实施/覆盖MongoRepository保持HATEOAS格式 [英] Implementing/Overriding MongoRepository Keep HATEOAS Formatting

问题描述

我有一个简单的MongoRepository，我想对其进行修改以在post(save())上返回生成的ObjectId.

I have a simple MongoRepository I would like to modify to return the generated ObjectId on post(save()).

public interface EmployeeRepository extends MongoRepository<Employee, String>
{   
    public void delete(Employee employee);
    public Employee save(Employee employee);
    public Employee findOne(String id);
    public List<Employee> findAll();
    public Employee findByName(String principal);
}

我已经探索了生成id客户端并在发布后传递的方法，但我真的希望Spring能够处理此问题.

I have explored ways to generate the id client side and pass it in the post BUT I really want Spring to handle this.

我尝试用控制器进行拦截并在ResponseBody中返回对象，如下所示:

I've tried intercepting with a controller and returning the object in the ResponseBody, like so:

@RequestMapping(value=URI_EMPLOYEES, method=RequestMethod.POST)
public @ResponseBody Employee addEmployee(@RequestBody Employee employee) {
    return repo.save(employee);
}

这个问题是它迫使我重新设计Spring为我处理的与HATEOAS相关的所有逻辑.这是一个主要的痛苦. (除非我缺少任何东西.)

Problem with this is it forces me to re-work all the HATEOAS related logic Spring handles for me. Which is a MAJOR pain. (Unless I'm missing something.)

无需替换所有方法的最有效方法是什么?

What's the most effective way of doing this without having to replace all of the methods?

推荐答案

正在使用 @Controller 而不是 @RepositoryRestController ，这导致事情发生了.

Was using @Controller instead of @RepositoryRestController which was causing things to act up.

我们现在可以轻松覆盖此资源上的POST方法，以返回我们想要的任何内容，同时保持spring-data-rest的EmployeeRepository实现完好无损.

We can now easily override the POST method on this resource to return whatever we want while keeping spring-data-rest's implementation of the EmployeeRepository intact.

@RepositoryRestController
public class EmployeeController {

    private final static String URI_EMPLOYEES = "/employees";

    @Autowired private EmployeeRepository repo;

    @RequestMapping(value=URI_EMPLOYEES, method=RequestMethod.POST)
    public @ResponseBody HttpEntity<Employee> addVideo(@RequestBody Employee employee) {
        return new ResponseEntity<Employee>(repo.save(employee), HttpStatus.OK);
    }
}

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