FastJson.java import po.User;import com.alibaba.fastjson.JSON;public class Json {public static void main(String[] args) {User u=new User(1,"java","111","112",33);String json=JSON.toJSONString(u);System.out.println(json);String str=JSON.toJS
          import po.User;
import com.alibaba.fastjson.JSON;
public class Json {
public static void main(String[] args) {
	User u=new User(1,"java","111","112",33);
	String json=JSON.toJSONString(u);
	System.out.println(json);
	String str=JSON.toJSONString(u,true);
	System.out.println(str);
	User m=JSON.parseObject(json, User.class);
	System.out.println(m.toString());
}
}
//如果想在在User对象的部分属性不在json字符串输出,需要在对应属性的get方法上添加@JSONField(serialize=false)即可
//PO的Date对象格式化方法:@JSONField(format="yyyy-MM-dd HH:mm:ss")
        
        