package ccutse.DB;
import java.util.*;
import java.net.*;
import java.io.*;public class ReadProp {
private String user,psw,url,driver;
private int maxCon,minCon;
public ReadProp() { }
public static void main(String[] args) {
ReadProp readprop = new ReadProp();
InputStream in=null;
try{
in=readprop.getClass().getResourceAsStream("c:\\db.properties");
if(in==null)
System.out.println("in is null");
}
Properties prop=new Properties();
try{
prop.load(in);
}
catch(Exception e){
System.out.println("装载失败");
}
}
}java.lang.NullPointerException at java.io.Reader.<init>(Reader.java:61) at java.io.InputStreamReader.<init>(InputStreamReader.java:80) at java.util.Properties.load(Properties.java:266) at ccutse.DB.ReadProp.main(ReadProp.java:39)in is null装载失败
我用的是JBuilder2005,c:\\db.properties中的内容是 a=123
为什么会出现错误啊????
import java.util.*;
import java.net.*;
import java.io.*;public class ReadProp {
private String user,psw,url,driver;
private int maxCon,minCon;
public ReadProp() { }
public static void main(String[] args) {
ReadProp readprop = new ReadProp();
InputStream in=null;
try{
in=readprop.getClass().getResourceAsStream("c:\\db.properties");
if(in==null)
System.out.println("in is null");
}
Properties prop=new Properties();
try{
prop.load(in);
}
catch(Exception e){
System.out.println("装载失败");
}
}
}java.lang.NullPointerException at java.io.Reader.<init>(Reader.java:61) at java.io.InputStreamReader.<init>(InputStreamReader.java:80) at java.util.Properties.load(Properties.java:266) at ccutse.DB.ReadProp.main(ReadProp.java:39)in is null装载失败
我用的是JBuilder2005,c:\\db.properties中的内容是 a=123
为什么会出现错误啊????
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货