Add Unmarshaller method

src/main/java/com/example/demo/lesson15/Employe2.java

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+package com.example.demo.lesson15;
+
+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= "Employee")
+public class Employe2 {
+
+	@XmlElement
+	private String id;
+	@XmlElement
+	private String name;
+	@Override
+	public String toString() {
+		return "Employee [id=" + id + ", name=" + name + "]";
+	}
+
+}

src/main/java/com/example/demo/lesson15/Note.java

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+package com.example.demo.lesson15;
+
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement
+public class Note {
+
+	private String to;
+	private String from;
+	private String heading;
+	private String body;
+	@Override
+	public String toString() {
+		return "Note [to=" + to + ", from=" + from + ", heading=" + heading + ", body=" + body + "]";
+	}
+}

src/test/java/com/example/demo/lesson15/SerilalizerSimple.java

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+package com.example.demo.lesson15;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringReader;
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.transform.stream.StreamSource;
+
+import org.junit.Ignore;
+import org.junit.Test;
+
+public class SerilalizerSimple {
+
+	@Test
+	@Ignore
+	public void test1() throws JAXBException {
+		JAXBContext context = JAXBContext.newInstance(Employee.class);
+		Unmarshaller unmarshaller = context.createUnmarshaller();
+		Employee employee = (Employee)unmarshaller.unmarshal(new File("./src/test/resources/lesson15.xml"));
+		System.out.println(employee);//Employee [id=111, name=Test]
+	}
+
+	@Test
+	@Ignore
+	public void test11() throws JAXBException {
+		JAXBContext context = JAXBContext.newInstance(Employee.class);
+		Unmarshaller unmarshaller = context.createUnmarshaller();
+		Employee employee = (Employee)unmarshaller.unmarshal(SerilalizerSimple.class.getResourceAsStream("/lesson15.xml"));
+		System.out.println(employee);//Employee [id=111, name=Test]
+	}
+
+	@Test
+	public void test2() throws JAXBException, IOException {
+		JAXBContext context = JAXBContext.newInstance(Employee.class);
+		Unmarshaller unmarshaller = context.createUnmarshaller();
+		InputStream is = new FileInputStream("./src/test/resources/lesson15.xml");
+		Employee employee = (Employee)unmarshaller.unmarshal(is);
+		System.out.println(employee);//Employee [id=111, name=Test]
+	}
+	@Test
+	public void test3() throws JAXBException, IOException {
+		JAXBContext context = JAXBContext.newInstance(Note.class);
+		Unmarshaller unmarshaller = context.createUnmarshaller();
+		URL url = new URL("http://www.w3school.com.cn/example/xmle/note.xml");
+		System.out.println(url);
+		Note note = (Note)unmarshaller.unmarshal(url);
+		System.out.println(note);//Note [to=null, from=null, heading=null, body=null]
+	}
+	@Test
+	public void test4() throws JAXBException, IOException {
+		JAXBContext context = JAXBContext.newInstance(Employee.class);
+		Unmarshaller unmarshaller = context.createUnmarshaller();
+		String xmlStr = "<Employee><id>1504</id><name>Test</name></Employee>";
+		Employee employee = (Employee)unmarshaller.unmarshal(new StreamSource(new StringReader(xmlStr)));
+		System.out.println(employee);//Employee [id=1504, name=Test]
+	}
+
+	@Test
+	public void test2X() throws JAXBException {
+		String xmlStr = "<Employee><id>111</id><name>Test</name></Employee>";
+		JAXBContext context = JAXBContext.newInstance(Note.class);
+		Unmarshaller unmarshaller = context.createUnmarshaller();
+		Employee employee = (Employee)unmarshaller.unmarshal(System.in);
+		System.out.println(employee);//Employee [id=111, name=Test]
+	}
+
+
+}

src/test/resources/lesson15.xml

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Employee>
+    <id>111</id>
+    <name>Test</name>
+</Employee>