封装类Attribute：

public class Attribute {

    private int id;

    private String name;

    private int age;

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public int getAge() {

        return age;

    }

    public void setAge(int age) {

        this.age = age;

    }

}

另一个封装类GsonDataAnalysis：

public class GsonDataAnalysis {

    private List<Attribute> list;

    public List<Attribute> getList() {

        return list;

    }

    public void setList(List<Attribute> list) {

        this.list = list;

    }

}

测试类Main方法：

/**

 * Gson解析json数据

 * @author ForeverLover

 * @version 2015-04-19

 */

public class GsonTest {

        public static void main(String[] args) {

            String sTotalString = "{\"list\": [" +

                    "{\"id\":\"1\",\"name\":\"Tom\",\"age\":\"12\"}," +

                    "{\"id\":\"2\",\"name\":\"Marry\",\"age\":\"18\"}" +

                "]}";

            Gson gson = new Gson();

            GsonDataAnalysis gda = gson.fromJson(

                    sTotalString, GsonDataAnalysis.class);

            for(int i = 0; i < gda.getList().size(); i ++) {

                System.out.print("ID号：" + gda.getList().get(i).getId() + " ");

                System.out.print("姓 名：" + gda.getList().get(i).getName() + " ");

                System.out.println("年 龄：" + gda.getList().get(i).getAge());

            }

        }

}