json字符串转换为JSONObject和JSONArray

import org.json.JSONArray;
import org.json.JSONObject;


public class JSONTest{
   public static void main(String[] args){
      //JSONObject
      String jsonMessage = "{"语文":"88","数学":"78","计算机":"99"}";
      String value1 = null;
      try{
           //将字符串转换成jsonObject对象
          JSONObject myJsonObject = new JSONObject(jsonMessage);
          //获取对应的值
          value1 = myJsonObject.getString("数学");
     } catch (JSONException e){
          System.out.println("异常");
      }
      System.out.println("value1="+value1);


       //JSONArray
    jsonMessage = "[{'num':'成绩', '外语':88, '历史':65, '地理':99, 'object':{'aaa':'1111','bbb':'2222','cccc':'3333'}}," +
           "{'num':'兴趣', '外语':28, '历史':45, '地理':19, 'object':{'aaa':'11a11','bbb':'2222','cccc':'3333'}}," +
           "{'num':'爱好', '外语':48, '历史':62, '地理':39, 'object':{'aaa':'11c11','bbb':'2222','cccc':'3333'}}]";

      JSONArray myJsonArray;
        try{
              myJsonArray = new JSONArray(jsonMessage);
              for(int i=0 ; i < myJsonArray.length() ;i++) {
               //获取每一个JsonObject对象
               JSONObject myjObject = myJsonArray.getJSONObject(i);
    
                //获取每一个对象中的值
                 String numString = myjObject.getString("num");
                 int englishScore = myjObject.getInt("外语");
                 int historyScore = myjObject.getInt("历史");
                 int geographyScore = myjObject.getInt("地理");
                  //获取数组中对象的对象
                 JSONObject myjObject2 = myjObject.getJSONObject("object");
                 String aaaString = myjObject2.getString("aaa");
                 System.out.println("aaaString="+aaaString);
                 System.out.println("numString="+numString);
                 System.out.println("englishScore="+englishScore);
                 System.out.println("historyScore="+historyScore);
                 System.out.println("geographyScore="+geographyScore);
              }
           }catch (JSONException e){
                    System.out.println("异常");
           }

     }
}