本文主要是介绍基于jdk11和基于apache-httpclient的http请求工具类，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1.基于apache-httpclient
需要引入依赖
<dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.3.5</version></dependency>工具类如下：
package com.bw.edgeagent.common.util;import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.bw.edgeagent.uitl.JSONUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHeaders;
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.*;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testcontainers.shaded.okhttp3.OkHttpClient;
import org.testcontainers.shaded.okhttp3.Request;
import org.testcontainers.shaded.okhttp3.RequestBody;
import org.testcontainers.shaded.okhttp3.Response;import javax.net.ssl.SSLContext;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.util.*;/*** @Author MXF* @Description Htpp请求工具类* @Date 2023/12/21 10:59*/
public class IotHttpClientUtil {private static Logger log = LoggerFactory.getLogger(IotHttpClientUtilbak.class);private final static String DEFAULT_ENCODE = "UTF-8";/*** 服务端返回的cookie，有更新则覆盖*/private static String COOKIE_VALUE = "";/*** 默认 10s 超时*/private static final int TIME_OUT = 10 * 1000;private IotHttpClientUtilbak() {}/*** 忽略 ssl** @return*/private static SSLContext buildIgnoreContext() {SSLContext sslContext = null;try {sslContext = SSLContexts.custom().setProtocol("TLSv1.2").build();} catch (NoSuchAlgorithmException | KeyManagementException e) {log.error(e.getMessage(), e);}return sslContext;}private static CloseableHttpClient getClient(int timeOut) {RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(timeOut).setConnectTimeout(timeOut).setSocketTimeout(timeOut).build();SSLContext sslContext = buildIgnoreContext();// 注册Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create().register("http", PlainConnectionSocketFactory.INSTANCE).register("https", new SSLConnectionSocketFactory(sslContext)).build();PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(registry);return HttpClients.custom().setConnectionManager(connManager).setDefaultRequestConfig(requestConfig).build();}/*** POST application/json请求** @param url 请求地址* @param jsonStr 请求数据json字符串* @param headers 请求头* @param timeOut 超时时间* @return*/public static String sendPostJson(String url, String jsonStr, Map<String, String> headers, int timeOut) {HttpPost post = new HttpPost(url);if (headers != null && headers.size() > 0) {for (Map.Entry<String, String> entry : headers.entrySet()) {post.setHeader(entry.getKey(), entry.getValue());}}StringEntity entity = new StringEntity(jsonStr, DEFAULT_ENCODE);entity.setContentEncoding(DEFAULT_ENCODE);entity.setContentType("application/json;charset=" + DEFAULT_ENCODE);post.setEntity(entity);return execute(post, timeOut);}public static String sendDelete(String url, Map<String, String> headers, int timeOut) {HttpDelete httpDelete = new HttpDelete(url);if (headers != null && headers.size() > 0) {for (Map.Entry<String, String> entry : headers.entrySet()) {httpDelete.setHeader(entry.getKey(), entry.getValue());}}return execute(httpDelete, timeOut);}public static String sendDelete(String url, Map<String, String> headers) {return sendDelete(url, headers, TIME_OUT);}/*** POST application/json请求** @param url 请求地址* @param jsonStr 请求数据json字符串* @param headers 请求头* @return*/public static String sendPostJson(String url, String jsonStr, Map<String, String> headers) {return sendPostJson(url, jsonStr, headers, TIME_OUT);}/*** POST application/json请求** @param url 请求地址* @param jsonStr 请求数据json字符串* @param timeOut 超时时间* @return*/public static String sendPostJson(String url, String jsonStr, int timeOut) {return sendPostJson(url, jsonStr, new HashMap<>(0), timeOut);}/*** POST application/json请求** @param url 请求地址* @param jsonStr 请求数据json字符串* @return*/public static String sendPostJson(String url, String jsonStr) {return sendPostJson(url, jsonStr, TIME_OUT);}/*** POST application/json请求** @param url 请求地址* @param data 请求数据* @return*/public static String sendPostJson(String url, Object data) {if (data == null) {data = new HashMap(0);}return sendPostJson(url, JSONUtil.toJsonStr(data));}/*** POST application/json请求** @param url 请求地址* @param jsonStr 请求数据json字符串* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*/public static <T> T postJsonForObject(String url, String jsonStr, Class<T> responseType) {String result = sendPostJson(url, jsonStr);if (StringUtils.isNotBlank(result)) {return