可以新增,但是卻不能夠修改,數據庫沒有update成功代碼塊如下@Service public class EmployeeService {     @Autowired     private EmployeeManager employeeManager;     public Employee doSaveEmployee(Employee employee) throws Exception {         try {             Employee result = new Employee();             if (employee.getId() == null) {                 result.setIsDelete("0");                 result = employee;             } else {                 result = this.employeeManager.load(employee.getId());                 result.setName(employee.getName());                 result.setPost(employee.getPost());                 result.setAge(employee.getAge());                 result.setAddress(employee.getAddress());                 result.setBirth(employee.getBirth());                 result.setIdcard(employee.getIdcard());                 result.setSex(employee.getSex());                 result.setPhone(employee.getPhone());             }             employeeManager.save(result);             return result;         }catch (Exception e){             e.printStackTrace();             throw e;         }     } }