Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (102)
JavaBeans (21)
JDBC (121)
JDK (426)
JSP (20)
Logging (108)
Mail (58)
Messaging (8)
Network (84)
PDF (97)
Report (7)
Scripting (84)
Security (32)
Server (121)
Servlet (26)
SOAP (24)
Testing (54)
Web (15)
XML (322)
Collections:
Other Resources:
MyUserToXml.java - Marshal Data Object to XML File
How to marshal data objects to XML files using JAXB API?
✍: FYIcenter.com
If you want to marshal data objects to XML files using JAXB API,
you can follow these suggestions:
1. Create a JAXBContext instance with the package name of the data type classes generated with the JAXB XJC tool:
JAXBContext c = JAXBContext.newInstance("com.fyicenter.demo");
2. Then create a Marshaller instance from the JAXBContext:
Marshaller m = c.createMarshaller();
3. Finally, marshal the data object with the Marshaller to an XML file. You can set JAXB_FORMATTED_OUTPUT property to true, if you want the output XML file to nicely formatted with line breaks.
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, new Boolean(true)); m.marshal(u,new FileOutputStream("UserOutput.xml"));
Here is the entire example program,
// Copyright (c) FYIcenter.com import com.fyicenter.demo.User; import com.fyicenter.demo.ObjectFactory; import javax.xml.datatype.DatatypeFactory; import javax.xml.datatype.XMLGregorianCalendar; import javax.xml.bind.JAXBContext; import javax.xml.bind.Marshaller; import java.io.*; public class MyUserToXml { public static void main(String[] args) throws Exception { XMLGregorianCalendar d = DatatypeFactory.newInstance() .newXMLGregorianCalendarDate(1970, 1, 1, 1); System.out.println("Create user object..."); ObjectFactory f = new ObjectFactory(); User u = f.createUser(); u.setName("Frank Y. Ivy"); u.setBirthDate(d); u.setSex("Male"); u.setID(101); System.out.println("Marshal user object to XML file..."); JAXBContext c = JAXBContext.newInstance("com.fyicenter.demo"); Marshaller m = c.createMarshaller(); m.marshal(u,new FileOutputStream("UserOutput.xml")); } }
Compile and run MyUserToXml.java as shown below.
fyicenter$ cd src fyicenter> java -cp .:../jaxb-ri/mod/jaxb-api.jar:\ ../jaxb-ri/mod/jaxb-runtime.jar:\ ../jaxb-ri/mod/istack-commons-runtime.jar:\ ../jaxb-ri/mod/javax.activation-api.jar \ MyUserToXml.java Note: MyUserToXml.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Create user objec... Marshal user objec to XML file... fyicenter$ more UserOutput.xml <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <User ID="101"> <BirthDate>1970-01-01+00:01</BirthDate> <Name>Frank Y. Ivy</Name> <Sex>Male</Sex> </User>
The output XML file looks good. It should match the XML schema defined in User.xsd.
If you are still using Java 8, the test also works.
fyicenter> \local\jdk-1.8.0\bin\javac MyUserToXml.java fyicenter> \local\jdk-1.8.0\bin\java MyUserToXml Create user objec... Marshal user objec to XML file... fyicenter> type UserOutput.xml <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <User ID="101"> <BirthDate>1970-01-01+00:01</BirthDate> <Name>Frank Y. Ivy</Name> <Sex>Male</Sex> </User>
⇒ MyXmlToUser.java - Unmarshal XML File to Data Object to
⇐ MyUserObject.java - Create Object from Data Type Class
2017-06-30, ∼1831🔥, 0💬
Popular Posts:
commons-io-1.4.jar is the JAR file for Commons IO 1.4, which is a library of utilities to assist wit...
What Is ojdbc14.jar for Oracle 10g R2? ojdbc14.jar for Oracle 10g R2 is the JAR files of ojdbc.jar, ...
If you are a Java developer, it is very often that you need to use some 3rd party libraries to perfo...
maven-core-3.8.6.jar is the JAR file for Apache Maven 3.8.6 Core module. Apache Maven is a software ...
JDK 17 jdk.jdi.jmod is the JMOD file for JDK 17 JDI (Java Debug Interface) tool. JDK 17 JDI tool com...