100字范文 > HTTP请求工具类支持https

HTTP请求工具类支持https

时间：2022-11-12 12:33:24

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HTTP请求工具类支持https

前言

有时候后台需要请求其他的API来获取数据，springboot可以使用RestTemplate，但是在工具类里使用就有点麻烦了。所以就自定义一个http请求的工具类，来处理GET、POST、PUT、DELETE等请求。

一、自定义工具类

import java.io.UnsupportedEncodingException;import .URLEncoder;import java.security.KeyManagementException;import java.security.KeyStoreException;import java.security.NoSuchAlgorithmException;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.List;import java.util.Map;import .ssl.SSLContext;import mons.lang3.StringUtils;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.HttpDelete;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.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.entity.ByteArrayEntity;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClientBuilder;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.ssl.SSLContextBuilder;import org.apache.http.ssl.TrustStrategy;public class HttpUtils {/*** get* * @param host* @param path* @param headers* @param querys* @return* @throws Exception*/public static HttpResponse doGet(String host, String path, Map<String, String> headers, Map<String, String> querys)throws Exception { HttpClient httpClient = wrapClient(host);HttpGet request = new HttpGet(buildUrl(host, path, querys));if (headers != null) {for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}}return httpClient.execute(request);}/*** post form* * @param host* @param path* @param headers* @param querys* @param bodys* @return* @throws Exception*/public static HttpResponse doPost(String host, String path,Map<String, String> headers, Map<String, String> querys, Map<String, String> bodys)throws Exception { HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));if (headers != null) {for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}}if (bodys != null) {List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();for (String key : bodys.keySet()) {nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));}UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");request.setEntity(formEntity);}return httpClient.execute(request);}/*** Post String* * @param host* @param path* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPost(String host, String path,Map<String, String> headers, Map<String, String> querys, String body)throws Exception { HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));if (headers != null) {for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}}if (StringUtils.isNotBlank(body)) {request.setEntity(new StringEntity(body, "utf-8"));}return httpClient.execute(request);}/*** Post stream* * @param host* @param path* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPost(String host, String path,Map<String, String> headers, Map<String, String> querys, byte[] body)throws Exception { HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));if (headers != null) {for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}}if (body != null) {request.setEntity(new ByteArrayEntity(body));}return httpClient.execute(request);}/*** Put String* @param host* @param path* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPut(String host, String path,Map<String, String> headers, Map<String, String> querys, String body)throws Exception { HttpClient httpClient = wrapClient(host);HttpPut request = new HttpPut(buildUrl(host, path, querys));if (headers != null) {for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}}if (StringUtils.isNotBlank(body)) {request.setEntity(new StringEntity(body, "utf-8"));}return httpClient.execute(request);}/*** Put stream* @param host* @param path* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPut(String host, String path,Map<String, String> headers, Map<String, String> querys, byte[] body)throws Exception { HttpClient httpClient = wrapClient(host);HttpPut request = new HttpPut(buildUrl(host, path, querys));if (headers != null) {for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}}if (body != null) {request.setEntity(new ByteArrayEntity(body));}return httpClient.execute(request);}/*** Delete* * @param host* @param path* @param headers* @param querys* @return* @throws Exception*/public static HttpResponse doDelete(String host, String path,Map<String, String> headers, Map<String, String> querys)throws Exception { HttpClient httpClient = wrapClient(host);HttpDelete request = new HttpDelete(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}return httpClient.execute(request);}private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {StringBuilder sbUrl = new StringBuilder();sbUrl.append(host);if (!StringUtils.isBlank(path)) {sbUrl.append(path);}if (null != querys) {StringBuilder sbQuery = new StringBuilder();for (Map.Entry<String, String> query : querys.entrySet()) {if (0 < sbQuery.length()) {sbQuery.append("&");}if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {sbQuery.append(query.getValue());}if (!StringUtils.isBlank(query.getKey())) {sbQuery.append(query.getKey());if (!StringUtils.isBlank(query.getValue())) {sbQuery.append("=");sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));} }}if (0 < sbQuery.length()) {sbUrl.append("?").append(sbQuery);}}return sbUrl.toString();}private static HttpClient wrapClient(String host) {CloseableHttpClient httpClient = HttpClientBuilder.create().build();//HttpClient httpClient = new DefaultHttpClient();if (host.startsWith("https://")) {return createSSLClient(httpClient);}return httpClient;}private static HttpClient createSSLClient(HttpClient httpClient){try {SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {// 信任所有public boolean isTrusted(X509Certificate[] chain,String authType) throws CertificateException {return true;}}).build();SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext);return HttpClients.custom().setSSLSocketFactory(sslsf).build();} catch (KeyManagementException e) {e.printStackTrace();} catch (NoSuchAlgorithmException e) {e.printStackTrace();} catch (KeyStoreException e) {e.printStackTrace();}return HttpClients.createDefault();}}

二、使用

使用起来也很简单，直接调用对应的方法就可以了，host是域名，path是对应的路径。

HttpResponse response = HttpUtils.doGet("https://waynelee.work", "/blog",null, null);String res = EntityUtils.toString(response.getEntity());System.out.println(res);

得到HttpResponse类可以用EntityUtils转为String或者其他类型。