JRebel: javax.servlet.ServletException: javax.servlet.ServletException:过滤请求失败

Question

创意: 2018.3码头: 9.4.11

我按照我的想法中给出的说明下载了j反演文件夹。

在调试模式下运行Jetty服务器时，我会得到以下错误。

HTTP ERROR 500
Problem accessing /. Reason:

    Server Error
Caused by:
javax.servlet.ServletException: javax.servlet.ServletException: Filtered request failed.
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.Server.handle(Server.java:531)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
    at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
    at java.lang.Thread.run(Thread.java:748)
Caused by: javax.servlet.ServletException: Filtered request failed.
    at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:384)
    at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
    at org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:1317)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:42020)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
    ... 10 more
Caused by: java.lang.StackOverflowError
    at org.eclipse.jetty.server.Dispatcher$ForwardAttributes.getAttribute(Dispatcher.java:300)

Answer 1

您的代码中有一个导致转发和/或重定向循环的错误。

看见

• https://github.com/eclipse/jetty.project/issues/2399
• https://github.com/eclipse/jetty.project/issues/2402

正如上面第2399号问题所指出的，您可以添加一个筛选器来记录您的转发行为，以查看代码中实际发生了什么。

这将帮助您诊断转发循环来自何处。

public static class SimpleFilter implements Filter
{
    @Override
    public void init(FilterConfig filterConfig) throws ServletException { }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException
    {
        HttpServletRequest  request;
        HttpServletResponse response;

        if (!(req instanceof HttpServletRequest &&
                res instanceof HttpServletResponse)) {
            throw new ServletException("non-HTTP request or response");
        }

        request = (HttpServletRequest) req;
        response = (HttpServletResponse) res;

        System.out.printf("%s.doFilter() - dispatch:%s uri:%s filterchain:%s%n", this.getClass().getSimpleName(), request.getDispatcherType(), request.getRequestURI(), chain);
        chain.doFilter(request, response);
    }

    @Override
    public void destroy() { }
}