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Java類訪問配置檔案

package com.dashuo.da.common.function;

import java.io.FileInputStream;
import java.util.Properties;

public class MongoTask2 {
	/**
	 * 
	 * 主測試方法
	 * 
	 */
	public static void main(String[] args) {

		MongoTask2 jdbc = new MongoTask2();

		jdbc.getParameter();

	}

	private static Properties dbconfig = new Properties();

	private String tbl_project_data = null;

	private String tbl_create_time = null;

	static {

		try {
			// 方式一:
			/*InputStream in = MongoTask2.class.getClassLoader().getResourceAsStream("value.properties");

			dbconfig.load(in);*/
			
			// 方式二
			String realPath = MongoTask2.class.getClassLoader().getResource("value.properties").getPath();
			
			FileInputStream in = new FileInputStream(realPath);
			
			dbconfig.load(in);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

	/**
	 * 
	 * 獲取配置檔案db.properties中連線資料庫的引數
	 * 
	 */
	public void getParameter() {

		tbl_project_data = dbconfig.getProperty("ProjectData");

		tbl_create_time = dbconfig.getProperty("CreateTimeData");

		System.out.println(" MongoDB資料表:" + tbl_project_data + "  MongoDB資料建立時間表:" + tbl_create_time );

	}
}