springMVC的简单数据绑定

摇滚侠2023-09-10 20:32

java

java 复制代码

//获得传递过来的参数
    //方式1
    @RequestMapping("/add")
    public String add(HttpServletRequest request)
    {
        String id= request.getParameter("id");

        System.out.println(id);

        return "success";
    }

    //方式2
    @RequestMapping("/add2")
    public String add2(int id)
    {
        System.out.println(id);

        return "success";
    }

    //方式3
    //当传递的参数不一致的时候 可以用@RequestParam 声明
    @RequestMapping("/add3")
    public String add3(@RequestParam(value="id") int uid)
    {
        System.out.println(uid);

        return "success";
    }

jsp

html 复制代码

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h2>Hello World!</h2>

<a href="users/reg">注册</a>

<a href="users/login">登录</a>

<a href="users/add?id=1">添加</a>

<a href="users/add2?id=1">添加2</a>

<a href="users/add3?id=1">添加3</a>

<a href="users/add4?id=1&name=zhangsan">添加4</a>

<!-- rest风格 -->
<a href="users/add5/1/zhangsan">添加5</a>

<!-- ant风格-->
<a href="users/aa/add6">添加6</a>

</body>
</html>