JSONUtil.toBean(result, responseType);} else {return null;}}/*** POST application/json请求** @param url 请求地址* @param jsonStr 请求数据json字符串* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*//* public static <T> T postJsonForObject(String url, String jsonStr, TypeReference<T> responseType) {String result = sendPostJson(url, jsonStr);if (StringUtils.isNotBlank(result)) {return JSONUtil.toBean(result, responseType);} else {return null;}}*//*** POST application/json请求** @param url 请求地址* @param data 请求数据* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*/public static <T> T postJsonForObject(String url, Object data, Class<T> responseType) {if (data == null) {data = new HashMap(0);}return postJsonForObject(url, JSONUtil.toJsonStr(data), responseType);}/*** POST application/json请求** @param url 请求地址* @param data 请求数据* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*/public static <T> T postJsonForObject(String url, Object data, T responseType) {if (data == null) {data = new HashMap(0);}return postJsonForObject(url, JSONUtil.toJsonStr(data), responseType);}/*** POST application/x-www-form-urlencoded 请求** @param url 请求地址* @param params 请求数据map* @return*/public static String sendPostForm(String url, Map<String, Object> params) {// 手动添加CookiesMap<String, String> hearParams = new HashMap<>();if (ObjectUtil.isNotEmpty(COOKIE_VALUE)) {// 添加Cookie到请求头hearParams.put("Cookie", COOKIE_VALUE);}return sendPostForm(url, params, hearParams);}/*** POST application/x-www-form-urlencoded 请求** @param url 请求地址* @param params 请求数据map* @param timeOut 超时时间* @return*/public static String sendPostForm(String url, Map<String, Object> params, int timeOut) {Map<String, String> headers = new HashMap<>(1);return sendPostForm(url, params, headers, timeOut);}/*** POST application/x-www-form-urlencoded 请求** @param url 请求地址* @param params 请求数据map* @param headers 请求头* @return*/public static String sendPostForm(String url, Map<String, Object> params, Map<String, String> headers) {return sendPostForm(url, params, headers, TIME_OUT);}/*** POST application/x-www-form-urlencoded 请求** @param url 请求地址* @param params 请求数据map* @param headers 请求头* @param timeOut 超时时间* @return*/public static String sendPostForm(String url, Map<String, Object> params, Map<String, String> headers, int timeOut) {UrlEncodedFormEntity reqEntity = createFormEntity(params);HttpPost httppost = new HttpPost(url);httppost.addHeader(HttpHeaders.CONTENT_TYPE, "application/x-www-form-urlencoded");if (headers != null) {for (Map.Entry<String, String> entry : headers.entrySet()) {if (StrUtil.equalsAnyIgnoreCase(entry.getKey(), HttpHeaders.CONTENT_LENGTH, HttpHeaders.CONTENT_TYPE)) {continue;}httppost.addHeader(entry.getKey(), entry.getValue());}}httppost.setEntity(reqEntity);return execute(httppost, timeOut);}/*** POST application/x-www-form-urlencoded 请求** @param url 请求地址* @param params 请求数据map* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*/
/* public static <T> T postFormForObject(String url, Map<String, String> params, Class<T> responseType) {String result = sendPostForm(url, params);if (StringUtils.isNotBlank(result)) {return JSONUtil.toBean(result, responseType);} else {return null;}}*//*** POST application/x-www-form-urlencoded 请求** @param url 请求地址* @param params 请求数据map* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*/public static <T> T postFormForObject(String url, Map<String, Object> params, Class<T> responseType) {String result = sendPostForm(url, params);if (StringUtils.isNotBlank(result)) {return JSONUtil.toBean(result, responseType);} else {return null;}}/*** GET 请求** @param url 请求地址* @param params 请求参数* @param timeOut 超时时间* @return*/public static String sendGet(String url, Map<String, Object> params, int timeOut) {return sendGet(url, params, new HashMap<>(1), timeOut);}/*** GET 请求** @param url 请求地址* @param params 请求参数* @return*/public static String sendGet(String url, Map<String, Object> params) {// 手动添加CookiesMap<String, String> hearParams = new HashMap<>();if (ObjectUtil.isNotEmpty(COOKIE_VALUE)) {// 添加Cookie到请求头hearParams.put("Cookie", COOKIE_VALUE);}return sendGet(url, params, hearParams);}/*** GET 请求** @param url url* @param params 请求参数* @param headers 请求头* @param timeOut 超时时间* @return*/public static String sendGet(String url, Map<String, Object> params, Map<String, String> headers, int timeOut) {if (url == null) {return null;}try {URIBuilder uriBuilder = new