XStream - 使用 XStream 编写 JSON

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  简述

  XStream 通过使用适当的驱动程序初始化 XStream 对象来支持 JSON。XStream 目前支持 JettisonMappedXmlDriver 和 JsonHierarchicalStreamDriver。

  现在让我们用 XStream 中的 json 处理来测试代码。

  在 C:\>XStream_WORKSPACE\com\jc2182\xstream 中创建一个名为 XStreamTester 的 java 类文件。
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  文件：XStreamTester.java

  
  package com.jc2182.xstream;
  import java.io.Writer;
  import com.thoughtworks.xstream.XStream;
  import com.thoughtworks.xstream.annotations.XStreamMooas;
  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));
     }
  }
  @XStreamMooas("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+ " ]";
     }    
  }
  

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  验证结果

  使用编译类 javac 编译器如下 -

  
  C:\XStream_WORKSPACE\com\jc2182\xstream>javac XStreamTester.java
  

  现在运行 XStreamTester 以查看结果 -

  
  C:\XStream_WORKSPACE\com\jc2182\xstream>java XStreamTester
  

  验证输出如下 -

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