序列化
public class User implements Serializable {//这个序列化id,使得这个类在网络中传输也可以让接收方的JVM识别为同一个类private static final long serialVersionUID = 1L;private String name;private String age;public User(String name, String age) {this.name = name;this.age = age;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getAge() {return age;}public void setAge(String age) {this.age = age;}@Overridepublic String toString() {return "User{" +"name='" + name + '\'' +", age='" + age + '\'' +'}';}}
