java序列化与反序列化操作实例分析

本文实例分析了java序列化与反序列化操作。分享给大家供大家参考，具体如下：

概述：

java序列化是指把java对象转换为字节序列的过程;而java反序列化是指把字节序列恢复为java对象的过程。

示例代码：

import java.io.fileinputstream;
import java.io.filenotfoundexception;
import java.io.fileoutputstream;
import java.io.ioexception;
import java.io.objectinputstream;
import java.io.objectoutputstream;
import java.io.serializable;
import java.util.arraylist;
import java.util.date;
import java.util.hashmap;
import java.util.list;
public class test {
  /**
   * @param args
   */
  public static void main(string[] args) {
    try {
      objectoutputstream out = new objectoutputstream(new fileoutputstream("d:/objectfile.obj"));
      customer customer = new customer("中国人",23);
      out.writeobject("你好!");
      out.writeobject(new date());
      out.writeobject(customer);
      out.writeint(123);
      list list = new arraylist();
      int i =0 ;
      while(i<100) {
        customer customer2 = new customer("中国人",i);
        list.add(customer2);
        i++;
      }
      hashmap hashmap = new hashmap();
      hashmap.put("customer", list);
      out.writeobject(hashmap);
      out.close();
      objectinputstream in = new objectinputstream(new fileinputstream("d:/objectfile.obj"));
      system.out.println("obj1= " + (string) in.readobject());
      system.out.println("obj2= " + (date) in.readobject());
      customer obj3 = (customer) in.readobject();
      system.out.println("obj3= " + obj3);
      int obj4 = in.readint();
      system.out.println("obj4= " + obj4);
      object obj5 = in.readobject();
      system.out.println(obj5);
      hashmap hash_map = (hashmap)obj5;
      list l = (list) hash_map.get("customer");
      system.out.println("size: " + l.size());
      for(int ii=0; ii<l.size() -1 ; ii++) {
        customer c = (customer)l.get(ii);
        system.out.println(c.getname());
        system.out.println(c.getage());
      }
      in.close();
    } catch (filenotfoundexception e) {
      e.printstacktrace();
    } catch (ioexception e) {
      e.printstacktrace();
    } catch (classnotfoundexception e) {
      e.printstacktrace();
    }
  }
}
class customer implements serializable {
  private static final long serialversionuid = 1l;
  private string name;
  private int age;
  public string getname() {
    return name;
  }
  public int getage() {
    return age;
  }
  public customer(string name, int age) {
    this.name = name;
    this.age = age;
  }
  public string tostring() {
    return "name=" + name + ", age=" + age;
  }
}

希望本文所述对大家java程序设计有所帮助。