重定向和请求转发 

@Controller
public class ViewController {

    //页面重定向
    @RequestMapping("v1")
    public String queryView1(){
        return "redirect:v1.jsp?a=123";
    }

    //中文乱码
    @RequestMapping("v2")
    public String queryView2(RedirectAttributes redirectAttributes){
        redirectAttributes.addAttribute("a","中文");
        return "redirect:v1.jsp";
    }

    //ModelAndView
    @RequestMapping("v3")
    public ModelAndView queryView3(){
        ModelAndView mv=new ModelAndView();
        mv.setViewName("redirect:v1.jsp");
        mv.addObject("a","中文");
        return mv;
    }

    //重定向到方法
    @RequestMapping("v5")
    public ModelAndView queryView5(){
        ModelAndView mv=new ModelAndView();
        mv.setViewName("redirect:test.do");
        mv.addObject("a","中文");
        return mv;
    }

    //转发
    @RequestMapping("v4")
    public ModelAndView queryView4(){
        ModelAndView mv=new ModelAndView();
        mv.setViewName("forward:test.do?a=admin");
        return mv;
    }
}

v1.jsp

<html>
<head>
    <title>Title</title>
</head>
<body>
V1
${param.a}
</body>
</html>

test.do

@Controller
public class TestController {

    @RequestMapping("test")
    public void test(String a){
        System.out.println(a+"test");
    }
}
posted @ 2022-10-13 12:51  lwx_R  阅读(26)  评论(0)    收藏  举报