java 讀取src下文件方法

public void dd(){

InputStream in = this.getClass().getResourceAsStream("aa.properties");

if(in == null){

in = Thread.currentThread().getContextClassLoader().getResourceAsStream("aa.properties");

}

Properties pr = new Properties();

try{

pr.load(in);

String value = pr.getProperty("key");

System.out.println(value);

}catch(Exception e){}

}