IO流之-转换流-InputStreamReader

package com.deno04;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

/**
 * 将inputStream 转化为Reader
 * 
 * InputStreamReader
 * 知识点：
 *      1.通过InputStreamReader对象将字节转化为字符
 *      2.处理流也可以被包装
 *      3.InputStreamReader的构造器第二个参数 是文件的编码格式
 *  OutputStreamWriter 将字符转换为字节
 *  
 *      1.OutputStreamWriter(outputStream,"GBK"); 第二个参数也需要设置编码 手动指定编码格式 
 * 
 * 
 */
public class InputStreamReaderTest { 
    
    public static void main(String[] args) throws IOException {
        //实例化File 对象 
        File srcFile = new File("sanjing.txt");
        File destFile = new File("高鑫.txt");
        
        
        

        //创建inputStream 对象 
        InputStream inputStream = new FileInputStream(srcFile);  //字节流
        OutputStream   outputStream = new FileOutputStream(destFile,true);
        
        
         
        
        //创建转换流对象  InputStreamReader
        InputStreamReader inputStreamReader  = new InputStreamReader(inputStream,"UTF-8"); 
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream,"GBK"); 
        
        
        //使用缓冲流
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
        BufferedWriter bufferedWriter = new BufferedWriter(outputStreamWriter);
        
         
//		char [] bchar = new char[1024];   //字符读取
//		//读取 
//		int len;
//		while((len = bufferedReader.read(bchar)) != -1) {
//			
//			System.out.println(new String(bchar,0,len));
//			
//		}   
        String data;  
        
        while((data = bufferedReader.readLine()) != null) { 
            bufferedWriter.write(data);
            bufferedWriter.write("\n-------------------------");
            bufferedWriter.newLine();
            
        } 
        
        //关闭流对象
        bufferedReader.close(); 
        bufferedWriter.close();
        
    }
    


}