JAXB提供空XML元素作为< xmlelement/>并删除命名空间名称 [英] JAXB Provide Empty XML Element as <xmlelement/> And Remove Namespace Name
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问题描述
我正在编写一个实用程序，用于在内部系统和第三方产品之间进行集成.我正在尝试生成一个可以由第三方产品加载的xml文件，但是我很难完全按照他们的要求来生成xml.我创建了一个简化版本，仅供测试.
I am writing a utility to integrate between an internal system and a third party product. I am trying to produce an xml file that can be loaded by the third party product but I am having trouble getting the xml to be produced exactly as they require it to be. I have created a simplified version just for testing.
预期输出应如下:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Programme xmlns="http://www.awebsite.co.uk/ns/">
<Editorial>
<SeriesTitle>Series 1</SeriesTitle>
<ProgrammeTitle>Test Programme</ProgrammeTitle>
<EpisodeTitleNumber>Episode 1</EpisodeTitleNumber>
<ProductionNumber/>
<Synopsis/>
<Originator/>
<CopyrightYear/>
</Editorial>
<Technical>
<ShimName/>
<ShimVersion>1.0</ShimVersion>
<ContactInformation>
<ContactEmail/>
<ContactTelephoneNumber/>
</ContactInformation>
</Technical>
</Programme>
我得到的输出如下:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns2:Programme xmlns:ns2="http://www.awebsite.co.uk/ns/">
<Editorial>
<SeriesTitle>Series 1</SeriesTitle>
<ProgrammeTitle>Test Programme</ProgrammeTitle>
<EpisodeTitleNumber>Episode 1</EpisodeTitleNumber>
<ProductionNumber xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
<Synopsis xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
<Originator xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
<CopyrightYear xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
</Editorial>
<Technical>
<ShimName xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
<ShimVersion>1.0</ShimVersion>
<ContactInformation>
<ContactEmail xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
<ContactTelephoneNumber xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
</ContactInformation>
</Technical>
</ns2:Programme>
我无法理解的2个方面是名称空间分配了一个值，而null标签在不添加以下内容的情况下会自动关闭:xmlns:xsi ="http://www.w3.org/2001 /XMLSchema-instance"xsi:nil =" true.我已经尝试过空标签，但是它们被视为无效的xml而被拒绝.
The 2 areas that I can't get right is the namespace having a value assigned to it and the null tags being self closing without the addition of: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true". I have tried empty tags but they get rejected as invalid xml.
我的代码如下:
主要:
public class TestXMLBuilder {
public static void main (String ... args) {
File file = new File("myxmltest.xml");
JAXBContext jaxbContext;
Editorial editorial = new Editorial();
editorial.setProgrammeTitle("Test Programme");
editorial.setEpisodeTitleNumber("Episode 1");
editorial.setSeriesTitle("Series 1");
Programme programme = new Programme();
programme.setEditorial(editorial);
try {
jaxbContext = JAXBContext.newInstance(Programme.class);
Marshaller marshaller = jaxbContext.createMarshaller();
// output pretty printed
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(programme, file);
marshaller.marshal(programme, System.out);
} catch (JAXBException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
程序类:
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name = "Programme", namespace = "http://www.awebsite.co.uk/ns/")
@XmlAccessorType(XmlAccessType.FIELD)
public class Programme {
@XmlElement(name = "Editorial", required = true)
private Editorial editorial = new Editorial();
@XmlElement(name = "Technical", required = true)
private Technical technical = new Technical();
/**
* @return the editorial
*/
public Editorial getEditorial() {
return editorial;
}
/**
* @param editorial the editorial to set
*/
public void setEditorial(Editorial editorial) {
this.editorial = editorial;
}
/**
* @return the technical
*/
public Technical getTechnical() {
return technical;
}
/**
* @param technical the technical to set
*/
public void setTechnical(Technical technical) {
this.technical = technical;
}
}
编辑类:
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name = "Editorial")
@XmlAccessorType(XmlAccessType.FIELD)
public class Editorial {
@XmlElement(name = "SeriesTitle", required = true, nillable = true)
private String seriesTitle = null;
@XmlElement(name = "ProgrammeTitle", required = true, nillable = true)
private String programmeTitle = null;
