示例

public static void main( String[] args ) { // Assume default charset ISO-8859-1 and file with UTF-16BE content FileReader fileReader = null; try { fileReader = new java.io.FileReader( "file1" ); //$NON-NLS-1$ System.out.println( fileReader.read() ); } catch ( IOException e ) { e.printStackTrace(); } }

解决方案

要自行指定字符编码值，请使用 CharsetDecoder 在 FileInputStream 上构造一个 InputStreamReader。 public static void main( String[] args ) { // Assume default charset ISO-8859-1 and file with UTF-16BE content InputStreamReader reader = null; try { reader = new InputStreamReader( new FileInputStream("file1"), "UTF-16BE"); System.out.println( reader.read() ); } catch ( IOException e ) { e.printStackTrace(); } }