Spring 数据校验 Validation （3） 基于方法实现校验

第一步 创建配置类，配置MethodValidationPostProcessor

package com.atguigu.Validator3;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.validation.beanvalidation.MethodValidationPostProcessor;

@Configuration
@ComponentScan("com.atguigu.Validator3")
public class ValidationConfig {
    @Bean
    public MethodValidationPostProcessor validationPostProcessor(){
        return new MethodValidationPostProcessor();
    }
}

第二步 创建实体类，使用注解设置校验规则

package com.atguigu.Validator3;

import jakarta.validation.constraints.*;

public class User {
    @NotNull
    private String name;
    @Max(120)
    @Min(0)
    private int  age;

    @Pattern(regexp = "^1(3|4|5|7|8)\\d{9}$",message = "手机号码格式错误")
    @NotBlank(message = "手机号不能为空")
    private String  phone;

    public void setName(String name) {
        this.name = name;
    }

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

    public void setPhone(String phone) {
        this.phone = phone;
    }
}

第三步 定义Service类，通过注解操作对象

package com.atguigu.Validator3;


import jakarta.validation.Valid;
import jakarta.validation.constraints.NotNull;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;

@Service
@Validated
public class Myservice {
    public String TestMethod(@NotNull @Valid User user) {
        return user.toString();
    }

}

第四步 测试

package com.atguigu.Validator3;

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

public class TestUser {
    public static void main(String[] args) {
        ApplicationContext context=
                new AnnotationConfigApplicationContext(ValidationConfig.class);
        Myservice myservice = context.getBean(Myservice.class);
        User user=new User();
        user.setAge(18);
        user.setName("yoyo");
        user.setPhone("15299698836");
        myservice.TestMethod(user);
            }
}