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2023-05-19 07:00:09

“PKIX路径构建失败”和“无法找到请求目标的有效认证路径”

我试图使用twitter4j库为我的java项目获得推文，它在封面下使用java.net.HttpURLConnection(可以在堆栈跟踪中看到)。在我第一次运行时，我得到了一个关于证书sun.security.validator.ValidatorException和sun.security.provider.certpath.SunCertPathBuilderException的错误。然后我添加了twitter证书:

C:\Program Files\Java\jdk1.7.0_45\jre\lib\security>keytool -importcert -trustcacerts -file PathToCert -alias ca_alias -keystore "C:\Program Files\Java\jdk1.7.0_45\jre\lib\security\cacerts"

但是没有成功。以下是获取推文的流程:

public static void main(String[] args) throws TwitterException {
    ConfigurationBuilder cb = new ConfigurationBuilder();
    cb.setDebugEnabled(true)
        .setOAuthConsumerKey("myConsumerKey")
        .setOAuthConsumerSecret("myConsumerSecret")
        .setOAuthAccessToken("myAccessToken")
        .setOAuthAccessTokenSecret("myAccessTokenSecret");
    
    TwitterFactory tf = new TwitterFactory(cb.build());
    Twitter twitter = tf.getInstance();
    
    try {
        Query query = new Query("iphone");
        QueryResult result;
        result = twitter.search(query);
        System.out.println("Total amount of tweets: " + result.getTweets().size());
        List<Status> tweets = result.getTweets();
        
        for (Status tweet : tweets) {
            System.out.println("@" + tweet.getUser().getScreenName() + " : " + tweet.getText());
        }
    } catch (TwitterException te) {
        te.printStackTrace();
        System.out.println("Failed to search tweets: " + te.getMessage());
    }

这里是错误:

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Relevant discussions can be found on the Internet at:
    http://www.google.co.jp/search?q=d35baff5 or
    http://www.google.co.jp/search?q=1446302e
TwitterException{exceptionCode=[d35baff5-1446302e 43208640-747fd158 43208640-747fd158 43208640-747fd158], statusCode=-1, message=null, code=-1, retryAfter=-1, rateLimitStatus=null, version=3.0.5}
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:177)
    at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:61)
    at twitter4j.internal.http.HttpClientWrapper.get(HttpClientWrapper.java:81)
    at twitter4j.TwitterImpl.get(TwitterImpl.java:1929)
    at twitter4j.TwitterImpl.search(TwitterImpl.java:306)
    at jku.cc.servlets.TweetsAnalyzer.main(TweetsAnalyzer.java:38)
Caused by: 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(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
    at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
    at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
    at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
    at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
    at sun.security.ssl.Handshaker.processLoop(Unknown Source)
    at sun.security.ssl.Handshaker.process_record(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at twitter4j.internal.http.HttpResponseImpl.<init>(HttpResponseImpl.java:34)
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:141)
    ... 5 more
Caused by: 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.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 20 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 26 more
Failed to search tweets: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

当前回答

我也遇到了同样的问题，我使用的是8.1.0-3，但后来我使用了9.2.1-0，这个问题在没有任何手动步骤的情况下得到了修复。自签名证书工作正常。

2020-03-12 06:36:57

其他回答

我想为smtp.gmail.com导入证书。对我来说唯一有效的办法就是

输入命令查看该证书 D:\openssl\bin\openssl.exe s_client连接smtp.gmail.com:465 将-----BEGIN CERTIFICATE-----和-----END CERTIFICATE-----之间的行复制并保存到一个文件gmail.cer中 运行 keytool -import -alias smtp.gmail.com -keystore "%JAVA_HOME%/jre/lib/security/cacerts" -file C:\Users\Admin\Desktop\gmail.cer 输入密码:changeit 单击“是”，导入证书 重新启动Java

现在运行命令，就可以开始了。

2017-01-23 04:53:04

我的UI方法:

从这里下载密钥库资源管理器 打开$ JAVA_HOME / jre / lib /安全/除 输入PW: changeit(可以在Mac上changeme) 导入.crt文件

CMD-Line:

Keytool -importcert -file jetty。crt -alias jetty -keystore $JAVA_HOME/jre/lib/security/cacerts . crt -alias jetty -keystore $JAVA_HOME/jre/lib/security/cacerts . crt 输入PW: changeit(可以在Mac上changeme)

2016-11-22 14:06:23

如果您的存储库URL也可以在HTTP上工作，并且安全性不是问题，您可以访问settings.xml(通常，但不总是，位于%USERPROFILE%/.m2)，并将<repository>和<pluginRepository> URL的HTTPS替换为HTTP。

例如，这个:

<repository>
    <snapshots>
        <enabled>false</enabled>
    </snapshots>
    <id>central</id>
    <name>libs-release</name>
    <url>https://<artifactory>/libs-release</url>
</repository>

应改为:

<repository>
    <snapshots>
        <enabled>false</enabled>
    </snapshots>
    <id>central</id>
    <name>libs-release</name>
    <url>https://<artifactory>/libs-release</url>
</repository>
2018-11-14 08:23:36

我的情况略有不同，当时我的系统上同时存在JDK和JRE 1.8.0_112。

我导入新的CA证书到[JDK_FOLDER]\jre\lib\security\cacerts使用已知的命令:

keytool -import -trustcacerts -keystore cacerts -alias <new_ca_alias> -file <path_to_ca_cert_file>

尽管如此，我仍然得到相同的PKIX路径构建失败错误。

我在java命令行中添加了调试信息，使用java -Djavax.net.debug=all…> debug.log。在debug.log文件中，以trustStore开头的行实际上指向[JRE_FOLDER]\lib\security\cacerts中找到的cacerts存储。

在我的案例中，解决方案是将JDK使用的cacerts文件(添加了新的ca)复制到JRE使用的cacerts文件上，这样就解决了问题。

2016-12-21 09:19:13

I solved this issue on Windows Server 2016 with Java 8, by importing cert from pkcs12 store to cacerts keystore. Path to pkcs12 store: C:\Apps\pkcs12.pfx Path to Java cacerts: C:\Program Files\Java\jre1.8.0_151\lib\security\cacerts Path to keytool: C:\Program Files\Java\jre1.8.0_151\bin After possitioning to folder with keytool in command prompt (as administrator), command to import cert from pkcs12 to cacerts is as follows: keytool -v -importkeystore -srckeystore C:\Apps\pkcs12.pfx -srcstoretype PKCS12 -destkeystore "C:\Program Files\Java\jre1.8.0_151\lib\security\cacerts" -deststoretype JKS You will be prompted to: 1. enter destination keystore password (cacerts pasword, default is "changeit") 2. enter source keystore password (pkcs12 password)

要使更改生效，请重新启动服务器机器(或只需重新启动JVM)。

2019-12-18 15:05:44

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