for(long i=first;i<=end;i++)
{
//到现有的IP表里面比较
try{
FileReader fr1=new FileReader("C:\\test1\\first-end-int.txt");
BufferedReader br1=new BufferedReader(fr1);
try{
int j=0;
while(br1.ready()&&j==0)//while1
{
String[] firstendline;
firstendline=br1.readLine().split("\\s+");
//System.out.println("er"+firstendline[0]);
if(Long.parseLong(firstendline[0])<=(long)i&&Long.parseLong(firstendline[1])>=(long)i)
{
System.out.println("IP存在库中");
j++;
}
}
if(j==0)
System.out.println("yi"+ipend.longToIP(i));
}finally{
fr1.close();
}
}
catch(IOException e)
{
System.out.println("error333");
}
}***************
提示
java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Long.parseLong(Unknown Source)
at java.lang.Long.parseLong(Unknown Source)
at ipfindlack.main(ipfindlack.java:46)
Exception in thread "main" 应该是上面if(Long.parseLong(firstendline[0])<=(long)i&&Long.parseLong(firstendline[1])>=(long)i)
有错误
大家来帮忙
{
//到现有的IP表里面比较
try{
FileReader fr1=new FileReader("C:\\test1\\first-end-int.txt");
BufferedReader br1=new BufferedReader(fr1);
try{
int j=0;
while(br1.ready()&&j==0)//while1
{
String[] firstendline;
firstendline=br1.readLine().split("\\s+");
//System.out.println("er"+firstendline[0]);
if(Long.parseLong(firstendline[0])<=(long)i&&Long.parseLong(firstendline[1])>=(long)i)
{
System.out.println("IP存在库中");
j++;
}
}
if(j==0)
System.out.println("yi"+ipend.longToIP(i));
}finally{
fr1.close();
}
}
catch(IOException e)
{
System.out.println("error333");
}
}***************
提示
java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Long.parseLong(Unknown Source)
at java.lang.Long.parseLong(Unknown Source)
at ipfindlack.main(ipfindlack.java:46)
Exception in thread "main" 应该是上面if(Long.parseLong(firstendline[0])<=(long)i&&Long.parseLong(firstendline[1])>=(long)i)
有错误
大家来帮忙
楼主【cnhuai】截止到2008-06-22 16:16:32的历史汇总数据(不包括此帖):
注册日期:2008-4-17
上次登录:2008-6-18
发帖数:45 发帖分:918
结贴数:39 结贴分:798
结贴率:86.67% 结分率:86.93%
楼主加油
!
我刚看了 不空
谢谢了java2000_net