java開發就業信息管理系統

本文實例為大家分享了java就業信息管理平台開發案例，供大家參考，具體內容如下

可查詢公司信息，學生信息，班級信息，針對學生就業與否信息的統計，老師和管理員登錄後的權限不同等就業信息管理平台想要實現的是各個班級的學生就業情況，數據庫裡建有6張表，分別是班級，公司，職位，學生，登錄用戶。

其中就業信息在界面上顯示的內容是學生信息和職位的組合，在jsp頁面中是拼接來實現，如果這個學生找到工作則需要填寫就業信息，否則空著。如就業截圖。

在企業信息中，需要實現的功能是首先有計劃招聘時間，實際招聘時間，每個都有老師，如果這個公司招聘結束，則要通過後面的編輯把實際招聘時間和實際招聘老師填寫上去，招聘狀態顯示為已結束；否則不填，招聘狀態為招聘中。還有兩個功能就是兩種查詢：一是根據招聘查詢，採用option下拉框中的選擇；而是根據公司名稱查詢，是在框中輸入公司關鍵字查詢，這裡用到了like模糊查詢。而在就業信息中只用到了option下拉選擇中的根據班級名的查詢。

在班級信息只用到了輸入關鍵字的精確查詢。他們查詢到的統計信息都會根據每頁能夠顯示的條數進行分頁，尤其是下拉框選擇查詢，它們可能不只一條信息。

基礎信息裡有班級信息和學生信息，學生信息顯示的是學生的基本信息。

個人信息裡顯示的修改密碼和用戶信息，用戶信息的一個特點是管理員和普通教師的權限問題。普通教師登錄只能查看信息，但不能作任何修改。

所有基本信息都能實現增刪改查，其中作分頁查詢時遇到的難點還是有的――下拉選擇，此外就是分頁時用到的page.js文件，實現的是顯示第幾頁/共幾頁，首頁/上一頁/下一頁/尾頁。

還有就是權限問題，我是在數據庫中註冊登錄用戶時都有一個permission權限，填yes/no，然後在後面的程序中判斷出來。本項目唯一缺憾就是沒有實現導入導出功能，就是在就業信息欄右上角設置一個導入和導出按鈕，就是一個模板，導入實現的是批量輸入excel中的學生信息，導出實現的是把學生的就業情況導出excel表格形式。

1. addCompany_action.java

 package com.ben.emp.action; import java.io.IOException;import java.text.ParseException;import java.text.SimpleDateFormat; import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession; import com.ben.emp.model.company;import com.ben.emp.model.user;import com.ben.emp.service.companyService;import com.ben.emp.service.impl.companyServiceImpl; @WebServlet("/addCompany.action")public class addCompany_action extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.getRequestDispatcher("/addCompany.jsp").forward(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String name = req.getParameter("name"); String introduce = req.getParameter("introduce"); String requirement = req.getParameter("requirement"); String address = req.getParameter("address"); String plantime = req.getParameter("plantime"); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); companyService cs = new companyServiceImpl(); company com = new company(); HttpSession session = req.getSession(true); user user = (user) session.getAttribute("user"); com.setName(name); com.setIntroduce(introduce); com.setRequirement(requirement); com.setAddress(address); try { com.setPlantime(sdf.parse(plantime)); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } com.setState("招聘中"); com.setTeach1(user.getName()); com.setTeach2(""); com.setId(0); cs.addCompany(com); resp.sendRedirect(req.getContextPath()+"/company.action"); }}

2. editStudent_action.java

 package com.ben.emp.action; import java.io.IOException;import java.text.ParseException;import java.text.SimpleDateFormat; import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse; import com.ben.emp.model.classes;import com.ben.emp.model.student;import com.ben.emp.service.classesService;import com.ben.emp.service.studentService;import com.ben.emp.service.impl.classesServiceImpl;import com.ben.emp.service.impl.studentServiceImpl; @WebServlet("/editStudent.action")public class editStudent_action extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String strid = req.getParameter("id"); int studentId = Integer.valueOf(strid); studentService ss = new studentServiceImpl(); student stu = ss.getStudentById(studentId); req.setAttribute("stu", stu); req.getRequestDispatcher("/editStudent.jsp").forward(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String strid = req.getParameter("id"); int studentId = Integer.valueOf(strid); String name = req.getParameter("studentname"); String sex = req.getParameter("sex"); String school = req.getParameter("school"); String major = req.getParameter("major"); String bytime = req.getParameter("bytime"); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); String tel = req.getParameter("telephone"); String qq = req.getParameter("qq"); studentService ss = new studentServiceImpl(); student stu = new student();// HttpSession session = req.getSession(true); // user user = (user)session.getAttribute("user"); String classname = req.getParameter("selectclass"); classesService cs = new classesServiceImpl(); classes cla = cs.getClassesByName(classname); stu.setName(name); stu.setSex(sex); stu.setSchool(school); stu.setMajor(major); try { stu.setBytime(sdf.parse(bytime)); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } stu.setTel(tel); stu.setQq(qq); stu.setClassid(cla.getId()); stu.setId(studentId); ss.editStudent(stu); resp.sendRedirect(req.getContextPath()+"/student.action"); } }

