【Java】+操作配置文件+Properties方式读取

 1     @Test
 2     public void test2() throws IOException {
 3         Properties pro = new Properties(); //这个包 java.util.Properties
 4         // step1 加载文件
 5         pro.load(new FileReader("D:\\IDEA\\my\\ConnectServers\\src\\zgx_abc.txt"));
 6         // step2 根据键找对应的值
 7         System.out.println(pro.getProperty("a1"));
 8         System.out.println(pro.getProperty("a2"));
 9         System.out.println(pro.getProperty("a3"));
10     }