java获取配置文件.properties中的数据

浅浅的花香味﹌ 2021-09-27 11:00 324阅读 0赞

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