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It is common to introduce a certificate on the client side when using httpClient to connect to https. There are three ways to introduce:

1. Import a certificate in jdk

2. Set the certificate path to the environment variable:

System.setProperty ("javax.net.ssl.trustStore", keyStore_path)

System.setProperty ("javax.net.ssl.trustStorePassword", keyStore_password)

3. Add the certificate path to the startup parameters when starting the java process.

Sometimes you don't need a certificate to visit a https website. Sometimes the use of client certificates may not be successful, throwing a variety of certificate-related errors. At this point, you can use a server-side certificate (self-signed certificate). The method is simple, as long as you log out of the default Socket Factory before the httpClient call and use the custom Socket Factory:

Org.apache.commons.httpclient.protocol.Protocol.unregisterProtocol ("https"); org.apache.commons.httpclient.protocol.Protocol.registerProtocol ("https", new Protocol ("https", (ProtocolSocketFactory) new org.apache.commons.httpclient.contrib.ssl.EasySSLProtocolSocketFactory (), 13087); org.apache.commons.httpclient.protocol.Protocol.unregisterProtocol ("https") Org.apache.commons.httpclient.protocol.Protocol.registerProtocol ("https", new Protocol ("https", (ProtocolSocketFactory) new org.apache.commons.httpclient.contrib.ssl.EasySSLProtocolSocketFactory (), 13087))

It depends on the not-yet-commons-ssl-0.3.9.jar package:

Org.apache.commons

Not-yet-commons-ssl

0.3.9

The exception I encountered was:

Org.apache.axis2.AxisFault: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

At org.apache.axis2.AxisFault.makeFault (AxisFault.java:430)

At org.apache.axis2.transport.http.SOAPMessageFormatter.writeTo (SOAPMessageFormatter.java:83)

...

Caused by: com.ctc.wstx.exc.WstxIOException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

At com.ctc.wstx.sw.BaseStreamWriter.flush (BaseStreamWriter.java:313)

At org.apache.axiom.om.impl.MTOMXMLStreamWriter.flush (MTOMXMLStreamWriter.java:146)

...

Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

At com.sun.net.ssl.internal.ssl.Alerts.getSSLException (Alerts.java:150)

...

Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

At sun.security.validator.PKIXValidator.doValidate (PKIXValidator.java:187)

...

Caused by: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

At sun.security.provider.certpath.PKIXCertPathValidator.engineValidate (PKIXCertPathValidator.java:195)

At java.security.cert.CertPathValidator.validate (CertPathValidator.java:206)

At sun.security.validator.PKIXValidator.doValidate (PKIXValidator.java:182)

... 49 more

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