@Validated不生效的问题

Spring Boot验证不生效：迁移依赖与解决策略

原创于 2022-02-10 17:10:37 发布 · 2k 阅读

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文章标签：

#java #mybatis #spring boot

在维护项目时，遇到@Validated注解失效的问题。原项目依赖于旧版validation-api，需升级到spring-boot-starter-validation。关键在于确认Web启动器不再默认包含Validation Starter，需手动添加。解决过程涉及依赖解析和配置调整。

维护别人的项目的时候遇到一个问题，@Validated怎么都不生效

解决：

老项目使用的

<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>2.0.1.Final</version>
</dependency>

修改成

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-validation</artifactId>
</dependency>

原因是依赖没有被解析

Validation Starter no longer included in web starters
As of #19550, Web and WebFlux starters do not depend on the validation starter by default anymore. If your application is using validation features, for example you find that javax.validation.* imports are not being resolved, you'll need to add the starter yourself. For Maven builds, you can do that with the following: