当使用JAXB生成Java类时，如何向每个类添加自定义字段？

Question

我正在使用JAXB xjc命令行工具将XML模式（.xsd文件）转换为Java对象。

以下是我的.xsd文件的内容：

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:element name="ownerDog">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="owner" type="xs:string" />
            <xs:element name="dog" type="xs:string"/>
            <xs:element name="toy" type="toyType"/>
        </xs:sequence>
    </xs:complexType>
</xs:element>

<xs:complexType name="toyType">
    <xs:sequence>
        <xs:element name="color" type="xs:string" />
        <xs:element name="price" type="xs:integer" />
    </xs:sequence>
</xs:complexType>

</xs:schema>

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "toyType", propOrder = {
    "color",
    "price"
})
public class ToyType {

    @XmlElement(required = true)
    protected String color;
    @XmlElement(required = true)
    protected BigInteger price;

    public String getColor() {
        return color;
    }

    public void setColor(String value) {
        this.color = value;
    }

    public BigInteger getPrice() {
        return price;
    }

    public void setPrice(BigInteger value) {
        this.price = value;
    }

}

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "toyType", propOrder = {
    "color",
    "price"
})
public class ToyType {

    private BookKeeper bk;

    @XmlElement(required = true)
    protected String color;
    @XmlElement(required = true)
    protected BigInteger price;

    public String getColor() {
        return color;
    }

    public void setColor(String value) {
        this.color = value;
    }

    public BigInteger getPrice() {
        return price;
    }

    public void setPrice(BigInteger value) {
        this.price = value;
    }

}

我无法修改原始的。xsd文件，我需要修改它才能用于多个尚未看到的。xsd文件。

Answer 1

它有点混乱，但我能够通过一个小的bash脚本完成：

xjc -p com.company.ustruc_to_xml OwnerDog.xsd
cd ./com/company/ustruc_to_xml
for f in *.java; do sed -i 's/\(^public class .*$\)/\1\n\n    private BookKeeper bk;/' $f; done
cp *.java /Users/car/Documents/workspace/proj_ustruc_to_xml/src/com/ibm/ustruc_to_xml