- android - 多次调用 OnPrimaryClipChangedListener
- android - 无法更新 RecyclerView 中的 TextView 字段
- android.database.CursorIndexOutOfBoundsException : Index 0 requested, 光标大小为 0
- android - 使用 AppCompat 时,我们是否需要明确指定其 UI 组件(Spinner、EditText)颜色
我写了一个 java 客户端通过 ssl 连接到 Ldap。我将 CA 证书导入到我的 java keystore 中,我能够通过 ssl 连接 Ldap 并提取信息。问题是它并不总是有效。通常它会抛出:CommunicationException:sun.security.validator.ValidatorException: PKIX path building failed。如果我再次运行(不做任何更改)它会起作用。
这个问题困扰了我好几天,作为解决方法,我正在捕获此异常并重试。但我正在寻找永久修复。任何帮助将不胜感激。
下面是我获取上下文的代码:
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL, securityPrincipal);
env.put(Context.PROVIDER_URL, url);
env.put(Context.SECURITY_CREDENTIALS, securityCredential);
env.put("java.naming.provider.url", url);
return new InitialLdapContext(env, null);
轨迹轨迹:
javax.naming.CommunicationException: simple bind failed: adapps.nms.comm:636 [Root exception is 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 com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:215)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2685)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:306)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:211)
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:305)
at javax.naming.InitialContext.init(InitialContext.java:240)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:151)
at NMSLdapServiceDAOImpl.getLdapContext(NMSLdapServiceDAOImpl.java:149)
at NMSLdapServiceDAOImpl.getUserByNTID(NMSLdapServiceDAOImpl.java:97)
at NMSLdapServiceDAOImpl.main(NMSLdapServiceDAOImpl.java:287)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
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(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1682)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:257)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:251)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1168)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:609)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:545)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:930)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1175)
at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:805)
at sun.security.ssl.AppInputStream.read(AppInputStream.java:94)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:275)
at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
at com.sun.jndi.ldap.Connection.run(Connection.java:820)
at java.lang.Thread.run(Thread.java:679)
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(PKIXValidator.java:324)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:224)
at sun.security.validator.Validator.validate(Validator.java:235)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:147)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:230)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:270)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1147)
... 12 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:197)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:255)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:319)
... 18 more
CommunicationException:sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
javax.naming.CommunicationException: simple bind failed: adapps.nms.com:636 [Root exception is 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 com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:215)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2685)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:306)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:211)
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:305)
at javax.naming.InitialContext.init(InitialContext.java:240)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:151)
at NMSLdapServiceDAOImpl.getLdapContext(NMSLdapServiceDAOImpl.java:149)
at NMSLdapServiceDAOImpl.getUserByNTID(NMSLdapServiceDAOImpl.java:97)
at NMSLdapServiceDAOImpl.getUserByNTID(NMSLdapServiceDAOImpl.java:109)
at NMSLdapServiceDAOImpl.main(NMSLdapServiceDAOImpl.java:287)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
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(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1682)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:257)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:251)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1168)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:609)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:545)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:930)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1175)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:657)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:108)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:409)
at com.sun.jndi.ldap.LdapClient.ldapBind(LdapClient.java:352)
at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:210)
... 19 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(PKIXValidator.java:324)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:224)
at sun.security.validator.Validator.validate(Validator.java:235)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:147)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:230)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:270)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1147)
... 31 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:197)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:255)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:319)
... 37 more
CommunicationException:sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
javax.naming.CommunicationException: simple bind failed: adapps.nms.com:636 [Root exception is 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 com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:215)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2685)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:306)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:211)
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:305)
at javax.naming.InitialContext.init(InitialContext.java:240)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:151)
at NMSLdapServiceDAOImpl.getLdapContext(NMSLdapServiceDAOImpl.java:149)
at NMSLdapServiceDAOImpl.getUserByNTID(NMSLdapServiceDAOImpl.java:97)
at NMSLdapServiceDAOImpl.getUserByNTID(NMSLdapServiceDAOImpl.java:109)
at NMSLdapServiceDAOImpl.getUserByNTID(NMSLdapServiceDAOImpl.java:109)
at NMSLdapServiceDAOImpl.main(NMSLdapServiceDAOImpl.java:287)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
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(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1682)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:257)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:251)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1168)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:609)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:545)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:930)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1175)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:657)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:108)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:409)
at com.sun.jndi.ldap.LdapClient.ldapBind(LdapClient.java:352)
at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:210)
... 20 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(PKIXValidator.java:324)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:224)
at sun.security.validator.Validator.validate(Validator.java:235)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:147)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:230)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:270)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1147)
... 32 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:197)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:255)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:319)
... 38 more
最佳答案
您应该将服务器的证书:端口导入到 java JRE keystore ,例如以下服务器和端口:
serverAddress: myserver.mydomain.com
serverPort: 443
keystore password is default: changeit
首先,在继续之前检查 $JAVA_HOME 和 java 可执行文件,如果您有不同的 JAVA_HOME,您应该确保选择正确的 JAVA_HOME 进行导入:
$ ~/bin$ echo $JAVA_HOME
/opt/jdk
$ ~/bin$ which java
/usr/bin/java
$ ~/bin$ ls -l /usr/bin/java
lrwxrwxrwx 1 root root 22 May 10 2014 /usr/bin/java -> /etc/alternatives/java
$ ~/bin$ ls -l /etc/alternatives/java
lrwxrwxrwx 1 root root 17 Jun 6 2014 /etc/alternatives/java -> /opt/jdk/bin/java
$ ~/bin$ java -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
$ ~/bin$ `which java` -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
$ ~/bin$ $JAVA_HOME/bin/java -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
从服务器提取证书:
$ openssl s_client -connect <serverAddress:serverPort> 2>&1 < "/" | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /tmp/myserver.crt
对于这个例子<serverAddress:serverPort>
应替换为 myserver.mydomain.com:443
提取的文件应该如下所示:
$ cat /tmp/myserver.crt
-----BEGIN CERTIFICATE-----
blahblahblahaC5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCd
ME22AKpyBPIRbTwTBedJz/KFtwCAxO2jXIcIob99LXv8W4KMOJgazn2UUBm/azZ1
z+9qhq3UeIy8Z58WK2N5l/SI7s3+bkii/dnpW3Akw8OyXABnN1EyfwnL607POqXm
blahblahblah
...Certificate Data is variable for each server address...
