如何在 Spring MVC 中将正确的 JSON 传递给控制器​​？

我不明白为什么在将 POST 请求传递给时会收到 HTTP 415http://localhost:8080/company

我在 POST 请求中的 JSON

{
    "id" : 7,
    "name" : "IBM"
}

这是我在控制器中的方法

@Controller
@RequestMapping("/company")
public class CompanyController {

    @Autowired
    CompanyRepository companyRepository;

    @RequestMapping(method = RequestMethod.GET,
            produces = MediaType.APPLICATION_JSON_VALUE)
    @ResponseBody
    public Collection<Company> getAll() {
        return companyRepository.getCompanies();
    }

    @RequestMapping(method = RequestMethod.POST,
                    consumes = MediaType.APPLICATION_JSON_VALUE)
    public String add(@RequestBody Company company) {
        companyRepository.save(company);
        return "redirect:/company";
    }
}

还有我的实体

@Entity
@Table(name = "company")
public class Company implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    @Column
    private String name;

    @JsonIgnore
    @OneToMany(mappedBy = "company")
    @LazyCollection(LazyCollectionOption.FALSE)
    private Collection<Employee> employees;

有什么想法如何修复它吗？

UPD:

响应消息：The server refused this request because the request entity is in a format not supported by the requested resource for the requested method

你会注意到你的方法被注释为

@RequestMapping(method = RequestMethod.POST,
                consumes = MediaType.APPLICATION_JSON_VALUE)

The consumes是一个限制@RequestMapping说这个方法只会处理具有Content-Type of application/json。您的请求似乎没有该标头。你需要添加它。