jsp修改HTTP header返回404状态码

1、修改HTTP header的Location属性进行重定向

//返回301状态码

response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);

response.setHeader("Location","http://market.21-sun.com/404.htm");

//返回404状态码

response.setStatus(HttpServletResponse.SC_NOT_FOUND);返回404状态码

request.getRequestDispatcher("/404.htm").forward(request,response);