HTTP请求工具类

/** * Copyright (c) 2013-Now http://jeesite.com All rights reserved. */package com.jeesite.common.web.http;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.security.GeneralSecurityException;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.List;import java.util.Map;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLSession;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;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.client.methods.HttpUriRequest;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.conn.ssl.TrustStrategy;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.BasicNameValuePair;import org.apache.http.ssl.SSLContextBuilder;import org.apache.http.util.EntityUtils;/** * HTTP客户端工具类（支持HTTPS） * @author Austin Ding * @version 2018-3-27 */public class HttpClientUtils { ?????/** ???* http的get请求 ???* @param url ???*/ ??public static String get(String url) { ?????return get(url, "UTF-8"); ??} ?????/** ???* http的get请求 ???* @param url ???*/ ??public static String get(String url, String charset) { ?????HttpGet httpGet = new HttpGet(url); ?????return executeRequest(httpGet, charset); ??} ?????/** ???* http的get请求，增加异步请求头参数 ???* @param url ???*/ ??public static String ajaxGet(String url) { ?????return ajaxGet(url, "UTF-8"); ??} ?????/** ???* http的get请求，增加异步请求头参数 ???* @param url ???*/ ??public static String ajaxGet(String url, String charset) { ?????HttpGet httpGet = new HttpGet(url); ?????httpGet.setHeader("X-Requested-With", "XMLHttpRequest"); ?????return executeRequest(httpGet, charset); ??} ??/** ???* http的post请求，传递map格式参数 ???*/ ??public static String post(String url, Map<String, String> dataMap) { ?????return post(url, dataMap, "UTF-8"); ??} ??/** ???* http的post请求，传递map格式参数 ???*/ ??public static String post(String url, Map<String, String> dataMap, String charset) { ?????HttpPost httpPost = new HttpPost(url); ?????try { ????????if (dataMap != null){ ???????????List<NameValuePair> nvps = new ArrayList<NameValuePair>(); ???????????for (Map.Entry<String, String> entry : dataMap.entrySet()) { ??????????????nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); ???????????} ???????????UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nvps, charset); ???????????formEntity.setContentEncoding(charset); ???????????httpPost.setEntity(formEntity); ????????} ?????} catch (UnsupportedEncodingException e) { ????????e.printStackTrace(); ?????} ?????return executeRequest(httpPost, charset); ??} ??/** ???* http的post请求，增加异步请求头参数，传递map格式参数 ???*/ ??public static String ajaxPost(String url, Map<String, String> dataMap) { ?????return ajaxPost(url, dataMap, "UTF-8"); ??} ??/** ???* http的post请求，增加异步请求头参数，传递map格式参数 ???*/ ??public static String ajaxPost(String url, Map<String, String> dataMap, String charset) { ?????HttpPost httpPost = new HttpPost(url); ?????httpPost.setHeader("X-Requested-With", "XMLHttpRequest"); ?????try { ????????if (dataMap != null){ ???????????List<NameValuePair> nvps = new ArrayList<NameValuePair>(); ???????????for (Map.Entry<String, String> entry : dataMap.entrySet()) { ??????????????nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); ???????????} ???????????UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nvps, charset); ???????????formEntity.setContentEncoding(charset); ???????????httpPost.setEntity(formEntity); ????????} ?????} catch (UnsupportedEncodingException e) { ????????e.printStackTrace(); ?????} ?????return executeRequest(httpPost, charset); ??} ??/** ???* http的post请求，增加异步请求头参数，传递json格式参数 ???*/ ??public static String ajaxPostJson(String url, String jsonString) { ?????return ajaxPostJson(url, jsonString, "UTF-8"); ??} ??/** ???* http的post请求，增加异步请求头参数，传递json格式参数 ???*/ ??public static String ajaxPostJson(String url, String jsonString, String charset) { ?????HttpPost httpPost = new HttpPost(url); ?????httpPost.setHeader("X-Requested-With", "XMLHttpRequest");// ???try { ????????StringEntity stringEntity = new StringEntity(jsonString, charset);// 解决中文乱码问题 ????????stringEntity.setContentEncoding(charset); ????????stringEntity.setContentType("application/json"); ????????httpPost.setEntity(stringEntity);// ???} catch (UnsupportedEncodingException e) {// ??????e.printStackTrace();// ???} ?????return executeRequest(httpPost, charset); ??} ??/** ???* 执行一个http请求，传递HttpGet或HttpPost参数 ???*/ ??public static String executeRequest(HttpUriRequest httpRequest) { ?????return executeRequest(httpRequest, "UTF-8"); ??} ??/** ???* 执行一个http请求，传递HttpGet或HttpPost参数 ???*/ ??public static String executeRequest(HttpUriRequest httpRequest, String charset) { ?????CloseableHttpClient httpclient; ?????if ("https".equals(httpRequest.getURI().getScheme())){ ????????httpclient = createSSLInsecureClient(); ?????}else{ ????????httpclient = HttpClients.createDefault(); ?????} ?????String result = ""; ?????try { ????????try { ???????????CloseableHttpResponse response = httpclient.execute(httpRequest); ???????????HttpEntity entity = null; ???????????try { ??????????????entity = response.getEntity(); ??????????????result = EntityUtils.toString(entity, charset); ???????????} finally { ??????????????EntityUtils.consume(entity); ??????????????response.close(); ???????????} ????????} finally { ???????????httpclient.close(); ????????} ?????}catch(IOException ex){ ????????ex.printStackTrace(); ?????} ?????return result; ??} ?????/** ???* 创建 SSL连接 ???*/ ??public static CloseableHttpClient createSSLInsecureClient() { ?????try { ????????SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(new TrustStrategy() { ???????????@Override ???????????public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException { ??????????????return true; ???????????} ????????}).build(); ????????SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, new HostnameVerifier() { ???????????@Override ???????????public boolean verify(String hostname, SSLSession session) { ??????????????return true; ???????????} ????????}); ????????return HttpClients.custom().setSSLSocketFactory(sslsf).build(); ?????} catch (GeneralSecurityException ex) { ????????throw new RuntimeException(ex); ?????} ??} ??}