java读取properties配置文件方法（一）

为了修改项目参数方便，需要使用properties配置文件；

首先是需要三个jar包(不同的jar包，读取配置文件的方式会有所不同，这里使用的是2.6版本的jar包)

commons configurations

依赖包

commons-lang

commons-logging

然后开始就可以编写读取文件的代码了

现在先简单说一下第一种，如有不足之处欢迎指教。

package properties;

import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;

public class PropertiesConfig{
/**
* read ip and port from the file with PATH:ustc/com/source/global.properties
*
*/

private static String fileName = "ustc/com/source/global.properties";

/**
* @return port
* @throws ConfigurationException
*/
public static Integer InitPort() throws ConfigurationException {

Configuration config = new PropertiesConfiguration(fileName);
Integer port = config.getInt("port");

return port;
}
/**
*
* @return ip
* @throws ConfigurationException
*/
public static String InitIP() throws ConfigurationException {

Configuration config = new PropertiesConfiguration(fileName);
String IP = config.getString("IP");

return IP;
}
/**
*
* for test
*/
public static void main(String argc[]) {

Integer port = null;
String ip = null;
try {
port = PropertiesConfig.InitPort();

ip = PropertiesConfig.InitIP();
} catch (ConfigurationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

System.out.println(port + ip);

}
}