📄 ex4_6b2.jsp
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<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import ="java.io.*" %>
<HTML>
<BODY bgcolor=cyan><FONT size=5>
<%File dir=new File("e:/lxjsp","Students");
dir.mkdir();
File f=new File(dir,"hello.txt");
try{
FileInputStream in=new FileInputStream(f);
BufferedInputStream bufferin=new BufferedInputStream(in);
out.println("文件存在，其内容是："+"<br>");
byte c[]=new byte[90];
int n=0;
while((n=bufferin.read(c))!=-1)
{
String temp=new String(c,0,n);
out.print(temp);
}
bufferin.close();
in.close();
}
catch(IOException e)
{
out.println("文件还没有建立");
FileOutputStream outfile=new FileOutputStream(f);
BufferedOutputStream bufferout=new BufferedOutputStream(outfile);
byte b[]="你们好,很高兴认识你们呀！<BR>nic to meet you".getBytes();
bufferout.write(b);
bufferout.flush();
bufferout.close();
outfile.close();
}
%>
</BODY>
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