package com.hq.boss.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
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.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import org.apache.log4j.Logger;
/**
* HttpClient工具類
*/
public class HttpUtil {
private static Logger logger =Logger.getLogger(HttpUtil.class);
/**
* get請求
* @return
*/
? public static String doGet(String url) {
try {
HttpClient client =new DefaultHttpClient();
//發(fā)送get請求
? ? ? ? HttpGet request =new HttpGet(url);
HttpResponse response =client.execute(request);
/**請求發(fā)送成功，并得到響應(yīng)**/
? ? ? ? if (response.getStatusLine().getStatusCode() ==HttpStatus.SC_OK) {
/**讀取服務(wù)器返回過來的json字符串?dāng)?shù)據(jù)**/
? ? ? ? ? ? String strResult =EntityUtils.toString(response.getEntity());
return strResult;
}
}
catch (IOException e) {
e.printStackTrace();
}
return null;
}
/**
* post請求(用于key-value格式的參數(shù))
? ? * @param url
? ? * @param params
? ? * @return
*/
? public static String doPost(String url,Map params){
BufferedReader in =null;
try {
// 定義HttpClient
? ? ? ? HttpClient client =new DefaultHttpClient();
// 實(shí)例化HTTP方法
? ? ? ? HttpPost request =new HttpPost();
request.setURI(new URI(url));
//設(shè)置參數(shù)
? ? ? ? Listnvps =new ArrayList();
for (Iterator iter = params.keySet().iterator();iter.hasNext();) {
String name = (String)iter.next();
String value =String.valueOf(params.get(name));
nvps.add(new BasicNameValuePair(name,value));
//System.out.println(name +"-"+value);
? ? ? ? }
request.setEntity(new UrlEncodedFormEntity(nvps,HTTP.UTF_8));
HttpResponse response =client.execute(request);
int code =response.getStatusLine().getStatusCode();
if(code ==200){//請求成功
? ? ? ? ? ? in =new BufferedReader(new InputStreamReader(response.getEntity()
.getContent(),"utf-8"));
StringBuffer sb =new StringBuffer("");
String line ="";
String NL =System.getProperty("line.separator");
while ((line =in.readLine()) !=null) {
sb.append(line +NL);
}
in.close();
return sb.toString();
}
else{//
? ? ? ? ? ? System.out.println("狀態(tài)碼：" +code);
return null;
}
}
catch(Exception e){
e.printStackTrace();
return null;
}
}
/**
* post請求（用于請求json格式的參數(shù)）
? ? * @param url
? ? * @param params
? ? * @return
*/
? public static String doPost(String url,String params)throws Exception {
CloseableHttpClient httpclient =HttpClients.createDefault();
HttpPost httpPost =new HttpPost(url);// 創(chuàng)建httpPost
? ? ? httpPost.setHeader("Accept","application/json");
httpPost.setHeader("Content-Type","application/json");
String charSet ="UTF-8";
StringEntity entity =new StringEntity(params,charSet);
httpPost.setEntity(entity);
CloseableHttpResponse response =null;
try {
response =httpclient.execute(httpPost);
StatusLine status =response.getStatusLine();
int state =status.getStatusCode();
if (state ==HttpStatus.SC_OK) {
HttpEntity responseEntity =response.getEntity();
String jsonString =EntityUtils.toString(responseEntity);
return jsonString;
}
else{
logger.error("請求返回:"+state+"("+url+")");
}
}
finally {
if (response !=null) {
try {
response.close();
}catch (IOException e) {
e.printStackTrace();
}
}
try {
httpclient.close();
}catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
}
