怎样在filter里进行dispatcher

Question

类似if (request.getServletPath().toString().startsWith("/abc")) {
arg2.doFilter(request, arg1);
}else {
request.getRequestDispatcher("/abc" + request.getServletPath()).forward(request, arg1);
}
这样的逻辑
可是好像，不能成功

Answer 1

request.getRequestDispatcher("/abc" + request.getServletPath()).forward(request, arg1);==>request.getRequestDispatcher("/abc/XXXX.jsp" ).forward(request, arg1);

Answer 2

request.getServletPath() 和/XXXX.jsp是一样的应该

Answer 3

刚好在我的代码里找到一段：public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
HttpSession session = ((HttpServletRequest)request).getSession();

if(session.getAttribute("user")==null){
((HttpServletRequest)request).getRequestDispatcher("bglogin/index.jsp").forward(request, response);这里改成你的页面
}
else{
chain.doFilter(request, response);
}
}