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JSR-303 Bean Validation - Conditional Validation
source link: http://www.blogjava.net/paulwong/archive/2021/02/25/435809.html
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JSR-303 Bean Validation - Conditional Validation
bean validation的注释是针对单个变量的，如果要针对多个变量的联动，则不行，需要用到这个注释。这种方法避免了自定义校验器而增加类。
https://www.chkui.com/article/java/java_bean_validation
@AssertTrue(message = "Missing BANK_CARD_IMG_INFO.IMG")
private Boolean getValidImg() {
if(YNEnum.Y.code.equals(super.getNeedChecked())) {
return StringUtils.hasText(this.img);
}
return null;//igore checking.
}
这个是当needChecked为Y的时候才执行检查img变量是否为空。private Boolean getValidImg() {
if(YNEnum.Y.code.equals(super.getNeedChecked())) {
return StringUtils.hasText(this.img);
}
return null;//igore checking.
}
有几点注意：
- 方法名称要以get开头
- 返回类型用Boolean，而不用boolean
- 返回值有三种：true,false,null如果是null则当成通过，与true的结果一样
posted on 2021-02-25 09:24 paulwong 阅读(71) 评论(0) 编辑 收藏 所属分类: J2SE 、SPRING 、SPRING BOOT 、Bean Validation
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