## 默認行為 ~~~ @RequestMapping(path = "/ok") public void testResponse() { System.out.println("hello"); } ~~~ 里面的方法執行了,但是頁面報錯404.并且默認的尋找的頁面是注解配置的路徑名.  ## 請求轉發 ~~~ @RequestMapping(path = "/ok") public void testResponse(HttpServletRequest request, HttpServletResponse response) throws Exception { //編寫請求轉發的程序.請求轉發是一次請求,不用編寫項目的名稱 request.getRequestDispatcher("/WEB-INF/pages/success.jsp").forward(request, response); return; } ~~~ ## 重定向 ~~~ @RequestMapping(path = "/ok") public void testResponse(HttpServletRequest request, HttpServletResponse response) throws Exception { //重定向是兩次兩次請求,所以無法重定向到WEB-INF目錄下 response.sendRedirect(request.getContextPath()+"/index.jsp"); return; } ~~~ ## 直接輸出 ~~~ @RequestMapping(path = "/ok") public void testResponse(HttpServletRequest request, HttpServletResponse response) throws Exception { response.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); response.getWriter().print("hello"); return; } ~~~