java判斷文字檔案編碼格式
阿新 • • 發佈:2019-08-07
上篇文章需要讀取當前java或者配置檔案的編碼格式,這裡主要支援UTF-8、GBK、UTF-16、Unicode等
/**
* 判斷檔案的編碼格式
* @param fileName :file
* @return 檔案編碼格式
* @throws Exception
*/
public static String codeString(File fileName) throws Exception{
BufferedInputStream bin = new BufferedInputStream(
new FileInputStream(fileName));
int p = (bin.read() << 8) + bin.read();
String code = null;
switch (p) {
case 0xefbb:
code = "UTF-8";
break;
case 0xfffe:
code = "Unicode";
break;
case 0xfeff:
code = "UTF-16BE";
break;
default:
code = "GBK";
}
IOUtils.closeQuietly(bin);
retu