FastJson是阿里的一款开源框架，用来快速实现Java的序列化和反序列化。
官方地址：https://github.com/alibaba/fastjson
使用方法演示：
下载jar包，使用IDEA导入fastjson.jar
import com.alibaba.fastjson.*;
class Student{
private int age;
private String name; public int getAge() {
return age;
} public void setAge(int age) {
this.age = age;
} public String getName() {
return name;
} public void setName(String name) {
this.name = name;
} @Override
public String toString() {
return "Student{" +
"age=" + age +
", name='" + name + '\'' +
'}';
}
}
public class FastjsonTest { public static void main(String[] args) { Student s = new Student();
s.setAge(18);
s.setName("haha");
String jsonstring = JSON.toJSONString(s);
System.out.println(jsonstring);
Student s2 = (Student)JSON.parseObject(jsonstring,Student.class);
System.out.println(s2.getAge());
System.out.println(s2.toString()); } }