在eclipse中建立web工程，并引入相应的java文件，在tomcat中配置jaas,最后在eclipse中启动tomcat，在管理后台输入用户名和密码，报一下错误。最奇怪的是我把下载的jivejdon.war包放到webapps中，启动后可以成功登陆管理后台，这说明我tomcat环境没有错误。
2009-11-14 20:14:23 org.apache.catalina.realm.JAASRealm authenticate
严重: Unexpected error
java.lang.SecurityException: 无法定位登录配置
at com.sun.security.auth.login.ConfigFile.<init>(ConfigFile.java:93)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at javax.security.auth.login.Configuration$3.run(Configuration.java:246)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.Configuration.getConfiguration(Configuration.java:241)
at javax.security.auth.login.LoginContext$1.run(LoginContext.java:237)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.LoginContext.init(LoginContext.java:234)
at javax.security.auth.login.LoginContext.<init>(LoginContext.java:403)
at org.apache.catalina.realm.JAASRealm.authenticate(JAASRealm.java:345)
at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:258)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:417)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.IOException: 无法定位登录配置
at com.sun.security.auth.login.ConfigFile.init(ConfigFile.java:250)
at com.sun.security.auth.login.ConfigFile.<init>(ConfigFile.java:91)
... 24 more
tomcat版本jivejdon 无法定位登录配置
2009-11-14 20:50
那就不要在eclipse里面跑，编译出来跑
2010-06-02 19:56
在eclipse中启动tomcat，在 catalina.bat 配置的-Djava.security.auth.login.config=$CATALINA_BASE/conf/jaas.config 就不起作用，不知为何。。
可以在 Eclipse 里配置tomcat的时候，tomcat的jdk的参数(Optional Java VM arguments) 加上 -Djava.security.auth.login.config=D:/tomcat/tomcat_jdon/conf/jaas.config。注意路径要修改一下。