SpringMVC 结合HttpClient调用第三方接口实现

使用HttpClient 依赖jar包

1：commons-httpclient-3.0.jar

2：commons-logging-1.1.1.jar

3：commons-codec-1.6.jar

本地调用测试===>>>>>>>>>>>>

package com.me.cn.siteTrans.test;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import com.google.gson.Gson;

public class SiteTran {
public static void main(String[] args) {
    String result = httpClientTest();
    System.out.println(result);
}
public static String httpClientTest(){
    HttpClient client = new HttpClient() ;
    PostMethod method = null;//post 方式   get 方式 GetMethod gMethod 
    String result = "" ;
    try {
        method = new PostMethod("http://localhost:8666/test/siteTrans/returnJson.do") ;
        method.setParameter("param","test");//设置参数
        client.executeMethod(method);
        if(method.getStatusCode() == HttpStatus.SC_OK){//响应成功
            result = method.getResponseBodyAsString();//调用返回结果
        }else{//不成功组装结果
            Map<String , Object >map = new HashMap<String , Object>();
            Gson gson = new Gson() ;
            map.put("success", false);
            result = gson.toJson(map);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }finally{
      method.releaseConnection();
    }
    return result ;
}
}

模拟第三方接口===>>>>>>>>>>>>

package com.cn.me.siteTrans.interface;
import java.util.HashMap;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.google.gson.Gson;

@Controller
@RequestMapping("/siteTrans")
@SuppressWarnings("all")
public class SiteTransCtrl {
    @RequestMapping("/returnJson")
    @ResponseBody
    public Map returnJson(String param){
        Map<String , Object> map = new HashMap<String , Object>() ;
        try {            
            System.out.println(param);
            map.put("success", true) ;
            map.put("flag", true);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return map;
    }
}