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功能:这是一个网页版的文件批量重命名
操作步骤:
输入文件所在的绝对路径,
输入你想要替换的关键字,
输入你想要用什么字符来替换他(可为空),
点击确定,文件将会批量被重命名,
点击撤回就会还原出起初的文件名字,
点击清空主要是一键清除文本框里面的内容。
总的有1个jsp,四个Java程序共同完成这个功能:
start.jsp(显示界面)
CodeFilter.java(过滤器,主要负责编码)
ReceiveStartServlet.java(接受启动,进行文件操作)
RevokeServlet.java(撤回操作Servlet)
ClearServlet.java(清空操作)
未操作前图:
运行start.js的效果图:
运行后文件显示图:
start.jsp代码:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <script> window.onload=function(){ var oBtn1=document.getElementById(‘btn1‘); var oBtn2=document.getElementById(‘btn2‘); var aInput=document.getElementsByTagName(‘input‘); var s=""; if(s==aInput[0].value){ if(<%=session.getAttribute("startPath")%>==null){ }else{ aInput[0].value=‘<%=session.getAttribute("startPath")%>‘; } }else{ alert("youzhi"); } if(s!=aInput[1].value){ aInput[1].value=‘<%=session.getAttribute("keyWords")%>‘; } if(s!=aInput[2].value){ aInput[2].value=‘<%=session.getAttribute("replaceWords")%> ‘; } oBtn1.onclick = function() { self.location.href = ‘../RevokeServlet‘; } oBtn2.onclick = function() { self.location.href = ‘../ClearServlet‘; } } </script> <style> body { background: RGBA(38, 38, 38, 1); font-size: 30px; font-family: 楷体; color: red; } div { height: 400px; width: 600px; border: 10px solid green; margin: 80px auto; text-align: center; border-radius: 35px 35px 35px 35px; padding-top: 45px; } p { font-size: 35px; } input { width: 60%; height: 20%; } .btn { width: 50px; } </style> </head> <body> <div> <form action="../ReceiveStartServlet" method="post"> 输入源路径:<input type="text" name="startPath"><br> 输入关键字:<input type="text" name="keyWords" /><br> 输入代替字:<input type="text" name="replaceWords" /><br> <input class="btn" type="submit" value="确认" /> <input id="btn1" class="btn" type="button" value="撤回" /> <input id="btn2" class="btn" type="button" value="清空" /><br> </form> </div> </body> </html>
ReceiveStartServlet.java
package com.hputt; import java.io.File; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.xml.ws.Response; /** * Servlet implementation class ReceiveStartServlet */ public class ReceiveStartServlet extends HttpServlet { private static final long serialVersionUID = 1L; private static String[] test; public static String[] test1; /** * @see HttpServlet#HttpServlet() */ public ReceiveStartServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse * response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doPost(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse * response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub System.out.println("进入doPost"); String startPath = request.getParameter("startPath"); String keyWords = request.getParameter("keyWords"); String replaceWords = request.getParameter("replaceWords"); request.getSession().setAttribute("startPath", startPath); request.getSession().setAttribute("keyWords", keyWords); request.getSession().setAttribute("replaceWords", replaceWords); try { sure(startPath, keyWords, replaceWords,response); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static void sure(String s1, String s2, String s3,HttpServletResponse response) throws Exception { File file = new File(s1); test = file.list(); test1 = new String[test.length]; for (int i = 0; i < test.length; i++) { test1[i] = test[i]; } // 遍历文件的名字 for (int i = 0; i < test.length; i++) { // 判断是不是有你想去除的关键字 if (test[i].indexOf(s2) != -1) { // 保存重命名后的文件名 test[i] = test[i].replace(s2, s3); } } File[] files = file.listFiles(); for (int i = 0; i < test.length;) { for (File f : files) { if (f.isFile()) { // 循环赋重命名后的名字 f.renameTo(new File(s1 + "/" + test[i++])); } } } response.sendRedirect("start/start.jsp"); } }
RevokeServlet.java
package com.hputt; import java.io.File; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class RevokeServlet */ public class RevokeServlet extends HttpServlet { private static final long serialVersionUID = 1L; private static String[] test = ReceiveStartServlet.test1; /** * @see HttpServlet#HttpServlet() */ public RevokeServlet() { super(); // TODO Auto-generated constructor stub } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doPost(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse * response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub String startPath = (String)request.getSession().getAttribute("startPath"); try { revoke(startPath,response); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static void revoke(String s1, HttpServletResponse response) throws Exception { // 重新赋回原来的名字 File file = new File(s1); File[] files = file.listFiles(); for (int i = 0; i < test.length;) { for (File f : files) { if (f.isFile()) { // 注意是test1 f.renameTo(new File(s1 + "/" + test[i++])); } } } response.sendRedirect("start/start.jsp"); } }
ClearServlet.java
package com.hputt; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class ClearServlet */ public class ClearServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public ClearServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doPost(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.getSession().removeAttribute("startPath"); request.getSession().removeAttribute("keyWords"); request.getSession().removeAttribute("replaceWords"); response.sendRedirect("start/start.jsp"); } }
CodeFilter.java
package com.hputt.filter; import java.io.IOException; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletRequest; /** * Servlet Filter implementation class CodeFilter */ public class CodeFilter implements Filter { /** * Default constructor. */ public CodeFilter() { // TODO Auto-generated constructor stub } /** * @see Filter#destroy() */ public void destroy() { // TODO Auto-generated method stub } /** * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain) */ public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { // TODO Auto-generated method stub // place your code here HttpServletRequest req = (HttpServletRequest) request; if ("post".equalsIgnoreCase(req.getMethod())) { req.setCharacterEncoding("utf-8"); } // pass the request along the filter chain chain.doFilter(request, response); } /** * @see Filter#init(FilterConfig) */ public void init(FilterConfig fConfig) throws ServletException { // TODO Auto-generated method stub } }
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原文地址:http://www.cnblogs.com/greatfish/p/5902114.html