Java访问SSL地址，免验证证书方式

package com.lenovo.biportal.utils.bitool;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.X509TrustManager;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;

public class SSL {
    final static HostnameVerifier DO_NOT_VERIFY = (hostname, session) -> true;

    public static void httpGet(String path) {
        StringBuffer tempStr = new StringBuffer();
        String responseContent = "";
        HttpURLConnection conn = null;
        try {
            // Create a trust manager that does not validate certificate chains
            trustAllHosts();
            URL url = new URL(path);
            HttpsURLConnection https = (HttpsURLConnection) url.openConnection();
            if (url.getProtocol().toLowerCase().equals("https")) {
                https.setHostnameVerifier(DO_NOT_VERIFY);
                conn = https;
            } else {
                conn = (HttpURLConnection) url.openConnection();
            }
            conn.connect();
            System.out.println("地址:" + path + ", success, result: " + conn.getResponseCode() + " " + conn.getResponseMessage());
            // HttpURLConnection conn = (HttpURLConnection)
            // url.openConnection();

            // conn.setConnectTimeout(5000);
            // conn.setReadTimeout(5000);
            // conn.setDoOutput(true);

            InputStream in = conn.getInputStream();
            conn.setReadTimeout(10 * 1000);
            BufferedReader rd = new BufferedReader(new InputStreamReader(in,
                    "UTF-8"));
            String tempLine;
            while ((tempLine = rd.readLine()) != null) {
                tempStr.append(tempLine);
            }
            responseContent = tempStr.toString();
            System.out.println(responseContent);
            rd.close();
            in.close();
        } catch (Exception e) {
            logger.error("地址:{}, ins error", e);
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }
    }

    /**
     * Trust every server - dont check for any certificate
     */
    public static void trustAllHosts() {

        // Create a trust manager that does not validate certificate chains
        TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {

            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return new java.security.cert.X509Certificate[]{};
            }

            public void checkClientTrusted(X509Certificate[] chain, String authType) {

            }

            public void checkServerTrusted(X509Certificate[] chain, String authType) {

            }
        }};

        // Install the all-trusting trust manager
        // 忽略HTTPS请求的SSL证书，必须在openConnection之前调用
        try {
            SSLContext sc = SSLContext.getInstance("TLS");
            sc.init(null, trustAllCerts, new java.security.SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
        } catch (Exception e) {
            System.out.println("trustAllHosts is error" + e);
        }
    }

}

转载：

https://ningyu1.github.io/site/post/53-ssl-cert-3/