1.修改list.html的页面,在编辑按钮处 添加 th:href=" " 的
<a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.id}">编辑</a>
2.启动服务器,重新进入员工界面,鼠标放在编辑按钮处,可以看到每个编辑按钮都会带上id了
3.在src/main/java/com/azuma/springboot/controller/EmployeeController.java中添加toEditPage方法
//来到修改页面,查出当前员工,在页面回显 @GetMapping("/emp/{id}") public String toEditPage(@PathVariable("id") Integer id,Model model){ Employee employee = employeeDao.get(id); model.addAttribute("emp",employee); //页面要显示所有的部门列表 Collection<Department> departments = departmentDao.getDepartments(); model.addAttribute("depts",departments); //回到修改页面(add是一个修改添加二合一的页面); return "emp/add"; } //员工修改;需要提交员工id; @PutMapping("/emp") public String updateEmployee(Employee employee){ System.out.println("修改的员工数据:"+employee); employeeDao.save(employee); return "redirect:/emps"; }
4.修改add.html中的form表单的代码,添加表单信息回显
<!--需要区分是员工修改还是添加;--> <form th:action="@{/emp}" method="post"> <!--发送put请求修改员工数据--> <!-- 1、SpringMVC中配置HiddenHttpMethodFilter;(SpringBoot自动配置好的) 2、页面创建一个post表单 3、创建一个input项,name="_method";值就是我们指定的请求方式 --> <input type="hidden" name="_method" value="put" th:if="${emp!=null}"/> <input type="hidden" name="id" th:if="${emp!=null}" th:value="${emp.id}"> <div class="form-group"> <label>LastName</label> <input name="lastName" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${emp.lastName}"> </div> <div class="form-group"> <label>Email</label> <input name="email" type="email" class="form-control" placeholder="[email protected]" th:value="${emp!=null}?${emp.email}"> </div> <div class="form-group"> <label>Gender</label><br/> <div class="form-check form-check-inline"> <input class="form-check-input" type="radio" name="gender" value="1" th:checked="${emp!=null}?${emp.gender==1}"> <label class="form-check-label">男</label> </div> <div class="form-check form-check-inline"> <input class="form-check-input" type="radio" name="gender" value="0" th:checked="${emp!=null}?${emp.gender==0}"> <label class="form-check-label">女</label> </div> </div> <div class="form-group"> <label>department</label> <!--提交的是部门的id--> <select class="form-control" name="department.id"> <option th:selected="${emp!=null}?${dept.id == emp.department.id}" th:value="${dept.id}" th:each="dept:${depts}" th:text="${dept.departmentName}">1</option> </select> </div> <div class="form-group"> <label>Birth</label> <input name="birth" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}"> </div> <button type="submit" class="btn btn-primary" th:text="${emp!=null}?'修改':'添加'">添加</button> </form>
5.添加员工删除功能
(1)在list.html中添加员工删除按钮(使用js提交方式)
form中添加删除按钮
<tr th:each="emp:${emps}"> <td th:text="${emp.id}"></td> <td>[[${emp.lastName}]]</td> <td th:text="${emp.email}"></td> <td th:text="${emp.gender}==0?'女':'男'"></td> <td th:text="${emp.department.departmentName}"></td> <td th:text="${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}"></td> <td> <a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.id}">编辑</a> <button th:attr="del_uri=@{/emp/}+${emp.id}" class="btn btn-sm btn-danger deleteBtn">删除</button> </td> </tr>
在main外添加form表单
<tbody> <tr th:each="emp:${emps}"> <td th:text="${emp.id}"></td> <td>[[${emp.lastName}]]</td> <td th:text="${emp.email}"></td> <td th:text="${emp.gender}==0?'女':'男'"></td> <td th:text="${emp.department.departmentName}"></td> <td th:text="${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}"></td> <td> <a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.id}">编辑</a> <button th:attr="del_uri=@{/emp/}+${emp.id}" class="btn btn-sm btn-danger deleteBtn">删除</button> </td> </tr> </tbody> </table> </div> </main> <!-- 此处添加form表单,并设置id --> <form id="deleteEmpForm" method="post"> <input type="hidden" name="_method" value="delete"/> </form> </div> </div>
js代码:
<script> $(".deleteBtn").click(function(){ //删除当前员工的 $("#deleteEmpForm").attr("action",$(this).attr("del_uri")).submit(); return false; }); </script>
(2)在src/main/java/com/azuma/springboot/controller/EmployeeController.java中添加员工删除方法
@DeleteMapping("/emp/{id}") public String deleteEmployee(@PathVariable("id") Integer id){ employeeDao.delete(id); return "redirect:/emps"; }
(3)点击删除出现405错误,提示不支持POST请求
#springboot默认关闭了hiddenmethod 过滤器,
#在application.properties 中将过滤器设置启用即可
spring.mvc.hiddenmethod.filter.enabled=true