map对象
     * @throws JSONException
     */
    public static Map<String,String> toMap(String jsonString) throws JSONException {

        JSONObject jsonObject = new JSONObject();
        jsonObject=JSONObject.fromObject(jsonString);
        
        Map<String,String> result = new HashMap<String,String>();
        Iterator iterator = jsonObject.keys();
        String key = null;
        String value = null;
        
        while (iterator.hasNext()) {
            key = (String) iterator.next();
            value = jsonObject.getString(key);
            result.put(key, value);

        }
        return result;

    }

}