JavaScript/Jsp 多圖上傳和上傳Excelx表到資料庫
實現目標:利用MyEclipse/jsp/jquery多種知識完成Excel表的上傳和多圖的上傳。
1.多圖上傳
準備工作需要新增4個jar包和css樣式,imgs圖片,js樣式到工程裡面。
index程式碼:
GetIdHeader程式碼:<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <head> <base href="<%=basePath%>"> <title>多張圖片上傳</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <link rel="stylesheet" type="text/css" href="css/dhtmlXVault.css" /> <script language="JavaScript" type="text/javascript" src="js/dhtmlXVault.js"></script> <script language="JavaScript" type="text/javascript"> var vault = null; function doOnLoad() { preLoadImages(); vault = new dhtmlXVaultObject(); vault.setServerHandlers("UploadHandler.jsp", "GetInfoHandler.jsp", "GetIdHandler.jsp"); vault.create("vault1"); } function preLoadImages(){ var imSrcAr = new Array("btn_add.gif","btn_clean.gif","btn_upload.gif","ico_file.png","ico_image.png","ico_sound.png","ico_video.png","ico_zip.png","pb_back.gif","pb_demoUload.gif","pb_empty.gif"); var imAr = new Array(0); for(var i=0;i<imSrcAr.length;i++){ imAr[imAr.length] = new Image(); imAr[imAr.length-1].src = "imgs/"+imSrcAr[i]; } } </script> <style> body {font-size:12px} .{font-family:arial;font-size:12px} h1 {cursor:hand;font-size:16px;margin-left:10px;line-height:10px} xmp {color:green;font-size:12px;margin:0px;font-family:courier;background-color:#e6e6fa;padding:2px} .hdr{ background-color:lightgrey; margin-bottom:10px; padding-left:10px; } </style> </head> <body onload="doOnLoad()"> <div style="color:#ff0000;font-size:12px;">* 目前支援的上傳格式 jpg,gif,bmp,png</div> <div id="vault1"></div> </body> </html>
<%@ page import="org.apache.commons.fileupload.*" %> <%@ page import="org.apache.commons.fileupload.servlet.*" %> <%@ page import="com.scand.fileupload.*" %> <%@ page import="java.io.*" %> <%@ page import="java.util.*" %> <% String id = request.getSession().getId().toString(); out.println(id); session.setAttribute("FileUpload.Progress."+id,"0"); %>
GetInfoHeader程式碼:
<%
out.println(session.getAttribute("FileUpload.Progress."
+ request.getParameter("sessionId").toString().trim()));
%>
UploadHandler程式碼:
downLoad程式碼:<%@ page import="org.apache.commons.fileupload.*" pageEncoding="UTF-8"%> <%@ page import="org.apache.commons.fileupload.servlet.*"%> <%@ page import="com.scand.fileupload.*"%> <%@ page import="java.io.*"%> <%@ page import="java.util.*"%> <% String uploadFolder = request.getRealPath("/" + "\\upload"); // Check that we have a file upload request boolean isMultipart = FileUpload.isMultipartContent(request); if (!isMultipart) { out.println("Use multipart form to upload a file!"); } else { String fileId = request.getParameter("sessionId").toString() .trim(); //建立資料工廠 FileItemFactory factory = new ProgressMonitorFileItemFactory( request, fileId); ServletFileUpload upload = new ServletFileUpload(factory); //從請求物件中獲得要上傳物件 List /* FileItem */items = upload.parseRequest(request); //迭代所有上傳的FileItem Iterator iter = items.iterator(); while (iter.hasNext()) { FileItem item = (FileItem) iter.next(); if (item.isFormField()) { //如果是表單物件再此處處理 } else { //處理上傳檔案 String fieldName = item.getFieldName(); String fileName = item.getName(); int i2 = fileName.lastIndexOf("\\"); if (i2 > -1) fileName = fileName.substring(i2 + 1); File dirs = new File(uploadFolder); if (!dirs.exists()) { dirs.mkdir(); } //dirs.mkdirs(); long l = System.currentTimeMillis(); String houzhui = fileName.substring(fileName .lastIndexOf(".")); fileName = l + houzhui; if (houzhui.equals(".jpg") || houzhui.equals(".gif") || houzhui.equals(".png") || houzhui.equals(".bmp") || houzhui.equals(".JPG") || houzhui.equals(".GIF") || houzhui.equals(".PNG") || houzhui.equals(".BMP")) { File uploadedFile = new File(dirs, fileName); item.write(uploadedFile); session.setAttribute("FileUpload.Progress." + fileId, "-1"); } else { session.setAttribute("FileUpload.Progress." + fileId, "-2"); } } } } %>
<%@page import="com.jspsmart.upload.SmartUpload"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
String fileName = request.getParameter("fileName");
if (fileName != null) {
fileName = fileName.replaceAll(basePath, "");
SmartUpload su = new SmartUpload();
su.initialize(pageContext);
su.downloadFile(fileName);
}
%>
<head>
<base href="<%=basePath%>">
<title>download</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript">
function d1(obj) {
