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🔖 序列化示例
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‎codes/advanced/src/main/java/io/github/dunwu/javase/serialization/ExternalizeDemo01.java‎

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package io.github.dunwu.javase.serialization;
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import java.io.Externalizable;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInput;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutput;
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import java.io.ObjectOutputStream;
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import java.io.OutputStream;
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/**
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* 序列化示例
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* @author Zhang Peng
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* @date 2018/6/4
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* @see SerializeDemo01
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* @see ExternalizeDemo01
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* @see UnSerializeDemo
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*/
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@SuppressWarnings("all")
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public class ExternalizeDemo01 {
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enum Sex {
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MALE, FEMALE
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}
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static class Person implements Externalizable {
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private static final long serialVersionUID = 1L;
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private String name = null;
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transient private Integer age = null;
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private Sex sex;
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public Person() {
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System.out.println("call Person()");
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}
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public Person(String name, Integer age, Sex sex) {
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this.name = name;
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this.age = age;
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this.sex = sex;
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}
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private void writeObject(ObjectOutputStream out) throws IOException {
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out.defaultWriteObject();
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out.writeInt(age);
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}
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private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
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in.defaultReadObject();
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age = in.readInt();
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}
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@Override
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public void writeExternal(ObjectOutput out) throws IOException { }
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@Override
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public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { }
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public String toString() {
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return "name: " + this.name + ", age: " + this.age + ", sex: " + this.sex;
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}
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}
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/**
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* 序列化
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*/
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private static void serialize(String filename) throws IOException {
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File f = new File(filename); // 定义保存路径
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OutputStream out = new FileOutputStream(f); // 文件输出流
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ObjectOutputStream oos = new ObjectOutputStream(out); // 对象输出流
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oos.writeObject(new Person("Jack", 30, Sex.MALE)); // 保存对象
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oos.close();
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out.close();
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}
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/**
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* 反序列化
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*/
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private static void deserialize(String filename) throws IOException, ClassNotFoundException {
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File f = new File(filename); // 定义保存路径
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InputStream in = new FileInputStream(f); // 文件输入流
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ObjectInputStream ois = new ObjectInputStream(in); // 对象输入流
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Object obj = ois.readObject(); // 读取对象
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ois.close();
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in.close();
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System.out.println(obj);
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}
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public static void main(String[] args) throws IOException, ClassNotFoundException {
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final String filename = "d:/text.dat";
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serialize(filename);
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deserialize(filename);
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}
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}

‎codes/advanced/src/main/java/io/github/dunwu/javase/serialization/ExternalizeDemo02.java‎

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package io.github.dunwu.javase.serialization;
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import java.io.Externalizable;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInput;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutput;
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import java.io.ObjectOutputStream;
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import java.io.OutputStream;
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/**
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* 序列化示例
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* @author Zhang Peng
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* @date 2018/6/4
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* @see SerializeDemo01
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* @see ExternalizeDemo02
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* @see UnSerializeDemo
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*/
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@SuppressWarnings("all")
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public class ExternalizeDemo02 {
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enum Sex {
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MALE, FEMALE
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}
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static class Person implements Externalizable {
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private static final long serialVersionUID = 1L;
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private String name = null;
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transient private Integer age = null;
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private Sex sex;
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public Person() {
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System.out.println("call Person()");
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}
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public Person(String name, Integer age, Sex sex) {
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this.name = name;
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this.age = age;
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this.sex = sex;
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}
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private void writeObject(ObjectOutputStream out) throws IOException {
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out.defaultWriteObject();
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out.writeInt(age);
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}
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private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
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in.defaultReadObject();
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age = in.readInt();
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}
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@Override
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public void writeExternal(ObjectOutput out) throws IOException {
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out.writeObject(name);
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out.writeInt(age);
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}
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@Override
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public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
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name = (String) in.readObject();
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age = in.readInt();
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}
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public String toString() {
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return "name: " + this.name + ", age: " + this.age + ", sex: " + this.sex;
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}
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}
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/**
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* 序列化
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*/
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private static void serialize(String filename) throws IOException {
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File f = new File(filename); // 定义保存路径
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OutputStream out = new FileOutputStream(f); // 文件输出流
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ObjectOutputStream oos = new ObjectOutputStream(out); // 对象输出流
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oos.writeObject(new Person("Jack", 30, Sex.MALE)); // 保存对象
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oos.close();
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out.close();
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}
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/**
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* 反序列化
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*/
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private static void deserialize(String filename) throws IOException, ClassNotFoundException {
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File f = new File(filename); // 定义保存路径
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InputStream in = new FileInputStream(f); // 文件输入流
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ObjectInputStream ois = new ObjectInputStream(in); // 对象输入流
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Object obj = ois.readObject(); // 读取对象
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ois.close();
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in.close();
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System.out.println(obj);
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}
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public static void main(String[] args) throws IOException, ClassNotFoundException {
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final String filename = "d:/text.dat";
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serialize(filename);
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deserialize(filename);
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}
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}