@XmlElement(name = "EpisodeTitleNumber", required = true, nillable = true)
private String episodeTitleNumber = null;
@XmlElement(name = "ProductionNumber", required = true, nillable = true)
private String productionNumber = null;
@XmlElement(name = "Synopsis", required = true, nillable = true)
private String synopsis = null;
@XmlElement(name = "Originator", required = true, nillable = true)
private String originator = null;
@XmlElement(name = "CopyrightYear", required = true, nillable = true)
private String copyrightYear = null;
/**
* @return the seriesTitle
*/
public String getSeriesTitle() {
return seriesTitle;
}
/**
* @param seriesTitle the seriesTitle to set
*/
public void setSeriesTitle(String seriesTitle) {
this.seriesTitle = seriesTitle;
}
/**
* @return the programmeTitle
*/
public String getProgrammeTitle() {
return programmeTitle;
}
/**
* @param programmeTitle the programmeTitle to set
*/
public void setProgrammeTitle(String programmeTitle) {
this.programmeTitle = programmeTitle;
}
/**
* @return the episodeTitleNumber
*/
public String getEpisodeTitleNumber() {
return episodeTitleNumber;
}
/**
* @param episodeTitleNumber the episodeTitleNumber to set
*/
public void setEpisodeTitleNumber(String episodeTitleNumber) {
this.episodeTitleNumber = episodeTitleNumber;
}
/**
* @return the productionNumber
*/
public String getProductionNumber() {
return productionNumber;
}
/**
* @param productionNumber the productionNumber to set
*/
public void setProductionNumber(String productionNumber) {
this.productionNumber = productionNumber;
}
/**
* @return the synopsis
*/
public String getSynopsis() {
return synopsis;
}
/**
* @param synopsis the synopsis to set
*/
public void setSynopsis(String synopsis) {
this.synopsis = synopsis;
}
/**
* @return the originator
*/
public String getOriginator() {
return originator;
}
/**
* @param originator the originator to set
*/
public void setOriginator(String originator) {
this.originator = originator;
}
/**
* @return the copyrightYear
*/
public String getCopyrightYear() {
return copyrightYear;
}
/**
* @param copyrightYear the copyrightYear to set
*/
public void setCopyrightYear(String copyrightYear) {
this.copyrightYear = copyrightYear;
}
}
技术等级:
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name = "Technical")
@XmlAccessorType(XmlAccessType.FIELD)
public class Technical {
@XmlElement(name = "ShimName", required = true, nillable = true)
private String shimName = null;
@XmlElement(name = "ShimVersion", required = true, nillable = true)
private String shimVersion = "1.0";
@XmlElement(name = "ContactInformation", required = true, nillable = true)
private ContactInformation contactInformation = new ContactInformation();
}
ContactInformation类:
ContactInformation Class:
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name = "ContactInformation")
@XmlAccessorType(XmlAccessType.FIELD)
public class ContactInformation {
@XmlElement(name = "ContactEmail", required = true, nillable = true)
private String contactEmail = null;
@XmlElement(name = "ContactTelephoneNumber", required = true, nillable = true)
private String contactTelephoneNumber = null;
/**
* @return the contactEmail
*/
public String getContactEmail() {
return contactEmail;
}
/**
* @param contactEmail the contactEmail to set
*/
public void setContactEmail(String contactEmail) {
this.contactEmail = contactEmail;
}
/**
* @return the contactTelephoneNumber
*/
public String getContactTelephoneNumber() {
return contactTelephoneNumber;
}
/**
* @param contactTelephoneNumber the contactTelephoneNumber to set
*/
public void setContactTelephoneNumber(String contactTelephoneNumber) {
this.contactTelephoneNumber = contactTelephoneNumber;
}
}
推荐答案
不幸的是，我最终不得不按如下所述操作(破解)xml:
Unfortunately, I ended up having to manipulate(hack) the xml as follows:
StringWriter stringWriter = new StringWriter();
marshaller.marshal(programme, stringWriter);
String xmlContent = stringWriter.toString();
xmlContent = xmlContent.replaceAll("xsi:nil=\"true\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"", "");
xmlContent = xmlContent.replaceAll("</ns2:", "</");
xmlContent = xmlContent.replaceAll(":ns2=", "=");
xmlContent = xmlContent.replaceAll("<ns2:", "<");
result = xmlContent;
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