JSONObject和JSONArray

package com.test;import java.util.ArrayList;import java.util.List;import org.junit.Test;import net.sf.json.JSONArray;import net.sf.json.JSONObject;/** *  * @author Cherry * @date 2017年10月16日 * */public class JsonTest {    /**     * Java Object to Json     */    @Test    public void show() {        List<Music> list = new ArrayList<Music>();        for (int i = 0; i < 10; i++) {            Music m = new Music(i, "海韵" + i, "邓丽君");            list.add(m);        }        // Object to Json        JSONObject js = JSONObject.fromObject(new Music("海韵", "邓丽君"));        System.out.println(js.toString());        System.out.println(js.getInt("id") + "-->" + js.getString("name") + "-->" + js.getString("singer"));        ;        // List to Json        JSONArray ja = JSONArray.fromObject(list);        System.out.println(ja.toString());        System.out.println(ja.get(0));    }    /**     * add content to Json     */    @Test    public void show2() {        JSONObject js = new JSONObject();        js.put(1, new Music(30, "海韵", "邓丽君"));        js.put(2, new Student(30, "Chen", "chen"));        System.out.println(js.toString());        System.out.println(js.get("1"));    }}

json-lib需要commons-beanutils-1.8.0.jar、commons-collections-3.2.1.jar、commons-lang-2.5.jar、commons-logging-1.1.1.jar、ezmorph-1.0.6.jar五个包的支持

show()执行的结果

{"id":0,"name":"海韵","singer":"邓丽君"}0-->海韵-->邓丽君[{"id":0,"name":"海韵0","singer":"邓丽君"},{"id":1,"name":"海韵1","singer":"邓丽君"},{"id":2,"name":"海韵2","singer":"邓丽君"},{"id":3,"name":"海韵3","singer":"邓丽君"},{"id":4,"name":"海韵4","singer":"邓丽君"},{"id":5,"name":"海韵5","singer":"邓丽君"},{"id":6,"name":"海韵6","singer":"邓丽君"},{"id":7,"name":"海韵7","singer":"邓丽君"},{"id":8,"name":"海韵8","singer":"邓丽君"},{"id":9,"name":"海韵9","singer":"邓丽君"}]{"id":0,"name":"海韵0","singer":"邓丽君"}

show2()执行的结果

{"1":{"id":30,"name":"海韵","singer":"邓丽君"},"2":{"id":30,"name":"Chen","pass":"chen"}}{"id":30,"name":"海韵","singer":"邓丽君"}