은성이의 프로그램X파일

package json.test;

import java.util.ArrayList;

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

public class TestOrgJSON {
 public static void test1() throws JSONException{
  JSONObject obj = new JSONObject();
  obj.put("name", "홍길동");
  obj.put("age", 20);
  obj.put("tall", 190.7);
  obj.put("male", true);
  String str = obj.toString();
  System.out.println("- test1() 결과 -");
  System.out.println(str);//결과 : {"male":true,"age":20,"name":"홍길동","tall":190.7}
  System.out.println();
 }
 public static void test2(){
  //DTO를 이용해 JSONObject 생성
  CustomerDTO cto = new CustomerDTO("id-111", "유재석", 20000, true);
  JSONObject obj = new JSONObject(cto);
  //String str = obj.toString();
  //System.out.println(str);
  System.out.println("- test2() 결과 -");
  System.out.println(obj);//결과 : {"id":"id-111","mileage":20000,"name":"유재석","male":true}
  System.out.println();
 }
 public static void test3()throws JSONException{
  //{"mem": {"id":"id-111","mileage":20000,"name":"유재석","male":true}}
  CustomerDTO cto1 = new CustomerDTO("id-111", "유재석", 20000, true);
  CustomerDTO cto2 = new CustomerDTO("id-222", "홍길동", 20000, true);
  CustomerDTO cto3 = new CustomerDTO("id-333", "박명수", 20000, true);
  JSONObject ctoJSON1 = new JSONObject(cto1);
  JSONObject ctoJSON2 = new JSONObject(cto2);
  JSONObject ctoJSON3 = new JSONObject(cto3);
  
  JSONObject obj = new JSONObject();
  
  obj.put("cto1", ctoJSON1);
  obj.put("cto2", ctoJSON2);
  obj.put("cto3", ctoJSON3);
  System.out.println("- test3() 결과 -");
  System.out.println(obj);
  System.out.println();
 }
 public static void test4() throws JSONException{
  CustomerDTO cto1 = new CustomerDTO("id-111", "유재석", 20000, true);
  CustomerDTO cto2 = new CustomerDTO("id-222", "홍길동", 30000, true);
  CustomerDTO cto3 = new CustomerDTO("id-333", "박명수", 40000, true);
  ArrayList<CustomerDTO> list = new ArrayList<CustomerDTO>();
  list.add(cto1);
  list.add(cto2);
  list.add(cto3);
  JSONObject obj = new JSONObject();
  obj.put("customers", list);
  System.out.println("- test4() 결과 -");
  System.out.println(obj);
  System.out.println();

 }
 //JSONArray이용 - 자바스크립트 배열형태의 문자열
 public static void test5() throws JSONException{
 
  JSONArray arr = new JSONArray();
   arr.put("이순신");
   arr.put(false);
   arr.put(1000);
   arr.put(20.48);
   System.out.println("- test5() 결과 -");
   System.out.println(arr);
   System.out.println();

 }
 public static void test6() throws JSONException{
   ArrayList list = new ArrayList();
   list.add("홍길동");
   list.add(true);
   list.add(1000);
   list.add(222.1);
  
  JSONArray arr = new JSONArray(list);
  System.out.println("- test6() 결과 -");
   System.out.println(arr);
   System.out.println();

 }
 public static void test7() throws JSONException{
   ArrayList list = new ArrayList();
   list.add("홍길동");
   list.add(true);
   list.add(1000);
   list.add(222.1);
  
  JSONArray arr = new JSONArray(list);
  JSONObject obj = new JSONObject();
  obj.put("list", arr);
  System.out.println("- test7() 결과 -");
  System.out.println(obj);
  System.out.println(arr);
  System.out.println();

 }
 public static void test8() throws JSONException{
  String[] list = {"aaa","bbb","ccc"};
  JSONArray arr = new JSONArray(list);
  JSONObject obj = new JSONObject();
  obj.put("list", arr);
  System.out.println("- test8() 결과 -");
  System.out.println(arr);
  System.out.println(obj);
  System.out.println();
 
 }
 public static void test9() throws JSONException{
  CustomerDTO cto1 = new CustomerDTO("id-111", "유재석", 20000, true);
  CustomerDTO cto2 = new CustomerDTO("id-222", "홍길동", 30000, true);
  CustomerDTO cto3 = new CustomerDTO("id-333", "박명수", 40000, true);
  JSONArray arr = new JSONArray();
  arr.put(cto1);
  arr.put(cto2);
  arr.put(cto3);
  System.out.println("- test9() 결과 -");
  System.out.println(arr);
  System.out.println();

