SpringBoot

Posted 2021-08-18 梦想是咸鱼的博客

目录

• 前言
• 具体实现
  • Message模板配置
  • 模板参数配置

前言

jSR303参数校验可以查看之前的文章 SpringBoot - Bean validation 参数校验，这里介绍消息模板的配置。

具体实现

Message模板配置

• /resources/目录下新增ValidationMessages.properties文件(固定文件名)，配置Message

id.valid = id必须是正整数

• 全局异常处理器

import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import javax.servlet.http.HttpServletRequest;
import javax.validation.ConstraintViolationException;

/**
 * @Description 全局异常统一处理
 * @author coisini
 * @date Aug 9, 2021
 * @Version 1.0
 */
@ControllerAdvice
public class GlobalExceptionAdvice1 {

    /**
     * 注解校验异常处理器
     * @param req
     * @param e
     * @return
     */
    @ExceptionHandler(ConstraintViolationException.class)
    @ResponseStatus(code= HttpStatus.BAD_REQUEST)
    @ResponseBody
    public UnifyMessage handleConstraintException(HttpServletRequest req, ConstraintViolationException e){
        String requestUrl = req.getRequestURI();
        String method = req.getMethod();
        String message = e.getMessage();

        return new UnifyMessage(10001, message, method + " " + requestUrl);
    }

}

• 测试用例

@RestController
@RequestMapping("/vaild")
@Validated
public class ValidController {

    @GetMapping(value = "/test2/{id}")
    public Long test2(@PathVariable @Positive(message = "{id.valid}") Long id) {
        return id;
    }
    
}

• 测试结果

模板参数配置

这里自定义一个密码校验注解

• Password 校验注解

import javax.validation.Constraint;
import javax.validation.Payload;
import java.lang.annotation.*;

/**
 * @Description Password 校验注解
 * @author coisini
 * @date Aug 17， 2021
 * @Version 1.0
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.FIELD})
@Constraint(validatedBy = PasswordValidator.class )
public @interface PasswordValid {
    String message() default "字段不符合要求";

    int min() default 6;

    int max() default 32;

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};
}

• Password 校验关联类

import org.apache.commons.lang3.StringUtils;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

/**
 * @Description Password 校验关联类
 * @author coisini
 * @date Aug 17, 2021
 * @Version 1.0
 */
public class PasswordValidValidator implements ConstraintValidator<PasswordValid, String> {

    private Integer min;
    private Integer max;

    @Override
    public void initialize(PasswordValid constraintAnnotation) {
        this.min = constraintAnnotation.min();
        this.max = constraintAnnotation.max();
    }

    @Override
    public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
        if(StringUtils.isEmpty(s)){
            return true;
        }

        return s.length() >= this.min && s.length() <= this.max;
    }
}

• 消息模板配置

user.password = password参数错误：当前值是${validatedValue}；最大值应该是{max}，最小值应该是{min}

• 测试实体

import lombok.Getter;
import lombok.Setter;
import javax.validation.constraints.NotBlank;

@Getter
@Setter
public class User {

    @NotBlank(message = "account不允许为空")
    private String account;

    @PasswordValid(max=30, message = "{user.password}")
    private String password;

}

• 测试用例

@PostMapping(value = "/test3")
public void test3(@RequestBody @Validated User user) {

}

• 测试结果

- End - ﹀ ﹀ ﹀ 梦想是咸鱼 关注一下吧

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作者：梦想是咸鱼

出处：https://www.cnblogs.com/maggieq8324/

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