package?org.csource.common;

import?java.io.IOException;

/**
?*?Freeware?from:
?*?Roedy?Green
?*?Canadian?Mind?Products
?*?#327?-?964?Heywood?Avenue
?*?Victoria?BC?Canada?V8V?2Y5
?*?tel:（250）?361-9093
?*?mailto:roedy@mindprod.com
?*/

/**
?*?Encode?arbitrary?binary?into?printable?ASCII?using?base64?encoding.
?*?very?loosely?based?on?the?base64?Reader?by
?*?Dr.?Mark?Thornton
?*?Optrak?Distribution?Software?Ltd.
?*?http://www.optrak.co.uk
?*?and?Kevin?Kelley‘s??http://www.ruralnet.net/~kelley/java/base64.java
?*
?*?base64?is?a?way?of?encoding?8-bit?characters?using?only?ASCII?printable
?*?characters?similar?to?UUENCODE.??UUENCODE?includes?a?filename?where?base64?does?not.
?*?The?spec?is?described?in?RFC?2045.??base64?is?a?scheme?where
?*?3?bytes?are?concatenated?then?split?to?form?4?groups?of?6-bits?each;?and
?*?each?6-bits?gets?translated?to?an?encoded?printable?ASCII?character?via?a
?*?table?lookup.??An?encoded?string?is?therefore?longer?than?the?original?by
?*?about?1/3.??The?“=“?character?is?used?to?pad?the?end.??base64?is?used
?*?among?other?things?to?encode?the?user:password?string?in?an
?*?Authorization:?header?for?HTTP.??Don‘t?confuse?base64?with
?*?x-www-form-urlencoded?which?is?handled?by
?*?Java.net.URLEncoder.encode/decode
?*?If?you?don‘t?like?this?code?there?is?another?implementation?at?http://www.ruffboy.com/download.htm
?*?Sun?has?an?undocumented?method?called?sun.misc.base64Encoder.encode.
?*?You?could?use?hex?simpler?to?code?but?not?as?compact.
?*
?*?If?you?wanted?to?encode?a?giant?file?you?could?do?it?in?large?chunks?that
?*?are?even?multiples?of?3?bytes?except?for?the?last?chunk?and?append?the?outputs.
?*
?*?To?encode?a?string?rather?than?binary?data?java.net.URLEncoder?may?be?better.?See
?*?printable?characters?in?the?Java?glossary?for?a?discussion?of?the?differences.
?*
?*?version?1.4?2002?February?15??--?correct?bugs?with?uneven?line?lengths
?*??????????????????????????????????allow?you?to?configure?line?separator.
?*??????????????????????????????????now?need?base64?object?and?instance?methods.
?*??????????????????????????????????new?mailing?address.
?*?version?1.3?2000?September?12?--?fix?problems?with?estimating?output?length?in?encode
?*?version?1.2?2000?September?09?--?now?handles?decode?as?well.
?*?version?1.1?1999?December?04?--?more?symmetrical?encoding?algorithm.
?*?????????????????????????????????more?accurate?StringBuffer?allocation?size.
?*?version?1.0?1999?December?03?--?posted?in?comp.lang.java.programmer.
?*?Futures?Streams?or?files.
?*/

public?class?base64
{

???/**
????*?how?we?separate?lines?e.g.?\n?\r\n?\r?etc.
????*/
???private?String?lineSeparator?=?System.getProperty（?“line.separator“?）;

???/**
????*?max?chars?per?line?excluding?lineSeparator.??A?multiple?of?4.
????*/
???private?int?lineLength?=?72;

???private?char[]?valueToChar?=?new?char[64];

???/**
????*?binary?value?encoded?by?a?given?letter?of?the?alphabet?0..

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\
?????文件????????1504??2017-04-12?11:18??fastdfs-client-java\.classpath
?????文件????????1332??2017-04-12?22:17??fastdfs-client-java\.project
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\.settings\
?????文件?????????430??2017-04-12?11:18??fastdfs-client-java\.settings\org.eclipse.jdt.core.prefs
?????文件??????????90??2017-04-12?11:15??fastdfs-client-java\.settings\org.eclipse.m2e.core.prefs
?????文件?????????333??2017-04-12?11:18??fastdfs-client-java\.settings\org.eclipse.wst.common.component
?????文件?????????172??2017-04-12?11:18??fastdfs-client-java\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件?????????395??2017-04-12?11:15??fastdfs-client-java\pom.xml
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\main\
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\main\java\
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\main\java\org\
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\main\java\org\csource\
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\main\java\org\csource\common\
?????文件???????16789??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\common\base64.java
?????文件????????3721??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\common\IniFileReader.java
?????文件?????????502??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\common\MyException.java
?????文件?????????972??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\common\NameValuePair.java
?????目錄???????????0??2017-04-13?00:06??fastdfs-client-java\src\main\java\org\csource\fastdfs\
?????文件????????5122??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\ClientGlobal.java
?????文件?????????784??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\DownloadCallback.java
?????文件????????1039??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\DownloadStream.java
?????文件????????2649??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\FileInfo.java
?????文件???????17377??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\ProtoCommon.java
?????文件????????1135??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\ProtoStructDecoder.java
?????文件????????1273??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\ServerInfo.java
?????文件???????65791??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\StorageClient.java
?????文件???????25319??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\StorageClient1.java
?????文件????????1532??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\StorageServer.java
?????文件????????1947??2017-04-12?11:23??fastdfs-client-java\src\main\java\org\csource\fastdfs\Structbase.java
............此處省略90個文件信息