使用httpClient连接https时使用服务端证书（self-signed certificate）的方法

使用httpClient连接https时一般要在客户端引入证书。引入方法有三种：

1、在jdk中导入证书；

2、将证书路径设置到环境变量中：

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

3、启动java进程时将证书路径加入到启动参数中。

有时访问https网站时是不需要证书的。有时使用客户端证书不一定成功， 抛各种各样与证书相关的错误。这时可以使用服务端证书（self-signed certificate）。方法很简单，只需在httpClient调用之前先注销默认的Socket Factory，使用自定义的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));

它需要依赖not-yet-commons-ssl-0.3.9.jar包:

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>not-yet-commons-ssl</artifactId>
    <version>0.3.9</version>
</dependency>

我遇到抛的异常为：

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