关于Java基础中流的概述及序列化

来源：互联网发布：源码破解论坛编辑：程序博客网时间：2024/05/16 12:08

总体上分为字节流和字符流。

先说说相关的知识点序列化吧，序列化通常使用在某些实体类在流的传输中，通常这种类要实现Serializable接口，这个接口是个空接口，即该接口中没有定义任何的抽象方法，

称为“标识接口”，标识这种对象是允许被序列化的。

public class Student implements Serializable{
   /**
   *
   */
   private static final long serialVersionUID = 1L;
   private int age;
   private String name;
   private String gender;
   private int id;
   private int height;
   private int weight;
   /*private static int height;
   private transient int weight;*/

   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;
   }

   public String getGender() {
       return gender;
   }

   public void setGender(String gender) {
       this.gender = gender;
   }

   public int getId() {
       return id;
   }

   public void setId(int id) {
       this.id = id;
   }

   public int getHeight() {
       return height;
   }

   public void setHeight(int height) {
       this.height = height;
   }

   public int getWeight() {
       return weight;
   }

   public void setWeight(int weight) {
       this.weight = weight;
   }

   public Student(int age, String name, String gender, int id, int height,
           int weight) {
       super();
       this.age = age;
       this.name = name;
       this.gender = gender;
       this.id = id;
       this.height = height;
       this.weight = weight;
   }

   public Student() {
       super();
   }
@Override
public String toString() {
   // TODO Auto-generated method stub
   return "\n"+id+"\n"+age+"\n"+name+"\n"+gender+"\n"+weight+"\n"+height;
}

}

流可分为一些基本的称为低级流，转换流，操作流，包装流也就是高级流，这些流都要与其他的流相接，提供特定的数据处理功能

，操作其他的流必须与其他流相接。

InputStream/OutputStream 字节流的抽象父类

FileInputStream/FileOutputStream 直接与文件相接，读写文件的数据

BufferedInputStream/BufferOutputStream 提供内存缓冲区，提高字节读取效率，默认8k

DateInputStream/DateOutStream 读写固定格式的数据

一些比较常用的字符流：Reader/Writer 字符流的抽象父类

BufferedReader/BufferedWriter 提供内存缓冲区

InputStreamReader/OutputStreamWriter 字符编码转换流

FileReader/FileWriter

PrintWriter

ObjectInputStream/ObjectOutStream

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