前端页面通过thymeleaf渲染
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
前后端的传递关键在html上面,请看代码:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8" />
<title>Insert title here</title>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.4/css/bootstrap.min.css" />
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-3 column">
<form role="form" method="POST" th:action="@{/userLogin}" th:object="${user}">
<label for="username">Name</label><input type="text" class="form-control" id="username" th:field="*{name}" />
<label for="password">Password</label><input type="password" class="form-control" id="password" th:field="*{password}" />
<button type="submit" class="btn btn-default">Sign in</button>
</form>
<ul class="nav nav-pills">
<li role="presentation"><a href="register.html" class="href" target="_blank">Sign up</a></li>
</ul>
</div>
</div>
</div>
</body>
</html>
th:action="@{/userLogin}" 表示这个form表单的action会指向/userLogin
th:object="${user}" 表示form表单的内容会以user的形式传递
th:field:"*{name}" 表示该input输入的值,也就是前端的值存储在name中
如果你在前端输入name=jwen,password=1234,当这个表单提交的时候,就会把name=jwen,password=1234存放在user中传递给/userLogin
那么看看controller层怎么接接收这个的
@RequestMapping(value = "/userLogin", method = RequestMethod.POST)
String userLogin(User user, Model model) {
boolean verify = userService.verifyUser(user);
if (verify) {
model.addAttribute("name", user.getName());
model.addAttribute("password", user.getPassword());
return "result";
} else {
return "redirect:/notVerify";
}
}
requestMapping将/userLogin绑定给userLogin方法,该方法的入参是一个User的实例,一个Model的实例
而这个User的实例,就是我们从前端传递的,就是说你在userLogin方法,可以得到前端传递的东西;