演示使用InputStreamReader和OutputStreamWriter

• InputStreamReader

  package com.io.reader;
  
  import java.io.BufferedReader;
  import java.io.FileInputStream;
  import java.io.InputStreamReader;
  
  /**
   * 演示使用InputStreamReader转换流解决中文乱码问题
   * 将字节流FileInputStream转成字符流InputStreamReader，指定编码gbk/utf-8
   */
  public class InputStreamReader_ {
      public static void main(String[] args) throws Exception{
          String filePath = "d:\\a.txt";//注文件中的a.txt保存的类型是ANSI，所以编码方式要选gbk
          //1.把FileInputStream转成 InputStreamReader
          //2.指定编码为gbk
          InputStreamReader isr = new InputStreamReader(new FileInputStream(filePath), "gbk");
          //3.把 InputStreamReader传入BufferedReader
          BufferedReader br = new BufferedReader(isr);
          //4.读取
          String s= br.readLine();
          System.out.println("读取内容="+s);
          //5.关闭外层流,底层流FileInputStream会自动关闭
          br.close();
      }
  }
  

   

• OutputStreamWriter

package com.io.writer;

import java.io.*;

/**
 * 演示使用OutputStreamWriter
 * 将字节流FileOutputStream转成字符流OutputStreamWriter，指定编码gbk/utf-8
 */
public class OutputStreamWriter_ {
    public static void main(String[] args) throws IOException {
        String filePath="d:\\cyy.txt";
        String charSet="gbk";
        OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(filePath),charSet);
        osw.write("hi,沐晴");
        osw.close();
        System.out.println("按照"+charSet+"保存文件成功");



    }
}