java用HttpURLConnection发起HTTPS请求并跳过SSL证书，解决：unable to find valid certification path to requested targ
2024-05-20 10:51:52
java用HttpURLConnection发起HTTPS请求并跳过SSL证书
问题出现：unable to find valid certification path to requested target
解决办法：
复制 复制 复制 下面方法
- 重点关注方法，任何类都可以Copy过去，两个东西是忽略本类的所有SSL
注意点
代码块如下：
public class HttpsUtils {private static final Logger log = LoggerFactory.getLogger(HttpsUtils.class);//调用该类直接跳过ssl证书 TODOstatic {try {trustAllHttpsCertificates();HttpsURLConnection.setDefaultHostnameVerifier((urlHostName, session) -> true);} catch (Exception e) {}}/*** 向指定 URL 发送POST方法的请求** @param url 发送请求的 URL* @param param 请求参数* @return 所代表远程资源的响应结果*/public static Map<String, Object> sendPostWithStatus(String url, String param) {Map<String, Object> map = new HashMap<>();PrintWriter out = null;String status = null;BufferedReader in = null;StringBuilder result = new StringBuilder();try {String urlNameString = url;log.info("sendPost - {}", urlNameString);URL realUrl = new URL(urlNameString);// 打开连接HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();// 默认是 GET方式conn.setRequestMethod("POST");// 设置是否向connection输出，因为这个是post请求，参数要放在http正文内，因此需要设为trueconn.setDoOutput(true);conn.setDoInput(true);// Post 请求不能使用缓存conn.setUseCaches(false);conn.setInstanceFollowRedirects(true);// 配置本次连接的Content-type，参数类型为jsonconn.setRequestProperty("Content-Type", "application/json");// 通用请求头信息conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");conn.setRequestProperty("Accept-Charset", "utf-8");conn.setRequestProperty("contentType", "utf-8");out = new PrintWriter(conn.getOutputStream());//请求参数out.print(param);out.flush();//获取响应的状态码 请求成功为200status = new Integer(((HttpURLConnection) conn).getResponseCode()).toString();in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));String line;//获取响应内容while ((line = in.readLine()) != null) {result.append(line);}log.info("recv - {}", result);} catch (ConnectException e) {log.error("调用HttpUtils.sendPostWithStatus ConnectException, url=" + url + ",param=" + param, e);} catch (SocketTimeoutException e) {log.error("调用HttpUtils.sendPostWithStatus SocketTimeoutException, url=" + url + ",param=" + param, e);} catch (IOException e) {log.error("调用HttpUtils.sendPostWithStatus IOException, url=" + url + ",param=" + param, e);} catch (Exception e) {log.error("调用HttpsUtil.sendPostWithStatus Exception, url=" + url + ",param=" + param, e);} finally {try {if (out != null) {out.close();}if (in != null) {in.close();}} catch (IOException ex) {log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);}}map.put("status", status);map.put("result", result);return map;}/*** 跳过ssl证书** @throws NoSuchAlgorithmException* @throws KeyManagementException*/private static void trustAllHttpsCertificates() throws NoSuchAlgorithmException, KeyManagementException {TrustManager[] trustAllCerts = new TrustManager[1];trustAllCerts[0] = (TrustManager) new TrustAllManager();SSLContext sc = SSLContext.getInstance("SSL");sc.init(null, trustAllCerts, null);HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());}private static class TrustAllManager implements X509TrustManager {public X509Certificate[] getAcceptedIssuers() {return null;}public void checkServerTrusted(X509Certificate[] certs, String authType) {}public void checkClientTrusted(X509Certificate[] certs, String authType) {}}
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