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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

当java应用程序试图与另一个应用程序/站点通信时，如果您在linux容器中看到此问题，这是因为证书已错误地导入到负载均衡器中。导入证书需要遵循一系列步骤，如果操作不正确，您将看到如下问题

Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid 
certification path to requested target

一旦正确地导入了证书，就应该这样做。不需要修补任何JDK证书。

2019-07-03 20:11:18

其他回答

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

如果你的主机位于防火墙/代理之后，在cmd中使用以下命令:

keytool -J-Dhttps.proxyHost=<proxy_hostname> -J-Dhttps.proxyPort=<proxy_port> -printcert -rfc -sslserver <remote_host_name:remote_ssl_port>

将<proxy_hostname>和<proxy_port>替换为已配置的HTTP代理服务器。将<remote_host_name:remote_ssl_port>替换为一个存在认证问题的远程主机(基本上是url)和端口。

将上次打印的证书内容复印一份(同时复印开始证书和结束证书)。将其粘贴到文本文件中，并将扩展名为.crt。现在使用java keytool命令将该证书导入cacerts，它应该可以工作。

keytool -importcert -file <filename>.crt -alias randomaliasname -keystore %JAVA_HOME%/jre/lib/security/cacerts -storepass changeit
2019-05-15 15:16:13

错误

A problem occurred configuring root project 'uy-android-pagos'.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not resolve com.goo  gle.firebase:firebase-crashlytics-gradle:2.1.0.
     Required by:
         project :
      > Could not resolve com.goo  gle.firebase:firebase-crashlytics-gradle:2.1.0.
         > Could not get resource 'https://depdes.artifactory.prod.cloud.ihf/artifactory/itau-oq6-frameworks-maven/com/goo%20%20gle/firebase/firebase-crashlytics-gradle/2.1.0/firebase-crashlytics-gradle-2.1.0.pom'.
            > Could not GET 'https://depdes.artifactory.prod.cloud.ihf/artifactory/itau-oq6-frameworks-maven/com/goo%20%20gle/firebase/firebase-crashlytics-gradle/2.1.0/firebase-crashlytics-gradle-2.1.0.pom'.
               > PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

解决方案

请记住，有许多可能的原因产生这个错误，在我的情况下，我用以下方式修复了它:

用Gradle文件同步项目 检查错误无法解决com。咕gle.firebase: firebase-crashlytics-gradle:魅惑。 结构变化。Gradle (:project) from comGoo gle.firebase:firebase-crashlytic -gradle:2.1.0 to com.google.firebase:firebase-crashlytic -gradle:2.1.0(注意空格)

依赖类路径中的任何错误都会生成这种类型的异常。检查生成问题的提交的gradle。

GL

2022-02-18 20:15:56

我遇到了同样的问题，但更新错误的jre在我的linux机器。tomcat很可能正在使用不同的jre，而您的cli提示符被配置为使用不同的jre。

确保您选择了正确的jre。

步骤# 1:

ps -ef | grep tomcat

你会看到如下内容:

root     29855     1  3 17:54 pts/3    00:00:42 /usr/java/jdk1.7.0_79/jre/bin/java

现在用这个:

keytool -import -alias example -keystore  /usr/java/jdk1.7.0_79/jre/lib/security/cacerts -file cert.cer
PWD: changeit

*。Cer文件可以如下所示生成:(或者您可以使用自己的)

openssl x509 -in cert.pem -outform pem -outform der -out cert.cer
2020-05-21 01:18:20

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

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