基于HttpClient JSONObject与JSONArray的使用

package com.spring.utils;import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
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 Object 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 Object httpPost(String url,JSONObject jsonParam, boolean noNeedResponse){
//post请求返回结果
HttpClient httpClient = new DefaultHttpClient();
Object 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 strResult = "";
try {
/**读取服务器返回过来的json字符串数据**/
strResult = EntityUtils.toString(result.getEntity());
if (noNeedResponse) {
return null;
}
if(strResult.startsWith("[") && strResult.endsWith("]")){
/**把json字符串转换成json对象数组**/
jsonResult = JSONArray.fromObject(strResult); // 首先把字符串转成 JSONArray 对象
}else if(strResult.startsWith("{") && strResult.endsWith("}"))
{
/**把json字符串转换成json对象**/
jsonResult = JSONObject.fromObject(strResult);
}else
{
return strResult;
}
} 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 Object httpGet(String url){
//get请求返回结果
Object jsonResult = null;
String strResult = null;
try {
HttpClient 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**/
strResult = EntityUtils.toString(response.getEntity());
/**把json字符串转换成json对象**/
//接收{}对象，此处接收数组对象会有异常
if(strResult.startsWith("[") && strResult.endsWith("]")){
jsonResult = JSONArray.fromObject(strResult); // 首先把字符串转成 JSONArray 对象
}else if(strResult.startsWith("{") && strResult.endsWith("}"))
{
jsonResult = JSONObject.fromObject(strResult);
}else
{
return 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;
}}