1.批量删除
有个bug，只能在前端删除，数据库中删不掉
Admincontroller中加

 @RequestMapping("/delCourse")
    public String batchDeletes(HttpServletRequest request, HttpServletResponse response) {
    
    
        String items = request.getParameter("delitems");
        System.out.println(items);
        String[] strs = items.split(",");

        for (int i = 0; i < strs.length; i++) {
    
    
            try {
    
    
                int id = Integer.parseInt(strs[i]);
                courseService.removeById(id);
//                persistService.delStudentById(a);//这行代码debug了应该就能真正删掉数据库数据了
            } catch (Exception e) {
    
    
            }
        }
        return "redirect:/admin/showCourse";
    }

showcourse.jsp中加

<table class="table table-bordered">
					        <thead>
					            <tr>
					                
									<th>选择</th>    //
									<th>课程号</th>
									<th>课程名称</th>
									<th>授课老师编号</th>
									<th>上课时间</th>
									<th>上课地点</th>
									<th>周数</th>
									<th>课程类型</th>
									<th>学分</th>
									<th>操作</th>
					            </tr>
					        </thead>
					        <tbody>
							<c:forEach  items="${courseList}" var="item">
								<tr>
						<td><input type="checkbox" id="subcheck" name="subcheck" value="${item.courseid}" /></td>  //

									<td>${
    
    item.courseid}</td>
									<td>${
    
    item.coursename}</td>
									<td>${
    
    item.teacherid}</td>
									<td>${
    
    item.coursetime}</td>
									<td>${
    
    item.classroom}</td>
									<td>${
    
    item.courseweek}</td>
									<td>${
    
    item.coursetype}</td>
									<td>${
    
    item.score}</td>
									<td>
										<button class="btn btn-default btn-xs btn-info" onClick="location.href='/admin/editCourse?id=${item.courseid}'">修改</button>
										<button class="btn btn-default btn-xs btn-danger btn-primary" onClick="location.href='/admin/removeCourse?id=${item.courseid}'">删除</button>
										<!--弹出框-->
									</td>
								</tr>
							</c:forEach>
					        </tbody>
				    </table>

					<input type="button" class="btn btn-default btn-xs btn-danger btn-primary" onclick="batchDeletes()" value="删除"></input> //

<script type="text/javascript">  //
						function batchDeletes(){
    
    
							//判断至少写了一项
							var checkedNum = $("input[name='subcheck']:checked").length;
							if(checkedNum==0){
    
    
								alert("请至少选择一项!");
								return false;
							}
							if(confirm("确定删除所选项目?")){
    
    
								var checkedList = new Array();
								$("input[name='subcheck']:checked").each(function(){
    
    
									checkedList.push($(this).val());
								});

								$.ajax({
    
    
									type:"POST",
									url:"delCourse",
									data:{
    
    "delitems":checkedList.toString()},
									datatype:"html",
									success:function(data){
    
    
										$("[name='checkbox']:checkbox").attr("checked",false);
										location.reload();//页面刷新
									},
									error:function(data){
    
    
										alert('删除失败!');
									}
								});
							}
						}
					</script>

2.搜索功能
showcourse.jsp

<form class="bs-example bs-example-form col-md-5" role="form" style="margin: 20px 0 10px 0;" action="/admin/selectCourse2" id="form2" method="post">
								<div class="input-group">
									<input type="number" class="form-control" placeholder="授课教师编号" name="findByTeacherID">
									<span class="input-group-addon btn" onclick="document.getElementById('form2').submit" id="sub2">搜索</span>
								</div>
							</form>

//在最后面加
$("#sub2").click(function () {
    
    
			$("#form2").submit();
		});

admincontroller中

 @RequestMapping(value = "selectCourse2", method = {
    
    RequestMethod.POST})
    private String selectCourse2(Integer findByTeacherID, Model model) throws Exception {
    
    

        List<CourseCustom> list = courseService.findByTeacherID(findByTeacherID);

        model.addAttribute("courseList", list);
        return "admin/showCourse";
    }