Java mail by SSL

如果没有设置证书，会出现以下Exception:

Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

要解决这个问题，方法有两个：

1. java的启动参数添加 -Djavax.net.ssl.trustStore=/path/to/jssecacerts

2. Properties systemProps = System.getProperties();

   systemProps.put( "javax.net.ssl.trustStore", "/path/to/jssecerts");

   System.setProperties(systemProps);

 

参考：

http://www.rap.ucar.edu/staff/paddy/cacerts/index.html

http://code.google.com/p/java-use-examples/source/browse/trunk/src/com/aw/ad/util/InstallCert.java