Transform _java between entity classes and JSON objects in Java

When you need to encapsulate data with a JSON object, you often write a lot of code, and there's a lot of copy and paste, so that we can convert JSON to an entity object using Pojo's ideas

Package myutil;
 
Import java.io.IOException;
Import myproject.student;
 
Import myproject.studentlist;
Import Org.codehaus.jackson.map.ObjectMapper;
Import Org.json.JSONArray;
Import org.json.JSONException;
Import Org.json.JSONObject;  /** * Convert between entity class and JSON object (dependent package Jackson-all-1.7.6.jar, Jsoup-1.5.2.jar) * @author WCK */public class Jsonutil {/** * Converts JSON to entity Pojo * @param jsonstr * @param obj * @return */public static<t> Object jsontoobj (String JS
    Onstr,class<t> obj) {t = null;
      try {objectmapper objectmapper = new Objectmapper ();
    t = Objectmapper.readvalue (jsonstr, obj);
    catch (Exception e) {e.printstacktrace ();
  } return t; /** * Converts entity Pojo to JSON * @param obj * @return * @throws jsonexception * @throws ioexception * * publi C static<t> jsonobject Objecttojson (T obj) throws Jsonexception, IOException {objectmapper mapper = new OBJECTM 
    Apper (); Convert objecT to JSON string string jsonstr = "";
    try {jsonstr = mapper.writevalueasstring (obj);
    catch (IOException e) {throw e;
  Return to New Jsonobject (JSONSTR);
    public static void Main (string[] args) throws Jsonexception, IOException {jsonobject obj = null;
    obj = new Jsonobject ();
    Obj.put ("name", "213");
    Obj.put ("Age", 27);
    Jsonarray array = new Jsonarray ();
    Array.put (obj);
    obj = new Jsonobject ();
    Obj.put ("name", "214");
    Obj.put ("Age", 28);
    Array.put (obj);
    Student stu = (Student) jsontoobj (obj.tostring (), student.class);
    Jsonobject objlist = new Jsonobject ();
    Objlist.put ("Student", array);
    System.out.println ("objlist:" +objlist);
    Studentlist stulist = (studentlist) jsontoobj (objlist.tostring (), studentlist.class);
    System.out.println ("Student:" +stu);
    System.out.println ("stulist:" +stulist);
    System.out.println ("#####################################"); Jsonobject getobj = ObjecttojSon (Stu);
  System.out.println (Getobj);
 }
}

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