Shulou(Shulou.com)06/02 Report--

Today, I will talk to you about how to use ini4j to modify the ini configuration file in java, many people may not know much about it. In order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

Definition: the ini file is mainly composed of three parts, paramaters, section and comment, in which paramaters is composed of key-value pairs, which is used to store data, section is a block, each block has its own key-value pair, and comment is a comment, marking and interpreting paramaters and section.

Using the utility class ini4j to introduce dependent jar packages

Org.ini4j

Ini4j

0.5.4

Create an instance object of the .ini file (optional, I do this for testing convenience) @ Data

@ AllArgsConstructor

@ NoArgsConstructor

Public class IniFileEntity {

Private String section

Private String key

Private String value

}

Create the .ini file / / I wrote this in the utility class (Ini4jUtils)

Public static boolean creatIniFile (String filePath,List filecontent) throws IOException {

File file = new File (filePath)

If (file.exists ()) {

Return false

}

File.createNewFile ()

Ini ini = new Ini ()

Ini.load (file)

/ / Save the file contents to the ini object

Filecontent.stream () .forEach ((entity)-> {

Ini.add (entity.getSection (), entity.getKey (), entity.getValue () = = null? ": entity.getValue ())

});

/ / Save the contents of the file to the file

Ini.store (file)

Return true

}

/ / Test

@ Test

Public void test () {

List list = Arrays.asList (new IniFileEntity ("ldap", "ip", "1.1.1.1")

New IniFileEntity ("ldap", "ipPort", "8567")

New IniFileEntity ("test", "isUsed", "true"))

System.out.println (Ini4jUtils.creatIniFile ("D:\ abc\\ test.ini", list))

}

Insert a picture description here to read the .ini file / * *

* store the contents of the file

, /

@ Data

Public class Ini4jFileVo {

Private String ip

Private String ipPort

Private String isUsed

}

/ * *

* read the contents of the ini file

* @ param iniFile ini file

The key in the * @ param fileContent ini file corresponds to the section,value in the file corresponding to one or more key values under the section of your file.

* @ return

* @ throws IOException

* @ throws NoSuchFieldException

* @ throws IllegalAccessException

, /

Public static Ini4jFileVo readIniFile (File iniFile, Map fileContent) throws IOException, NoSuchFieldException, IllegalAccessException {

Ini4jFileVo fileVo = new Ini4jFileVo ()

Ini ini = new Ini ()

Ini.load (iniFile)

Section section = null

Field field = null

For (String key: fileContent.keySet ()) {

Section = ini.get (key)

For (String value: fileContent.get (key)) {

Field = fileVo.getClass () .getDeclaredField (value)

Field.setAccessible (true)

Field.set (fileVo, section.get (value))

}

}

/ * *

* this is an abbreviated version

* Section section = ini.get ("ldap")

* fileVo.setIp (section.get ("ip"))

* fileVo.setIpPort (section.get ("port"))

*

* section = ini.get ("test")

* fileVo.setIsUsed (section.get ("isUsed"))

, /

Return fileVo

}

/ / Test

@ Test

Public void testReadFile () {

File file = new File ("D:\\ abc\\ test.ini")

Map fileContent = new HashMap ()

FileContent.put ("ldap", Arrays.asList ("ip", "ipPort"))

FileContent.put ("test", Arrays.asList ("isUsed"))

Ini4jFileVo fileVo = Ini4jUtils.readIniFile (file,fileContent)

System.out.println (fileVo)

}

/ / print the result-Ini4jFileVo (ip=1.1.1.1, ipPort=8567, isUsed=true)

Modify .ini file / * *

* modify the contents of the file

* @ param iniFile ini file

* @ param updateData updated data

* @ throws IOException

, /

Public static void updateIniFile (File iniFile,Map updateData) throws IOException {

Ini ini = new Ini ()

Ini.load (iniFile)

Section section = null

Map dataMap = null

For (String sect: updateData.keySet ()) {

Section = ini.get (sect)

DataMap = updateData.get (sect)

For (String key: dataMap.keySet ()) {

Section.put (key,dataMap.get (key) = = null? ":

DataMap.get (key))

}

}

Ini.store (iniFile)

}

@ Test

Public void testUpdateFile () {

/ / modify

File file = new File ("D:\\ abc\\ test.ini")

Map updateData = new HashMap ()

Map ldap = new

HashMap ()

Ldap.put ("ip", "8.8.8.8")

UpdateData.put ("ldap", ldap)

Ini4jUtils.updateIniFile (file,updateData)

Map fileContent = new HashMap ()

FileContent.put ("ldap", Arrays.asList ("ip", "ipPort"))

FileContent.put ("test", Arrays.asList ("isUsed"))

Ini4jFileVo fileVo = Ini4jUtils.readIniFile (file,fileContent)

System.out.println (fileVo)

}

/ / Test results-Ini4jFileVo (ip=8.8.8.8, ipPort=8567, isUsed=true)

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