URIBuilder(url);if (null != params) {uriBuilder.setParameters(getNameValuePairList(params));}URI uri = uriBuilder.build();String rawQueryString = uri.getRawQuery();//拼接urlif (StringUtils.isNotBlank(rawQueryString)) {// 防止原本url里面就有参数if (!url.contains("?")) {url = url + "?";}if (url.endsWith("?")) {url = url + rawQueryString;} else {url = url + "&" + rawQueryString;}}HttpGet httpGet = new HttpGet(url);if (headers != null) {Set<Map.Entry<String, String>> entrySet = headers.entrySet();for (Map.Entry<String, String> entry : entrySet) {httpGet.setHeader(entry.getKey(), entry.getValue());}}return execute(httpGet, timeOut);} catch (URISyntaxException e) {log.error(e.getMessage(), e);}return null;}/*** GET 请求** @param url 请求地址* @param params 请求参数* @param headers 请求头* @return*/public static String sendGet(String url, Map<String, Object> params, Map<String, String> headers) {return sendGet(url, params, headers, TIME_OUT);}/*** GET 请求** @param url 请求地址* @param params 请求参数* @param responseType 返回值类型* @return* @author lizhenjiang* @date 2020/05/30*/public static <T> T getForObject(String url, Map<String, Object> params, Class<T> responseType) {String result = sendGet(url, params);if (StringUtils.isNotBlank(result)) {return JSONUtil.toBean(result, responseType);} else {return null;}}private static List<NameValuePair> getNameValuePairList(Map<String, Object> params) {List<NameValuePair> list = new ArrayList<>();try {if (params != null && !params.isEmpty()) {for (String key : params.keySet()) {String value = params.get(key).toString();if (value != null) {list.add(new BasicNameValuePair(key, value));}}}} catch (Exception e) {log.error(e.getMessage(), e);}return list;}private static UrlEncodedFormEntity createFormEntity(Map<String, Object> pram) {try {List<NameValuePair> formParams = getNameValuePairList(pram);return new UrlEncodedFormEntity(formParams, DEFAULT_ENCODE);} catch (UnsupportedEncodingException e) {log.error(e.getMessage(), e);}return null;}private static String execute(HttpRequestBase requestBase, int timeOut) {StringBuilder sb = new StringBuilder();BufferedReader reader = null;CloseableHttpResponse response = null;CloseableHttpClient httpClient = getClient(timeOut);try {// 执行long start = System.currentTimeMillis();response = httpClient.execute(requestBase);//Header[] headers = response.getAllHeaders();//获取服务端返回的cookie并设置到全局变量，下一次发起请求使用，有更新则覆盖Header[] cookies = response.getHeaders("Set-Cookie");if (ObjectUtil.isNotEmpty(cookies)) {System.out.println(cookies);StringBuilder cookieValue = new StringBuilder();for (Header h : cookies) {cookieValue.append(h.getValue());}COOKIE_VALUE = cookieValue.toString();}log.info("请求id: {} , url: {} , 耗时: {} ", requestBase.getURI().toString(), (System.currentTimeMillis() - start));HttpEntity entity = response.getEntity();reader = new BufferedReader(new InputStreamReader(entity.getContent(), DEFAULT_ENCODE));String line = reader.readLine();while (line != null) {sb.append(line);line = reader.readLine();}EntityUtils.consume(entity);} catch (Exception e) {log.error("远程调用异常", e);} finally {try {if (reader != null) {reader.close();}if (response != null) {response.close();}httpClient.close();} catch (IOException e) {log.error("", e);}}return sb.toString();}/*** POST multipart/form-data 请求** @param requestUrl* @param body* @return*/public static String sendPostWithFile(String requestUrl, RequestBody body) {try {OkHttpClient client = new OkHttpClient().newBuilder().build();Request request = new Request.Builder().url(requestUrl).method("POST", body).addHeader("Content-Type", "multipart/form-data").build();Response response = client.newCall(request).execute();if (response.body() == null) {log.info("短信发送httpClent获取数据为空");return null;}log.info("from-data:" + response.body().toString());return response.body().string();} catch (Exception e) {log.info("******短信发送httpClent 请求出错****" + e.getMessage());} finally {}return null;}
}2.基于jdk11
工具类代码如下：
package com.bw.edgeagent.common.util;import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpHeaders;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.Charset;
import java.security.KeyStore;
import java.security.SecureRandom;
import java.util.List;
import java.util.Map;/*** @Author MXF* @Description Htpp请求工具类* @Date 2023/12/21 10:59*/
