Java转换流

转换流

是字符流和字节流之间的桥梁

转换输出流:OutputSteamWriter

转换输入流:InputStreamReader

InputStreamReader输入流

package myio;

import java.io.*;

public class inputsteamread {
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(new FileInputStream("D:\\文件路径\\a.txt"),"GBK");
        int ch;
        while ((ch = isr.read()) != -1){
            System.out.print((char) ch);
        }
        isr.close();
    }
}

运行结果

OutputSteamWriter

package myio;

import java.io.*;

public class inputsteamread {
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(new FileInputStream("D:\\文件路径\\c.txt"),"GBK");
        int ch;
        while ((ch = isr.read()) != -1){
            System.out.print((char) ch);
        }
        isr.close();
    }
}

文件从GBK转换成UTF-8

package myio;

import java.io.*;

public class inputoutput {
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(new FileInputStream("D:\\Web\\API\\src\\myio\\c.txt"),"GBK");
        OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("D:\\Web\\API\\src\\myio\\d.txt"),"UTF-8");
        int ch;
        while ((ch = isr.read()) != -1){
            osw.write(ch);
        }
        osw.close();
        isr.close();
    }
}