servlet过滤器中怎么修改request的部分内容,然后把它重定向到另外一个服务器上?

Question

只能增加attribute,其他的基本动不了。

Answer 1

public void doFilter(ServletRequest request,
                       ServletResponse response,
                       FilterChain chain
                       ) throws java.io.IOException,
      javax.servlet.ServletException {
//先强制转换
    HttpServletRequest hrequest = (HttpServletRequest) request;
    HttpServletResponse hresponse = (HttpServletResponse) response;
    
    hrequest.getRequestDispatcher("http://xx.xx.xx?dsd=sds&dfd=dfdf").forward(request,response);
      return;