XStream处理JSON

XStream支持JSON通过初始化XStream对象适当的驱动程序。 XStream目前支持JettisonMappedXmlDriver和JsonHierarchicalStreamDriver。

现在，让我们使用XStream处理JSON的代码测试。

创建一个Java类名为XStreamTester文件在 C:\>XStream_WORKSPACE\com656463\xstream.

File: XStreamTester.java

package com656463.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+ " ]";
}
}

验证结果

使用javac编译器编译如下类：

C:\XStream_WORKSPACE\com656463\xstream>javac XStreamTester.java

现在运行XStreamTester看到的结果：

C:\XStream_WORKSPACE\com656463\xstream>java XStreamTester

验证输出

{
  "firstName": "Mahesh",
  "lastName": "Parashar"
}