字符流与字节流转换-优快云博客

本文介绍如何使用Java的InputStreamReader和OutputStreamWriter在字符流与字节流之间进行转换，通过实例演示了读取和写入文件的过程，实现不同编码格式的文本文件转换。

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如何实现字符流与字节流之间转换转换流：InputStreamReader OutStreamReader

package javaIO;

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.InputStreamReader;
import java.io.OutputStreamWriter;

import org.junit.Test;

public class TestOtherStream {
	/*
	 * 如何实现字符流与字节流之间转换
	 * 转换流：InputStreamReader OutStreamReader
	 * 编码：字符串------>字节数组
	 * 解码：季节数组--->字符串
	 */
	@Test
	public void test1() {
		//解码
		BufferedReader br = null;
		BufferedWriter bw = null;
		try {
			File file = new File("C:\\Users\\邓 ser\\Desktop\\毕加猪语录.txt");
			FileInputStream fis = new FileInputStream(file);
			InputStreamReader isr = new InputStreamReader(fis,"GBK");
			br = new BufferedReader(isr);
			//编码
			File file1 = new File("C:\\Users\\邓 ser\\Desktop\\毕加猪语录2.txt");
			FileOutputStream fos = new FileOutputStream(file1);
			OutputStreamWriter osw = new OutputStreamWriter(fos,"GBK") ;
			bw = new BufferedWriter(osw);
			String str;
			while((str = br.readLine())!= null) {
				bw.write(str);
				bw.newLine();
				bw.flush();				
			}
		}  catch (IOException e) {
			e.printStackTrace();
		}finally {
			if(bw!=null) {
			try {
				bw.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
	    	}
			if(br!=null) {
			try {
				br.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			}
	}
}
}