‎codes/advanced/src/main/java/io/github/dunwu/javase/serialization/SerializeDemo01.java‎

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package io.github.dunwu.javase.serialization;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.OutputStream;
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import java.io.Serializable;
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/**
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* 序列化示例
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* @author Zhang Peng
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* @date 2018/6/4
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*/
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@SuppressWarnings("all")
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public class SerializeDemo01 {
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enum Sex {
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MALE, FEMALE
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}
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static class Person implements Serializable {
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private static final long serialVersionUID = 1L;
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private String name = null;
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private Integer age = null;
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private Sex sex;
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public Person() {
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System.out.println("call Person()");
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}
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public Person(String name, Integer age, Sex sex) {
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this.name = name;
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this.age = age;
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this.sex = sex;
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}
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public String toString() {
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return "name: " + this.name + ", age: " + this.age + ", sex: " + this.sex;
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}
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}
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/**
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* 序列化
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*/
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private static void serialize(String filename) throws IOException {
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File f = new File(filename); // 定义保存路径
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OutputStream out = new FileOutputStream(f); // 文件输出流
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ObjectOutputStream oos = new ObjectOutputStream(out); // 对象输出流
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oos.writeObject(new Person("Jack", 30, Sex.MALE)); // 保存对象
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oos.close();
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out.close();
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}
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/**
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* 反序列化
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*/
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private static void deserialize(String filename) throws IOException, ClassNotFoundException {
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File f = new File(filename); // 定义保存路径
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InputStream in = new FileInputStream(f); // 文件输入流
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ObjectInputStream ois = new ObjectInputStream(in); // 对象输入流
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Object obj = ois.readObject(); // 读取对象
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ois.close();
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in.close();
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System.out.println(obj);
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}
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public static void main(String[] args) throws IOException, ClassNotFoundException {
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final String filename = "d:/text.dat";
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serialize(filename);
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deserialize(filename);
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}
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}

‎codes/advanced/src/main/java/io/github/dunwu/javase/serialization/SerializeDemo02.java‎

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package io.github.dunwu.javase.serialization;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.OutputStream;
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import java.io.Serializable;
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/**
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* 序列化示例
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* @author Zhang Peng
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* @date 2018/6/4
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* @see SerializeDemo01
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* @see SerializeDemo02
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* @see UnSerializeDemo
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*/
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@SuppressWarnings("all")
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public class SerializeDemo02 {
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enum Sex {
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MALE, FEMALE
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}
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static class Person implements Serializable {
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private static final long serialVersionUID = 1L;
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private String name = null;
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transient private Integer age = null;
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private Sex sex;
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public Person() {
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System.out.println("call Person()");
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}
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public Person(String name, Integer age, Sex sex) {
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this.name = name;
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this.age = age;
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this.sex = sex;
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}
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public String toString() {
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return "name: " + this.name + ", age: " + this.age + ", sex: " + this.sex;
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}
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}
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/**
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* 序列化
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*/
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private static void serialize(String filename) throws IOException {
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File f = new File(filename); // 定义保存路径
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OutputStream out = new FileOutputStream(f); // 文件输出流
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ObjectOutputStream oos = new ObjectOutputStream(out); // 对象输出流
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oos.writeObject(new Person("Jack", 30, Sex.MALE)); // 保存对象
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oos.close();
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out.close();
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}
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/**
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* 反序列化
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*/
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private static void deserialize(String filename) throws IOException, ClassNotFoundException {
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File f = new File(filename); // 定义保存路径
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InputStream in = new FileInputStream(f); // 文件输入流
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ObjectInputStream ois = new ObjectInputStream(in); // 对象输入流
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Object obj = ois.readObject(); // 读取对象
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ois.close();
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in.close();
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System.out.println(obj);
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}
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public static void main(String[] args) throws IOException, ClassNotFoundException {
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final String filename = "d:/text.dat";
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serialize(filename);
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deserialize(filename);
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}
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}

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