一.

1、写一个HttpRequestUtils工具类，包括post请求和get请求

package com.brainlong.framework.util.httpclient; 
import net.sf.json.JSONObject;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; 
import java.io.IOException;import java.net.URLDecoder; public class HttpRequestUtils {  
private static Logger logger = LoggerFactory.getLogger(HttpRequestUtils.class);  
//日志记录   /**   * httpPost   * @param url 路径   * @param jsonParam 参数   * @return   */  
public static JSONObject httpPost(String url,JSONObject jsonParam){    
return httpPost(url, jsonParam, false);  
}   
/**   * post请求   * @param url     url地址   * @param jsonParam   参数   * @param noNeedResponse  不需要返回结果   * @return   */  
public static JSONObject httpPost(String url,JSONObject jsonParam, boolean noNeedResponse){    
//post请求返回结果    
DefaultHttpClient httpClient = new DefaultHttpClient();    
JSONObject jsonResult = null;    
HttpPost method = new HttpPost(url);    
try {      
if (null != jsonParam) {        
//解决中文乱码问题        
StringEntity entity = new StringEntity(jsonParam.toString(), "utf-8");        
entity.setContentEncoding("UTF-8");        
entity.setContentType("application/json");        
method.setEntity(entity);      }      
HttpResponse result = httpClient.execute(method);      
url = URLDecoder.decode(url, "UTF-8");      
/**请求发送成功，并得到响应**/      
if (result.getStatusLine().getStatusCode() == 200) {        
String str = "";        
try {          
/**读取服务器返回过来的json字符串数据**/          
str = EntityUtils.toString(result.getEntity());          
if (noNeedResponse) {            
return null;          
}          
/**把json字符串转换成json对象**/          
jsonResult = JSONObject.fromObject(str);        
} catch (Exception e) {          
logger.error("post请求提交失败:" + url, e);        
}      
}    
} catch (IOException e) {      
logger.error("post请求提交失败:" + url, e);    
}    
return jsonResult;  
}   
/**   * 发送get请求   * @param url  路径   * @return   */  
public static JSONObject httpGet(String url){    
//get请求返回结果    
JSONObject jsonResult = null;    
try {      
DefaultHttpClient client = new DefaultHttpClient();      
//发送get请求      
HttpGet request = new HttpGet(url);      
HttpResponse response = client.execute(request);       
/**请求发送成功，并得到响应**/      
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {        
/**读取服务器返回过来的json字符串数据**/        
String strResult = EntityUtils.toString(response.getEntity());        
/**把json字符串转换成json对象**/        
jsonResult = JSONObject.fromObject(strResult);        
url = URLDecoder.decode(url, "UTF-8");      
} else {        
logger.error("get请求提交失败:" + url);      
}    
} catch (IOException e) {      
logger.error("get请求提交失败:" + url, e);    
}    
return jsonResult;  }}