java开发就业信息管理系统
发布时间：2020-05-23 19:28:54 所属栏目：Java 来源：互联网
导读：本文实例为大家分享了java就业信息管理平台开发案例，供大家参考，具体内容如下
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本文实例为大家分享了java就业信息管理平台开发案例，供大家参考，具体内容如下 可查询公司信息，学生信息，班级信息，针对学生就业与否信息的统计，老师和管理员登录后的权限不同等 其中就业信息在界面上显示的内容是学生信息和职位的组合，在jsp页面中是拼接来实现，如果这个学生找到工作则需要填写就业信息，否则空着。如就业截图。 在企业信息中，需要实现的功能是首先有计划招聘时间，实际招聘时间，每个都有老师，如果这个公司招聘结束，则要通过后面的编辑把实际招聘时间和实际招聘老师填写上去，招聘状态显示为已结束；否则不填，招聘状态为招聘中。还有两个功能就是两种查询：一是根据招聘查询，采用option下拉框中的选择；而是根据公司名称查询，是在框中输入公司关键字查询，这里用到了like模糊查询。而在就业信息中只用到了option下拉选择中的根据班级名的查询。 在班级信息只用到了输入关键字的精确查询。他们查询到的统计信息都会根据每页能够显示的条数进行分页，尤其是下拉框选择查询，它们可能不只一条信息。 基础信息里有班级信息和学生信息，学生信息显示的是学生的基本信息。 个人信息里显示的修改密码和用户信息，用户信息的一个特点是管理员和普通教师的权限问题。普通教师登录只能查看信息，但不能作任何修改。 所有基本信息都能实现增删改查，其中作分页查询时遇到的难点还是有的――下拉选择，此外就是分页时用到的page.js文件，实现的是显示第几页/共几页，首页/上一页/下一页/尾页。 还有就是权限问题，我是在数据库中注册登录用户时都有一个permission权限，填yes/no，然后在后面的程序中判断出来。本项目唯一缺憾就是没有实现导入导出功能，就是在就业信息栏右上角设置一个导入和导出按钮，就是一个模板，导入实现的是批量输入excel中的学生信息，导出实现的是把学生的就业情况导出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,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,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,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,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(); //连接到就业信息表里
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,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(); //连接到就业信息表里
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",index);
req.setAttribute("list",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,lin);
}
req.setAttribute("value",value);
req.setAttribute("lst",lst);
req.getRequestDispatcher("/employ.jsp").forward(req,resp);
}
}
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