?引入jar包

<dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.9</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.5.13</version></dependency>

import org.apache.commons.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.ClientConnectionManager; import org.apache.http.conn.scheme.Scheme; import org.apache.http.conn.scheme.SchemeRegistry; import org.apache.http.conn.ssl.SSLSocketFactory; import org.apache.http.entity.ByteArrayEntity; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair;import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.List; import java.util.Map;public class HttpUtils {/*** get** @param host* @param path* @param method* @param headers* @param querys* @return* @throws Exception*/public static HttpResponse doGet(String host, String path, String method,Map<String, String> headers,Map<String, String> querys)throws Exception {HttpClient httpClient = wrapClient(host);HttpGet request = new HttpGet(buildUrl(host, path, querys));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 method* @param headers* @param querys* @param bodys* @return* @throws Exception*/public static HttpResponse doPost(String host, String path, String method,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));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 method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,String body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));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 method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,byte[] body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));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 method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPut(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,String body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPut request = new HttpPut(buildUrl(host, path, querys));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 method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPut(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,byte[] body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPut request = new HttpPut(buildUrl(host, path, querys));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 method* @param headers* @param querys* @return* @throws Exception*/public static HttpResponse doDelete(String host, String path, String method,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) {HttpClient httpClient = new DefaultHttpClient();if (host.startsWith("https://")) {sslClient(httpClient);}return httpClient;}private static void sslClient(HttpClient httpClient) {try {SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager tm = new X509TrustManager() {public X509Certificate[] getAcceptedIssuers() {return null;}public void checkClientTrusted(X509Certificate[] xcs, String str) {}public void checkServerTrusted(X509Certificate[] xcs, String str) {}};ctx.init(null, new TrustManager[] { tm }, null);SSLSocketFactory ssf = new SSLSocketFactory(ctx);ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);ClientConnectionManager ccm = httpClient.getConnectionManager();SchemeRegistry registry = ccm.getSchemeRegistry();registry.register(new Scheme("https", 443, ssf));} catch (KeyManagementException ex) {throw new RuntimeException(ex);} catch (NoSuchAlgorithmException ex) {throw new RuntimeException(ex);}}}

測(cè)試

@Testpublic void aaa(){//請(qǐng)求的域名String host = "https://staging.xxx.com";//請(qǐng)求域名后的 uri接口地址String path = "/users/login";//請(qǐng)求方式String method = "POST";Map<String, String> headers = new HashMap<String, String>();// 設(shè)置請(qǐng)求頭信息headers.put("Content-Type", "application/json");headers.put("ESBDate", "xxxxxx");Map<String, String> querys = new HashMap<String, String>();// 設(shè)置請(qǐng)求參數(shù)信息querys.put("userName", "法外狂徒");querys.put("password", "123456");// querys.put("BusiTokenCode", "Bearer 126ec2ea-ae8f-49ea-bdf1-e9f4072209f1");try {/*** 重要提示如下:* HttpUtils請(qǐng)從* https://github.com/aliyun/api-gateway-demo-sign-java/blob/master/src/main/java/com/aliyun/api/gateway/demo/util/HttpUtils.java* 下載** 相應(yīng)的依賴請(qǐng)參照* https://github.com/aliyun/api-gateway-demo-sign-java/blob/master/pom.xml*/HttpResponse response = HttpUtils.doGet(host, path, method, headers, querys);System.out.println(response.toString());String res = EntityUtils.toString(response.getEntity());JSONObject res_obj = JSON.parseObject(res);String a = res_obj.toJSONString();System.out.println(a);//獲取response的bodySystem.out.println(EntityUtils.toString(response.getEntity()));} catch (Exception e) { // return e.toString();}

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