HttpClientUtils.java
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package com.cnlive.shenhe.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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.HttpClients;
import org.apache.http.message.BasicHeader;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* @author Administrator
*/
public class HttpClientUtils {
public static String post(String url, Map<String, Object> map) {
// 创建post请求
HttpPost post = new HttpPost(url);
String text = "请求失败";
try {
// 创建http访问的客户端
HttpClient client = HttpClients.createDefault();
List<NameValuePair> param = new ArrayList<>();
if(map!=null&&map.size()>0){
for (Map.Entry<String, Object> entry : map.entrySet()) {
param.add(new BasicNameValuePair(entry.getKey(), entry.getValue().toString()));
}
}
// 用参数构造请求实体
HttpEntity postEntity = new UrlEncodedFormEntity(param, "utf-8");
// 把请求实体放到post请求中
post.setEntity(postEntity);
// 执行post请求
HttpResponse response = client.execute(post);
// 从响应中取得一个响应实体
HttpEntity entity = response.getEntity();
// 把响应实体转成文本信息
text = EntityUtils.toString(entity);
} catch (Exception e) {
e.printStackTrace();
} finally {
post.releaseConnection();// 释放连接
}
return text;
}
public static String get(String url) {
String text = "请求失败";
HttpGet httpGet = null;
try {
// 创建http访问的客户端
HttpClient client = HttpClients.createDefault();
httpGet = new HttpGet(url);
// 执行get请求
HttpResponse response = client.execute(httpGet);
// 从响应中取得一个响应实体
HttpEntity entity = response.getEntity();
// 把响应实体转成文本信息
text = EntityUtils.toString(entity);
} catch (Exception e) {
e.printStackTrace();
} finally {
httpGet.releaseConnection();// 释放连接
}
return text;
}
public static String get(String url, Map<String, String> map) {
String text = "请求失败";
HttpGet httpGet = null;
try {
// 创建http访问的客户端
HttpClient client = HttpClients.createDefault();
List<NameValuePair> params = new ArrayList<NameValuePair>();
if (map != null && map.size() > 0) {
for (Map.Entry<String, String> entry : map.entrySet()) {
params.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
}
String paramsStr = EntityUtils.toString(new UrlEncodedFormEntity(params, "UTF-8"));
httpGet = new HttpGet(url + "?" + paramsStr);
// 执行get请求
HttpResponse response = client.execute(httpGet);
// 从响应中取得一个响应实体
HttpEntity entity = response.getEntity();
// 把响应实体转成文本信息
text = EntityUtils.toString(entity);
} catch (Exception e) {
e.printStackTrace();
} finally {
httpGet.releaseConnection();// 释放连接
}
return text;
}
public static String post_str(String url, Map<String, String> map) {
HttpPost post = null;
String text = "请求失败";
try {
// 创建http访问的客户端
HttpClient client = HttpClients.createDefault();
List<NameValuePair> param = new ArrayList<>();
if (map != null && map.size() > 0) {
for (Map.Entry<String, String> entry : map.entrySet()) {
param.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
}
// 用参数构造请求实体
HttpEntity postEntity = new UrlEncodedFormEntity(param, "utf-8");
// 创建post请求
post = new HttpPost(url);
// 把请求实体放到post请求中
post.setEntity(postEntity);
// 执行post请求
HttpResponse response = client.execute(post);
// 从响应中取得一个响应实体
HttpEntity entity = response.getEntity();
// 把响应实体转成文本信息
text = EntityUtils.toString(entity);
} catch (Exception e) {
e.printStackTrace();
} finally {
// 释放连接
post.releaseConnection();
}
return text;
}
public static String HttpPostWithJson(String url, String json) {
CloseableHttpClient httpClient = null;
try {
httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
httpPost.setHeader("Content-Type", "application/json;charset=utf-8");
StringEntity se = new StringEntity(json, "UTF-8");
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
"application/json"));
httpPost.setEntity(se);
CloseableHttpResponse response = httpClient.execute(httpPost);
// 返回数据
HttpEntity entity = response.getEntity();
String result = EntityUtils.toString(entity, "UTF-8");
return result;
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
if (httpClient != null) {
try {
httpClient.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* httpPost
* @param url 请求url
* @param jsonParam
* @param noNeedResponse 是否获取接口response
* @return
* @throws Exception
*/
public static JSONObject httpPost(String url, JSONObject jsonParam, boolean noNeedResponse) throws Exception{
CloseableHttpClient httpClient = HttpClients.createDefault();
JSONObject jsonResult = null;
HttpPost method = new HttpPost(url);
try {
if (null != jsonParam) {
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");
if (result.getStatusLine().getStatusCode() == 200) {
String str = "";
try {
str = EntityUtils.toString(result.getEntity());
if (noNeedResponse) {
return null;
}
jsonResult = JSON.parseObject(str);
} catch (Exception e) {
System.out.println("posturl:" + url + ", err=" + e.getMessage());
throw new Exception(e);
}
}
} catch (IOException e) {
System.out.println("posturl:" + url + ", err=" + e.getMessage());
throw new IOException(e);
}
return jsonResult;
}
}