3. employ_action.java

 package com.ben.emp.action; import java.io.IOException;import java.util.ArrayList;import java.util.List; import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse; import com.ben.emp.model.classes;import com.ben.emp.model.info;import com.ben.emp.model.student;import com.ben.emp.service.classesService;import com.ben.emp.service.infoService;import com.ben.emp.service.studentService;import com.ben.emp.service.impl.classesServiceImpl;import com.ben.emp.service.impl.infoServiceImpl;import com.ben.emp.service.impl.studentServiceImpl; @WebServlet("/employ.action")public class employ_action extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { classesService cs = new classesServiceImpl(); List<classes> cla = cs.getClasses(); List<String> lst = new ArrayList<String>(); for(classes ele : cla){ String name = ele.getName(); lst.add(name); } studentService ss = new studentServiceImpl(); List<student> lstu = ss.getStudentPage(1, 10); infoService is = new infoServiceImpl(); //連接到就業信息表裡List<info> lin = new ArrayList<info>(); for(student ele : lstu){ info info = new info(); info = is.getInfoByStudentId(ele.getId()); lin.add(info); } List<student> count = ss.getStudentPage(1, Integer.MAX_VALUE); int number = count.size(); int page = number % 10 == 0 ? number / 10 : (number/10) + 1; req.setAttribute("lst", lst); req.setAttribute("value", "全部"); req.setAttribute("number", number); req.setAttribute("page", page); req.setAttribute("index", 1); req.setAttribute("list", lstu); req.setAttribute("lin", lin); req.getRequestDispatcher("/employ.jsp").forward(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String value = req.getParameter("select"); classesService cs = new classesServiceImpl(); List<classes> cla = cs.getClasses(); List<String> lst = new ArrayList<String>(); lst.add("全部"); for(classes ele : cla){ String name = ele.getName(); lst.add(name); } lst.remove(value); studentService ss = new studentServiceImpl(); infoService is = new infoServiceImpl(); //連接到就業信息表裡List<info> lin = new ArrayList<info>(); if(value.equals("全部")){ List<student> count = ss.getStudentPage(1, Integer.MAX_VALUE); int number = count.size(); int page = number % 10 == 0 ? number / 10 : (number/10) + 1; String strpageIndex = req.getParameter("pageIndex"); int index = Integer.valueOf(strpageIndex); List<student> lstu = ss.getStudentPage(index, 10); for(student ele : lstu){ info info = new info(); info = is.getInfoByStudentId(ele.getId()); lin.add(info); } req.setAttribute("number", number); req.setAttribute("page", page); req.setAttribute("index", index); req.setAttribute("list", lstu); req.setAttribute("lin", lin); }else{ List<student> count = ss.getStudentByClassName(value, 1, Integer.MAX_VALUE); int number = count.size(); int page = number % 10 == 0 ? number / 10 : (number/10) + 1; String strpageIndex = req.getParameter("pageIndex"); int index = Integer.valueOf(strpageIndex); List<student> lstu = ss.getStudentByClassName(value, index, 10); for(student ele : lstu){ info info = new info(); info = is.getInfoByStudentId(ele.getId()); lin.add(info); } req.setAttribute("number", number); req.setAttribute("page", page); req.setAttribute("index", index); req.setAttribute("list", lstu); req.setAttribute("lin", lin); } req.setAttribute("value", value); req.setAttribute("lst", lst); req.getRequestDispatcher("/employ.jsp").forward(req, resp); }}

