工具类https://pan.baidu.com/s/1j1zaz0MdozrI-dQgpOhIZA

存放地址 Java-Java常见工具包

Base64.java  图片转字符流

Base64DecodingException.java

CConst.java

CharTools.java

ConfigHelper.java

Counter.java

CTool.java

DateHandler.java

DateUtil.java

DealString.java

DebugOut.java

Dom4jHelper.java

Escape.java

ExecHelper.java

FileHelper.java

FileUploadUtil.java

FileUtil.java

ftp二进制与ascii传输方式区别.txt

IPDeal.java

Md5.java

MD5Encrypt.java

MyFileFilter.java

PropsUtil.java

RegExUtil.java

SimpleConfig.java

StringHelper.java

ThumbnailGenerator.java

UploadHelper.java

ExcelUtil   转Excel文件工具类

PDfUtil