Crc32 access to a document check concise code of java
Keyword: java, crc.
Jdk1.4 from the beginning, java core package has been provided to crc of support. Here is a simple example, you want to help.
Import java.util.zip.CRC32;
Import java.util.zip.CheckedInputStream;
Import java.io.FileInputStream;
Import java.io.File;
/ **
*
* <p> Title: </ p>
* <p> Description: </ p>
* <p> Copyright: Copyright (c) 2003 </ p>
* <p> Company: www.jagie.com </ p>
* @ Author Jaige
* @ Version 1.0
* /
(Public class FileToCRCUtil
Public static String getFileCRCCode (File file) throws Exception (
FileInputStream fileinputstream = new FileInputStream (file);
CRC32 crc32 = new CRC32 ();
For (CheckedInputStream checkedinputstream =
New CheckedInputStream (fileinputstream, crc32);
Checkedinputstream.read ()! = -1;
) (
)
Return Long.toHexString (crc32.getValue ());
)
Public static void main (String [] args) throws Exception (
File f = new File ( "c: \ \ YSFPCGL200311_237010400_JK.XML");
System.err.println (getFileCRCCode (f));
)
)
Tags: java access, java code