Java file encoding tool and java coding Tool

Java file encoding tool and java coding Tool

This article mainly introduces a tool class written in java to convert a file encoding to another encoding that does not change the file content:

You can use URLEncoding to re-encode and decode the source file.

　　　　　

　　　　

1 public class ChangeFileEncoding {2 public static int fileCount = 0; 3 public static String sourceFileRoot = "Replace with the source file or directory to be converted "; // The root directory of the file to be converted 4 public static String sourceCharset = "GB2312"; // The source file encoding 5 public static String targetCharset = "utf8 "; // target File code 6 public static void main (String [] args) throws IOException {7 File fileDir = new File (sourceFileRoot); 8 convert (fileDir); 9 System. out. pri Ntln ("Total Dealed:" + fileCount + "Files"); 10} 11 12 public static void convert (File file) throws IOException {13 // if it is a file, the code is converted, and the write overwrites the original file 14 if (file. isFile () {15 // only process. code file ending with java 16 if (file. getPath (). indexOf (". java ") =-1) {17 return; 18} 19 InputStreamReader isr = new InputStreamReader (new FileInputStream (20 file), sourceCharset ); 21 BufferedReader br = new BufferedReader (isr); 22 StringBuffe R sb = new StringBuffer (); 23 String line = null; 24 while (line = br. readLine ())! = Null) {25 // note that the line break 26 line = URLEncoder is written. encode (line, "utf8"); 27 sb. append (line + "\ r \ n"); // The line break in windows is \ r \ n28} 29 br. close (); 30 isr. close (); 31 32 File targetFile = new File (file. getPath (); 33 OutputStreamWriter osw = new OutputStreamWriter (34 new FileOutputStream (targetFile), targetCharset); 35 BufferedWriter bw = new BufferedWriter (osw ); 36 // write 37 bw at a time in the form of a string. write (URLDecoder. decode (sb. toString (), "utf8"); 38 bw. close (); 39 osw. close (); 40 41 System. out. println ("Deal:" + file. getPath (); 42 fileCount ++; 43} else {44 // recursively. encode and convert objects ending with java 45 for (File subFile: file. listFiles () {46 convert (subFile); 47} 48} 49} 50 51}