先定義兩個範例類ClassA,ClassB，後續的範例示範
package cn.lzrabbit; public class ClassA { private int classAId; private String classAName; private ClassB classB; public int getClassAId() { return classAId; } public void setClassAId(int classAId) { this.classAId = classAId; } public String getClassAName() { return classAName; } public void setClassAName(String classAName) { this.classAName = classAName; } public ClassB getClassB() { return classB; } public void setClassB(ClassB classB) { this.classB = classB; } } ClassA
package cn.lzrabbit; public class ClassB { private int classBId; private String classBName; public int getClassBId() { return classBId; } public void setClassBId(int classBId) { this.classBId = classBId; } public String getClassBName() { return classBName; } public void setClassBName(String classBName) { this.classBName = classBName; } } ClassB
用於序列化的XmlUtil
package cn.lzrabbit; import java.io.StringReader; import java.io.StringWriter; import javax.xml.bind.*; public class XmlUtil { public static String toXML(Object obj) { try { JAXBContext context = JAXBContext.newInstance(obj.getClass()); Marshaller marshaller = context.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");// //编码格式 marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);// 是否格式化生成的xml串 marshaller.setProperty(Marshaller.JAXB_FRAGMENT, false);// 是否省略xm头声明信息 StringWriter writer = new StringWriter(); marshaller.marshal(obj, writer); return writer.toString(); } catch (Exception e) { throw new RuntimeException(e); } } @SuppressWarnings("unchecked") public static T fromXML(String xml, Class valueType) { try { JAXBContext context = JAXBContext.newInstance(valueType); Unmarshaller unmarshaller = context.createUnmarshaller(); return (T) unmarshaller.unmarshal(new StringReader(xml)); } catch (Exception e) { throw new RuntimeException(e.getMessage()); } } } XmlUtil
呼叫
package cn.lzrabbit; public class MainRun { /** * @param args */ public static void main(String[] args) { ClassB classB = new ClassB(); classB.setClassBId(22); classB.setClassBName("B2"); ClassA classA = new ClassA(); classA.setClassAId(11); classA.setClassAName("A1"); classA.setClassB(classB); System.out.println(XmlUtil.toXML(classA)); } } MainRun
11 A1 22 B2
用於序列化的XmlUtil
@XmlRootElement(namespace="cn.lzrabbit") @XmlAccessorType(XmlAccessType.FIELD) public class ClassA { private int classAId; @XmlElement(name="ClassAName") private String classAName; private ClassB classB; public int getClassAId() { return classAId; } public void setClassAId(int classAId) { this.classAId = classAId; } public String getClassAName() { return classAName; } public void setClassAName(String classAName) { this.classAName = classAName; } public ClassB getClassB() { return classB; } public void setClassB(ClassB classB) { this.classB = classB; } } @XmlRootElement @XmlAccessorType(XmlAccessType.FIELD) public class ClassB { private int ClassBId; private String ClassBName; public int getClassBId() { return ClassBId; } public void setClassBId(int classBId) { this.ClassBId = classBId; } public String getClassBName() { return ClassBName; } public void setClassBName(String classBName) { this.ClassBName = classBName; } }
呼叫如下：
