package com.mai.json;
import static org.junit.Assert.assertEquals;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import net.sf.ezmorph.Morpher;
import net.sf.ezmorph.MorpherRegistry;
import net.sf.ezmorph.bean.BeanMorpher;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.util.JSONUtils;
import org.apache.commons.beanutils.PropertyUtils;
import org.junit.Test;
public class JsonLibTest {
public static void main(String[] args) {
// testArrayToJSON();
// testListToJSON();
// testJsonStrToJSON();
// testMapToJSON();
testBeadToJSON2();
}
public static void testJSONObject() {
JSONObject JSON = new JSONObject();
JSON.put("username","huangwuyi");
JSON.put("sex", "男");
JSON.element("address", "福建省");
System.out.println("jsonObject==>"+JSON);
//{"username":"huangwuyi","sex":"男","address":"福建省"}
JSONArray jsonArray = new JSONArray();
jsonArray.add(0, "array1");
jsonArray.add(1,"array2");
JSON.element("jsonArray", jsonArray);
JSONArray array = JSON.getJSONArray("jsonArray");
System.out.println("JSONArray==>"+array);
//["array1","array2"]
System.out.println("结果="+JSON);
//{"username":"huangwuyi","sex":"男","address":"福建省","jsonArray":["array1","array2"]}
String temp=JSON.toString();
JSONObject object = JSONObject.fromObject(temp);
System.out.println("username="+object.get("username"));
}
private static void testBeadToJSON2() {
TestObjectToJson obj = new TestObjectToJson();
Gson gson = new Gson();
String json = gson.toJson(obj);
System.out.println(json);
//{"id":100,"name":"hello"}
String jsonString="{'id':100,'name':'hello'}";
TestObjectToJson toObj = gson.fromJson(json, TestObjectToJson.class);
}
static class TestObjectToJson {
private int id = 100;
private String name = "hello";
}
private static void testBeadToJSON() {
JsonArray array = new JsonArray();
JsonObject top = new JsonObject();
top.addProperty("id", "ii");
top.addProperty("pId", "pp");
top.addProperty("name", "nn");
top.addProperty("lvl", "1");
array.add(top);
JsonObject second = new JsonObject();
second.addProperty("id", "i2");
second.addProperty("pId", "p2");
second.addProperty("name", "n2");
second.addProperty("lvl", "2");
array.add(second);
System.out.println(top.toString());
// {"id":"ii","pId":"pp","name":"nn","lvl":"1"}
System.out.println(array.toString());
// [{"id":"ii","pId":"pp","name":"nn","lvl":"1"},{"id":"i2","pId":"p2","name":"n2","lvl":"2"}]
}
public static void testArrayToJSON() {
boolean[] boolArray = new boolean[] { true, false, true };
JSONArray jsonArray = JSONArray.fromObject(boolArray);
System.out.println(jsonArray);
// prints [true,false,true]
}
public static void testListToJSON() {
List list = new ArrayList();
list.add("first");
list.add("second");
JSONArray jsonArray = JSONArray.fromObject(list);
System.out.println(jsonArray);
// prints ["first","second"]
}
public static void testJsonStrToJSON() {
JSONArray jsonArray = JSONArray.fromObject("['json','is','easy']");
System.out.println(jsonArray);
// prints ["json","is","easy"]
}
public static void testMapToJSON() {
Map map = new HashMap();
map.put("name", "json");
map.put("bool", Boolean.TRUE);
map.put("int", new Integer(1));
map.put("arr", new String[] { "a", "b" });
map.put("func", "function(i){ return this.arr[i]; }");
JSONObject jsonObject = JSONObject.fromObject(map);
System.out.println(jsonObject);
// {"arr":["a","b"],"int":1,"name":"json","func":function(i){ return this.arr[i]; },"bool":true}
}
//复合类型bean转成成json
@Test
public void testBeadToJSON(){
MyBean bean = new MyBean();
bean.setId("001");
bean.setName("银行卡");
bean.setDate(new Date());
List cardNum = new ArrayList();
