Java-高校学生选课系统

package com.jwy.action; import java.awt.Color; import java.io.OutputStream; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFRichTextString; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.CellRangeAddress; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; import com.jwy.dao.ICourseDao; import com.jwy.dao.ISpecialtyDao; import com.jwy.dto.Course; import com.jwy.dto.Specialty; import com.jwy.dto.StuUser; import com.lowagie.text.Document; import com.lowagie.text.Element; import com.lowagie.text.Font; import com.lowagie.text.PageSize; import com.lowagie.text.Paragraph; import com.lowagie.text.pdf.BaseFont; import com.lowagie.text.pdf.PdfPCell; import com.lowagie.text.pdf.PdfPTable; import com.lowagie.text.pdf.PdfWriter; public class StatInfoAction extends DispatchAction { private ISpecialtyDao specialtyDao; private ICourseDao courseDao; /** * @param specialtyDao * the specialtyDao to set */ public void setSpecialtyDao(ISpecialtyDao specialtyDao) { this.specialtyDao = specialtyDao; } /** * @param courseDao * the courseDao to set */ public void setCourseDao(ICourseDao courseDao) { this.courseDao = courseDao; } /** * 按照专业编号，课程名称，授课教师姓名进行搜索 * @param mapping * @param form * @param request * @param response * @return */ public ActionForward findBySearch(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { List<Specialty> sList = specialtyDao.findByAll(); Map<String, String> map = new HashMap<String, String>(); if (request.getParameter("specialtyId") != null && !request.getParameter("specialtyId").equals("-1")) { map.put("specialtyId", request.getParameter("specialtyId")); } if (request.getParameter("name") != null && !request.getParameter("name").equals("")) { map.put("name", request.getParameter("name")); } if (request.getParameter("teacherName") != null && !request.getParameter("teacherName").equals("")) { map.put("teacherName", request.getParameter("teacherName")); } List<Object[]> clist = courseDao.findByStat(map); request.setAttribute("sList", sList); request.setAttribute("cList", clist); return mapping.findForward("showStat"); } /** * 跟据课程编号查询选择该门课程的学生 * @param mapping * @param form * @param request * @param response * @return */ public ActionForward stuList(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { Integer specialtyId = Integer.valueOf(request .getParameter("specialtyId")); Specialty specialty = specialtyDao.findById(specialtyId);// 专业信息 Integer courseId = Integer.valueOf(request.getParameter("courseId")); List<Object[]> list = courseDao.findSelectStu(courseId); Course course = courseDao.findByID(courseId); System.out.println(courseId); request.setAttribute("specialty", specialty); request.setAttribute("stuList", list); request.setAttribute("course", course); return mapping.findForward("stuList"); } /** * 将上课学生名单导出PDF文档 * * @param mapping * @param form * @param request * @param response * @return * @throws Exception */ public ActionForward exPDF(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { Integer specialtyId = Integer.valueOf(request.getParameter("specialtyId")); Specialty specialty = specialtyDao.findById(specialtyId);// 专业信息 Integer courseId = Integer.valueOf(request.getParameter("courseId")); List<Object[]> list = courseDao.findSelectStu(courseId); Course course = courseDao.findByID(courseId); response.setContentType("text/html;charset=GBK"); response.setContentType("application/xml"); response.setHeader("Content-Disposition", "attachment;filename=" + new String(course.getName().getBytes(), "iso-8859-1")+".pdf"); OutputStream outs = response.getOutputStream(); // 获取输出流 Document document = new Document(PageSize.A4); PdfWriter.getInstance(document, outs); document.open(); // 设置中文字体 BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED); Font t1 = new Font(bfChinese, 20, Font.BOLD); // 设置一级标题字体 Font t2 = new Font(bfChinese, 15, Font.BOLD); // 设置二级标题字体 Font f1 = new Font(bfChinese, 12, Font.NORMAL); // 设置正文字体 Paragraph pragraph = new Paragraph( specialty.getEnterYear() + "届" + specialty.getLangthYear() + "年制" + specialty.getName() + "专业", t1); pragraph.setAlignment(Paragraph.ALIGN_CENTER); document.add(pragraph); pragraph = new Paragraph(course.getName() + "课程听课人员名单"+" 听课总人数："+list.size()+" 人", t2); pragraph.setAlignment(Paragraph.ALIGN_CENTER); document.add(pragraph); pragraph = new Paragraph("授课教师" + course.getTeacherName(), t2); pragraph.setAlignment(Paragraph.ALIGN_CENTER); document.add(pragraph); // 建立一个表格 PdfPTable table = new PdfPTable(4); table.setSpacingBefore(40f);// 设置表格上面空白宽度 // 生成表头 String[] bt = new String[] { "学生姓名", "学号", "性别", "联系电话" }; for (int i = 0; i < bt.length; i++) { PdfPCell cell = new PdfPCell(new Paragraph(bt[i], f1)); // 建立一个单元格 cell.setBackgroundColor(Color.GRAY); cell.setHorizontalAlignment(Element.ALIGN_CENTER); // 设置内容水平居中显示 cell.setVerticalAlignment(Element.ALIGN_MIDDLE); // 设置垂直居中 table.addCell(cell); } for (int i = 0; i < list.size(); i++) { Object[] o = list.get(i); StuUser stuUser = (StuUser) o[0]; PdfPCell nameCell = new PdfPCell(new Paragraph(stuUser.getStuName(), f1)); // 建立一个单元格 nameCell.setHorizontalAlignment(Element.ALIGN_CENTER); // 设置内容水平居中显示 nameCell.setVerticalAlignment(Element.ALIGN_MIDDLE); // 设置垂直居中 PdfPCell stuNoCell = new PdfPCell(new Paragraph(stuUser.getStuNo(),f1)); // 建立一个单元格 stuNoCell.setHorizontalAlignment(Element.ALIGN_CENTER); // 设置内容水平居中显示 stuNoCell.setVerticalAlignment(Element.ALIGN_MIDDLE); // 设置垂直居中 PdfPCell stuSexCell = new PdfPCell(new Paragraph(stuUser.getStuSex(), f1)); // 建立一个单元格 stuSexCell.setHorizontalAlignment(Element.ALIGN_CENTER); // 设置内容水平居中显示 stuSexCell.setVerticalAlignment(Element.ALIGN_MIDDLE); // 设置垂直居中 PdfPCell telCell = new PdfPCell(new Paragraph(stuUser.getTel(), f1)); // 建立一个单元格 telCell.setHorizontalAlignment(Element.ALIGN_CENTER); // 设置内容水平居中显示 telCell.setVerticalAlignment(Element.ALIGN_MIDDLE); // 设置垂直居中 table.addCell(nameCell); table.addCell(stuNoCell); table.addCell(stuSexCell); table.addCell(telCell); } document.add(table); document.close(); outs.close(); return null; } /** * 将上课学生信息导出为Excel文档 * @param mapping * @param form * @param request * @param response * @return * @throws Exception */ public ActionForward exExcel(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)throws Exception { Integer specialtyId = Integer.valueOf(request.getParameter("specialtyId")); Specialty specialty = specialtyDao.findById(specia