簡單易用的java後臺數據驗證

    

//下載導入包-------------------------------------------------------------------
<dependencies>
     <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>5.1.3.Final</version>
    </dependency>
    <dependency>
        <groupId>javax.el</groupId>
        <artifactId>el-api</artifactId>
        <version>1.0</version>
    </dependency>
</dependencies>


//bean的標籤用法------------------------------------------------------------
private String id;//主鍵id
@NotNull(message = "身份證不能爲空")
@Size(min = 15, max = 18, message = "身份證長度15-18位")
private String idcard;//身份證號碼
private String name;//姓名


//引入包--------------------------------------------------------------------
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;


//後臺java獲取字段校驗後信息------------------------------------------------------------
ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
Validator validator = factory.getValidator();
Set<ConstraintViolation<InfoApplyVo>> constraintViolations = validator.validate(paramVo);
for (ConstraintViolation constraintViolation : constraintViolations) {
    msg = msg+"["+constraintViolation.getMessageTemplate()+"]";
}

 

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