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fastjson - 之常见的数据类型与json的相互转换,
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public class FastJsonTest1
{
/**
* 数组转json格式字符串
*/
public void array2Json(){
String[] arr = {"bill","green",68)">"maks",68)">"jim"};
String jsonText = JSON.toJSONString(arr,true);
System.out.println("array2Json()方法:jsonText=="+jsonText);
}
/**
* json格式字符串转数组
*/
public void json2Array(){
String jsonText = "[\"bill\",\"green\",\"maks\",\"jim\"]";
JSONArray jsonArr = JSON.parseArray(jsonText);
System.out.println("json2Array()方法:jsonArr=="+jsonArr);
}
/**
* 数组转json格式字符串
*/
public void array2Json2(){
User user1 = new User("P001",68)">"TOM",16);
User user2 = new User("P002",68)">"JACKSON",153)">21);
User user3 = new User("P003",68)">"MARTIN",153)">20);
User[] userArr = {user1,user2,user3};
String jsonText = JSON.toJSONString(userArr,68)">"array2Json2()方法:jsonText=="+jsonText);
}
/**
* json格式字符串转数组
*/
public void json2Array2(){
String jsonText = "[{\"age\":16,\"id\":\"P001\",\"name\":\"TOM\"},{\"age\":21,\"id\":\"P002\",\"name\":\"JACKSON\"},{\"age\":20,\"id\":\"P003\",\"name\":\"MARTIN\"}]";
JSONArray jsonArr = JSON.parseArray(jsonText);
System.out.println("json2Array2()方法:jsonArr=="+jsonArr);
public void list2Json(){
List list = new ArrayList();
User user1 = new User("L001",153)">16);
list.add(user1);
User user2 = new User("L002",153)">21);
list.add(user2);
User user3 = new User("L003",153)">20);
list.add(user3);
String jsonText = JSON.toJSONString(list,68)">"list2Json()方法:jsonText=="+jsonText);
public void list2Json2(){
List list = new ArrayList();
Address address1 = new Address("广东省",68)">"深圳市",68)">"科苑南路",68)">"580053");
User user1 = new User(16,address1);
list.add(user1);
Address address2 = new Address("江西省",68)">"南昌市",68)">"阳明路",68)">"330004");
User user2 = new User(21,address2);
list.add(user2);
Address address3 = new Address("陕西省",68)">"西安市",68)">"长安南路",68)">"710114");
User user3 = new User(20,address3);
list.add(user3);
String jsonText = JSON.toJSONString(list,68)">"list2Json2()方法:jsonText=="+jsonText);
}
/**
* map转json格式字符串
*/
public void map2Json(){
Map map = new HashMap();
Address address1 = new Address("580053");
map.put("address1",address1);
Address address2 = new Address("330004");
map.put("address2",address2);
Address address3 = new Address("710114");
map.put("address3",address3);
String jsonText = JSON.toJSONString(map,68)">"map2Json()方法:jsonText=="+jsonText);
}
}