前言
java+javascript，沒用上數據庫，做了一個簡簡單單的jsp上傳小功能，就是記錄一下，對于這個小項目有什么建議，歡迎指出不足之處 (-_+)
PS:從我的包名看得出，我用過很多前輩們的代碼，基本上都是東湊西拼，各個部分代碼的出處就不一一列出了，能看就行！
運行環境：
Java EE + Tomcat 7.0
項目結構
( Dynamic Web Project )
src各部分代碼
1. com.bijian.study.Upload.java
package com.bijian.study;import java.io.File;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Iterator;import java.util.List;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.FileItem;import org.apache.commons.fileupload.FileUploadException;import org.apache.commons.fileupload.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload;import com.test.util.FileUtil;@SuppressWarnings("serial")public class Upload extends HttpServlet { private final String SEP = File.separator; private FileUtil fUtil = new FileUtil(); @SuppressWarnings("unchecked") public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String savePath = this.getServletConfig().getServletContext() .getRealPath(""); savePath = savePath + "/uploads/"; File f1 = new File(savePath); System.out.println(savePath); if (!f1.exists()) { f1.mkdirs(); } DiskFileItemFactory fac = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(fac); upload.setHeaderEncoding("utf-8"); String package_path = request.getParameter("save_path"); String remark = request.getParameter("remark"); List fileList = null; try { fileList = upload.parseRequest(request); } catch (FileUploadException ex) { return; } Iterator<FileItem> it = fileList.iterator(); String name = ""; String extName = ""; String sysDate = ""; String fileFrom = ""; while (it.hasNext()) { FileItem item = it.next(); if (!item.isFormField()) { long size = item.getSize(); String type = item.getContentType(); name = item.getName(); if (name == null || name.trim().equals("")) { continue; } if (name.lastIndexOf(".") >= 0) { extName = name.substring(name.lastIndexOf(".")); } File file = null; do { file = new File(savePath + name + extName); } while (file.exists()); File saveFile = new File(savePath + name); fileFrom = saveFile.getAbsolutePath(); Date now = new Date(); SimpleDateFormat dateFormat = new SimpleDateFormat( "yyyy/MM/dd HH:mm:ss"); sysDate = dateFormat.format(now); try { item.write(saveFile); } catch (Exception e) { e.printStackTrace(); } } } remark = ChangeDeocode(remark); package_path = ChangeDeocode(package_path); String keep_path = "C:" +SEP+ package_path+SEP+name; String save_path = "C:" +SEP+ package_path; if(!fUtil.isFileExist(save_path)){ fUtil.mkDir("C:" +SEP+ package_path); } fUtil.copyFile(fileFrom, keep_path); if(fUtil.isFileExist(keep_path)){ fUtil.appendMethod(name + "|" + sysDate + "|" + remark+"|"+save_path); } response.getWriter().print(name + "http://" + sysDate + "http://" + remark); } public String ChangeDeocode(final String dataStr) { String ToDeocode = ""; if (dataStr.contains("%")) { char[] charArray = dataStr.toCharArray(); int ToChangeIndex = 0; for (int i = 0; i < charArray.length; i++) { if (i <= ToChangeIndex && i != 0) { continue; } else { if (charArray[i] == '%' && charArray[i + 1] == 'u' && i + 5 < charArray.length) { char[] tempArray = new char[] { charArray[i], charArray[i + 1], charArray[i + 2], charArray[i + 3], charArray[i + 4], charArray[i + 5] }; ToDeocode += decodeUnicode(String.valueOf(tempArray)); ToChangeIndex = i + 5; } else { ToDeocode += charArray[i]; continue; } } } } return ToDeocode; } public String decodeUnicode(final String dataStr) { int start = 0; int end = 0; final StringBuffer buffer = new StringBuffer(); while (start > -1) { end = dataStr.indexOf("http://u", start + 2); String charStr = ""; if (end == -1) { charStr = dataStr.substring(start + 2, dataStr.length()); } else { charStr = dataStr.substring(start + 2, end); } char letter = (char) Integer.parseInt(charStr, 16); // 16進制parse整形字符串。 buffer.append(new Character(letter).toString()); start = end; } return buffer.toString(); }}2. com.test.tag.MyIteratorTag.java
package com.test.tag;import java.io.File;import java.io.IOException;import java.util.List;import javax.servlet.jsp.JspException;import javax.servlet.jsp.JspWriter;import javax.servlet.jsp.tagext.TagSupport;public class MyIteratorTag extends TagSupport { private final String SEP = File.separator; private List<String[]> files = null; private List<String[]> data = null; private int columnSize = 0; @Override public int doStartTag() throws JspException { // TODO Auto-generated method stub JspWriter out = this.pageContext.getOut(); StringBuffer sf = new StringBuffer(); sf.append("<table style='width:1000;' border='1' cellspacing='0' cellpadding='10'>"); sf.append("<tr><td>"); sf.append("<table style='width:200;' border='0' cellspacing='0'>"); if (this.data == null || this.data.isEmpty()) { sf.append(" <tr>"); sf.append(" <td>"); sf.append(" <B> No Valid Data List is NULL </B> "); sf.append(" </td>"); sf.append(" </tr>"); } else { for (int i = 0; i < data.size(); i++) { String[] trs = data.get(i); sf.append("<tr>"); for (int j = 0; j < trs.length; j++) { switch (j) { case 0: sf.append("<td>"); sf.append("<a href='javascript:ReStartJSP("+i+")'>"+trs[j]+"</a>"); sf.append("<input type='hidden' value='"+trs[j]+"' id='hidden_"+i+"'/>"); sf.append("</td>"); break; case 1: sf.append("<td>"); sf.append("/t"+trs[j]); sf.append("</td>"); break; case 2: sf.append("<td>"); sf.append("
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