<%@ page import="java.io.*" pageEncoding="utf-8" %><%!
// 數組清零
void empty(byte[] buffer) {
for (int i = 0; i < buffer.length; i++) {
buffer[i] = 0;
}
}
%><!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>File Operations</title>
<style>
body {
line-height: 1.4em; /* 設置行高 */
}
</style>
</head>
<body>
<%
File file = new File("F:/My Data/2015/October/HuangShiqiu.txt");
File file2 = new File("F:/My Data/2016/September/java_copied_file.txt");
FileInputStream rf = new FileInputStream(file);
FileOutputStream wf = new FileOutputStream(file2);
byte[] buffer = new byte[10];
int length;
out.println("<strong>文件的內容為: </strong><br>");
while ((length = rf.read(buffer)) != -1) { // 若length=-1, 則文件已讀取完畢
String str = new String(buffer);
str = str.replace("\n", "<br>");
out.print(str);
wf.write(buffer, 0, length); // 寫入文件
empty(buffer);
}
rf.close();
wf.close();
out.println("<br><strong>文件已複製</strong>");
%></body>
</html>
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【程序】Java讀寫文本文件
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