Servlet中请求数据的传递、请求转发与页面跳转

页面跳转、请求转发与请求数据的传递

• 请求数据的传递

– request. setAttribute ( String,Object );

– request. getAttribute (String), 返回 Object

• 请求转发

– request.getRequestDispatcher (" targetURL "). forward (request, response);

• 页面跳转

– response. sendRedirect (" targetURL ")