我正在尝试使用jsp-servlet设计一个页面，这将帮助用户upload documents获取案例/客户端。这是它应该如何工作 -
- 中可用的列表中选择客户端
从选项框
根据选择 - 客户的基本信息将是 显示
将激活上传文件的控件
然后，用户可以逐个上传文档
Save Details会将clientID和DocumentNames保存在MySQL中 表
我已经分别找到了步骤＃1到＃5，他们工作正常。当我将它们放在一页上时，问题就开始了。然后我意识到因为我的表单有enctype="multipart/form-data"，所以在我的控制器中无法访问表单（clientID, name, etc）上填充的其他值，以便在MYSQL表中保存Client和Document information 。
如果有人可以指导我/指出我要遵循的榜样，那将会很有帮助。非常感谢你的帮助。
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package com.cts.controller;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
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.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import com.cts.dao.CaseDocumentDAO;
import com.cts.model.CaseDocument;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class CaseDocumentController extends HttpServlet {
private static final long serialVersionUID = 1L;
private static String INSERT_OR_EDIT = "/ctsCaseDocuments.jsp";
//private static String LIST_CASEDETAIL = "/ctsListCaseDetail.jsp";
private CaseDocumentDAO dao;
private final String UPLOAD_DIRECTORY = "d:/uploads";
public CaseDocumentController() {
super();
dao = new CaseDocumentDAO();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String forward = "";
String action = request.getParameter("action");
forward = INSERT_OR_EDIT;
request.setAttribute("casemasters", dao.getAllCaseMaster());
RequestDispatcher view = request.getRequestDispatcher(forward);
view.forward(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
CaseDocument casedocument = new CaseDocument();
if (request.getParameter("GetDetails") != null) {
String str = request.getParameter("cad_FileName1");
System.out.println(str);
String selected_Comments[] = request.getParameterValues("cad_FileName1");
for (String comment : selected_Comments) {
System.out.println(comment);
request.setAttribute("casedetail", dao.getCaseDetailById(Integer.parseInt(comment)));
request.setAttribute("casemasters", dao.getAllCaseMaster());
request.getRequestDispatcher("/ctsCaseDocuments.jsp").forward(request, response);
}
}
if (ServletFileUpload.isMultipartContent(request)) {
try {
String fname = null;
String fsize = null;
String ftype = null;
List<FileItem> multiparts = new ServletFileUpload(
new DiskFileItemFactory()).parseRequest(request);
for (FileItem item : multiparts) {
if (!item.isFormField()) {
fname = new File(item.getName()).getName();
fsize = new Long(item.getSize()).toString();
ftype = item.getContentType();
item.write(new File(UPLOAD_DIRECTORY + File.separator
+ fname));
}
}
// File uploaded successfully
request.setAttribute("message", "File Uploaded Successfully");
request.setAttribute("name", fname);
request.setAttribute("size", fsize);
request.setAttribute("type", ftype);
} catch (Exception ex) {
request.setAttribute("message", "File Upload Failed due to "
+ ex);
}
} else {
request.setAttribute("message",
"Sorry this Servlet only handles file upload request");
}
request.getRequestDispatcher("/ctsCaseDocuments.jsp").forward(request, response);
}
}
JSP代码 -
<%--
Document : ctsCasePayments
Created on : 27 May, 2016, 10:35:35 AM
Author : Admin
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ page import="java.io.*,java.util.*,java.sql.*"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Upload Case Documents</title>
<!-- Bootstrap Core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Custom CSS -->
<link href="css/sb-admin.css" rel="stylesheet">
<!-- Custom Fonts -->
<link href="font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="js/jquery-1.11.1.min.js"></script>
<link rel="stylesheet" href="css/prism.css">
<link rel="stylesheet" href="css/chosen.css">
<style type="text/css" media="all">
/* fix rtl for demo */
.chosen-rtl .chosen-drop { left: -9000px; }
</style>
<script src="/js/jquery.validate.js"></script>
<script>
$.validator.setDefaults({
submitHandler: function () {
alert("submitted!");
}
});
});</script>
<style>
div.dataTables_wrapper {
width: 1100px;
margin: 0 auto;
}
</style>
<style>
#leftContainer {
float:left;
}
#rightContainer {
float:none;
}
</style>
</head>
<body>
<div id="wrapper">
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="index.html">SB Admin</a>
</div>
<!-- Top Menu Items -->
<ul class="nav navbar-right top-nav">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="fa fa-user"></i> <%=session.getAttribute("name")%> <b class="caret"></b></a>
<ul class="dropdown-menu">
