package com.jourwon.httpclient.util;import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.apache.http.HttpStatus;import org.apache.http.NameValuePair;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpDelete;import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.methods.HttpPut;import org.apache.http.client.methods.HttpRequestBase;import org.apache.http.client.utils.URIBuilder;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import com.jourwon.httpclient.pojo.HttpClientResult;/**
* Description: httpClient工具类*
* @author JourWon
* @date Created on 2018年4月19日
*/
public class HttpClientUtils {
// 编码格式。发送编码格式统一用UTF-8
private static final String ENCODING = "UTF-8";
// 设置连接超时时间，单位毫秒。
private static final int CONNECT_TIMEOUT = 6000;
// 请求获取数据的超时时间(即响应时间)，单位毫秒。
private static final int SOCKET_TIMEOUT = 6000;
/**
* 发送get请求；不带请求头和请求参数
*
* @param url 请求地址
* @return
* @throws Exception
*/
public static HttpClientResult doGet(String url) throws Exception {
return doGet(url, null, null);
}
/**
* 发送get请求；带请求参数
*
* @param url 请求地址
* @param params 请求参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doGet(String url, Map params) throws Exception {
return doGet(url, null, params);
}
/**
* 发送get请求；带请求头和请求参数
*
* @param url 请求地址
* @param headers 请求头集合
* @param params 请求参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doGet(String url, Map headers, Map params) throws Exception {
// 创建httpClient对象CloseableHttpClient httpClient = HttpClients.createDefault();// 创建访问的地址
URIBuilder uriBuilder = new URIBuilder(url);
if (params != null) {
Set> entrySet = params.entrySet();
for (Entry entry : entrySet) {
uriBuilder.setParameter(entry.getKey(), entry.getValue());
}
}
// 创建http对象HttpGet httpGet = new HttpGet(uriBuilder.build());/**
* setConnectTimeout：设置连接超时时间，单位毫秒。
* setConnectionRequestTimeout：设置从connect Manager(连接池)获取Connection
* 超时时间，单位毫秒。这个属性是新加的属性，因为目前版本是可以共享连接池的。
* setSocketTimeout：请求获取数据的超时时间(即响应时间)，单位毫秒。 如果访问一个接口，多少时间内无法返回数据，就直接放弃此次调用。
*/
RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(CONNECT_TIMEOUT).setSocketTimeout(SOCKET_TIMEOUT).build();
httpGet.setConfig(requestConfig);// 设置请求头
packageHeader(headers, httpGet);// 创建httpResponse对象CloseableHttpResponse httpResponse = null;try {
// 执行请求并获得响应结果
return getHttpClientResult(httpResponse, httpClient, httpGet);} finally {
// 释放资源
release(httpResponse, httpClient);}
}
/**
* 发送post请求；不带请求头和请求参数
*
* @param url 请求地址
* @return
* @throws Exception
*/
public static HttpClientResult doPost(String url) throws Exception {
return doPost(url, null, null);
}
/**
* 发送post请求；带请求参数
*
* @param url 请求地址
* @param params 参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doPost(String url, Map params) throws Exception {
return doPost(url, null, params);
}
/**
* 发送post请求；带请求头和请求参数
*
* @param url 请求地址
* @param headers 请求头集合
* @param params 请求参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doPost(String url, Map headers, Map params) throws Exception {
// 创建httpClient对象CloseableHttpClient httpClient = HttpClients.createDefault();// 创建http对象HttpPost httpPost = new HttpPost(url);/**
* setConnectTimeout：设置连接超时时间，单位毫秒。
* setConnectionRequestTimeout：设置从connect Manager(连接池)获取Connection
* 超时时间，单位毫秒。这个属性是新加的属性，因为目前版本是可以共享连接池的。
* setSocketTimeout：请求获取数据的超时时间(即响应时间)，单位毫秒。 如果访问一个接口，多少时间内无法返回数据，就直接放弃此次调用。
*/
RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(CONNECT_TIMEOUT).setSocketTimeout(SOCKET_TIMEOUT).build();
httpPost.setConfig(requestConfig);// 设置请求头
/*httpPost.setHeader("Cookie", "");httpPost.setHeader("Connection", "keep-alive");httpPost.setHeader("Accept", "application/json");httpPost.setHeader("Accept-Language", "zh-CN,zh;q=0.9");httpPost.setHeader("Accept-Encoding", "gzip, deflate, br");httpPost.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36");*/packageHeader(headers, httpPost);// 封装请求参数
