Java Servlet 过滤器 - 错误 404 - 未从 RFC 2068 超文本传输协议中找到 - HTTP/1.1
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Servlet Filter - Error 404--Not Found From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1
提问by user1251490
iam using the below code in servlet filters to avoid direct acess of pages from the URL but i get Error 404--Not Found - From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1irrespective of the URL i try.
我在 servlet 过滤器中使用以下代码来避免从 URL 直接访问页面，但我收到错误 404--未找到-来自 RFC 2068 超文本传输协议 -- HTTP/1.1，而不管我尝试的 URL。
Code:
代码：
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
String uri = req.getRequestURI();
this.context.log("Requested Resource::"+uri);
HttpSession session = req.getSession(false);
if(session == null && !(uri.endsWith("html") || uri.endsWith("LoginServlet"))){
this.context.log("Unauthorized access request");
res.sendRedirect("login.html");
}else{
// pass the request along the filter chain
chain.doFilter(request, response);
}
}
My Web.xml
我的网页.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>ServletFilterExample</display-name>
<filter>
<filter-name>RequestLoggingFilter</filter-name>
<filter-class>com.journaldev.servlet.filters.RequestLoggingFilter</filter-class>
</filter>
<filter>
<filter-name>AuthenticationFilter</filter-name>
<filter-class>com.journaldev.servlet.filters.AuthenticationFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>RequestLoggingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>AuthenticationFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>login.html</welcome-file>
</welcome-file-list>
</web-app>
Environment used: Weblogic server 11gR1 and web app 2.5
使用环境：Weblogic server 11gR1 和 web app 2.5
I'm Hitting the url :
我正在点击网址：
http://localhost:7001/Filters/LoginServlet
Could you please help.
能否请你帮忙。
Thanks.
谢谢。
回答by Keerthivasan
I strongly recommend you to check whether you are application is properly deployed in your server. I see that the configurations in web.xml are fine, mapped with filters properly with URL. Please double check it.
我强烈建议您检查您的应用程序是否正确部署在您的服务器中。我看到 web.xml 中的配置很好，用 URL 正确映射了过滤器。请仔细检查。
