javax.validation.UnexpectedTypeException: No validator could be found for type: java.lang.Integer

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Apr 8, 2014 2:13:57 PM org.apache.catalina.core.StandardWrapperValve invokeSEVERE: Servlet.service() for servlet springmvc threw exceptionjavax.validation.UnexpectedTypeException: No validator could be found for type: java.lang.Integerat org.hibernate.validator.engine.ConstraintTree.verifyResolveWasUnique(ConstraintTree.java:383)at org.hibernate.validator.engine.ConstraintTree.findMatchingValidatorClass(ConstraintTree.java:364)at org.hibernate.validator.engine.ConstraintTree.getInitializedValidator(ConstraintTree.java:313)at org.hibernate.validator.engine.ConstraintTree.validateConstraints(ConstraintTree.java:144)at org.hibernate.validator.engine.ConstraintTree.validateComposingConstraints(ConstraintTree.java:233)at org.hibernate.validator.engine.ConstraintTree.validateConstraints(ConstraintTree.java:128)at org.hibernate.validator.engine.ConstraintTree.validateConstraints(ConstraintTree.java:117)at org.hibernate.validator.metadata.MetaConstraint.validateConstraint(MetaConstraint.java:84)at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:452)

使用hibernate validator出现上面的错误，需要注意

@NotNull 和 @NotEmpty 和@NotBlank 区别

@NotEmpty 用在集合类上面
@NotBlank 用在String上面
@NotNull 用在基本类型上

如果在基本类型上面用NotEmpty或者NotBlank 会出现上面的错

转载来自——DracoTianlong

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