Java基础知识强化之IO流笔记32：转换流之OutputStreamWriter的使用

 1 package cn.itcast_02;
 2 
 3 import java.io.FileOutputStream;
 4 import java.io.IOException;
 5 import java.io.OutputStreamWriter;
 6 
 7 /*
 8  * OutputStreamWriter(OutputStream out):根据默认编码把字节流的数据转换为字符流
 9  * OutputStreamWriter(OutputStream out,String charsetName):根据指定编码把字节流数据转换为字符流
10  * 把字节流转换为字符流。
11  * 字符流 = 字节流 +编码表。
12  */
13 public class OutputStreamWriterDemo {
14     public static void main(String[] args) throws IOException {
15         // 创建对象
16         // OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(
17         // "osw.txt")); // 默认GBK
18         // OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(
19         // "osw.txt"), "GBK"); // 指定GBK
20         OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(
21                 "osw.txt"), "UTF-8"); // 指定UTF-8
22         // 写数据
23         osw.write("中国");
24 
25         // 释放资源
26         osw.close();
27     }
28 }