Sping 补充完成修改功能

1.视图层完整示例

	<form action="#" th:action="@{/update/{id}(id=${user.id})}" th:object="${user}" method="post" >
		<label for="name" >姓名</label>
		<input type="text" th:field="*{name}" id="name" placeholder="Name" >

		<p th:if="${#fields.hasErrors('name')}" th:errors="*{name}" ></p>

		<label for="age">年龄</label>
		<input type="text" th:field="*{age}"   id="age" placeholder="age" name="age">

		<p th:if="${#fields.hasErrors('age')}" th:errors="*{age}"></p>

		<label for="email">邮箱</label>
		<input type="text" th:field="*{email}" id="email" placeholder="Email">

		<p th:if="${#fields.hasErrors('email')}" th:errors="*{email}" ></p>

		<input type="submit" value="修改">
	</form>

　　2.控制器层代码

	@PostMapping("/edit/{id}")
	public String editUser(@Valid User user,BindingResult bindingResult) {

		if(bindingResult.hasErrors()) {
			return "update-user";
		}
		return "update-user";
	}

动图示例