springboot伺服器校驗規則
阿新 • • 發佈：2018-12-21
一、依賴
<!--web啟動器-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--thymeleaf啟動器-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>二、controller
public class User {
@NotEmpty//不去首尾空格
@Length(min = 2,max = 6)
private String name;
@NotBlank(message = "密碼不能為空") //去掉首尾空格
private String password;
@Min(value = 20)
@Max(value = 99)
private Integer age;
@Email
private String email;
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
@Override
public String toString() {
return "User [name="+name+",passwor="+password+",age="+age;
}
}@Controller
public class UserController {
@RequestMapping(value = "/addUser")
public String showPage(@ModelAttribute("aa") User user){
return "add";
}
@RequestMapping(value = "/save")
public String saveUser(@ModelAttribute("aa") @Valid User user, BindingResult result){
if (result.hasErrors()){
return "add";
}
System.out.println(user);
return "ok";
}
}三、頁面
add.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form th:action="@{/save}" method="post">
姓名：<input type="text" name="name"/><font color="red" th:errors="${aa.name}"></font><br/>
密碼：<input type="password" name="password"/><font color="red" th:errors="${aa.password}"></font><br/>
年齡：<input type="text" name="age"/><font color="red" th:errors="${aa.age}"></font><br/>
郵箱：<input type="text" name="email"/><font color="red" th:errors="${aa.email}"></font><br/>
提交：<input type="submit" value="ok"/><br/>
</form>
</body>
</html>
ok.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
ok
</body>
</html>