packageParam(params, httpPost);// 创建httpResponse对象CloseableHttpResponse httpResponse = null;try {
// 执行请求并获得响应结果
return getHttpClientResult(httpResponse, httpClient, httpPost);} finally {
// 释放资源
release(httpResponse, httpClient);}
}
/**
* 发送put请求；不带请求参数
*
* @param url 请求地址
* @param params 参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doPut(String url) throws Exception {
return doPut(url);
}
/**
* 发送put请求；带请求参数
*
* @param url 请求地址
* @param params 参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doPut(String url, Map params) throws Exception {
CloseableHttpClient httpClient = HttpClients.createDefault();HttpPut httpPut = new HttpPut(url);RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(CONNECT_TIMEOUT).setSocketTimeout(SOCKET_TIMEOUT).build();
httpPut.setConfig(requestConfig);packageParam(params, httpPut);CloseableHttpResponse httpResponse = null;try {
return getHttpClientResult(httpResponse, httpClient, httpPut);} finally {
release(httpResponse, httpClient);}
}
/**
* 发送delete请求；不带请求参数
*
* @param url 请求地址
* @param params 参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doDelete(String url) throws Exception {
CloseableHttpClient httpClient = HttpClients.createDefault();HttpDelete httpDelete = new HttpDelete(url);RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(CONNECT_TIMEOUT).setSocketTimeout(SOCKET_TIMEOUT).build();
httpDelete.setConfig(requestConfig);CloseableHttpResponse httpResponse = null;try {
return getHttpClientResult(httpResponse, httpClient, httpDelete);} finally {
release(httpResponse, httpClient);}
}
/**
* 发送delete请求；带请求参数
*
* @param url 请求地址
* @param params 参数集合
* @return
* @throws Exception
*/
public static HttpClientResult doDelete(String url, Map params) throws Exception {
if (params == null) {
params = new HashMap();
}
params.put("_method", "delete");
return doPost(url, params);
}
/**
* Description: 封装请求头
* @param params
* @param httpMethod*/
public static void packageHeader(Map params, HttpRequestBase httpMethod) {// 封装请求头
if (params != null) {
Set> entrySet = params.entrySet();
for (Entry entry : entrySet) {
// 设置到请求头到HttpRequestBase对象中
httpMethod.setHeader(entry.getKey(), entry.getValue());}
}
}
/**
* Description: 封装请求参数
*
* @param params
* @param httpMethod* @throws UnsupportedEncodingException
*/
public static void packageParam(Map params, HttpEntityEnclosingRequestBase httpMethod)throws UnsupportedEncodingException {
// 封装请求参数
if (params != null) {
List nvps = new ArrayList();
Set> entrySet = params.entrySet();
for (Entry entry : entrySet) {
nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
// 设置到请求的http对象中httpMethod.setEntity(new UrlEncodedFormEntity(nvps, ENCODING));}
}
/**
* Description: 获得响应结果
*
* @param httpResponse* @param httpClient* @param httpMethod* @return
* @throws Exception
*/
public static HttpClientResult getHttpClientResult(CloseableHttpResponse httpResponse,CloseableHttpClient httpClient, HttpRequestBase httpMethod) throws Exception {// 执行请求
httpResponse = httpClient.execute(httpMethod);// 获取返回结果
if (httpResponse != null && httpResponse.getStatusLine() != null) {String content = "";
if (httpResponse.getEntity() != null) {content = EntityUtils.toString(httpResponse.getEntity(), ENCODING);}
return new HttpClientResult(httpResponse.getStatusLine().getStatusCode(), content);}
return new HttpClientResult(HttpStatus.SC_INTERNAL_SERVER_ERROR);
}
/**
* Description: 释放资源
*
* @param httpResponse* @param httpClient* @throws IOException
*/
public static void release(CloseableHttpResponse httpResponse, CloseableHttpClient httpClient) throws IOException {// 释放资源
if (httpResponse != null) {httpResponse.close();}
if (httpClient != null) {httpClient.close();}
}
}