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采用commons-configuration包實現屬性文件讀取的工具類
代碼如下:
package com.yanek.base;
import org.apache.commons.configuration.CompositeConfiguration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
public class PropManager {
/**
* @param args
*/
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);
System.out.println(PropManager.getInstance());
System.out.println(PropManager.getInstance());
}
private PropManager() {
}
private static PropManager propManager;
public synchronized static PropManager getInstance() {
if (propManager == null) {
propManager = new PropManager();
}
return propManager;
}
public static CompositeConfiguration config = new CompositeConfiguration();
static {
try {
config.addConfiguration(new PropertiesConfiguration("jdbc.properties"));
} catch (ConfigurationException e) {
e.printStackTrace();
}
}
public String getProperty(String key)
{
return config.getString(key);
}
}
測試輸出:
jdbcUrl:jdbc:mysql://127.0.0.1:3306/easycms?characterEncoding=UTF8
jdbcUsername:root
jdbcPassword:root
com.yanek.base.PropManager@174cc1f
com.yanek.base.PropManager@174cc1f
使用的包: commons-configuration-1.6.jar
幾點說明:
1. 采用了單態設計模式,
2.屬性文件在classpath目錄下.
3. 采用commons-configuration-1.6.jar來讀取屬性文件
jdbc.properties文件:
jdbc.cms.url=jdbc:mysql://127.0.0.1:3306/easycms?characterEncoding=UTF8
jdbc.cms.username=root
jdbc.cms.password=root
最後更新：2017-04-04 07:03:44