Bean 验证约束模式:匹配 N 位正则表达式在 XML 中不起作用

Bean validation constraint Pattern: match N digits regexp not working in XML

Bean 验证约束模式(匹配 N 位正则表达式)如果在 XML 中指定则不起作用。例如,

public class Foo {
    @Pattern(regexp="\d{10}")
    private String phoneNumber;
}

phoneNumber: 1234567890

注释有效。

XML:

<bean class="Foo">
        <field name="phoneNumber">
            <constraint annotation="javax.validation.constraints.Pattern">
                <element name="regexp">\d{10}</element>
            </constraint>
        </field>
</bean>

错误:

javax.validation.ConstraintViolationException: phoneNumber: must match the following regular expression: \d{10}

如果将模式更改为:

 <element name="regexp">\d{10}</element>

错误:

java.util.IllegalFormatConversionException: d != java.lang.String
    at java.util.Formatter$FormatSpecifier.failConversion(Formatter.java:4302)
    at java.util.Formatter$FormatSpecifier.printInteger(Formatter.java:2793)
    at java.util.Formatter$FormatSpecifier.print(Formatter.java:2747)
    at java.util.Formatter.format(Formatter.java:2520)
    at java.util.Formatter.format(Formatter.java:2455)
    at java.lang.String.format(String.java:2940)
    at org.apache.bval.util.Exceptions.lambda$create(Exceptions.java:49)
    at org.apache.bval.util.Exceptions.create(Exceptions.java:58)
    at org.apache.bval.util.Exceptions.create(Exceptions.java:49)
    at org.apache.bval.jsr.metadata.XmlBuilder.loadClass(XmlBuilder.java:531)
    at java.util.stream.ReferencePipeline.accept(ReferencePipeline.java:193)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:545)
    at java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260)

@Pattern(regexp="\d{10}") 的 XML 是什么?

我不知道正则表达式的风格是什么,但是,如果 \d 不起作用,我认为 [0-9] 会起作用。

使用:

[0-9]{10}

而不是\d{10}