4. employ.jsp

 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ include file="base.jsp" %><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %><!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>無標題文檔</title><link href="css/style.css" rel="stylesheet" type="text/css" /><script type="text/javascript" src="js/jquery.js"></script><!-- 自己加的一行jquery.js --><script type="text/javascript" src="js/jquery-1.11.0.min.js"></script><script type="text/javascript" src="js/page.js"></script><script type="text/javascript">$(function(){ $("select").change(function(){ $("#pageIndex").val(1); $("form").submit(); }); $(".pg").click(subfun);});function subfun(){ var id = $(this).attr("id"); var value = $("#pageIndex").val(); var count = $("#pageCount").val(); if(id == "first"){ $("#pageIndex").val(1); $("form").submit(); }else if(id == "previous"){ if(Number(value) == 1){ return false; }else{ $("#pageIndex").val(Number(value)-1); $("form").submit(); } }else if(id == "next"){ if(value == count){ return false; }else{ $("#pageIndex").val(Number(value)+1); $("form").submit(); } }else{ $("#pageIndex").val(count); $("form").submit(); } return false;//阻止a標籤的網頁跳轉的功能}</script></head><body> <div> <span>位置：</span> <ul> <li><a href="#">首頁</a></li> <li><a href="#">就業信息</a></li> </ul> </div> <form action="employ.action" method="post"> <div> <div> <ul> <li><span>班級名稱： <select style="border:1px solid #056dae" id="select" name="select"> <option>${requestScope.value }</option> <c:forEach items="${requestScope.lst }" var="ele"> <option>${ele }</option> </c:forEach> </select> </span></li> </ul> <ul> <li><span><img src="images/t05.png" /></span>下載</li> </ul> </div> <table> <thead> <tr> <th>姓名</th> <th>性別</th> <th>畢業院校</th> <th>專業</th> <th>畢業時間</th> <th>電話</th> <th>就業單位</th> <th>職位</th> <th>工資</th> <th>就業時間</th> </tr> </thead> <tbody> <c:forEach items="${requestScope.list }" var="stu" varStatus="s"> <tr> <td>${stu.name }</td> <td>${stu.sex }</td> <td>${stu.school }</td> <td>${stu.major }</td> <td>${stu.bytime }</td> <td>${stu.tel }</td> <c:if test="${requestScope.lin[s.index] == null }" > <td colspan="4" style="text-align:center;"><a href="addInfo.action?id=${stu.id }">填寫就業信息</a></td> </c:if> <c:if test="${requestScope.lin[s.index] != null }"> <td>${requestScope.lin[s.index].companyname }</td> <td>${requestScope.lin[s.index].post }</td> <td>${requestScope.lin[s.index].salary }</td> <td>${requestScope.lin[s.index].worktime }</td> </c:if> </tr> </c:forEach> </tbody> </table> <input type="hidden" name="pageIndex" id="pageIndex" value="${requestScope.index }"> <input type="hidden" name="pageCount" id="pageCount" value="${requestScope.page }"> <input type="hidden" name="pageNumber" id="pageNumber" value="${requestScope.number }"> <div id="page"> <div>共<i>${requestScope.number }</i>條記錄，共<i> ${requestScope.page }</i>頁，當前顯示第<i>${requestScope.index }</i>頁</div> <ul> <li><a href="javascript:;" id="first"><span></span></a></li> <li><a href="javascript:;" id="previous">上一頁</a></li> <li><a href="javascript:;" id="next">下一頁</a></li> <li><a href="javascript:;" id="last"><span></span></a></li> </ul> </div> </div> </form></body></html>

5. page.js

 $(function(){ $(".paginItem").click(subfun);});function subfun(){ //必須要知道我獲取的是哪一個class,我點的是哪一個a標籤var id = $(this).attr("id"); var value = $("#pageIndex").val(); //獲取當前頁var count = $("#pageCount").val(); //獲取尾頁if(id == "first"){ $("#pageIndex").val(1); //將pageIndex當前頁$("form").submit(); //通過a標籤進行表單提交}else if(id == "previous"){ //判斷本頁是否為首頁如果為首頁如果部位首頁的話判斷當前頁是否為1 ==1首頁!=1 不是首頁if(Number(value) == 1){ return false; }else{ $("#pageIndex").val(Number(value)-1); $("form").submit(); } }else if(id == "next"){ //判斷當前頁是否為尾頁尾頁如何判斷計算尾頁計算數據庫的總條數/ 每頁顯示多少條結果是否+1 if(value == count){ return false; }else{ $("#pageIndex").val(Number(value)+1); $("form").submit(); } }else{ $("#pageIndex").val(count); $("form").submit(); } return false; //阻止a標籤的網頁跳轉的功能}

效果圖：

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