Conversion between JSON string and object

 PackageASI;Importjava.util.ArrayList;ImportCom.alibaba.fastjson.JSON;Importcom.alibaba.fastjson.JSONException;ImportCom.alibaba.fastjson.JSONObject; Public classTestjsonobject {PrivateString name;PrivateString sex;  PublicString GetName () {returnname;}  Public voidsetName (String name) { This. Name =name;}  PublicString Getsex () {returnsex;}  Public voidsetsex (String sex) { This. Sex =sex;} //JSON string converted to Jsonobject class  Public Staticjsonobject Json2object (String json) {Jsonobject Object=(Jsonobject) jsonobject.parseobject (JSON); returnobject;} //JSON list converted to arraylist<jsonobject>  Public StaticArraylist<jsonobject>Jsonlist2object (String jsonlist) {ArrayList<JSONObject> objectlist= (arraylist<jsonobject>) jsonobject.parseobject (jsonlist,arraylist.class); returnObjectList;} //convert object to JSON  Public StaticString Object2json (Object o) {returnjson.tojsonstring (o); }   Public Static voidMain (string[] args) {String json= "{\" username\ ": \" bonnie\ ", \" Listdata\ ": [{\" address\ ": \" Shijingshan district \ ", \" street\ ": \" Yuhua road \ "},{\" address\ ": \" Haidian district \ ", \" Street\ ": \" Zhongshan road \ "}]}"; Try{   //1. Test JSON into ObjectJsonobject object=Json2object (JSON); String username= (String) object.get ("username");      SYSTEM.OUT.PRINTLN (username); String ListData=string.valueof (Object.get ("ListData")); //(String) object.get ("ListData");System.out.println (ListData); ArrayList<JSONObject> objectlist=Jsonlist2object (ListData);  for(intI=0;i<objectlist.size (); i++) {System.out.println (String) ((Jsonobject) (Objectlist.toarray ()) [i]). Get ("Address")); System.out.println (String) ((Jsonobject) (Objectlist.toarray ()) [i]). Get ("Street")); }   //2. Test object into JSONTestjsonobject t=NewTestjsonobject (); T.setname ("Bonnie"); T.setsex ("Female");  System.out.println (Object2json (t)); }Catch(jsonexception e) {e.printstacktrace (); }       }}

Note To import the jar:

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.2</version>
</dependency>

Conversion between JSON string and object