jsp随记 2019.10.13---请求转发和重定向

更新（2019.12.03）：

		两个挺蠢的语句，记录下吧，以后回顾
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html; charset=UTF-8");
PrintWriter out = response.getWriter();
		
String username = request.getParameter("username") ;

		
out.print("<script>alert('发送成功，请按提示操作。。') ;window.location='index.jsp'</script>");

response.sendRedirect("login1?id="+per.getUserid()+"&psd="+per.getPsd()+"") ;

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1.request请求转发

1. request跳转页面同时传值

String name = "haiyou1";
request.setAttribute("name", name);
request.getRequestDispatcher("/WEB-INF/new1.jsp").forward(request,response);

2. request跳转页面后获取值

String name = request.getAttribute("name");

2.response重定向

response.sendRedirect("success.jsp") ;