详细解决方案
检测某个txt文件是gbk编码还是utf8编码
热度：83 发布时间：2024-01-21 15:26:27.0
阅读器需要用到
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public String getCharset() throws IOException {
mBookFile = new RandomAccessFile(strFilePath, "r");byte[] bytes = new byte[200];mBookFile.read(bytes);mCharset = EncodeDetector.detect(bytes); Log.e("TAG", "The charset is " + mCharset);return mCharset; }
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package com.example.novelreader;public class EncodeDetector {
public final static String UTF8 = "UTF-8"; public final static String GBK = "GBK"; /**
* 检测
* @param data
* @return
*/public static String detect(byte[] data) {
int utfCount = 0;boolean isUtf8 = true;for (int i = 0; i < data.length; i++) {
byte b0 = data[i];if (utfCount == 0) {
if ((b0 & 0x80) != 0) {
if ((b0 & 0xE0) == 0xC0) {
utfCount = 1;} else if ((b0 & 0xF0) == 0xE0) {
utfCount = 2;} else if ((b0 & 0xF8) == 0xF0) {
utfCount = 3;} else if ((b0 & 0xFC) == 0xF8) {
utfCount = 4;} else if ((b0 & 0xFE) == 0) {
utfCount = 5;} else {
isUtf8 = false;break;}}} else {
if ((b0 & 0xC0) != 0x80) {
isUtf8 = false;break;}--utfCount;}}if (isUtf8) {
return UTF8;} else {
return GBK;}}
}
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