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package cn.oa.servlet; import cn.oa.entity.Employee; import cn.oa.service.EmployeeService; import cn.oa.service.impl.EmployeeServiceImpl; import cn.oa.util.DateUtil; import cn.oa.util.Page; import javax.servlet.ServletException; import javax.servlet.annotation.MultipartConfig; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.Part; import java.io.*; import java.util.Arrays; import java.util.Collection; import java.util.List; import java.util.UUID; @WebServlet(name="EmployeeServlet", urlPatterns = "/control/employee") @MultipartConfig(maxFileSize = 1024*1024*2) public class EmployeeServlet extends HttpServlet { private static final long serialVersionUID = -3939788861110647343L; private static final int EMPLOYEE_NUMBERS_PER_PAGE = 5; // 允许的图片类型 private String ALLOW_IMG_TYPE = "image/png;image/jpg;image/jpeg;image/gif"; private static final int DEFAULT_BUFFER_SIZE = 10240; // 10KB. @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String opr = request.getParameter("opr"); PrintWriter out = response.getWriter(); String contextPath = request.getContextPath(); EmployeeService employeeService = new EmployeeServiceImpl(); if(opr.equals("list")){ try{ String name = (request.getParameter("empName") != null ) ? request.getParameter("empName").trim() : ""; String pageIndex = request.getParameter("pageIndex");//获得当前页数 if (pageIndex == null || (pageIndex = pageIndex.trim()).length() == 0) { pageIndex = "1"; } int currPageNo = Integer.parseInt(pageIndex); // 对首页与末页进行控制 if (currPageNo < 1) { currPageNo = 1; } Page pageObj = new Page(); pageObj.setCurrPageNo(currPageNo); // 设置当前页码 pageObj.setPageSize(EMPLOYEE_NUMBERS_PER_PAGE); // 设置每页显示条数 employeeService.getEmployeesByPage(name,pageObj); request.setAttribute("list",pageObj.getEmployeeList()); request.setAttribute("pageObj",pageObj); request.setAttribute("searchName",name); request.getRequestDispatcher("../jsp/user/empl_list.jsp").forward(request,response); }catch(Exception e){ e.printStackTrace(); } }else if(opr.equals("toModify")){ int id = Integer.parseInt(request.getParameter("id")); try { Employee empl = employeeService.getEmployeeById(id); request.setAttribute("employee",empl); request.getRequestDispatcher("../jsp/user/empl_modify.jsp").forward(request,response); }catch(Exception e){ e.printStackTrace(); } }else if(opr.equals("modify") || opr.equals("addNew")){ Employee emp = new Employee(); if(opr.equals("modify")){ int id = Integer.parseInt(request.getParameter("id")); emp.setId(id); } try{ Collection<Part> parts = request.getParts(); String encoding = request.getCharacterEncoding(); for(Part part: parts){ if(part.getName().equals("name")){ String name = getValue(part, encoding); if(checkValue(out,name,"用户姓名")){ emp.setName(name); }else{ return; } }else if(part.getName().equals("employeeNo")){ String employeeNo = getValue(part,encoding); if(checkValue(out,employeeNo,"员工工号")){ emp.setEmployeeNo(employeeNo); }else{ return; } }else if(part.getName().equals("email")){ emp.setEmail(getValue(part,encoding)); }else if(part.getName().equals("entryTime")){ String entryTime = getValue(part,encoding); if(checkValue(out,entryTime,"入职时间")){ emp.setEntryTime(DateUtil.string2Date(entryTime)); }else{ return; } }else if(part.getName().equals("department")){ emp.setDeptId(Integer.parseInt(getValue(part,encoding))); }else if(part.getName().equals("position")){ emp.setPositionId(Integer.parseInt(getValue(part,encoding))); }else if(part.getName().equals("fileField")){ if(part.getSize()!=0){ String uploadFilePath = request.getSession().getServletContext() .getRealPath("upload/"); //如果上传路径不存在，则新建目录 File fileSaveDir = new File(uploadFilePath); if (!fileSaveDir.exists()) { fileSaveDir.mkdir(); } //验证文件格式 String contentType = part.getContentType(); List<String> allowTypes = Arrays.asList(ALLOW_IMG_TYPE.split(";")); if (!(contentType == null || "".equals(contentType.trim())) && allowTypes.contains(contentType)) { //提取文件名 String fileName = extractFileName(part); String suffix = getSuffix(fileName); //名字避免重复使用UUID+后缀 String newFileName = UUID.randomUUID().toString().replace("-", "") + suffix; //将文件写入指定目录 String location = uploadFilePath + File.separator + newFileName; part.write(location); emp.setPhoto("upload/"+newFileName); }else{ //文件格式不符合要求 out.println("<script type='text/javascript'>"); out.println("alert('上传失败，允许的文件格式为gif格式、jpg格式和png格式！');"); out.println("window.history.back(-1);"); out.println("</script>"); out.flush(); out.close(); return; } } } } //更新数据库 int result =0; if(opr.equals("modify")){ result = employeeService.updateEmployee(emp); if(result > 0){ request.setAttribute("message","操作成功！"); request.getRequestDispatcher("../message.jsp").forward(request,response); }else{ out.println("<script type='text/javascript'>"); out.println("alert('操作失败！请联系管理员！');"); out.println("window.history.back(-1);");