重要的JSP代码集合(包括文件上传,下载,分页,数据库连接,验证码等)资源-CSDN文库

共47个文件

txt：30个

class：5个

xml：5个

JSP代码

常用代码

数据库连接

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重要JAVA代码.rar （47个子文件）

重要JAVA代码

下载文件.txt 668B

dom

TestDOMParser.java 3KB

new.xml 233B

student.xml 810B

lee

TestDOMParser.class 2KB

DOMCreate.class 3KB

DOMGenerate.class 3KB

DOMCreate.java 2KB

lib

xml-apis.jar 122KB

xercesImpl.jar 987KB

build.xml 641B

中文处理问题.txt 537B

验证码的生成.txt 7KB

如何把一个文件上传下到一个指定位置.txt 4KB

Html_Jsp页面如何对XML内容分页显示.txt 2KB

Hibernate.txt 734B

Servelt如何处理前台中的BASIC验证.txt 2KB

Servlet中如何处理多个文字表单提交.txt 1KB

SQL.txt 1KB

jsp分页.txt 3KB

如何从文件夹中把所有文件和文件夹分别列出来.txt 1KB

读取文件内容.txt 2KB

按扩展名列出所有文件.txt 1KB

Javabean+Jsp.txt 2KB

Spring.txt 448B

数据库的连接.txt 433B

Servelt如何访问文本文件和属性文件.txt 2KB

sax

XMLContentHandler.java 3KB

student.xml 810B

SAXParser.java 1KB

lee

XMLContentHandler.class 3KB

SAXParser.class 1KB

lib

xercesImpl.jar 987KB

build.xml 641B

Servlet中的访问记数器.txt 2KB

Cookie.txt 3KB

文件上传.txt 7KB

jsp.txt 1KB

如何给文件写内容.txt 1KB

JSTL.txt 3KB

Servelt中处理缓存.txt 201B

Jsp标签.txt 2KB

Servlet中如何从WEB的配置文件中读取属性值.txt 1KB

china.txt 343B

JavaScript.txt 213B

Servelt在设置的时间内自动转发页面.txt 598B

Session购物车.txt 2KB

////servlet 文件 package com.jspservletcookbook; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.oreilly.servlet.*; 还要把这个包放在LIB的目录中去. import com.oreilly.servlet.multipart.*; import java.util.*; public class UploadServlet1 extends HttpServlet { String web; public void init(){ web=this.getServletContext().getRealPath("/")+"data"; } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { throw new ServletException("GET method used with"+getClass().getName()+":post method requestird."); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { MultipartRequest mpr=new MultipartRequest( request,web,100*1024*1024 ); Enumeration enum=mpr.getFileNames(); response.setContentType("text/html"); PrintWriter out=response.getWriter(); for(int i=1;enum.hasMoreElements();i++){ out.println("Then name of upload file"+i+"is: "+mpr.getFilesystemName((String)enum.nextElement())+"<br><br>"); } } } 前台页面 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>LoadFile.html</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8">  </head> <body> <TABLE border="0"> <form action="UploadServlet1" method="post" enctype="multipart/form-data"> //必须这样写 <td valign="top"> <tr> <STRONG> Please choose your document: </STRONG> </td> <td> <INPUT type="file" name="file1"> </td> </tr> <TR> <TD> <INPUT type="submit" value="Upload File"> </TD> </TR> </form> </TABLE> </body> </html> ================================================================================================================== upload.jsp <%@ page language="java" import="java.util.*,java.sql.*,java.io.*,java.util.*,javax.servlet.*,javax.servlet.http.*" pageEncoding="gb2312"%> <html> <head> <title>upFile</title> </head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <body bgcolor=#ffffff> <%//response.setContentType("gb2312"); int MAX_SIZE=102400*102400; String rootPath; DataInputStream in=null; FileOutputStream fileOut=null; String remoteAddr=request.getRemoteAddr(); String serverName=request.getServerName(); String realPath=request.getRealPath(serverName); realPath=realPath.substring(0,realPath.lastIndexOf("\\")); rootPath=realPath+"\\upload\\"; String contentType=request.getContentType(); try{ if(contentType.indexOf("multipart/form-data")>=0){ in=new DataInputStream(request.getInputStream()); int formDataLength=request.getContentLength(); if(formDataLength>MAX_SIZE){ out.println("<P>上传的文件字节数不可以超过"+MAX_SIZE+"</P>"); return; } byte dataBytes[]=new byte[formDataLength]; int byteRead=0; int totalBytesRead=0; while(totalBytesRead<formDataLength){ byteRead=in.read(dataBytes,totalBytesRead,formDataLength); totalBytesRead+=byteRead; } String file=new String (dataBytes); String saveFile=file.substring(file.indexOf("filename=\"")+10); saveFile=saveFile.substring(0,saveFile.indexOf("\n")); saveFile=saveFile.substring(saveFile.lastIndexOf("\\")+1,saveFile.indexOf("\"")); int lastIndex=contentType.lastIndexOf("="); String boundary=contentType.substring(lastIndex+1,contentType.length()); String fileName=rootPath+saveFile; int pos; pos=file.indexOf("filename=\""); pos=file.indexOf("\n",pos)+1; pos=file.indexOf("\n",pos)+1; pos=file.indexOf("\n",pos)+1; int boundarLocation=file.indexOf(boundary,pos)-4; int startPos=((file.substring(0,pos)).getBytes()).length; int endPos=((file.substring(0,boundarLocation)).getBytes()).length; File checkFile=new File(fileName); if(checkFile.exists()){ out.println("<p>"+saveFile+"文件已经存在.</p>"); } File fileDir=new File(rootPath); if(!fileDir.exists()){ fileDir.mkdirs(); } fileOut=new FileOutputStream(fileName); fileOut.write(dataBytes,startPos,(endPos-startPos)); fileOut.close(); // String savefile=new String(request.getParameter("FILE1").getBytes("iso-8859-1"),"gb2312"); out.println("<p>http://localhost:7917/company/upload"+saveFile+"文件成功上载.</p>"+formDataLength); }else{ String conent=request.getContentType(); out.println("<p>上传的数据类型不是是multipart/form-data</p>"); } }catch(Exception e){ throw new ServletException(e.getMessage()); // out.println("上传文件Error!!!!"); } %> <br> </body> </html> 前台页面 <html> <head> <title>上传文件</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8">  </head> <body bgcolor="#ffffff" text="#000000"> <div align="center"> <p><b><font color="#ff6600">上传文件</font></b></p> <FORM METHOD="POST" ACTION="upload.jsp" ENCTYPE="multipart/form-data"> <INPUT TYPE="FILE" NAME="FILE1" SIZE="50"><BR> <INPUT TYPE="SUBMIT" VALUE="上传"> </FORM> </div> </body> </html>

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