JVM启动时加载的Charset你注意了么?

package org.chinasoft.io; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStreamWriter; import java.io.Writer; public class TestCharset { public static void main(String[] args) throws Exception { String path = "i:" + File.separator + "file.txt"; InputStream is = new FileInputStream(new File(path)); byte[] b = new byte[8]; Writer out = new OutputStreamWriter(new FileOutputStream(new File(path))); byte[] b2 = "中".getBytes("utf8"); out.write(new String(b2, "utf8")); out.flush(); int i = is.read(b); do { for (int j = 0; j < i; j++) { System.out.println(b[j]); } System.out.println(i); System.out.println(i + "--" + new String(b, 0, i, "utf8")); } while ((i = is.read(b)) != -1); } }

上面的代码，如何JVM加载时使用的是"GBK"字符集，会是什么样？乱码

如果是utf8则可以显示正常（编码统一了）。

System.out.println(System.getProperty("file.encoding"));得到JVM加载时的字符集