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我想在引发异常时在JSF 2.0(MyFaces)应用程序中显示默认的Tomcat错误页面。JSF默认的tomcat错误页面
我添加以下几行加到web.xml中:
<error-page>
<exception-type>java.lang.Throwable</exception-type>
<location>/ErrorHandler</location>
</error-page>
<context-param>
<param-name>org.apache.myfaces.ERROR_HANDLING</param-name>
<param-value>false</param-value>
</context-param>
而且这里的ErrorHandler的servlet:
public class ErrorHandler extends HttpServlet {
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Error");
}
}
但不是缺省的Tomcat的错误页面显示空白页错误代码为500.
当我尝试访问ErrorHandler servlet直接通过URL,它工作正常:显示Tomcat错误页面。
所以我猜想原因是JSF错误处理机制?我究竟做错了什么?