java获取配置文件.properties中的数据

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/nayi_224/article/details/82734332

方法太多，只写一种比较简单的。
文件test1.properties内容

test1 = 123;
test2=321

        Properties prop = new Properties();
        prop.load(new FileInputStream("src/test1.properties"));
        System.out.println(prop.get("test1"));

输出

123;

简单封装一下，完整代码

package propertis.test;

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

public class Test {

    /**
     * @param args
     * @throws IOException 
     * @throws FileNotFoundException 
     */
    public static void main(String[] args) throws FileNotFoundException, IOException {
        // TODO Auto-generated method stub

        Properties prop = new Properties();
        prop.load(new FileInputStream("src/test1.properties"));
        System.out.println(prop.get("test1"));

        System.out.println(ProUtil.getTest1Value("test1"));
        System.out.println(ProUtil.getTest1Value("test2"));
    }

}

class ProUtil{
    private static Properties prop = new Properties();
    static{
        try {
            prop.load(new FileInputStream("src/test1.properties"));
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public static Object getTest1Value(String key){
        return prop.get(key);
    }
}

输出

123;
123;
321