10.4.1 读取文件内容

<%@ page contentType="text/html; charset=gb2312" import="java.io.*"%> 
<%
try
{
//使用ServletContext装入文件资源
InputStream in=getServletContext().getResourceAsStream("/file.txt");
String file="";
int temp=0; 
while((temp=in.read())!=-1)
{
file+=(char)temp;
}
//关闭输入流
in.close();
out.println(new String(file.getBytes("iso-8859-1")));  
out.flush();
}
catch(Exception e)
{
out.println(e);
e.printStackTrace();
}
%>

<%@ page contentType="text/html; charset=gb2312" import="java.io.*" buffer="64kb"%> 
<%
try
{
InputStream in=getServletContext().getResourceAsStream("/file.txt");
String file="";
String temp="";

BufferedReader  buffer=new BufferedReader(new 
InputStreamReader(new BufferedInputStream(in)));
while((temp=buffer.readLine())!=null)
{
file+=temp;
}  
buffer.close();
in.close();
out.println(file);
out.flush();
}
catch(Exception e)
{
out.println(e);
e.printStackTrace();
}
%>

<%@ page contentType="text/html; charset=gb2312" import="java.io.*" buffer="64kb"%> 
<%
try
{
BufferedReader in=new BufferedReader(new FileReader("c:\\UserSession.java"));
String file="";
String temp="";
while((temp=in.readLine())!=null)
{
file+=temp;
}  
in.close();
out.println(file);
out.flush();
}
catch(Exception e)
{
out.println(e);
e.printStackTrace();
}
%>