HttpClient工具类
1.配置添加依赖
<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> </dependency>
2.依赖工具类
package com.cpl.tsl.utils; import org.apache.commons.lang.StringUtils; 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.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.BasicNameValuePair; import org.apache.http.protocol.HTTP; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.MediaType; import java.io.IOException; import java.nio.charset.Charset; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Map; /** * HttpClient工具类 * * @author: lll * @date: 2022年11月21日 14:11:51 */ public class HttpClientUtil { private static Logger logger = LoggerFactory.getLogger(HttpClientUtil.class); private static String CONTENTTYPE = "Content-Type"; /** * get请求 * * @param url 请求地址 * @param headers 请求头，可以为null * @return String */ public static String doGet(String url, Map<String, String> headers) { String httpCharset = "utf-8"; // 创建HttpClient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建HttpResponse对象 CloseableHttpResponse response = null; logger.info("request param info : {}", url); logger.info("request header info : {}", headers); try { try { // 创建HttpPost对象 HttpGet get = new HttpGet(url); // 封装请求头 if (null != headers) { headers.keySet().forEach(key -> { get.addHeader(key, headers.get(key)); }); } response = httpClient.execute(get); String result = EntityUtils.toString(response.getEntity(), Charset.forName(httpCharset)); logger.info("response info : {}", result); return result; } catch (IOException e) { logger.error("get链接失败：" + e.getMessage()); } finally { // 释放连接 response.close(); } } catch (IOException e) { logger.error("post关闭response失败：" + e.getMessage()); } return null; } /** * get请求 带时间配置请求 * * @param url 请求地址 * @param headers 请求头，可以为null * @param connectTimeout 连接超时时间 * @param connectionRequestTimeout 建立连接超时时间， * @param socketTimeout 读取数据超时时间 * @return String * @author: lll * @date: 2022年11月21日 17:11:21 */ public static String doGet(String url, Map<String, String> headers, int connectTimeout, int connectionRequestTimeout, int socketTimeout) { String httpCharset = "utf-8"; // 创建HttpClient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建HttpResponse对象 CloseableHttpResponse response = null; logger.info("request param info : {}", url); logger.info("request header info : {}", headers); try { try { // 创建HttpPost对象 HttpGet get = new HttpGet(url); get.setConfig(RequestConfig.custom().setConnectTimeout(connectTimeout).setConnectionRequestTimeout(connectionRequestTimeout).setSocketTimeout(socketTimeout).build()); // 封装请求头 if (null != headers) { headers.keySet().forEach(key -> { get.addHeader(key, headers.get(key)); }); } response = httpClient.execute(get); String result = EntityUtils.toString(response.getEntity(), Charset.forName(httpCharset)); logger.info("response info : {}", result); return result; } catch (IOException e) { logger.error("get链接失败：" + e.getMessage()); } finally { // 释放连接 response.close(); } } catch (IOException e) { logger.error("post关闭response失败：" + e.getMessage()); } return null; } /** * post请求 body为json 带时间配置请求 * * @param url 请求地址 * @param headers 请求头，可以为null * @param body json请求体 * @param connectTimeout 连接超时时间 * @param connectionRequestTimeout 建立连接超时时间， * @param socketTimeout 读取数据超时时间 * @return String * @author: lll * @date: 2022年11月21日 14:11:49 */ public static String doPost(String url, Map<String, String> headers, String body, int connectTimeout, int connectionRequestTimeout, int socketTimeout) { String httpCharset = "utf-8"; // 创建HttpClient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建HttpResponse对象 CloseableHttpResponse response = null; logger.info("request param info : {}", body); logger.info("request header info : {}", headers); try { try { // 创建HttpPost对象 HttpPost post = new HttpPost(url); post.setConfig(RequestConfig.custom().setConnectTimeout(connectTimeout).setConnectionRequestTimeout(connectionRequestTimeout).setSocketTimeout(socketTimeout).build()); // 封装请求头 if (null != headers) { headers.keySet().forEach(key -> { post.addHeader(key, headers.get(key)); }); } post.addHeader(HTTP.