public class IotHttpUtil {private final static String DEFAULT_ENCODE = "UTF-8";/*** 服务端返回的cookie，有更新则覆盖*/private static String COOKIE_VALUE = "";/*** 默认 10s 超时*/private static final int TIME_OUT = 10 * 1000;private IotHttpUtil() {}/*** 发送GET请求** @param url* @return*/public static String get(String url) {return get(url, null);}/*** 发送GET请求** @param url* @param params* @return*/public static String get(String url, Map<String, String> params) {HttpRequest.Builder requestBuilder = HttpRequest.newBuilder(URI.create(buildUrlWithParams(url, params)));if (ObjectUtil.isNotEmpty(COOKIE_VALUE)) {//手动添加Cookies,添加Cookie到请求头requestBuilder.header("Cookie", COOKIE_VALUE);}HttpRequest request = requestBuilder.header("Content-Type", "application/x-www-form-urlencoded").GET().build();return send(request);}/*** 给访问路径拼接参数** @param url* @param params* @return*/private static String buildUrlWithParams(String url, Map<String, String> params) {if (params == null || params.isEmpty()) {return url;}StringBuilder sb = new StringBuilder(url);// 若已有参数则和之前的参数合并sb.append(url.indexOf('?') == -1 ? '?' : '&');// 循环拼接参数params.forEach((key, value) -> {if (StrUtil.isNotBlank(value)) {try {value = URLEncoder.encode(value, Charset.defaultCharset());} catch (Exception e) {throw new RuntimeException(e);}sb.append(key).append('=').append(value).append('&');}});// 去掉最后的&return sb.substring(0, sb.length() - 1);}/*** 发送POST请求** @param url* @param data* @return*/public static String post(String url, String data) {return post(url, data, null);}/*** 发送POST请求** @param url* @param data* @param params* @return*/public static String post(String url, String data, Map<String, String> params) {HttpRequest.Builder requestBuilder = HttpRequest.newBuilder(URI.create(buildUrlWithParams(url, params)));if (ObjectUtil.isNotEmpty(COOKIE_VALUE)) {//手动添加Cookies,添加Cookie到请求头requestBuilder.header("Cookie", COOKIE_VALUE);}HttpRequest request = requestBuilder.header("Content-Type", "application/x-www-form-urlencoded").POST(HttpRequest.BodyPublishers.ofString(data, Charset.forName(Charset.defaultCharset().toString()))).build();return send(request);}/*** 发送带本地证书的POST请求** @param url* @param data* @param certFile* @param certPwd* @return*/public static String postWithCertificate(String url, String data, File certFile, char[] certPwd) {HttpRequest request = HttpRequest.newBuilder(URI.create(url)).header("Content-Type", "application/x-www-form-urlencoded").POST(HttpRequest.BodyPublishers.ofString(data, Charset.forName(Charset.defaultCharset().toString()))).build();try {// 实例化SSL上下文SSLContext sslContext = SSLContext.getInstance("TLS");// 实例化密钥管理工厂KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());// 实例化密钥库KeyStore keyStore = KeyStore.getInstance("PKCS12");// 加载证书文件和密码keyStore.load(new FileInputStream(certFile), certPwd);// 初始化密钥管理工厂keyManagerFactory.init(keyStore, certPwd);// 初始化SSL上下文sslContext.init(keyManagerFactory.getKeyManagers(), null, new SecureRandom());// 构建HTTP客户端实例HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();return client.sendAsync(request, HttpResponse.BodyHandlers.ofString()).thenApply(HttpResponse::body).get();} catch (Exception e) {throw new RuntimeException(e);}}/*** 发送http请求** @param request* @return*/private static String send(HttpRequest request) {HttpClient client = HttpClient.newHttpClient();try {HttpResponse<String> res = client.send(request, HttpResponse.BodyHandlers.ofString());HttpHeaders headers = res.headers();List<String> cookies = headers.allValues("set-cookie");//获取服务端返回的cookie并设置到全局变量，下一次发起请求使用，有更新则覆盖if (ObjectUtil.isNotEmpty(cookies)) {System.out.println(cookies);StringBuilder cookieValue = new StringBuilder();for (String c : cookies) {cookieValue.append(c);}COOKIE_VALUE = cookieValue.toString();}return res.body();} catch (InterruptedException | IOException e) {throw new RuntimeException(e);}}// public static void main(String[] args) {
// Map<String, String> loginParamMap = new HashMap<>();
// loginParamMap.put("username", "admin");
// //密码admin 密码MD5加密32位
// String password = DigestUtil.md5Hex("admin");
// loginParamMap.put("password", password);
// //String res = HttpUtil.sendGet(WVP_URL + WvpVideoUrlEnums.登录.getUrl(), HttpUtil.asUrlParams(loginParamMap));
// String res = get("http://10.1.7.33:38080" + WvpVideoUrlEnums.登录.getUrl(), loginParamMap);
// System.out.println("登录结果----->" + res);
// }}说明:写这两个工具类的起因是客户端发起请求登录服务端成功后，后续请求需要携带服务端返回的响应头cookie会话信息来鉴权，否则后续请求会报401
这篇关于基于jdk11和基于apache-httpclient的http请求工具类的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
