需求:账号、密码、文件的路径或一些敏感性的信息,是不可以直接写在java里,因为很容易就被人反编译。所以要从properties或者是XML里。这里举其中一种
java写法如下:
package a; import java.util.Properties; import java.io.InputStream; import java.io.IOException; public class db { private static String param1; private static String param2; static { Properties prop = new Properties(); InputStream in = Object.class.getResourceAsStream( "/a/db.properties" ); try { prop.load(in); param1 = prop.getProperty( "userName" ).trim(); param2 = prop.getProperty( "passWord" ).trim(); } catch (IOException e) { e.printStackTrace(); } } private db() { } public static String getuserName() { return param1; } public static String getpassWord() { return param2; } public static void main(String[] args) { System.out.println(getuserName()); System.out.println(getpassWord()); } }
properties的写法如下:
userName = 321 passWord = 123