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE); // 封装请求体 if (StringUtils.isNotBlank(body)) { // 请求体主要封装在HttpEntity中 post.setEntity(new StringEntity(body, Charset.forName(httpCharset))); } response = httpClient.execute(post); // 处理响应 String result = EntityUtils.toString(response.getEntity(), Charset.forName(httpCharset)); logger.info("response info : {}", result); } catch (IOException e) { logger.error("post链接失败：" + e.getMessage()); } finally { // 释放连接 response.close(); } } catch (IOException e) { logger.error("post关闭response失败：" + e.getMessage()); } return null; } /** * post请求 body为json * * @param url 请求地址 * @param headers 请求头，可以为null * @param body json请求体 * @return String * @author: lll * @date: 2022年11月21日 14:11:49 */ public static String doPost(String url, Map<String, String> headers, String body) { String httpCharset = "utf-8"; // 创建HttpClient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建HttpResponse对象 CloseableHttpResponse response = null; logger.info("request param info : {}", body); logger.info("request header info : {}", headers); try { try { // 创建HttpPost对象 HttpPost post = new HttpPost(url); // 封装请求头 if (null != headers) { headers.keySet().forEach(key -> { post.addHeader(key, headers.get(key)); }); } post.addHeader(HTTP.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE); // 封装请求体 if (StringUtils.isNotBlank(body)) { // 请求体主要封装在HttpEntity中 post.setEntity(new StringEntity(body, Charset.forName(httpCharset))); } response = httpClient.execute(post); // 处理响应 String result = EntityUtils.toString(response.getEntity(), Charset.forName(httpCharset)); logger.info("response info : {}", result); } catch (IOException e) { logger.error("post链接失败：" + e.getMessage()); } finally { // 释放连接 response.close(); } } catch (IOException e) { logger.error("post关闭response失败：" + e.getMessage()); } return null; } /** * post请求 body为form * * post请求 body为json 带时间配置请求 * * @param url 请求地址 * @param headers 请求头，可以为null * @param body form请求体 * @return String * @author: lll * @date: 2022年11月21日 14:11:49 */ public static String doPost(String url, Map<String, String> headers, Map body, int connectTimeout, int connectionRequestTimeout, int socketTimeout) { String httpCharset = "utf-8"; // 创建HttpClient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建HttpResponse对象 CloseableHttpResponse response = null; logger.info("request param info : {}", body); logger.info("request header info : {}", headers); try { try { // 创建HttpPost对象 HttpPost post = new HttpPost(url); post.setConfig(RequestConfig.custom().setConnectTimeout(connectTimeout).setConnectionRequestTimeout(connectionRequestTimeout).setSocketTimeout(socketTimeout).build()); // 封装请求头 if (null != headers) { headers.keySet().forEach(key -> { post.addHeader(key, headers.get(key)); }); } // 封装请求体 List<NameValuePair> nvps = new ArrayList<>(); for (Iterator iter = body.keySet().iterator(); iter.hasNext(); ) { String name = (String) iter.next(); String value = String.valueOf(body.get(name)); nvps.add(new BasicNameValuePair(name, value)); } post.setEntity(new UrlEncodedFormEntity(nvps)); response = httpClient.execute(post); // 处理响应 String result = EntityUtils.toString(response.getEntity(), Charset.forName(httpCharset)); logger.info("response info : {}", result); } catch (IOException e) { logger.error("post链接失败：" + e.getMessage()); } finally { // 释放连接 response.close(); } } catch (IOException e) { logger.error("post关闭response失败：" + e.getMessage()); } return null; } /** * post请求 body为form * * post请求 body为json 带时间配置请求 * * @param url 请求地址 * @param headers 请求头，可以为null * @param body json请求体 * @param connectTimeout 连接超时时间 * @param connectionRequestTimeout 建立连接超时时间， * @param socketTimeout 读取数据超时时间 * @return String * @author: lll * @date: 2022年11月21日 14:11:49 */ public static String doPost(String url, Map<String, String> headers, Map body) { String httpCharset = "utf-8"; // 创建HttpClient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建HttpResponse对象 CloseableHttpResponse response = null; logger.info("request param info : {}", body); logger.info("request header info : {}", headers); try { try { // 创建HttpPost对象 HttpPost post = new HttpPost(url); // 封装请求头 if (null != headers) { headers.keySet().forEach(key -> { post.addHeader(key, headers.get(key)); }); } // 封装请求体 List<NameValuePair> nvps = new ArrayList<>(); for (Iterator iter = body.keySet().iterator(); iter.hasNext(); ) { String name = (String) iter.next(); String value = String.valueOf(body.get(name)); nvps.add(new BasicNameValuePair(name, value)); } post.setEntity(new UrlEncodedFormEntity(nvps)); response = httpClient.execute(post); // 处理响应 String result = EntityUtils.toString(response.getEntity(), Charset.forName(httpCharset)); logger.info("response info : {}", result); } catch (IOException e) { logger.error("post链接失败：" + e.getMessage()); } finally { // 释放连接 response.close(); } } catch (IOException e) { logger.error("post关闭response失败：" + e.getMessage()); } return null; } }
