使用Jacksum对文件夹和文件生成checksum

Jacksum 是一个java开源工具， 用来 给单个文件生成checksum， 也可以给整个文件中所有文件生成checksum，生产的checksum 可以是MD系列，也可sha。

你可以参考​ 官网 http://jacksum.net/

Jacksum is a free and platform independent utility for computing and

verifying checksums, CRCs and hashes (message digests) as well as 

timestamps of files. Jacksum is written entirely in Java. 

A Java Runtime Environment (JRE), at least version 1.3.1 or any 

equivalent JRE is required. At least JRE 1.4.2 is recommended.

以下是一个给文件生产sha256.和MD5 checksum的示例

::Jacksum.bat "C:\Users\MingXin\Desktop\Temp" --> 要生产checksum的文件夹路径

::Temp-->checksum文件名

::Add by mingxin at 20160509 PM

::*******************start*************************

jacksum.bat "C:\Users\MingXin\Desktop\Temp" Temp

::*******************end*************************

​​

​jacksum.bat

@echo off

:: ###############################################################################

:: # Use this batch file for launching Jacksum easily from the command line #

:: # just by typing "jacksum". You can remove this comment block if you like. #

:: # #

:: # You need to edit the path below (C:\Program Files ...) so jacksum.jar #

:: # can be found! #

:: # Make also sure, that this batch file is reachable by the #

:: # operating system environment variable called PATH. #

:: # #

:: # The %* modifier is a unique modifier that represents all arguments #

:: # passed in a batch file (e. g. %1 %2 %3 %4 %5 ...%5), but it may #

:: # not work on all Windows platforms. In this case just use the old syntax: #

:: # java -jar "C:\Program Files\Jacksum\jacksum.jar" %1 %2 %3 %4 %5 %6 %7 %8 %9 #

:: ###############################################################################

:: add by mingxin at 20160509 PM

:: 执行jacksum.jar 文件产生checksum

::###################################Start#########################################

java -jar jacksum.jar -a sha256 -f -r -w %1 > %2_object_Javasum_windows.sha256

java -jar jacksum.jar -a sha256 %2_object_Javasum_windows.sha256 > %2_summary_Javasum_windows.sha256

java -jar jacksum.jar -a md5sum -f -r -w %1 > MD5_object_Javasum_windows.md5

::移动checksum 文件到指定的目录checksum

move %2_object_Javasum_windows.sha256 %1

move %2_summary_Javasum_windows.sha256 %1

move MD5_object_Javasum_windows.md5 %1

::生成存放checksum _summary_Javasum_windows.sha256 文件夹Javachecksum

::移动checksum 文件到 Javachecksum

chdir %1

mkdir Javachecksum

chdir .

move %2_object_Javasum_windows.sha256 %1\Javachecksum

move %2_summary_Javasum_windows.sha256 %1\Javachecksum

move MD5_object_Javasum_windows.md5 %1\Javachecksum

::###################################End##########################################