URL连接给出证书路径错误

Wile我试图连接 https 给出证书错误

javax.net.ssl.SSLHandshakeException：sun.security.validator.ValidatorException：PKIX路径构建失败：sun.security.provider.certpath.SunCertPathBuilderException：无法在sun.security.ssl.Alerts找到所请求目标的有效证书路径 . get.SLException（Alerts.java:192）at sun.security.ssl.SSLSocketImpl.fatal（SSLSocketImpl.java:1886）at sun.security.ssl.Handshaker.fatalSE（Handshaker.java:276）at sun.security.ssl.Handshaker位于sun.security.ssl的sun.security.ssl.ClientHandshaker.serverMertage（ClientHandshaker.java:1341）sun.security.ssl的sun.security.ssl.ClientHandshaker.processMessage（ClientHandshaker.java:153）.fatalSE（Handshaker.java:270） . Handshaker.processLoop（Handshaker.java:868）at sun.security.ssl.Handshaker.process_record（Handshaker.java:804）at sun.security.ssl.SSLSocketImpl.readRecord（SSLSocketImpl.java:1016）at sun.security.ssl .SSLSocketImpl.performInitialHandshake（SSLSocketImpl.java:1312）at sun.security.ssl.SSLSocketImpl.startHandshake（SSLSocketImpl.java:1339）at sun .security.ssl.SSLSocketImpl.startHandshake（SSLSocketImpl.java:1323）在sun.net.www.protocol.https.HttpsClient.afterConnect（HttpsClient.java:515）在sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.setProxiedClient （AbstractDelegateHttpsURLConnection.java:142）在sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.setProxiedClient（AbstractDelegateHttpsURLConnection.java:118）在sun.net.www.protocol.http.HttpURLConnection.writeRequests（HttpURLConnection.java:629）在sun.net.www.protocol.http.HttpURLConnection.getInputStream（HttpURLConnection.java:1320）在java.net.HttpURLConnection.getResponseCode（HttpURLConnection.java:468）在sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode（ HttpsURLConnectionImpl.java:338）在com.poc.TestServlet.doPost（TestServlet.java:75）在javax.servlet.http.HttpServlet.service（HttpServlet.java:641）在javax.servlet.http.HttpServlet.service（HttpServlet的.java：722）org.apache.catalina.core.ApplicationFilterChain.internalDoFilte R（ApplicationFilterChain.java:304）处org.apache在org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:240）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210） .catalina.core.StandardContextValve.invoke（StandardContextValve.java:164）在org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:462）在org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java ：164）org.apache.catalina.valves.Error.ReportValve.invoke（ErrorReportValve.java:100）org.apache.catalina.valves.AccessLogValve.invoke（AccessLogValve.java:562）org.apache.catalina.core . org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:395）上的StandardEngineValve.invoke（StandardEngineValve.java:118）org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250）at org org.apache.tomcat.util.n上的.apache.coyote.http11.Http11Protocol $ Http11ConnectionHandler.process（Http11Protocol.java:188） et.JIoEndpoint $ SocketProcessor.run（JIoEndpoint.java:302）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1145）在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:615）在java.lang.Thread.run（Thread.java:722）产生的原因：sun.security.validator.ValidatorException：PKIX路径建设失败：sun.security.provider.certpath.SunCertPathBuilderException：无法找到有效的认证路径请求的目标在sun.security.validator.PKIXValidator.doBuild（PKIXValidator.java:385）在sun.security.validator.PKIXValidator.engineValidate（PKIXValidator.java:292）在sun.security.validator.Validator.validate（Validator.java:260 ）在sun.security.ssl.X509TrustManagerImpl.validate（X509TrustManagerImpl.java:326）在sun.security.ssl.X509TrustManagerImpl.checkTrusted（X509TrustManagerImpl.java:231）在sun.security.ssl.X509TrustManagerImpl.checkServerTrusted（X509TrustManagerImpl.java： 126）at sun.security.ssl.ClientHandshaker.serverCertificate（ClientH sun.security.provider.certpath.SunCertPathBuilderException：andshaker.java:1323）... 33多个致无法在sun.security.provider.certpath.SunCertPathBuilder.engineBuild（SunCertPathBuilder.java找到有效的认证路径请求的目标： 196）at java.security.cert.CertPathBuilder.build（CertPathBuilder.java:268）at sun.security.validator.PKIXValidator.doBuild（PKIXValidator.java:380）... 39更多

连接是简单的https连接