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这两个是官网的API
里面有这两个类的所有方法,是不可多得的好材料哦~
配合上面的API,大家再看下这段代码,就会大有收获了~
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import net.sf.json.JSONArray; import net.sf.json.JSONObject; import java.util.*; /** * * @author derek */ public class JavaTest { public static void main(String[] args){ JSONObject obj= new JSONObject(); obj.put( "derek" , "23" ); obj.put( "dad" , "49" ); obj.put( "mom" , "45" ); System.out.println( "通过构造器的方式创建的JSONObject对象:" +obj); Map<String,String> map= new LinkedHashMap<>(); map.put( "derek" , "23" ); map.put( "dad" , "49" ); map.put( "mom" , "45" ); System.out.println( "通过fromObject方法将map对象转换为JSONObject对象:" +JSONObject.fromObject(map)); JSONArray arr= new JSONArray(); arr.add( 0 , "derek" ); arr.add( 1 , "dad" ); arr.add( 2 , "mom" ); System.out.println( "通过构造器的方式创建的JSONArray:" +arr); ArrayList<String> list= new ArrayList<>(); list.add( "derek" ); list.add( "dad" ); list.add( "mom" ); System.out.println( "通过fromObject方法将Arraylist对象转换为JSONArray对象:" +JSONArray.fromObject(list)); System.out.println( "将HashMap对象通过fromObject方法转换为JSONArray对象" +JSONArray.fromObject(map)); String str= "{\"derek\":23,\"dad\":49,\"mom\":45}" ; System.out.println( "解析之后的JSON对象:" +JSONObject.fromObject(str)); //遍历输出 Iterator<String> it=obj.keys(); while (it.hasNext()){ String key=it.next(); System.out.println(key+ ":" +obj.get(key)); } } } |
运行结果如下:
通过构造器的方式创建的JSONObject对象:{"derek":"23","dad":"49","mom":"45"}
通过fromObject方法将map对象转换为JSONObject对象:{"derek":"23","dad":"49","mom":"45"}
通过构造器的方式创建的JSONArray:["derek","dad","mom"]
通过fromObject方法将Arraylist对象转换为JSONArray对象:["derek","dad","mom"]
将HashMap对象通过fromObject方法转换为JSONArray对象[{"derek":"23","dad":"49","mom":"45"}]
解析之后的JSON对象:{"derek":23,"dad":49,"mom":45}
derek:23
dad:49
mom:45
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原文地址:http://www.cnblogs.com/ZhuRenWang/p/4913040.html