bufferedwriter.jsp

来自「一本jsp自学教材」· JSP 代码 · 共 48 行

JSP
48
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<%@ page contentType="text/html; charset=gb2312" %>
<%@ page language="java" %>
<%@ page import="java.io.*" %> 
<HTML>
<HEAD>
<TITLE>BufferedWriter</TITLE>
</HEAD>
<BODY>
<% 
String path=request.getRealPath("/");
//获取要读取的文件
String nameOfFile =path +"poem.txt"; 
String newFile=path+"Forever.txt";
try{    
   FileReader fr=new FileReader(nameOfFile);
   //建立缓冲输入流
   BufferedReader br=new BufferedReader(fr);
   File fff=new File(newFile);
   FileWriter fw=new FileWriter(fff);
   BufferedWriter bw=new BufferedWriter(fw);
   String aline;
   while((aline=br.readLine())!=null)   //判断是否读到结尾
   {      
      bw.write(aline);
      bw.newLine();
   }
   br.close();
   bw.close();
   
   FileReader fr2=new FileReader(newFile);  //要读取新写的文件。
   BufferedReader br2=new BufferedReader(fr2);
   String lin;
   out.print("Read from "+newFile+"<BR>");
   out.print("<B>Forever:</B><BR>");
   while((lin=br2.readLine())!=null)
   {
      out.print(lin+"<BR>");
   }
   br2.close();
 }
catch(IOException e)
{ 
out.println(e.getMessage()); 
} 
%> 
</BODY>
</HTML>

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