@Valid 对表单进行验证

在学到springBoot的课程中遇到了使用@Valid进行表单验证

controller

//@Valid Girl girl  ：需要进行验证的类
//BindingResult  验证之后返回的对象
@PostMapping(value = "/girls")
    public Object girlAdd(@Valid Girl girl, BindingResult bindingResult){
        if(bindingResult.hasErrors()){
            System.out.println(bindingResult.getFieldError().getDefaultMessage());
            return bindingResult.getFieldError().getDefaultMessage();
        }
        girl.setAge(girl.getAge());
        girl.setCupSize(girl.getCupSize());
        return girlRespository.save(girl);

    }

实体类：

package com.winter.entity;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.validation.constraints.Min;

/**
 * Created by Administrator on 2017/7/4.
 */
@Entity()
public class Girl {

    @Id
    @GeneratedValue
    private Integer id;
    private String cupSize;
    //需要在这个类中使用验证的注解，除了这个还有@notNull....等等
    @Min(value=18, message = "未成年人请勿入内")
    private Integer age;

    public Girl() {
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getCupSize() {
        return cupSize;
    }

    public void setCupSize(String cupSize) {
        this.cupSize = cupSize;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}