Spring Mvc使用JSR-303验证-蒲公英云

Spring Mvc使用JSR-303验证

短命女 2022-04-13 12:17 266阅读 0赞

提前注意：可能会出现以下错误

Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/el/ELManager

避免方法：使用 tomcat9

需要maven依赖

<!--JSR-303 验证框架接口，用于验证字段正确性，比如验证邮箱格式-->
    <!-- https://mvnrepository.com/artifact/org.hibernate.validator/hibernate-validator -->
    <dependency>
      <groupId>org.hibernate.validator</groupId>
      <artifactId>hibernate-validator</artifactId>
      <version>6.0.13.Final</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
    <dependency>
      <groupId>javax.validation</groupId>
      <artifactId>validation-api</artifactId>
      <version>2.0.1.Final</version>
    </dependency>

Bean代码

public class LoseUser   {
    public interface Register{};//注册功能分组
    public interface SendRegisterEmailCode{};
    private Integer id ;
    @Email(message = "邮箱格式不正确",groups = {Register.class,SendRegisterEmailCode.class})
    private String loginname ;
    @Size(min = 8,max = 16,message = "密码长度为8-16位",groups = {Register.class})
    private String password ;
    @Size(min = 6,max = 6,message = "验证码格式不正确",groups = {Register.class})
    private String emailCode;//邮箱验证码
    public LoseUser() {
    }
    //省略get、set方法
}

控制器代码

@RequestMapping("sendEmailCode")
    @ResponseBody
    public AjaxRes sendEmailCode(@Validated({LoseUser.SendRegisterEmailCode.class}) LoseUser loseUser,BindingResult result){
        AjaxRes res=new AjaxRes();
        if(result.hasErrors()){
            List<ObjectError> allErrors = result.getAllErrors();
            FieldError objectError = (FieldError)allErrors.get(0);//每次取出第一个错误，并且返回到前端
            res.setFailMsg(objectError.getDefaultMessage());
            return res;
        }else {
            res.setFailMsg("验证失败");
            return res;
        }
    }