从hibernate和Spring MVC中的一个控制器访问两个服务方法

Question

我从一个控制器访问2个服务方法。我想创建一个任务，但同时我想创建新的角色，并将其自动增量id分配给任务的roleId(外键)。它是一个一对一的映射。

我可以在simpleformcontroller中实现吗?我该怎么做呢?

public class CreateTaskController extends SimpleFormController {

 HResourceService hrService;         // Create a Service class instance.
 public void setHResourceService(HResourceService hrservice) {
    this.hrService = hrservice;
}
public CreateTaskController() {
    setCommandClass(Task.class);
        `

@Override受保护的ModelAndView onSubmit(对象命令)抛出异常{

    Task task = (Task) command;
    //ContactService.createContact(contact);
    hrService.createTask(task);
    ModelAndView mv = new ModelAndView();
    mv.setViewName(getSuccessView());
    mv.addObject("taskCreated", task.getDescription());    // Pass response to taskCreated view
    return mv;
}

} '

Answer 1

如果hibernate bean之间有正确的关系定义，应该没有问题。

public class Role implements Serializable {
   @OneToOne(cascade=CascadeType.ALL,mappedBy="task")    
   private Task task;
}
public class Task implements Serializable {
....
   @OneToOne
   @JoinColumn(cascade=CascadeType.ALL,"role_id")
   private Role role;
....
}
@Override protected ModelAndView onSubmit(Object command) throws Exception {
    Task task = (Task) command;
    task.setRole(new Role("big_brother").setTask(task));
    hrService.createTask(task);
    ModelAndView mv = new ModelAndView();
    mv.setViewName(getSuccessView());
    mv.addObject("taskCreated", task.getDescription());    // Pass response to taskCreated view
    return mv;
}