Question

我遇到一个问题，当XSD文件包含双打的默认值时，jaxb2-maven-plugin会生成无效的源代码。

我使用 jaxb2-maven-plugin（org.codehaus.mojo）版本1.5 ：

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>jaxb2-maven-plugin</artifactId>
    <version>1.5</version>
    <configuration>
    </configuration>
    <executions>
        <execution>
            <id>analysis_jaxb</id>
            <phase>generate-sources</phase>
            <goals>
                <goal>xjc</goal>
            </goals>
            <configuration>
                <clearOutputDir>false</clearOutputDir>
                <schemaFiles>Analysis.xsd</schemaFiles>
                <packageName>xx.xx.xx.analysis</packageName>
                <generateDirectory>${project.build.directory}/generated-sources/jaxb/analysis</generateDirectory>
                <verbose>true</verbose>
            </configuration>
        </execution>
    </executions>
</plugin>

从以下XSD文件生成Java Source：

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

    <xs:element name="MinMax" type="MinMaxType"/>

    <xs:complexType name="MinMaxType">
        <xs:attribute name="min" type="xs:double" default="-INF" />
        <xs:attribute name="max" type="xs:double" default="INF" />
    </xs:complexType>

</xs:schema>

生成的Java文件包含以下方法：

public double getMin() {
    if (min == null) {
        return -InfinityD; //UNDEFINED
    } else {
        return min;
    }
}

字段-InfinityD未在任何地方定义。

使用布尔值时（例如<xs:attribute name="minInclusive" type="xs:boolean" default="false" />），默认值会按预期工作。

与此相反，插件 org.jvnet.jaxb2.maven2（maven-jaxb2-plugin）会在有问题的行上写Double.POSITIVE_INFINITY。

这根本不受支持吗？我错过了参数吗？

Answer 1

使用此XSD ...

<xs:schema attributeFormDefault="unqualified"
    targetNamespace="yourNameSpace"
    xmlns:a="yourNameSpace"
    elementFormDefault="qualified" 
    xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xs:element name="MinMax" type="a:MinMaxType"/>

    <xs:complexType name="MinMaxType">
        <xs:attribute name="min" type="xs:double" default="-INF" />
        <xs:attribute name="max" type="xs:double" default="INF" />
    </xs:complexType>
</xs:schema>

如果您使用

<groupId>org.jvnet.jaxb2.maven2</groupId>
<artifactId>maven-jaxb2-plugin</artifactId>
<version>0.9.0</version>

工作正常

<强>输出：

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "MinMaxType")
public class MinMaxType {

    @XmlAttribute(name = "min")
    protected Double min;
    @XmlAttribute(name = "max")
    protected Double max;

    /**
     * Recupera il valore della proprietà min.
     * 
     * @return
     *     possible object is
     *     {@link Double }
     *     
     */
    public double getMin() {
        if (min == null) {
            return java.lang.Double.NEGATIVE_INFINITY;
        } else {
            return min;
        }
    }

    /**
     * Imposta il valore della proprietà min.
     * 
     * @param value
     *     allowed object is
     *     {@link Double }
     *     
     */
    public void setMin(Double value) {
        this.min = value;
    }

    /**
     * Recupera il valore della proprietà max.
     * 
     * @return
     *     possible object is
     *     {@link Double }
     *     
     */
    public double getMax() {
        if (max == null) {
            return java.lang.Double.POSITIVE_INFINITY;
        } else {
            return max;
        }
    }

    /**
     * Imposta il valore della proprietà max.
     * 
     * @param value
     *     allowed object is
     *     {@link Double }
     *     
     */
    public void setMax(Double value) {
        this.max = value;
    }

}

插件配置：

            <plugin>
                <groupId>org.jvnet.jaxb2.maven2</groupId>
                <artifactId>maven-jaxb2-plugin</artifactId>
                <version>0.9.0</version>
                <executions>
                    <execution>
                        <id>commun-generate</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <generateDirectory>${basedir}/src/main/java/</generateDirectory>
                            <schemaDirectory>${basedir}/src/main/resources/schema/xsd</schemaDirectory>
                            <strict>true</strict>
                            <extension>true</extension>
                            <verbose>true</verbose>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

使用jaxb2-maven-plugin

插件配置：

           <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>jaxb2-maven-plugin</artifactId>
                <version>1.6</version>
                <configuration>
                </configuration>
                <executions>
                    <execution>
                        <id>analysis_jaxb</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>xjc</goal>
                        </goals>
                        <configuration>
                            <clearOutputDir>false</clearOutputDir>
                            <schemaFiles>your.xsd</schemaFiles>
                            <packageName>xx.xx.xx.analysis</packageName>
                            <generateDirectory>generated-sources/jaxb/analysis</generateDirectory>
                            <verbose>true</verbose>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

<强>输出

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "MinMaxType")
public class MinMaxType {

    @XmlAttribute(name = "min")
    protected Double min;
    @XmlAttribute(name = "max")
    protected Double max;

    /**
     * Recupera il valore della proprietà min.
     * 
     * @return
     *     possible object is
     *     {@link Double }
     *     
     */
    public double getMin() {
        if (min == null) {
            return java.lang.Double.NEGATIVE_INFINITY;
        } else {
            return min;
        }
    }

    /**
     * Imposta il valore della proprietà min.
     * 
     * @param value
     *     allowed object is
     *     {@link Double }
     *     
     */
    public void setMin(Double value) {
        this.min = value;
    }

    /**
     * Recupera il valore della proprietà max.
     * 
     * @return
     *     possible object is
     *     {@link Double }
     *     
     */
    public double getMax() {
        if (max == null) {
            return java.lang.Double.POSITIVE_INFINITY;
        } else {
            return max;
        }
    }

    /**
     * Imposta il valore della proprietà max.
     * 
     * @param value
     *     allowed object is
     *     {@link Double }
     *     
     */
    public void setMax(Double value) {
        this.max = value;
    }

}

jaxb2-maven-plugin为默认值= INF的双精度生成无效源

1 个答案: