@ModelAttribute用法和demo

后台代码

&＃64;RequestMapping("/addUser")public String addUser(&＃64;ModelAttribute("user") User user, Model model){boolean ifaddSuccess &＃61; this.userService.addUser(user);if(!ifaddSuccess){return "modifyUser";}List<User> users &＃61; this.userService.findAllUsers();model.addAttribute("users",users);return "showUser";
}

前台代码

<div class&＃61;"row"><div class&＃61;"col-md-4 col-md-offset-8"><a class&＃61;"btn btn-primary" href&＃61;"${path}/user/addUser">新增a>div>
div>

<div class&＃61;"row"><div class&＃61;"col-md-12"><table class&＃61;"table table-hover"><tr><th>idth><th>用户名th><th>密码th><th>年龄th><th>操作th>tr><c:forEach items&＃61;"${users}" var&＃61;"user"><tr><td>${user.id}td><td>${user.userName }td><td>${user.password}td><td>${user.age }td>
<td><a type&＃61;"button" href&＃61;"${path}/user/modifyUser?id&＃61;${user.id}" class&＃61;"btn btn-info btn-sm"><span class&＃61;"glyphicon glyphicon-pencil" aria-hidden&＃61;"true">span>编辑a><a type&＃61;"button" href&＃61;"${path}/user/delUser?id&＃61;${user.id}" class&＃61;"btn btn-danger btn-sm"><span class&＃61;"glyphicon glyphicon-trash" aria-hidden&＃61;"true" >span>删除a>td>tr>c:forEach>table>div>
div>

点击增加按钮&＃xff0c;前台user对象会与&＃64;ModelAttribute("user") User user相互匹配。