第一步:首先判断源文件的编码格式:
File file = new File(path); InputStream in= new java.io.FileInputStream(file); byte[] b = new byte[3]; in.read(b); in.close(); if (b[0] == -17 && b[1] == -69 && b[2] == -65) System.out.println(file.getName() + ":编码为UTF-8"); else System.out.println(file.getName() + ":可能是GBK,也可能是其他编码");
第二步:用指定的编码格式读取文件流
- private static String forTest(String file) throws IOException {
- File f = new File(file);
- InputStreamReader read = new InputStreamReader(new FileInputStream(f),
- "编码格式");
- BufferedReader reader = new BufferedReader(read);
- String line;
- String s = "";
- while ((line = reader.readLine()) != null) {
- s = s+line;
- }
- return s;
- }
总结:就是采用如下的方式:
File file = new File("D:\Myeclipse\Ini\config.properties"); FileInputStream in = new FileInputStream(file); byte[] b = new byte[3]; in.read(b); String code = "GBK"; if (b[0] == -17 && b[1] == -69 && b[2] == -65){ code = "UTF-8"; } InputStreamReader inputStreamReader = new InputStreamReader(in,code); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String str = bufferedReader.readLine(); String data = ""; while(str != null){ data = data + str+" "; str = bufferedReader.readLine(); } in.close(); bufferedReader.close(); System.out.println(code); System.out.println(data);