SpringBoot数据校验功能的实现

1.pom.xml

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.6.3
         
    
    com.yl
    validation
    0.0.1-SNAPSHOT
    validation
    Demo project for Spring Boot
    
        11
    
    
        
            org.springframework.boot
            spring-boot-starter-validation
        
            spring-boot-starter-web

            spring-boot-starter-test
            test
    
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

2.实体类，注意：可以不用加ValidationMessages.properties文件，可以直接在message=""地方直接写上报错信息

package com.yl.validation.model;
import com.yl.validation.validation.ValidationGroup1;
import com.yl.validation.validation.ValidationGroup2;
import javax.validation.constraints.*;
import java.io.Serializable;
public class User implements Serializable {
    private Integer id;
    //校验字符串长度
    @Size(min = 3,max = 8,message = "{user.username.size}",groups = ValidationGroup1.class)
    private String username;
    //非空校验
    @NotNull(message = "{user.password.notnull}")
    private String password;
    //数值范围校验
    @DecimalMin(value = "15",message = "{user.age.min}",groups = {ValidationGroup1.class, ValidationGroup2.class})
    @DecimalMax(value = "30",message = "{user.age.max}",groups = {ValidationGroup1.class, ValidationGroup2.class})
    private Integer age;
    //非空校验
    @NotNull(message = "{user.email.notnull}")
    //邮箱格式校验
    @Email(message = "{user.email.pattern}")
    private String email;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    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;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", age=" + age +
                ", email='" + email + '\'' +
                '}';
    }
}

3.controller

package com.yl.validation.controller;

import com.yl.validation.model.User;
import com.yl.validation.validation.ValidationGroup1;
import com.yl.validation.validation.ValidationGroup2;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
public class UserController {
    @PostMapping("/addUser")
    public void addUser(@Validated(ValidationGroup2.class) User user, BindingResult result) {
        if (result != null && result.hasErrors()) {
            List allErrors = result.getAllErrors();
            for (ObjectError objectError : allErrors) {
                System.out.println(objectError.getDefaultMessage());
            }
        }
    }
}

4.ValidationMessages.Properties,手动新建放在resources目录下

user.username.size=用户名的长度应为3到8
user.password.notnull=密码不能为空
user.age.min=年龄最小值为15
user.age.max=年龄最大值为30
user.email.notnull=邮箱不能为空
user.email.pattern=邮箱格式不正确

5.组一

package com.yl.validation.validation;

public interface ValidationGroup1 {
}

6.组二

package com.yl.validation.validation;

public interface ValidationGroup2 {
}

7.测试结果，由于分了组，发现只有年龄校验有效！

到此这篇关于SpringBoot数据校验的文章就介绍到这了,更多相关SpringBoot数据校验内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！