post请求百度网址内容和访问本地springmvc工程controller

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;


public class SendPost {

	public static void main(String[] args) throws Exception{
		// TODO Auto-generated method stub
		 PrintWriter out = null;
		    BufferedReader in = null;
		    String result = "";
		    try {
		        URL realUrl = new URL("http://www.baidu.com");
		        URLConnection conn = realUrl.openConnection();
		        conn.setConnectTimeout(5000);
		        conn.setReadTimeout(10*1000);
		        conn.setDoOutput(true); // 发送POST请求必须设置如下两行
		        conn.setDoInput(true);
		        out = new PrintWriter(conn.getOutputStream());
		        out.flush();
		        in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
		        String line;
		        while ((line = in.readLine()) != null) {
		            result += line;
		            System.out.println(line);
		        }
		    } catch (Exception e) {
		        throw e; // 异常外抛
		    } finally{
		        try{
		            if(out!=null)out.close();
		            if(in!=null) in.close();
		        }
		        catch(Exception ex){
		        }
		    }
	}

}

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
import org.apache.http.util.EntityUtils;

import com.alibaba.fastjson.JSONObject;
import com.allinfinance.cis.credit.api.bean.PrdReq;
import com.sun.tools.javac.util.List;
public class TestPost2 {
	public static void main(String[] args) throws Exception{
		// TODO Auto-generated method stub
//		1,创建httpClient对象
		HttpClient client = new HttpClient();
//		2.创建httpPost对象
		PostMethod postMethod = new PostMethod("http://localhost:8080/springMVC2/view");
		postMethod.addParameter("aa", "--------------");
//		3,设置一个list，以键值对存放请求内容
//		List list=null;
//		list.add(1,"aa");
//		list.add(2,"bb");
//		4,将对象包装成一个Entity对象
//		StringEntity entity=new UrlEncodedFormEntity(,"utf-8");
//		5,设置请求内容
//		httpPost.setEntity(entity);
//		6,设置请求报文头部编码
//		httpPost.setHeader(new BasicHeader("Content-Type","application/x-www-form-urlencoded;charset=utf-8"));
//		7,设置期望返回值编码
//		httpPost.setHeader(new BasicHeader("Accept","test/plain;charset=utf-8"));
//		8,执行post请求
//		9,获取响应码
		int statusCode=client.executeMethod(postMethod);
//		int statusCode=response.getStatusLine().getStatusCode();
//		10,如果响应码等于200 说明返回请求成功
		if(statusCode==200){
//			11,，获取数据
			String rs = postMethod.getResponseBodyAsString();
//			12,输出
			System.out.println("请求成功，输出结果"+rs);
			
		}else{
//			13，输出
			System.out.println("请求失败！");
		}
	}

}

package com.springmvc.controller;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class ViewController {

    @RequestMapping("/view")
    public ModelAndView view(HttpServletRequest request,String aa){
        ModelAndView mav = new ModelAndView();
        String contextPath=request.getContextPath();
        mav.addObject("context",contextPath);
        mav.setViewName("index");
        System.out.println("SSSSSSSSSSSSSSSSSSSss"+aa);
        return mav;
    }
}