Java中常用的工具类整理

声明：本文转自：| programcreek.com/2015/12/top-10-java-utility-classes/

1.org.apache.commons.io.IOUtils

closeQuietly()  
toString()  
copy()  
toByteArray()  
write()  
toInputStream()  
readLines()  
copyLarge()  
lineIterator()  
readFully() 

2.org.apache.commons.io.FileUtils

deleteDirectory()  
readFileToString()  
deleteQuietly()  
copyFile()  
writeStringToFile()  
forceMkdir()  
write()  
listFiles()  
copyDirectory()  
forceDelete()

3.org.apache.commons.lang.StringUtils

isBlank()  
isNotBlank()  
isEmpty()  
isNotEmpty()  
equals()  
join()  
split()  
EMPTY  
trimToNull()  
replace()  

4.org.apache.http.util.EntityUtils

toString()  
consume()  
toByteArray()  
consumeQuietly()  
getContentCharSet()  

5.org.apache.commons.lang3.StringUtils

isBlank()  
isNotBlank()  
isEmpty()  
isNotEmpty()  
join()  
equals()  
split()  
EMPTY  
replace()  
capitalize()  

6.org.apache.commons.io.FilenameUtils

getExtension()  
getBaseName()  
getName()  
concat()  
removeExtension()  
normalize()  
wildcardMatch()  
separatorsToUnix()  
getFullPath()  
isExtension() 

7.org.springframework.util.StringUtils

hasText()  
hasLength()  
isEmpty()  
commaDelimitedListToStringArray()  
collectionToDelimitedString()  
replace()  
delimitedListToStringArray()  
uncapitalize()  
collectionToCommaDelimitedString()  
tokenizeToStringArray()  

8.org.apache.commons.lang.ArrayUtils

contains()  
addAll()  
clone()  
isEmpty()  
add()  
EMPTY_BYTE_ARRAY  
subarray()  
indexOf()  
isEquals()  
toObject()  

9.org.apache.commons.lang.StringEscapeUtils

escapeHtml()  
unescapeHtml()  
escapeXml()  
escapeSql()  
unescapeJava()  
escapeJava()  
escapeJavaScript()  
unescapeXml()  
unescapeJavaScript() 

10.org.apache.commons.collections.CollectionUtils

isEmpty()  
isNotEmpty()  
select()  
transform()  
filter()  
find()  
collect()  
forAllDo()  
addAll()  
isEqualCollection() 

11.org.apache.commons.lang3.ArrayUtils

contains()  
isEmpty()  
isNotEmpty()  
add()  
clone()  
addAll()  
subarray()  
indexOf()  
EMPTY_OBJECT_ARRAY  
EMPTY_STRING_ARRAY  

12.org.apache.commons.beanutils.PropertyUtils

getProperty()  
setProperty()  
getPropertyDescriptors()  
isReadable()  
copyProperties()  
getPropertyDescriptor()  
getSimpleProperty()  
isWriteable()  
setSimpleProperty()  
getPropertyType()  

13.org.apache.commons.beanutils.BeanUtils

copyProperties()  
getProperty()  
setProperty()  
describe()  
populate()  
copyProperty()  
cloneBean()