javaIO编码详解

原创

输出流

有哪些构造方法可以在参数上设置编码格式

• PrintStream(File file, String csn)
• PrintStream(String fileName, String csn)
• PrintWriter(File file, String csn)
• PrintWriter(String fileName, String csn) (注：PrintWriter类的构造方法可以接收OutputStream)
• OutputStreamWriter(OutputStream out, Charset cs)(注：An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset. The charset that it uses may be specified by name or may be given explicitly, or the platform's default charset may be accepted.可知OutputStreamWriter发挥了桥梁的作用）

输入流

有哪些构造方法可以在参数上设置编码格式

• InputStreamReader(InputStream in, Charset cs)
• Scanner(File source, String charsetName)
• Scanner(InputStream source, String charsetName)
• Scanner(Path source, String charsetName)

其他可以设置编码的方法

• String(byte[] bytes, Charset charset
• getBytes(Charset charset) String的普通方法