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RequestDispatcher.forward() 方法和HttpServletResponse.sendRedirect()方法的区别

RequestDispatcher.forward() 方法和HttpServletResponse.sendRedirect()方法的区别

先贴一段代码

    public void logon(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{                RequestDispatcher rd=null;        LoginJdbc login=new LoginJdbc();        Student stu = new Student();        stu.setNum(request.getParameter("userNum"));        stu.setPassword(request.getParameter("userPass"));                    boolean mark = login.login(stu);                  //获取登入标记                    if(!mark){            response.sendRedirect("2/error.jsp");        }        else{            rd=request.getRequestDispatcher("2/Registration.jsp");            rd.forward(request,response);        }                    }

代码中用到了RequestDispatcher.forward() 方法和HttpServletResponse.sendRedirect()方法,所以我就在思考着俩个方法有什么区别,然后通过运用我的代码,总结了一下表格:

RequestDispatcher.forward() 方法HttpServletResponse.sendRedirect()方法
运行在服务端运行在客户端
浏览器url地址不变化

 

浏览器url地址变化                 

RequestDispatcher.forward() 方法和HttpServletResponse.sendRedirect()方法的区别