window.location.href = "download.jsp?fileName=" + obj.src;
}
</script>
</head>
<body>
<form action="" name="baseForm">
<img alt="" src="upload/1478057251961.jpg" name="zyf1"
onclick="d1(this)"> <br> <img alt=""
src="upload/1478057251961.jpg" name="zyf2"> <br> <img
alt="" src="upload/1478057251961.jpg" name="zyf3"> <br>
</form>
</body>
</html>
效果:上傳成功後會傳到工程裡面的upload資料夾中
2.將Excel表單上傳到資料庫中
DBConnection程式碼:
package com.jredu.excel;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class DBConnection {
private static Connection con = null;
private static String driverName = "com.mysql.jdbc.Driver";
private static String userName = "root";
private static String userPasswd = "ffffff";
private static String dbName = "you";
private static String url = "jdbc:mysql://localhost/" + dbName
+ "?user=" + userName
+ "&password=" + userPasswd
+ "&useUnicode=true&characterEncoding=gbk";
public static Connection getConnection(){
try{
Class.forName(driverName);
con = DriverManager.getConnection(url);
}catch (Exception e) {
e.printStackTrace();
}
return con;
}
public static void closeConnection(){
if(con != null){
try {
con.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
demoSel程式碼:
package com.jredu.excel;
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;
public class demoSel extends HttpServlet {
public demoSel() {
super();
}
public void destroy() {
super.destroy();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
System.out.println("匯入成功");
// TestExcel.start();
}
public void init() throws ServletException {
}
}
Excel實體類程式碼:
package com.jredu.excel;
public class Excel {
private String id;
private String name;
private String className;
private String sex;
public Excel(){};
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getClassName() {
return className;
}
public void setClassName(String className) {
this.className = className;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
TestExcel程式碼:
package com.jredu.excel;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class TestExcel {
//記錄類的輸出資訊-
//獲取Excel文件的路徑-
//.xlsx檔案用XSSFWorkbook .xlx 用的HSSFWorkbook
public static String filepath="C://Users/Administrator/Desktop/excel.xlsx";
public static void start(String filepath){
//建立對excel工作簿的引用
XSSFWorkbook wookbook;
try {
wookbook = new XSSFWorkbook(new FileInputStream(filepath));
//在Execl文件中,第一張工作表的預設索引是0
//XSSFSheet sheet=wookbook.getSheetAt(0);
XSSFSheet sheet=wookbook.getSheet("Sheet1");
//獲取到Execl檔案中的所有行數-
int rows=sheet.getPhysicalNumberOfRows();
//遍歷行
for(int i=1;i<rows;i++){
//讀取左上端單元格
XSSFRow row=sheet.getRow(i);
//行不能空
if(row!=null){
//獲取到所有的列-
int cells=row.getPhysicalNumberOfCells();
String value="";
//遍歷列-
for(int j=0;j<cells;j++){
//獲取列的值
XSSFCell cell=row.getCell(j);
if(cell!=null){
switch(cell.getCellType()){
//這個型別是:公式
//Excel裡面的“公式”,可以用cell.getNumericCellValue(); 來獲得“結果”,也就是“公式”計算之後的結果
case HSSFCell.CELL_TYPE_FORMULA:
break;
//這個型別是:數字
case HSSFCell.CELL_TYPE_NUMERIC:
value+=cell.getNumericCellValue()+",";
break;
case HSSFCell.CELL_TYPE_STRING:
value+=cell.getStringCellValue()+",";
break;
default:
value +=0;
}
}
}
//將資料插入到mysql資料庫中
String[] val=value.split(",");
Excel entity=new Excel();
entity.setId(val[0]);
entity.setName(val[1]);
entity.setClassName(val[2]);
entity.setSex(val[3]);
TestMethod method=new TestMethod();
int a=method.add(entity);
if(a>0){
System.out.println("插入成功");
}else{
System.out.println("插入失敗");
}
}
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
TestMethod程式碼:
package com.jredu.excel;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class TestMethod {
public int add(Excel te) {
Connection con = DBConnection.getConnection();
PreparedStatement pstmt = null;
int count = 0;
String sql = " insert into excel(id,name,className,sex) values(?,?,?,?)";
try {
pstmt = con.prepareStatement(sql);
pstmt.setString(1, te.getId());
pstmt.setString(2, te.getName());
pstmt.setString(3, te.getClassName());
pstmt.setString(4, te.getSex());
count = pstmt.executeUpdate();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
pstmt.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
DBConnection.closeConnection();
}
return count;
}
}
index中程式碼:
<form action="servlet/demoSel" method="post">
<input type="submit" value="提交excle">
</form>
效果:
資料庫中資料 Excel表中資料
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