<li>
<a href="#"><i class="fa fa-fw fa-user"></i> Profile</a>
</li>
<li>
<a href="#"><i class="fa fa-fw fa-envelope"></i> Inbox</a>
</li>
<li>
<a href="#"><i class="fa fa-fw fa-gear"></i> Settings</a>
</li>
<li class="divider"></li>
<li>
<a href="LogOutController"><i class="fa fa-fw fa-power-off"></i> Log Out</a>
</li>
</ul>
</li>
</ul>
<!-- Sidebar Menu Items - These collapse to the responsive navigation menu on small screens -->
<div class="collapse navbar-collapse navbar-ex1-collapse">
<ul class="nav navbar-nav side-nav">
<li class="active">
<a href="DashBoardController?action=listDairy"><i class="fa fa-fw fa-dashboard"></i> Dashboard</a>
</li>
<li>
<a href="javascript:;" data-toggle="collapse" data-target="#demo"><i class="fa fa-fw fa-arrows-v"></i> Home <i class="fa fa-fw fa-caret-down"></i></a>
<ul id="demo" class="collapse">
<li>
<a href="DashBoardController?action=listDairy">Dashboard</a>
</li>
<li>
<a href="ARCILBoardController?action=listDashboard">ARCIL Dashboard</a>
</li>
</ul>
</li>
<li>
<a href="javascript:;" data-toggle="collapse" data-target="#demo1"><i class="fa fa-fw fa-arrows-v"></i> Operations <i class="fa fa-fw fa-caret-down"></i></a>
<ul id="demo1" class="collapse">
<li>
<a href="AdvocateController?action=listAdvocate">Advocates</a>
</li>
<li>
<a href="UserController?action=listUser">Users</a>
</li>
<li>
<a href="ClientController?action=listClient">Clients</a>
</li>
<li>
<a href="CourtController?action=listCourt">Courts</a>
</li>
<li>
<a href="DashBoardController?action=listDairy">Registrar</a>
</li>
<li>
<a href="#">Case Category</a>
</li>
<li>
<a href="CaseStageController?action=listCaseStage">Case Stage</a>
</li>
<li>
<a href="DocumentController?action=listDocument">Documents</a>
</li>
</ul>
</li>
<li>
<a href="javascript:;" data-toggle="collapse" data-target="#demo2"><i class="fa fa-fw fa-arrows-v"></i> Case <i class="fa fa-fw fa-caret-down"></i></a>
<ul id="demo2" class="collapse">
<li>
<a href="CaseDetailController?action=listCaseDetail">Case Diary</a>
</li>
<li>
<a href="CaseDocumentController?action=listDocument">Case Documents</a>
</li>
<li>
<a href="#">Notice Information</a>
</li>
<li>
<a href="#">Allocate Cases</a>
</li>
<li>
<a href="#">Payments</a>
</li>
</ul>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</nav>
<div id="page-wrapper">
<div class="container-fluid">
<!-- Page Heading -->
<div class="row">
<div class="col-lg-12">
<h1 class="page-header">
Maintain Case Expenses
</h1>
<ol class="breadcrumb">
<li>
<i class="fa fa-dashboard"></i> <a href="index.jsp">Dashboard</a>
</li>
<li class="active">
<i class="fa fa-edit"></i> Maintain Case Expenses
</li>
</ol>
</div>
</div>
<!-- /.row -->
<div class="row">
<div class="col-lg-6">
<%-- <form role="form" method="POST" class="register" action='CaseExpensesController' name="frmAddCaseDetail" onsubmit="return ValidateEndDate(this)">--%>
<form role="form" method="POST" class="register" action='CaseDocumentController' name="frmUploadDocuments" >
<div class="form-group">
<p>
<table>
<tr>
<td>
<select data-placeholder="Select Case..." name ="cad_FileName1" class="chosen-select" style="width:450px;" >
<c:forEach items="${casemasters}" var="casemaster">
<option value="${casemaster.cad_ID}" ${casedetail.cad_ID == casemaster.cad_ID ? 'selected' : ''}>${casemaster.cad_CaseNo} || ${casemaster.cad_FileName}</option>
</c:forEach>
</select>
</td>
<td> <lable> </lable> </td>
<td><button type="submit" name="GetDetails" value="GetDetails" class="btn btn-primary">Get Details</button> </td>
<td> <lable> </lable> </td>
<td><button type="submit" name="AddCase" value="AddCase" class="btn btn-primary">New Case</button> </td>
</tr>
</table>
</p>
<div class="form-group">
<p>
<table>
<tr>
<td><input type="text" readonly="readonly" style="width:200px;" class="form-control" placeholder="Case ID" name="cad_id" value="<c:out value="${casedetail.cad_ID}" />" /> </td>
<td> <lable> </lable> </td>
<td><input type="text" readonly="readonly" style="width:220px;" class="form-control" placeholder="Registration No" name="cad_RegNo" value="<c:out value="${casedetail.cad_RegNo}" />" /> </td>
<td> <lable> </lable> </td>
<td><input type="text" readonly="readonly" style="width:250px;" class="form-control" placeholder="Case Number" name="cad_CaseNo" value="<c:out value="${casedetail.cad_CaseNo}" />" /> </td>
<td> <lable> </lable> </td>
