Solve the problem that @valid list parameters cannot be verified

@Validated When it comes to list Object cannot take effect solution , Go straight to the code

controller layer

 @PostMapping("/savePersons")
    public String savePersons(@Validated @RequestBody PersonListValidDTO persons) {
    
        System.out.println(persons);
        //return this.personService.save(person);
        return "ok";
    }

DTO layer

package com.fan.dto;

import com.fan.entity.Person;
import lombok.Data;

import javax.validation.Valid;
import java.io.Serializable;
import java.util.List;

/** * @author およそ god  * @version JDK 1.8 */
@Data
public class PersonListValidDTO implements Serializable {
    
    @Valid
    List<Person> list;
}

Entity class

package com.fan.entity;

import java.io.Serializable;
import java.util.Date;

import com.alibaba.fastjson.annotation.JSONField;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableLogic;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.format.annotation.DateTimeFormat;

import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotNull;

/** * @author * gsxx * finished */
@Data
@NoArgsConstructor
@ApiModel(value="com.fan.entity", description="Person Entity class ")
public class Person implements Serializable {
    
    /** *  Number  */
    @ApiModelProperty(value = " Number ")
    //@NotNull(message = "id Can't be empty ")
    private Integer id;

    /** *  name  */
    @ApiModelProperty(value = " name ")
    @NotBlank(message = " Name cannot be empty ")
    private String name;

    /** *  Age  */
    @ApiModelProperty(value = " Age ")
    //@NotNull(message = " Age cannot be empty ")
    private Integer age;

    /** *  Modifier  */
    @ApiModelProperty(value = " Modifier ")
    private String updateby;

    /** *  Modification time  */
    @ApiModelProperty(value = " Modification time ")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    @JSONField(format = "yyyy-MM-dd HH:mm:ss")
    private Date updatetime;



    private static final long serialVersionUID = 1L;
}