import java.io.*;
import java.util.Properties;
public class NewClass {
public static void main(String args[]) throws IOException {
Properties p = new Properties();
p.load(new FileInputStream("DBDriverInfo.properties"));
String url=p.getProperty("url");
String user=p.getProperty("username");
String pass=p.getProperty("password");
System.out.println(url+"\n"+user+"\n"+pass);
}
}
尽管文件
DBDriverInfo.properties
与当前目录相同,但仍会引发以下异常。Exception in thread "main" java.io.FileNotFoundException: DBDriverInfo.properties (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:97)
at NewClass.main(NewClass.java:7)
相对路径在使用命令行界面中的javac
编译时可以正常工作。但是在NetBeans中会引发异常。