“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

问题背景:

当我试图在我的项目中运行mvn清洁安装并通过Netbeans IDE清洁和构建选项时，我得到了以下错误。此问题是由于通过NET beans IDE/通过命令提示符下载时证书不可用，但可以通过浏览器下载文件。

错误:

Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact com.java.project:product:jar:1.0.32 from/to repo-local (https://url/local-repo): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

解决方法:

1. 下载有关网址的证书:

Launch IE by "run as adminstrator" (otherwise, we will not be able to download the certificate) Enter the url in IE-> https://url/local-repo (In my case this url had a untrusted certificate.) Download the certificate by clicking on Certificate error -> view certificate Select Details tab -> copy to file -> next -> select "DER encoded binary X.509 (.CER) save the certificate in some location, example : c:/user/sheldon/desktop/product.cer Congrats! you have successfully downloaded the certificate for the site

2. 现在安装密钥存储库以修复该问题。

运行keytool命令将下载的密钥存储库附加到已存在的证书文件。命令:jdk (JAVA_HOME) bin文件夹下的如下命令。

C:\Program Files\Java\ jdk1.8.0_141\jre\bin>keytool -importcert -file .使用实例 “C: / user /谢耳朵/桌面/产品。-alias product -keystore “C: /程序文件/ Java / jdk1.8.0_141 / jre / lib /安全/除”。

系统将提示您输入密码。输入keystore密码: 再次输入“changeit”，输入“信任此证书?”(没有):“,输入 “是的”

示例命令行命令/输出:

keytool -importcert -file "C:/Users/sheldon/Desktop/product.cer" -alias product -keystore "C:/Program iles/Java/jdk1.8.0_141/jre/lib/security/cacerts"
Enter keystore password:
Trust this certificate? [no]:  yes
Certificate was added to keystore

Contgrats !现在你应该删除“PKIX路径构建失败:sun.security.provider.certpath”。在Netbeans IDE中出现SunCertPathBuilderException错误。

2017-11-29 09:01:28

其他回答

1. 检查证书

尝试在浏览器中加载目标URL并查看网站的证书(通常可以通过带有锁标志的图标访问)。它在浏览器地址栏的左边或右边)，无论它是否过期或由于其他原因不受信任。

2. 安装最新版本的JRE和JDK

新版本通常附带一组更新后的受信任证书。

如果可能的话，卸载旧版本。这将使错误配置错误显式地出现。

3.检查您的配置:

检查JAVA_HOME环境变量指向的位置。检查您使用哪个java版本来运行程序。在IntelliJ中检查: 文件->项目结构…—>项目设置—>项目—>项目SDK: 文件->项目结构…—>平台设置—>个sdk

4. 从新的Java版本复制整个密钥存储库

如果您使用的JDK不是最新可用的JDK，请尝试将%JAVA_HOME%/jre/lib/security/cacerts文件替换为最新安装的jre中的新文件(先做备份)，正如@jeremy-goodell在他的回答中建议的那样

5. 向您的密钥存储库中添加证书

如果以上都不能解决您的问题，请使用keytool将证书保存到Java的密钥存储库:

keytool -trustcacerts -keystore "%JAVA_HOME%jre\lib\security\cacerts" -storepass changeit -importcert -alias <alias_name> -file <path_to_crt_file>

正如@MagGGG在他的回答中建议的那样，可以从浏览器中获得带有证书的文件。

注1:您可能需要对链中的每个证书重复此操作，直到站点的证书。从根根开始。

注意2:<alias_name>在存储中的键中应该是唯一的，否则keytool将显示错误。

要获取存储中所有证书的列表，您可以运行:

keytool -list -trustcacerts -keystore "%JAVA_HOME%jre\lib\security\cacerts" -storepass changeit

如果出现问题，这将帮助您从存储中删除证书:

keytool -delete -alias <alias_name> -keystore "%JAVA_HOME%jre\lib\security\cacerts" -storepass changeit

2017-09-13 11:10:26

解决这个异常的简单步骤，(我在java 11上做的)，

First you need to Download the public SSL certificate file of the target domain that you are trying to call,for that Open the target domain website in the chrome (Example: https://amazonservice.domain.com) Click on the small lock icon before the URL in the browser Click View certificates Now Click on Certificate is valid as shown below Now a new Popup will open as shown below, Open the details tab Select the RootCert at the top Click Export and save the .cer file to your system in a directory

现在您有了目标域的公共密钥存储库，您正在尝试在java应用程序中调用该密钥存储库，现在我们需要将该密钥存储库导入您的jre，为此转到$JAVA_HOME/bin目录并运行以下命令

./keytool -importcert -alias someAliasName -keystore {JAVA_HOME}/lib/security/cacerts -file {PathToDownloads}/certificateFileName.cer

它会要求您输入密码，如果您知道，请输入密码，证书的默认密码是changeit

参考文献

https://confluence.atlassian.com/kb/how-to-import-a-public-ssl-certificate-into-a-jvm-867025849.html https://confluence.atlassian.com/kb/unable-to-connect-to-ssl-services-due-to-pkix-path-building-failed-error-779355358.html

2022-11-28 18:36:17

在这里，这种异常通常发生在受信任证书的PATH不匹配时。检查用于安全通信的服务器证书所需的配置或路径。

2014-01-12 19:32:53

如果您正在使用CloudFoundry并遇到证书问题，那么您必须确保再次使用包含证书的keystore-service来推动jar。简单地解绑定、绑定和重新启动是行不通的。

2019-03-05 22:39:39

如果您在Spring Tools Suite或Eclipse等IDE中遇到此错误，请首先尝试使用URL的HTTP版本而不是HTTPS版本。

当我试图将SonarQube链接添加到Spring Tools Suite时，我遇到了这个错误。我将我的URL替换为: