Java SpringMVC-如何使用DAO+从JSP表中的数据库编辑数据；服务

我得到了在jsp中创建的可编辑表，它显示了数据库中的整个表，在最后一列的旁边，我得到了“编辑”按钮，它更新了特定的行。问题是，单击“编辑”后，编辑的行不希望更新，并且控制台中会出现任何错误。我做错了什么

控制器：

@RequestMapping(value="/employeelist.html", method = RequestMethod.POST)
    public ModelAndView editOrDeleteEmployee(Model model, @ModelAttribute("employee") Employee employee, @RequestParam String editEmployee) throws SQLException{

        setAppContext();        

        clinicService.updateEmployee(employee, "2");

        List<Employee> employees = clinicService.getAllEmployees(); 
        model.addAttribute("employees", employees);

        ModelAndView mstaff = new ModelAndView("EmployeeList");
        return mstaff;

    }

服务：

public void updateEmployee(Employee employee, String id) {
    ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("clinicconfig.xml");
    employeeDAO = ctx.getBean("employeeDAO", EmployeeDAOImpl.class);

    employee.setName(employee.getName());
    employee.setLastName(employee.getLastName());
    employee.setGender(employee.getGender());
    employee.setPosition(employee.getPosition());
    employee.setSalary(employee.getSalary());
    employee.setPhoneNumber(employee.getPhoneNumber());
    employee.setAddress(employee.getAddress());
    employee.setId(employee.getId());

    id = employee.getId();

    employeeDAO.updateEmployee(employee, id);

}

JSP文件：

 <c:forEach items="${employees}" var="employee">
            <tr style="font-size: 10">
                <td>${employee.id}</td>
                <td><div contentEditable='true'>${employee.name}</div></td>
                <td><div contentEditable='true'>${employee.lastName}</div></td>
                <td><div contentEditable='true'>${employee.gender}</div></td>
                <td><div contentEditable='true'>${employee.position}</div></td>
                <td><div contentEditable='true'>${employee.salary}</div></td>
                <td><div contentEditable='true'>${employee.phoneNumber}</div></td>
                <td><div contentEditable='true'>${employee.address}</div></td>
                <td><form action="/VirtualClinic/employeelist.html?editEmployee=${employee.id}"  method="POST"><input type="submit" value="Edit"/></form></td>
            </tr>
            </c:forEach>

${employee.id}
${employee.name}
${employee.lastName}
${employee.gender}
${employee.position}
${employee.salary}
${employee.phoneNumber}
${employee.address}

您确定，您在控制器中接收到

员工

对象以及员工ID吗？我确定它不为空，在POST方法中，我添加了system.out.prinln（员工）并在控制台中显示了一些内容，其他DAO方法工作正常，因此我认为收到了该对象

 <c:forEach items="${employees}" var="employee">
            <tr style="font-size: 10">
                <td>${employee.id}</td>
                <td><div contentEditable='true'>${employee.name}</div></td>
                <td><div contentEditable='true'>${employee.lastName}</div></td>
                <td><div contentEditable='true'>${employee.gender}</div></td>
                <td><div contentEditable='true'>${employee.position}</div></td>
                <td><div contentEditable='true'>${employee.salary}</div></td>
                <td><div contentEditable='true'>${employee.phoneNumber}</div></td>
                <td><div contentEditable='true'>${employee.address}</div></td>
                <td><form action="/VirtualClinic/employeelist.html?editEmployee=${employee.id}"  method="POST"><input type="submit" value="Edit"/></form></td>
            </tr>
            </c:forEach>