java – Hibernate Validator EL表达式不起作用

我写了一个关于Hibernate Validator的简单例子,参考官方文档.

Car.java的代码片段如下：

@Size(min = 2, max = 14, message = "The license plate '${validatedValue}' must be between {min} and {max} characters long")
private String licensePlate;

@Min(value = 2, message = "There must be at least {value} seat${value > 1 ? 's' : ''}")
private int seatCount;

@DecimalMax(value = "350", message = "The top speed ${formatter.format('%1$.2f', validatedValue)} is higher "
        + "than {value}")
private double topSpeed;

CarTest.java的代码片段如下：

@Test
public void licensePlateTest()
{
    Car car = new Car( null, "A", 1, 400.123456, BigDecimal.valueOf( 200000 ) );
    String message = validator.validateProperty( car, "licensePlate" )
            .iterator()
            .next()
            .getMessage();
    assertEquals(
            "The license plate must be between 2 and 14 characters long",
            message
    );
}

@Test
public void seatCountTest()
{
    Car car = new Car( null, "A", 1, 400.123456, BigDecimal.valueOf( 200000 ) );
    String message = validator.validateProperty( car, "seatCount" ).iterator().next().getMessage();
    assertEquals( "There must be at least 2 seats", message );
}

licensePlate的验证消息是：“牌照’${validatedValue}’的长度必须在2到14个字符之间.”

seatCount的验证消息是：“必须至少有2个座位${value> 1？’s’：”}.”

我们可以看到,EL表达式无效.关于我的项目的pom.xml是：

<!-- Hibernate Validator -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>4.3.1.Final</version>
    </dependency>

    <dependency>
        <groupId>javax.el</groupId>
        <artifactId>javax.el-api</artifactId>
        <version>2.2.4</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.web</groupId>
        <artifactId>javax.el</artifactId>
        <version>2.2.4</version>
    </dependency>

我不知道为什么它不起作用,有人可以帮助我吗？谢谢.

解决方法:

您正在使用Hibernate Validator 4.x版本,该版本与Bean Validation 1.0一致.在4.x版本中,使用表达式语言(EL)的变量插值不可用.这是添加到Bean Validation 1.1的功能,因此可以在Hibernate Validator 5.x系列中使用.最新的稳定版本是5.1.3.Final.我建议你升级到那个版本.

标签：java,hibernate,hibernate-validator
来源： https://codeday.me/bug/20190628/1317877.html