package cn.zzu.lxzqz;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
public class ReadAndWrite {
/**
* FileInputStream和FileOutputStream
* 可以读取和写各类文件，一般用于读取获取写入诸如图像数据之类的原始字节流
* @throws Exception
*/
public static void readAndWrite() throws Exception{
File file = new File("D:\\lxzqz\\DSC_1042.JPG");//图片
//File file = new File("D:\\lxzqz\\JSP中的include的两种用法.doc");//word
//File file = new File("D:\\lxzqz\\YaHei.Consolas.1.12.ttf");//不常用文件
//File file = new File("D:\\lxzqz\\mv\\唯一--音悦Tai.mp4");//视频
FileInputStream read = new FileInputStream(file);
byte[] by = new byte[100];
FileOutputStream write = new FileOutputStream(new File("D:\\lxzqz\\mv\\图片.jpg"));
//FileOutputStream write = new FileOutputStream(new File("D:\\lxzqz\\mv\\jsp.doc"));
//FileOutputStream write = new FileOutputStream(new File("D:\\lxzqz\\mv\\简体.ttf"));
//FileOutputStream write = new FileOutputStream(new File("D:\\lxzqz\\mv\\zhang.mp4"));
while(read.read(by) > 0) {
write.write(by);
}
read.close();
write.close();
}
/**
* DataInputStream和DataOutputStream
* 可以读取和写各类文件，跟上面的方法差不多，允许从底层输入、输出流中读取基本 Java 数据类型（servlet）
* @throws Exception
*/
public static void readAndWrite(int i) throws Exception{
File file = new File("D:\\lxzqz\\系统问题.doc");//word
//File file = new File("D:\\lxzqz\\YaHei.Consolas.1.12.ttf");//不常用文件
//File file = new File("D:\\lxzqz\\mv\\唯一--音悦Tai.mp4");//视频
DataInputStream read = new DataInputStream(new FileInputStream(file));
byte[] by = new byte[100];
DataOutputStream write = new DataOutputStream(new FileOutputStream(new File("D:\\lxzqz\\mv\\jsp3.doc")));
//DataOutputStream write = new DataOutputStream(new FileOutputStream(new File("D:\\lxzqz\\mv\\jianti.ttf")));
//DataOutputStream write = new DataOutputStream(new FileOutputStream(new File("D:\\lxzqz\\mv\\唯一.mp4")));
while(read.read(by) > 0) {
write.write(by);
}
read.close();
write.close();
}
/**
* 用于读取、写入字符流文件
* 用来读取字符文件的便捷类
* @throws Exception
*/
public static void fileReaderAndWriter() throws Exception{
File file = new File("D:\\lxzqz\\表命名.txt");//word
FileReader read = new FileReader(file);
char[] ch = new char[100];
FileWriter write = new FileWriter("D:\\lxzqz\\mv\\table.txt");
while(read.read(ch) > 0) {
write.write(ch);
}
read.close();
write.close();
}
public static void main(String[] args) throws Exception{
//readAndWrite();
//readAndWrite(0);
//fileReaderAndWriter();
}
}