<td><input type="text" readonly="readonly" style="width:250px;" class="form-control" placeholder="File Number" name="cad_FileNo" value="<c:out value="${casedetail.cad_FileNo}" />" /> </td>
</tr>
</table>
</p>
<p>
<table>
<tr>
<td><input type="text" readonly="readonly" style="width:475px;" class="form-control" placeholder="File Name" name="cad_FileName" value="<c:out value="${casedetail.cad_FileName}" />" /> </td>
<td> <lable> </lable> </td>
<td><input type="text" readonly="readonly" style="width:475px;" class="form-control" placeholder="Client Name" name="cad_ClientName" value="<c:out value="${casedetail.cad_ClientName}" />" /> </td>
</tr>
</table>
</p>
<input type="hidden" readonly="readonly" style="width:200px;" class="form-control" placeholder="CaseExpenseID" name="cce_ID" value="<c:out value="${caseexpense.cce_ID}" />" />
<input type="hidden" readonly="readonly" style="width:200px;" class="form-control" placeholder="Case ID" name="pcad_ID" value="<c:out value="${caseexpense.cad_ID}" />" />
<input type="hidden" class="form-control" name="cce_DeleteFlag" value="<c:out value="0"/>" />
<input type="hidden" class="form-control" name="cce_ActiveFlag" value="<c:out value="true" />" />
<input type="hidden" class="form-control" name="cce_CreateDate" value="<fmt:formatDate pattern="dd/MM/yyyy" value="<%= new java.util.Date()%>" />" />
<input type="hidden" class="form-control" name="cce_CreateUser" value="<c:out value="1" />" />
<input type="hidden" class="form-control" name="cce_ModifyDate" value="<fmt:formatDate pattern="dd/MM/yyyy" value="<%= new java.util.Date()%>" />" />
<input type="hidden" class="form-control" name="cce_ModifyUser" value="<c:out value="1" />" />
<p>
<%--<button type="submit" name="SaveDetails" value="SaveDetails" class="btn btn-primary" onClick="return ValidateEndDate();">Submit</button> --%>
<button type="submit" name="SaveDetails" value="SaveDetails" class="btn btn-primary" >Submit</button>
<button type="reset" class="btn btn-default">Reset Button</button>
</p>
</div>
</div>
<script type="text/javascript">
function ValidateEndDate() {
var StartDate = document.getElementById('ccd_PreviousDate').value;
var EndDate = document.getElementById('ccd_CurrentDate').value;
var tmpStartDate = StartDate.split("/");
var tmpEndDate = EndDate.split("/");
var eDate = new Date(tmpEndDate[1] + '/' + tmpEndDate[0] + '/' + tmpEndDate[2]);
var sDate = new Date(tmpStartDate[1] + '/' + tmpStartDate[0] + '/' + tmpStartDate[2]);
if (StartDate != '' && StartDate != '' && sDate.getTime() > eDate.getTime()) {
document.getElementById('NextDateError').innerText = "Please ensure that the Next Date is greater than Previous Date"
return false;
}
else
return true;
}
</script>
<script type="text/javascript">
Toggle();
function Toggle() {
if (document.frmAddCaseDetail.cboxToggle.checked) {
return ValidateEndDate();
}
}
</script>
<script>
function ctsOpenCaseStaePopUp() {
window.open("ctsCaseStage.jsp", null, "height=438, width=600, status=yes, toolbar=no, menubar=no, location=no");
}
</script>
<script>
function ctsOpenCourtPopUp() {
window.open("ctsCourtRegistration.jsp", null, "height=480, width=600, status=yes, toolbar=no, menubar=no, location=no");
}
</script>
</form>
<form method="post" action="CaseDocumentController" enctype="multipart/form-data">
Choose a file : <input type="file" name="file"> <input
type="submit" value="upload">
<div id="result">
<h3>${requestScope["message"]}</h3>
<br>
</div>
File name : ${requestScope["name"]}
<br> File size : ${requestScope["size"]}
<br> File type : ${requestScope["type"]}
</form>
</div>
</div>
<!-- /.row -->
</div>
<!-- /.container-fluid -->
</div>
<!-- /#page-wrapper -->
<!-- /#wrapper -->
<!-- jQuery -->
<script src="js/jquery.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="js/bootstrap.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js" type="text/javascript"></script>
<script src="js/chosen.jquery.js" type="text/javascript"></script>
<script src="js/prism.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
var config = {
'.chosen-select': {},
'.chosen-select-deselect': {allow_single_deselect: true},
'.chosen-select-no-single': {disable_search_threshold: 10},
'.chosen-select-no-results': {no_results_text: 'Oops, nothing found!'},
'.chosen-select-width': {width: "95%"}
}
for (var selector in config) {
$(selector).chosen(config[selector]);
}
</script>
</body>