JDBC配置文件

 1 public class Configmanafer{
 2 private static ConfigManager configNanager;
 3 //properties.load(InputStream)读属性文件
 4 private static Properties    pro;
 5 private ConfigManafer(){
 6 String configFile="database.properties";
 7 properties=new properties;
 8 InputStream in=ConfigManger.class.getClassLoader().getResourceAsStream(configFile);
 9 try{
10 properties.load(in);
11 in.close();
12 }
13 }
14 
15 public static ConfigManager getInstance(){
16 if(ConfigManager ){
17 configManager=new configManager();
18 }
19 return configManager;
20 }
21 //根据属性文件的key获取vaule
22 public String getString(String key){
23 return properties.getString();
24 
25 }
26 }