cardNum.add("农行");
cardNum.add("工行");
cardNum.add("建行");
cardNum.add(new Person("test"));
bean.setCardNum(cardNum);
JSONObject jsonObject = JSONObject.fromObject(bean);
System.out.println(jsonObject);
}
//普通类型的json转换成对象
@Test
public void testJSONToObject() throws Exception{
String json = "{name=\"json\",bool:true,int:1,double:2.2,func:function(a){ return a; },array:[1,2]}";
JSONObject jsonObject = JSONObject.fromObject( json );
System.out.println(jsonObject);
Object bean = JSONObject.toBean( jsonObject );
assertEquals( jsonObject.get( "name" ), PropertyUtils.getProperty( bean, "name" ) );
assertEquals( jsonObject.get( "bool" ), PropertyUtils.getProperty( bean, "bool" ) );
assertEquals( jsonObject.get( "int" ), PropertyUtils.getProperty( bean, "int" ) );
assertEquals( jsonObject.get( "double" ), PropertyUtils.getProperty( bean, "double" ) );
assertEquals( jsonObject.get( "func" ), PropertyUtils.getProperty( bean, "func" ) );
System.out.println(PropertyUtils.getProperty(bean, "name"));
System.out.println(PropertyUtils.getProperty(bean, "bool"));
System.out.println(PropertyUtils.getProperty(bean, "int"));
System.out.println(PropertyUtils.getProperty(bean, "double"));
System.out.println(PropertyUtils.getProperty(bean, "func"));
System.out.println(PropertyUtils.getProperty(bean, "array"));
List arrayList = (List)JSONArray.toCollection(jsonObject.getJSONArray("array"));
for(Object object : arrayList){
System.out.println(object);
}
}
//将json解析成复合类型对象, 包含List
@Test
public void testJSONToBeanHavaList(){
String json = "{list:[{name:'test1'},{name:'test2'}],map:{test1:{name:'test1'},test2:{name:'test2'}}}";
// String json = "{list:[{name:'test1'},{name:'test2'}]}";
Map classMap = new HashMap();
classMap.put("list", Person.class);
MyBeanWithPerson diyBean = (MyBeanWithPerson)JSONObject.toBean(JSONObject.fromObject(json),MyBeanWithPerson.class , classMap);
System.out.println(diyBean);
List list = diyBean.getList();
for(Object o : list){
if(o instanceof Person){
Person p = (Person)o;
System.out.println(p.getName());
}
}
}
//将json解析成复合类型对象, 包含Map
@Test
public void testJSONToBeanHavaMap(){
//把Map看成一个对象
String json = "{list:[{name:'test1'},{name:'test2'}],map:{testOne:{name:'test1'},testTwo:{name:'test2'}}}";
Map classMap = new HashMap();
classMap.put("list", Person.class);
classMap.put("map", Map.class);
//使用暗示,直接将json解析为指定自定义对象,其中List完全解析,Map没有完全解析
MyBeanWithPerson diyBean = (MyBeanWithPerson)JSONObject.toBean(JSONObject.fromObject(json),MyBeanWithPerson.class , classMap);
System.out.println(diyBean);
System.out.println("do the list release");
List<Person> list = diyBean.getList();
for(Person o : list){
Person p = (Person)o;
System.out.println(p.getName());
}
System.out.println("do the map release");
//先往注册器中注册变换器,需要用到ezmorph包中的类
MorpherRegistry morpherRegistry = JSONUtils.getMorpherRegistry();
Morpher dynaMorpher = new BeanMorpher( Person.class, morpherRegistry);
morpherRegistry.registerMorpher( dynaMorpher );
Map map = diyBean.getMap();
/*这里的map没进行类型暗示,故按默认的,里面存的为net.sf.ezmorph.bean.MorphDynaBean类型的对象*/
System.out.println(map);
/*输出:
{testOne=net.sf.ezmorph.bean.MorphDynaBean@f73c1[
{name=test1}
], testTwo=net.sf.ezmorph.bean.MorphDynaBean@186c6b2[
{name=test2}
]}
*/
List<Person> output = new ArrayList();
for( Iterator i = map.values().iterator(); i.hasNext(); ){
//使用注册器对指定DynaBean进行对象变换
output.add( (Person)morpherRegistry.morph( Person.class, i.next() ) );
}
for(Person p : output){
System.out.println(p.getName());
/*输出:
test1
test2
*/
}
}
}
5.下面提供上面例子所需的资源,包括jar包和代码
/Files/mailingfeng/json-lib/json-lib用例所需jar包和java类.rar