Apache Commons's Commons-configuration

Apache Commons Configuration introduction and simple code

Apache Commons Configuration The latest version is 2.0alpha, for security purposes, we use the 1.1 official version, the main function is to read the resource files, each file format has a corresponding class, as follows:

· Properties Files

· XML Documents

· Windows INI files

· Property List Files (plist)

· JNDI

· JDBC Datasource

· System Properties

· Applet Parameters

· Servlet Parameters

The use of configuration can be relatively simple to get some information, a simple source code example:

Packagetest.ffm83.commons.configuration;

Importorg.apache.commons.configuration.CompositeConfiguration;

Importorg.apache.commons.configuration.ConfigurationException;

Importorg.apache.commons.configuration.PropertiesConfiguration;

/**

* Simple configuration via commons configurations

*

* @author Fan Fangming

*/

Public Classconfigurationusage {

public static void Main (string[] args) {

String Jdbcurl =propmanager.getinstance (). GetProperty ("Jdbc.cms.url");

String jdbcusername =propmanager.getinstance (). GetProperty (

"Jdbc.cms.username");

String Jdbcpassword =propmanager.getinstance (). GetProperty (

"Jdbc.cms.password");

System.out.println ("Jdbcurl:" + jdbcurl);

System.out.println ("Jdbcusername:" + jdbcusername);

System.out.println ("Jdbcpassword:" + Jdbcpassword);

}

Private Configurationusage () {

}

private static Configurationusagepropmanager;

Public synchronized Staticconfigurationusage getinstance () {

if (Propmanager = = null) {

Propmanager = Newconfigurationusage ();

}

return propmanager;

}

public static compositeconfigurationconfig = new Compositeconfiguration ();

static {

try {

Config.addconfiguration (Newpropertiesconfiguration (

"Ffm.properties"));

} catch (ConfigurationException e) {

E.printstacktrace ();

}

}

public string GetProperty (string key) {

return config.getstring (key);

}

}

The results of the operation are as follows:

Jdbcurl:root

Jdbcusername:fanfangming

Jdbcpassword:ffm

The contents of the "ffm.properties" configuration file are as follows:

Jdbc.cms.url=root

Jdbc.cms.username=fanfangming

Jdbc.cms.password=ffm

Apache Commons configuration file processing for XML is also very quick and easy, the following is the source code to read XML with the configuration

Package test.ffm83.commons.configuration;

import org.apache.commons.configuration.ConfigurationException;

import org.apache.commons.configuration.XMLConfiguration;

/**

 * through Commons Configuration for a simple XML Configuration

* XML can be in Chinese, or in English, but not full-width characters

 * @author Fan Fangming

*/

Public class Configurationxmlusage {

Public static void main (string[] args) {

Stringfile = "Ffm.xml";

Try {

Xmlconfigurationconfig = newxmlconfiguration (file);

System. out. println (" config file "+ file+" load succeeded ");

System. out. println (" company Name:" + config.getstring ( " company name") "));

System. out. println (" person Name:" + config.getstring (" application configuration parameter . Name of person "));

System. out. println (" worker Number:" + config.getstring (" application configuration parameters . Workno "));

System. out. println (" Office Hours:" + config.getstring (" application configuration Parameters . Attendance Time . Working Hours "));

}catch(Configurationexceptione) {

E.printstacktrace ();

}

}

}

The operation results are as follows

Configuration file Ffm.xml loaded successfully

Company Name: China Telecom

Person Name: Fan Fangming

Worker Number: 31000696

Working hours: 08:30:00

The configuration file Ffm.xml content is as follows:

<? XML version="1.0"encoding="Utf-8"?>

< project Configuration >　　

< Company Name > China Telecom </ company name >

　　< Application Configuration Parameters >

< Name of person > Fan Fangming </ person name >

< Workno >31000696</workno>

　　　　< Attendance Time >

　　　　　　< Working Hours >08:30:00</ Work hours >

　　　　　　< Time off >17:00:00</ time off >

　　　　　　< late miners time dividing point >08:45:00</ late miners time demarcation point >

　　　　</ Attendance Time >

　　</ Application Configuration Parameters >

</ project Configuration >

Apache Commons's Commons-configuration