 }
 public static void test10() throws JSONException{
  CustomerDTO cto1 = new CustomerDTO("id-111", "유재석", 20000, true);
  CustomerDTO cto2 = new CustomerDTO("id-222", "홍길동", 30000, true);
  CustomerDTO cto3 = new CustomerDTO("id-333", "박명수", 40000, true);
  ArrayList list = new ArrayList();
  list.add(cto1);
  list.add(cto2);
  list.add(cto3);
  JSONArray arr = new JSONArray(list);
  System.out.println("- test10() 결과 -");
  System.out.println(arr);
  System.out.println();

 }
 public static void main(String[] args) throws JSONException{
  test1();
  test2();
  test3();
  test4();
  test5();
  test6();
  test7();
  test8();
  test9();
  test10();
 }
}

package json.test;

public class CustomerDTO {
 private String id;
 private String name;
 private int mileage;
 private boolean male;
 public CustomerDTO() {
  super();
  // TODO Auto-generated constructor stub
 }
 public CustomerDTO(String id, String name, int mileage, boolean male) {
  super();
  this.id = id;
  this.name = name;
  this.mileage = mileage;
  this.male = male;
 }
 public String getId() {
  return id;
 }
 public void setId(String id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public int getMileage() {
  return mileage;
 }
 public void setMileage(int mileage) {
  this.mileage = mileage;
 }
 public boolean isMale() {
  return male;
 }
 public void setMale(boolean male) {
  this.male = male;
 }
 @Override
 public String toString() {
  return "CustomerDTO [id=" + id + ", name=" + name + ", mileage="
    + mileage + ", male=" + male + "]";
 }
 @Override
 public int hashCode() {
  final int prime = 31;
  int result = 1;
  result = prime * result + ((id == null) ? 0 : id.hashCode());
  result = prime * result + (male ? 1231 : 1237);
  result = prime * result + mileage;
  result = prime * result + ((name == null) ? 0 : name.hashCode());
  return result;
 }
 @Override
 public boolean equals(Object obj) {
  if (this == obj)
   return true;
  if (obj == null)
   return false;
  if (getClass() != obj.getClass())
   return false;
  CustomerDTO other = (CustomerDTO) obj;
  if (id == null) {
   if (other.id != null)
    return false;
  } else if (!id.equals(other.id))
   return false;
  if (male != other.male)
   return false;
  if (mileage != other.mileage)
   return false;
  if (name == null) {
   if (other.name != null)
    return false;
  } else if (!name.equals(other.name))
   return false;
  return true;
 }
 
}

- test1() 결과 -
{"male":true,"age":20,"name":"홍길동","tall":190.7}

- test2() 결과 -
{"id":"id-111","mileage":20000,"name":"유재석","male":true}

- test3() 결과 -
{"cto1":{"id":"id-111","mileage":20000,"name":"유재석","male":true},"cto3":{"id":"id-333","mileage":20000,"name":"박명수","male":true},"cto2":{"id":"id-222","mileage":20000,"name":"홍길동","male":true}}

- test4() 결과 -
{"customers":[{"id":"id-111","mileage":20000,"name":"유재석","male":true},{"id":"id-222","mileage":30000,"name":"홍길동","male":true},{"id":"id-333","mileage":40000,"name":"박명수","male":true}]}

- test5() 결과 -
["이순신",false,1000,20.48]

- test6() 결과 -
["홍길동",true,1000,222.1]

- test7() 결과 -
{"list":["홍길동",true,1000,222.1]}
["홍길동",true,1000,222.1]

- test8() 결과 -
["aaa","bbb","ccc"]
{"list":["aaa","bbb","ccc"]}

- test9() 결과 -
["CustomerDTO [id=id-111, name=유재석, mileage=20000, male=true]","CustomerDTO [id=id-222, name=홍길동, mileage=30000, male=true]","CustomerDTO [id=id-333, name=박명수, mileage=40000, male=true]"]

- test10() 결과 -
[{"id":"id-111","mileage":20000,"name":"유재석","male":true},{"id":"id-222","mileage":30000,"name":"홍길동","male":true},{"id":"id-333","mileage":40000,"name":"박명수","male":true}]