FastJson-fastjsonのシンプルな使い方
1623 ワード
import java.util.ArrayList; import java.util.List;
import com.alibaba.fastjson.JSON;
public class TestFastJson {
}
class User {
}
class Group {
}
import com.alibaba.fastjson.JSON;
public class TestFastJson {
/**
* **java json **
*/
public void test1() {
Group group = new Group();
group.setId(0L);
group.setName("admin");
User guestUser = new User();
guestUser.setId(2L);
guestUser.setName("guest");
User rootUser = new User();
rootUser.setId(3L);
rootUser.setName("root");
group.getUsers().add(guestUser);
group.getUsers().add(rootUser);
// **java json **
String jsonString = JSON.toJSONString(group);
System.out.println(jsonString);
}
/**
* **json java **
*/
public void test2() {
String json = "{\"id\":0,\"name\":\"admin\","
+ "\"users\":[{\"id\":2,\"name\":\"guest\"},{\"id\":3,\"name\":\"root\"}]}";
// **json java **
Group group = JSON.parseObject(json, Group.class);
System.out.println(group.getUsers().get(0).getName());
}
/**
* main
*/
public static void main(String[] args) {
TestFastJson test = new TestFastJson();
test.test2();
}
}
class User {
private Long id;
private String name;
/**
*
*/
public User() {
super();
}
// getters/setters( )
}
class Group {
private Long id;
private String name;
private List users = new ArrayList();
/**
*
*/
public Group() {
super();
}
// getters/setters( )
}