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XStream supports JSON by initializing XStream object with an appropriate driver. XStream currently supports JettisonMappedXmlDriver and JsonHierarchicalStreamDriver.
Let us now test the code with json handling in XStream.
Create a java class file named XStreamTester in C:>XStream_WORKSPACEcomtutorialspointxstream.
File: XStreamTester.java
package com.tutorialspoint.xstream; import java.io.Writer; import com.thoughtworks.xstream.XStream; import com.thoughtworks.xstream.annotations.XStreamAlias; import com.thoughtworks.xstream.io.HierarchicalStreamWriter; import com.thoughtworks.xstream.io.json.JsonHierarchicalStreamDriver; import com.thoughtworks.xstream.io.json.JsonWriter; public class XStreamTester { public static void main(String args[]) { XStreamTester tester = new XStreamTester(); XStream xstream = new XStream(new JsonHierarchicalStreamDriver() { public HierarchicalStreamWriter createWriter(Writer writer) { return new JsonWriter(writer, JsonWriter.DROP_ROOT_MODE); } }); Student student = new Student("Mahesh","Parashar"); xstream.setMode(XStream.NO_REFERENCES); xstream.alias("student", Student.class); System.out.println(xstream.toXML(student)); } } @XStreamAlias("student") class Student { private String firstName; private String lastName; public Student(String firstName, String lastName) { this.firstName = firstName; this.lastName = lastName; } public String getFirstName() { return firstName; } public String getLastName() { return lastName; } public String toString() { return "Student [ firstName: "+firstName+", lastName: "+ lastName+ " ]"; } }
Verify the Result
Compile the classes using javac compiler as follows −
C:XStream_WORKSPACEcomtutorialspointxstream>javac XStreamTester.java
Now run the XStreamTester to see the result −
C:XStream_WORKSPACEcomtutorialspointxstream>java XStreamTester
Verify the output as follows −
{ "firstName": "Mahesh", "lastName": "Parashar" }
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