package cs.util;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.Properties;

/**

*

* @author JJ

*

*/

public class SetSystemProperty {

//属性文件的路径

static String profilepath="src/system.properties";

/**

* 采用静态方法

*/

private static Properties props = new Properties();

static {

try {

props.load(new FileInputStream(profilepath));

} catch (FileNotFoundException e) {

e.printStackTrace();

System.exit(-1);

} catch (IOException e) {

System.exit(-1);

}

} 

/**

* 读取属性文件中相应键的值

* @param key

* 主键

* @return String

*/

public static String getKeyValue(String key) {

return props.getProperty(key);

} 

}

package cs.util;

public class test {

	public static void main(String[] args) {

		// TODO Auto-generated method stub

       SetSystemProperty property=new SetSystemProperty();

       String name=property.getKeyValue("name");

       System.out.println(name);

	}

}

package cs.util;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.util.Properties;

/**

 *

 * @author JJ

 *

 */

public class SetSystemProperty {

	static Properties   props;

    public  void GetDBConfigStr()

	{

		   props   =  new  Properties();

		InputStream in;

		try{

			 in=this.getClass().getResourceAsStream("/system.properties");

		   	 props.load(in);

		}

		 catch(Exception e)

		{

			 System.out.print(e.getMessage());

			 return ;

		}

		if(props.isEmpty())

		{

			 return;

		}

	}

    public String getValueByKey(String key)

    {

		return props.get(key).toString();

    }

	public SetSystemProperty() {

		super();

		GetDBConfigStr();

	}

}