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Java transient關(guān)鍵字與序列化操作實(shí)例詳解

更新時(shí)間：2019年09月09日 11:37:42 作者：cakincqm

這篇文章主要介紹了Java transient關(guān)鍵字與序列化操作,結(jié)合實(shí)例形式詳細(xì)分析了java序列化操作相關(guān)實(shí)現(xiàn)方法與操作注意事項(xiàng),需要的朋友可以參考下

本文實(shí)例講述了Java transient關(guān)鍵字與序列化操作。分享給大家供大家參考，具體如下：

一介紹

transient關(guān)鍵字不會進(jìn)行JVM虛擬機(jī)的序列化，但也可以自己進(jìn)行序列化，要用到下面兩個(gè)函數(shù)。這兩個(gè)函數(shù)來自ArrayList源碼，可以分析ArrayList源碼的序列化和反序列化問題。這樣做可以對有效元素進(jìn)行序列化，不對無效元素進(jìn)行序列化，以提高網(wǎng)絡(luò)傳輸性能。

private void writeObject(java.io.ObjectOutputStream s)throws java.io.IOException
private void readObject(java.io.ObjectInputStream s) throws java.io.IOException, ClassNotFoundException

二實(shí)例

package com.imooc.io;
import java.io.Serializable;
public class Student implements Serializable{
  private String stuno;
  private String stuname;
  //該元素不會進(jìn)行jvm默認(rèn)的序列化
  private transient int stuage; 
  public Student(String stuno, String stuname, int stuage) {
     super();
     this.stuno = stuno;
     this.stuname = stuname;
     this.stuage = stuage;
  }
  public String getStuno() {
     return stuno;
  }
  public void setStuno(String stuno) {
     this.stuno = stuno;
  }
  public String getStuname() {
     return stuname;
  }
  public void setStuname(String stuname) {
     this.stuname = stuname;
  }
  public int getStuage() {
     return stuage;
  }
  public void setStuage(int stuage) {
     this.stuage = stuage;
  }
  @Override
  public String toString() {
     return "Student [stuno=" + stuno + ", stuname=" + stuname + ", stuage="
         + stuage + "]";
  }
}

package com.imooc.io;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class ObjectSeriaDemo1 {
  public static void main(String[] args) throws Exception{
     String file = "demo/obj.dat";
     //1.對象的序列化
     ObjectOutputStream oos = new ObjectOutputStream(
         new FileOutputStream(file));
     Student stu = new Student("10001", "張三", 20);
     oos.writeObject(stu);
     oos.flush();
     oos.close();
     ObjectInputStream ois = new ObjectInputStream(
         new FileInputStream(file));
     Student stu1 = (Student)ois.readObject();
     System.out.println(stu1);
     ois.close(); 
  }
}

三運(yùn)行結(jié)果