我正在尝试编写一个监视系统,该监视系统允许提供外部系统状态的状态...通过ping服务器,查看日志元素,查询数据库,访问Web服务等。由于每个应用程序都有独特的行为,因此监视系统需要保持灵活性,以使监视器最适合这些行为。
这是XSD的一部分,用于创建“ Test”类,该类允许用户构建监视器:
<xs:element name="Test">
<xs:complexType>
<xs:sequence maxOccurs="unbounded" >
<xs:element ref="Ping"/>
<xs:element ref="CheckWebService"/>
<xs:element ref="CheckDB"/>
<xs:element ref="ExecuteScript"/>
<xs:element ref="CheckJMS"/>
<xs:element ref="CheckLog" />
</xs:sequence>
<xs:attribute name="testTitle"/>
</xs:complexType>
</xs:element>
通过XJC(通过Maven JAXB插件)运行会产生:
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"pingsAndCheckLogsAndCheckJMs"
})
@XmlRootElement(name = "Test")
public class Test
implements Serializable
{
private final static long serialVersionUID = 1L;
@XmlElements({
@XmlElement(name = "Ping", required = true, type = Ping.class),
@XmlElement(name = "CheckLog", required = true, type = CheckLog.class),
@XmlElement(name = "CheckJMS", required = true, type = CheckJMS.class),
@XmlElement(name = "ExecuteScript", required = true, type = ExecuteScript.class),
@XmlElement(name = "CheckDB", required = true, type = CheckDB.class),
@XmlElement(name = "CheckWebService", required = true, type = CheckWebService.class)
})
protected List<Serializable> pingsAndCheckLogsAndCheckJMs;
@XmlAttribute(name = "testTitle")
@XmlSchemaType(name = "anySimpleType")
protected String testTitle;
public List<Serializable> getPingsAndCheckLogsAndCheckJMs() {
if (pingsAndCheckLogsAndCheckJMs == null) {
pingsAndCheckLogsAndCheckJMs = new ArrayList<Serializable>();
}
return this.pingsAndCheckLogsAndCheckJMs;
}
public String getTestTitle() {
return testTitle;
}
public void setTestTitle(String value) {
this.testTitle = value;
}
}
我的问题是,我该如何重命名 pingsAndCheckLogsAndCheckJMs 方法,因为每次我添加新的测试类型(Ping / CherckDB / CheckLog ...)时,此方法名称都会更改,并且编组对象时的XML标记也很丑陋。
答案 0 :(得分:0)
您需要指定绑定以显式命名属性。
这是内联的示例。有关更多信息,请参见SYSTEM_ALERT_WINDOW。
摘要:您需要向<xs:schema>
元素添加2个属性:
<xs:schema ...
xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
jxb:version="1.0">
以及<xs:sequence>
元素中的以下内容,当然会将该属性命名为您认为合适的名称:
<xs:sequence maxOccurs="unbounded">
<xs:annotation>
<xs:appinfo>
<jxb:property name="foo"/>
</xs:appinfo>
</xs:annotation>
...
以下完整的Customizing JAXB Bindings(MCVE):
XSD文件
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema version="1.0" targetNamespace="http://example.com/test"
xmlns="http://example.com/test"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
jxb:version="1.0">
<xs:element name="Test">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:annotation>
<xs:appinfo>
<jxb:property name="foo"/>
</xs:appinfo>
</xs:annotation>
<xs:element ref="Ping"/>
<xs:element ref="CheckLog"/>
</xs:sequence>
<xs:attribute name="testTitle"/>
</xs:complexType>
</xs:element>
<xs:element name="Ping">
<xs:complexType>
<xs:sequence>
</xs:sequence>
<xs:attribute name="action" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="CheckLog">
<xs:complexType>
<xs:sequence>
</xs:sequence>
<xs:attribute name="action" type="xs:string"/>
</xs:complexType>
</xs:element>
</xs:schema>
测试
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import com.example.test.CheckLog;
import com.example.test.Ping;
import com.example.test.Test;
public class Test8 {
public static void main(String[] args) throws Exception {
Test root = new Test();
root.setTestTitle("My title");
root.getFoo().add(newPing("ping 1"));
root.getFoo().add(newCheckLog("check log 1"));
root.getFoo().add(newPing("ping 2"));
JAXBContext jaxbContext = JAXBContext.newInstance(Test.class);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
marshaller.marshal(root, System.out);
}
private static Ping newPing(String action) {
Ping obj = new Ping();
obj.setAction(action);
return obj;
}
private static CheckLog newCheckLog(String action) {
CheckLog obj = new CheckLog();
obj.setAction(action);
return obj;
}
}
输出
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Test xmlns="http://example.com/test" testTitle="My title">
<Ping action="ping 1"/>
<CheckLog action="check log 1"/>
<Ping action="ping 2"/>
</Test>
如您所见,该方法现在命名为getFoo()
,并且所生成的XML中没有难看的东西。
以上操作是使用jdk1.8.0_151完成的。