blahblahblah
blahblahblahT9p1jar2vxoHv3/dSwKoeLL8XpkmVx9oVUZ3XuICPvEmu8eBfOEm
ZXNlYXJjaC5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCd4I7L
ME22AKpyBPIRbTwTBedJz/KFtwCAxO2jXIcIob99LXv8W4KMOJgazn2UUBm/azZ1
-----END CERTIFICATE-----
您需要将提取的证书导入 JRE keystore :
$ keytool -import -alias myserverCert -file /tmp/myserver.crt -keystore $JAVA_HOME/jre/lib/security/cacerts
您可以在导入后检查 java JRE keystore 中是否存在证书:
$ keytool -list -keystore $JAVA_HOME/jre/lib/security/cacerts
java JRE keystore 的默认密码是
改变
要应用更改,您需要重新启动 java JVM。
完成后,如果您在非临时位置创建了临时文件,则可以将其删除:
$ rm /tmp/myserver.crt
关于java - 间歇性 - SunCertPathBuilderException : unable to find valid certification path to requested target,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28332322/
我们想在应用商店中发布一个应用。为我们构建它的第 3 方需要我们通过苹果开发门户创建的证书和配置文件。根据文档,创建证书的方法是使用 mac 的钥匙串(keychain)应用程序,然后选择“从证书颁发
我正在尝试使用 Java Http 客户端连接到服务器以进行 Web 服务调用。如果我用下面的代码打开网络调试.. System.setProperty("javax.net.debug", "all
我在尝试推送我的更改时才开始收到此错误。我不知道我的系统发生了什么变化,并且在这方面不应该有任何自签名证书。 Git 已卸载并重新安装。 Git 似乎使用了正确的包: http.sslcainfo=C
除非我设置以下内容,否则我会收到上述错误: curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 这是不安全的,违背了 SSL 的目的。 我已经从 http
我有一个基于 Linux 的 Docker 容器,如果我这样做: curl https://google.com ...然后我得到一个错误: curl: (60) SSL certificate pr
我想在我的 Linux 计算机上安装 nvm。(我的 Debian 版本是 10,Git 版本是 2.27。OPENSSL 版本是 1.1.1d 2019 年 9 月 10 日) 我阅读了这份文件 h
我正在使用 Symfony 5,我需要使用 composer 安装 'knplabs/knp-snappy-bundle' 但我有这个消息: [Composer\Downloader\Transpor
我已经通过 VSTS 部署我的应用程序一段时间了,然后突然出现此错误: 无法访问 SSL 证书问题:(url) 证书链中的自签名证书。 为什么突然发生这种情况,我该如何解决? 更新:我注意到我有一个新
我正在尝试使用安全性配置 WCF 服务。我生成了 2 个存储在 LocalComputer\Personal Certificates 中的证书(用于服务器和客户端)。我的配置是: 服务器:
我正在创建连接到的 Azure 函数来执行 PnP 命令。我已经创建了 docs 中提到的证书。我总是收到Cannot findcertificate with this指纹在证书存储中。Except
美好的一天,我是服务器设置的新手。我目前正在使用 laravel 5.4 来集成我的 quickbooks app在我的实时服务器上 http://qb.dagnum.com/connect但我继续收
我正在尝试从 Github 克隆一个项目但我无法克隆它,因为我有这个错误 无法访问:SSL 证书问题:证书链中的自签名证书 我可以从我的网络访问并且我有证书。 我的Android Studio有什么问
我正在尝试使用 AWS-CLI 检索 aws elasticbeanstalk 详细信息,但出现以下错误。 错误信息: C:\abdul>aws elasticbeanstalk describe-e
我实际上正在阅读有关证书和证书链的内容。我了解证书是由实体的私钥签名的一段数据,只能使用给定实体(例如根 CA)的公钥解密。 但是,我在几个地方看到“证书签署另一个证书”(例如:Microsoft I
我想默认“接受”新证书。我尝试了以下方法。 $ dpkg-reconfigure -f noninteractive ca-certificates 它运行,但没有添加 CA。 如果不行,直接修改/e
有人通过AWS Certificate Manager为他们的域名购买了通配符证书,我需要将其转移到Heroku,以获取使用域名子域名的应用程序。 无论是通过AWS控制台还是通过其CLI,我都找不到如
我可以通过重新启动我的 Windows 7 来运行 selenium 服务器。但是,如果我终止服务器并再次启动它,我将收到此错误。有时执行 webdriver-manager update--igno
我在 IE9 中遇到安全证书问题。 然后我去我得到的特定地址 There is a problem with this website's security certificate. 如何避免出现此窗
应用签名证书和上传证书有什么区别? 我在将 Google Play 游戏与我的应用程序集成时遇到了问题(我将此作为另一个问题发布),我注意到用于在 Google API 控制台上自动生成的客户端 ID
我正在尝试在 Mac 上使用 Heroku CLI。 当我尝试使用 Heroku login 登录 Heroku 并提供我的凭据时,出现以下错误: Error: self signed certifi
我是一名优秀的程序员,十分优秀!