java 服务证书问题-生成jssecacerts CA证书

java服务报错日志

2023-11-14 11:14:53.590 ERROR 20224 --- [nio-8768-exec-4] org.jasig.cas.client.util.CommonUtils    : SSL error getting response from host: rancher.cn : Error Message: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
 
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1937)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1478)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:212)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:957)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:892)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1050)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1363)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1391)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1375)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563)
    at 
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linux 命令行报错

[root@training-cpu-01 ~]# curl https://rancher.cn/20220801/59e58a915af04ee1a64e7857cc7238f5.txt
curl: (60) Peer's Certificate issuer is not recognized.
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.
[root@training-cpu-01 ~]# 
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解决方法
新建InstallCert.java文件

/* 
 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 
 *   - Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer. 
 * 
 *   - Redistributions in binary form must reproduce the above copyright 
 *     notice, this list of conditions and the following disclaimer in the 
 *     documentation and/or other materials provided with the distribution. 
 * 
 *   - Neither the name of Sun Microsystems nor the names of its 
 *     contributors may be used to endorse or promote products derived 
 *     from this software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */  
  
import java.io.BufferedReader;  
import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileOutputStream;  
import java.io.InputStream;  
import java.io.InputStreamReader;  
import java.io.OutputStream;  
import java.security.KeyStore;  
import java.security.MessageDigest;  
import java.security.cert.CertificateException;  
import java.security.cert.X509Certificate;  
  
import javax.net.ssl.SSLContext;  
import javax.net.ssl.SSLException;  
import javax.net.ssl.SSLSocket;  
import javax.net.ssl.SSLSocketFactory;  
import javax.net.ssl.TrustManager;  
import javax.net.ssl.TrustManagerFactory;  
import javax.net.ssl.X509TrustManager;  
  
public class InstallCert {  
  
    public static void main(String[] args) throws Exception {  
        String host;  
        int port;  
        char[] passphrase;  
        if ((args.length == 1) || (args.length == 2)) {  
            String[] c = args[0].split(":");  
            host = c[0];  
            port = (c.length == 1) ? 443 : Integer.parseInt(c[1]);  
            String p = (args.length == 1) ? "changeit" : args[1];  
            passphrase = p.toCharArray();  
        } else {  
            System.out  
                    .println("Usage: java InstallCert <host>[:port] [passphrase]");  
            return;  
        }  
  
        File file = new File("jssecacerts");  
        if (file.isFile() == false) {  
            char SEP = File.separatorChar;  
            File dir = new File(System.getProperty("java.home") + SEP + "lib"  
                    + SEP + "security");  
            file = new File(dir, "jssecacerts");  
            if (file.isFile() == false) {  
                file = new File(dir, "cacerts");  
            }  
        }  
        System.out.println("Loading KeyStore " + file + "...");  
        InputStream in = new FileInputStream(file);  
        KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());  
        ks.load(in, passphrase);  
        in.close();  
  
        SSLContext context = SSLContext.getInstance("TLS");  
        TrustManagerFactory tmf = TrustManagerFactory  
                .getInstance(TrustManagerFactory.getDefaultAlgorithm());  
        tmf.init(ks);  
        X509TrustManager defaultTrustManager = (X509TrustManager) tmf  
                .getTrustManagers()[0];  
        SavingTrustManager tm = new SavingTrustManager(defaultTrustManager);  
        context.init(null, new TrustManager[] { tm }, null);  
        SSLSocketFactory factory = context.getSocketFactory();  
  
        System.out  
                .println("Opening connection to " + host + ":" + port + "...");  
        SSLSocket socket = (SSLSocket) factory.createSocket(host, port);  
        socket.setSoTimeout(10000);  
        try {  
            System.out.println("Starting SSL handshake...");  
            socket.startHandshake();  
            socket.close();  
            System.out.println();  
            System.out.println("No errors, certificate is already trusted");  
        } catch (SSLException e) {  
            System.out.println();  
            e.printStackTrace(System.out);  
        }  
  
        X509Certificate[] chain = tm.chain;  
        if (chain == null) {  
            System.out.println("Could not obtain server certificate chain");  
            return;  
        }  
  
        BufferedReader reader = new BufferedReader(new InputStreamReader(  
                System.in));  
  
        System.out.println();  
        System.out.println("Server sent " + chain.length + " certificate(s):");  
        System.out.println();  
        MessageDigest sha1 = MessageDigest.getInstance("SHA1");  
        MessageDigest md5 = MessageDigest.getInstance("MD5");  
        for (int i = 0; i < chain.length; i++) {  
            X509Certificate cert = chain[i];  
            System.out.println(" " + (i + 1) + " Subject "  
                    + cert.getSubjectDN());  
            System.out.println("   Issuer  " + cert.getIssuerDN());  
            sha1.update(cert.getEncoded());  
            System.out.println("   sha1    " + toHexString(sha1.digest()));  
            md5.update(cert.getEncoded());  
            System.out.println("   md5     " + toHexString(md5.digest()));  
            System.out.println();  
        }  
  
        System.out  
                .println("Enter certificate to add to trusted keystore or 'q' to quit: [1]");  
        String line = reader.readLine().trim();  
        int k;  
        try {  
            k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1;  
        } catch (NumberFormatException e) {  
            System.out.println("KeyStore not changed");  
            return;  
        }  
  
        X509Certificate cert = chain[k];  
        String alias = host + "-" + (k + 1);  
        ks.setCertificateEntry(alias, cert);  
  
        OutputStream out = new FileOutputStream("jssecacerts");  
        ks.store(out, passphrase);  
        out.close();  
  
        System.out.println();  
        System.out.println(cert);  
        System.out.println();  
        System.out  
                .println("Added certificate to keystore 'jssecacerts' using alias '"  
                        + alias + "'");  
    }  
  
    private static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();  
  
    private static String toHexString(byte[] bytes) {  
        StringBuilder sb = new StringBuilder(bytes.length * 3);  
        for (int b : bytes) {  
            b &= 0xff;  
            sb.append(HEXDIGITS[b >> 4]);  
            sb.append(HEXDIGITS[b & 15]);  
            sb.append(' ');  
        }  
        return sb.toString();  
    }  
  
    private static class SavingTrustManager implements X509TrustManager {  
  
        private final X509TrustManager tm;  
        private X509Certificate[] chain;  
  
        SavingTrustManager(X509TrustManager tm) {  
            this.tm = tm;  
        }  
  
        public X509Certificate[] getAcceptedIssuers() {  
            throw new UnsupportedOperationException();  
        }  
  
        public void checkClientTrusted(X509Certificate[] chain, String authType)  
                throws CertificateException {  
            throw new UnsupportedOperationException();  
        }  
  
        public void checkServerTrusted(X509Certificate[] chain, String authType)  
                throws CertificateException {  
            this.chain = chain;  
            tm.checkServerTrusted(chain, authType);  
        }  
    }  
  
}
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编译并运行

javac InstallCert.java
java InstallCert rancher.cn ## 执行的时候需要输入1
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执行成功以后在当前的目下生成 jssecacerts 文件

拷贝证书
拷贝证书文件jssecacerts到Java安装路径\jre\lib\security下并重启服务