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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

Mac

接受的答案不适用于Mac，因为Mac (Chrome或Firefox)中没有导出按钮。请检查此答案以下载证书，并按照以下步骤执行:

列出keystore中安装的所有证书:

cd $JAVA_HOME/lib/security
keytool -list -keystore cacerts

注:

密钥库的默认密码为:changeit。 对于Java-8或以下版本，请使用cd $JAVA_HOME/jre/lib/security命令

在将证书导入密钥存储库之前，请备份密钥存储库:

sudo cp cacerts cacerts.bak

将下载的证书导入keystore:

sudo keytool -importcert -alias youralias -file /path/to/the/downloaded/certificate -keystore cacerts

检查证书是否存储在密钥存储库中:

sudo keytool -list -keystore cacerts -alias youralias

如果你想看到更详细的信息，添加-v标志:

sudo keytool -v -list -keystore cacerts -alias youralias
2021-03-31 14:39:13

其他回答

经过半天的努力，又找到了一个解决问题的方法。我能够在MAC 10.15.5 (Catalina)中解决这个问题。遵循以下步骤。

This problem occurs when we are running behind a company proxy , In my case its Zscaler. Open Key chain access, export CA certificate.(Select CA certificate, File->export items and save with the desired name) Copy the path of existing cacerts from java folder(/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre/lib/security/cacerts ) Open terminal and navigate to the Keytool folder (/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre/bin ) Run the below command. Keytool -importcert - file (Path to exported cert from the keychainaccess) -alias (give a name) -keystore (Path of existing cacerts from java folder) sudo Keytool -importcert -file /Users/Desktop/RootCA.cer -alias demo -keystore /Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre/lib/security/cacerts It will ask for password , give it as : changeit It asks for confirmation , Say : yes

完成所有这些步骤后，退出eclipse并启动新的会话。

2020-07-24 13:05:33

在花了好几个小时试图构建证书文件以使我的Java 6安装能够与新的twitter证书一起工作之后，我终于无意中发现了一个隐藏在留言板上的评论中令人难以置信的简单解决方案。只需从Java 7安装中复制cacerts文件，并覆盖Java 6安装中的cacerts文件。可能最好先备份cacerts文件，但随后只需复制新文件，然后嘣!它就是有用。

注意，我实际上复制了一个Windows cacerts文件到Linux安装中，它工作得很好。

该文件位于旧的和新的Java jdk安装中的jre/lib/security/cacerts中。

希望这能帮别人省下几个小时的麻烦。

2014-02-02 05:55:14

这是针对Glassfish服务器的:

通常Glassfish会看着仙人掌。证书文件存放在GLASSFISH_SERVER\glassfish\domains\domain1\config目录下。您可以更改此配置或替换cacerts。JKS文件和cacerts文件。

Glassfish使用了一些默认的JVM选项:

 -XX:+UnlockDiagnosticVMOptions
 -XX:NewRatio=2
 -XX:MaxPermSize=192m
 -Xmx512m
 -client
 -javaagent:C:/glassfish5/glassfish/lib/monitor/flashlight-agent.jar
 -Djavax.xml.accessExternalSchema=all
 -Djavax.net.ssl.trustStore=C:\glassfish5\glassfish\domains\domain1/config/cacerts.jks
 -Djdk.tls.rejectClientInitiatedRenegotiation=true
 -Djdk.corba.allowOutputStreamSubclass=true
2022-06-22 13:50:06

问题是，您的eclipse无法连接实际上它正在尝试连接的站点。 我也遇到过类似的问题，下面给出的解决方案对我来说很有效。

关闭任何第三方互联网安全应用程序，如Zscaler 有时也需要断开VPN如果你是连接的。

谢谢

2021-01-25 09:03:40

我在ubuntu 15.10上也有同样的问题。请尝试在本地下载插件，例如https://github.com/lmenezes/elasticsearch-kopf/archive/master.zip，并使用以下命令安装:

sudo /usr/share/elasticsearch/bin/plugin install file:/home/dev/Downloads/elasticsearch-kopf-master.zip

路径可能不同，取决于你的环境。

的问候。

2016-06-06 19:32:25

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