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我有一个名为Veiculoand的类Agencia，其中Veiculo拥有作为参考Agencia。当它不是列表时，我可以传递URI 引用以及以下示例。但是我怎么当一个列表呢？如果有人可以帮助我，我将不胜感激

没有 getter 和 setter 的实体

韦库洛

@Document
public class Veiculo{

    @Id
    private String id;

    @Indexed(unique = true)
    private String nome;
    private String tipo;
    @DBRef
    List<Contato> contatos;

    @DBRef
    List<Agencia> agencias;

}

通讯社

@Document
public class Agencia {

    @Id
    String id;
    @NotNull
    String nome;

    @CreatedBy
    String createdBy;

    @LastModifiedBy
    String lastModifiedBy;

    @CreatedDate
    @DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
    Date createdAt;

    @LastModifiedDate
    @DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
    Date lastModified;
}

Veiculo 存储库

@RepositoryRestResource(collectionResourceRel = "veiculos", path = "veiculos")
public interface VeiculoRepository extends MongoRepository<Veiculo, String> {
    Veiculo save(Veiculo veiculo);
    List<Veiculo> findAll();
}

通讯社资料库

@RepositoryRestResource(collectionResourceRel = "agencias", path = "agencias")
public interface AgenciaRepository extends MongoRepository<Agencia, String> {

    Agencia save(Agencia t);
    List<Agencia> findAll();
    Agencia findByNome(@Param("nome") String nome);
}

卷曲

在 /api/agencias 中发布

daniela@daniela-tars:~$ curl -i -X POST -H "Content-Type: application/json" -d '{"nome": "Agencia"}' localhost:8181/api/agencias
HTTP/1.1 201 Created
Server: Apache-Coyote/1.1
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: 0
X-Frame-Options: DENY
Last-Modified: Tue, 21 Jul 2015 01:58:40 GMT
Last-Modified: Tue, 21 Jul 2015 01:58:40 GMT
Location: http://localhost:8181/api/agencias/55ada75044ae41ca763aa3b4
Content-Type: application/hal+json;charset=UTF-8
Transfer-Encoding: chunked
Date: Tue, 21 Jul 2015 01:58:40 GMT

{
  "nome" : "Agencia",
  "createdBy" : "anonymousUser",
  "lastModifiedBy" : "anonymousUser",
  "createdAt" : "2015-07-21T01:58:40.021+0000",
  "lastModified" : "2015-07-21T01:58:40.021+0000",
  "_links" : {
    "self" : {
      "href" : "http://localhost:8181/api/agencias/55ada75044ae41ca763aa3b4"
    }
  }
}

在 /api/veiculos 中发布

daniela@daniela-tars:~$ curl -i -X POST -H "Content-Type: application/json" -d '{"nome": "Veiculo", "tipo": "Tipo"}' localhost:8181/api/veiculosHTTP/1.1 201 Created
Server: Apache-Coyote/1.1
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: 0
X-Frame-Options: DENY
Location: http://localhost:8181/api/veiculos/55ada77344ae41ca763aa3b7
Content-Type: application/hal+json;charset=UTF-8
Transfer-Encoding: chunked
Date: Tue, 21 Jul 2015 01:59:15 GMT

{
  "nome" : "Veiculo",
  "tipo" : "Tipo",
  "_links" : {
    "self" : {
      "href" : "http://localhost:8181/api/veiculos/55ada77344ae41ca763aa3b7"
    },
    "contatos" : {
      "href" : "http://localhost:8181/api/veiculos/55ada77344ae41ca763aa3b7/contatos"
    },
    "agencias" : {
      "href" : "http://localhost:8181/api/veiculos/55ada77344ae41ca763aa3b7/agencias"
    }
  }
}

关联 URI

    daniela@daniela-tars:~$ curl -i -X PUT -H "Content-Type: text/uri-list" -d "http://localhost:8181/api/agencias/55ada75044ae41ca763aa3b4" http://localhost:8181/api/veiculos/55ada77344ae41ca763aa3b7/agencias
    HTTP/1.1 204 No Content
    Server: Apache-Coyote/1.1
    X-Content-Type-Options: nosniff
    X-XSS-Protection: 1; mode=block
    Cache-Control: no-cache, no-store, max-age=0, must-revalidate
    Pragma: no-cache
    Expires: 0
    X-Frame-Options: DENY
    Date: Tue, 21 Jul 2015 02:00:13 GMT
    daniela@daniela-tars:~$ curl localhost:8181/api/veiculos
    {"timestamp":1437444045504,"status":500,"error":"Internal Server Error","exception":"org.springframework.dao.InvalidDataAccessResourceUsageException","message":"no db; nested exception is com.mongodb.MongoInternalException: no db","path":"/api/veiculos"}
daniela@daniela-tars:~$ curl localhost:8181/api/veiculos/55ada77344ae41ca763aa3b7
    {"timestamp":1437444071205,"status":500,"error":"Internal Server Error","exception":"org.springframework.dao.InvalidDataAccessResourceUsageException","message":"no db; nested exception is com.mongodb.MongoInternalException: no db","path":"/api/veiculos/55ada77344ae41ca763aa3b7"}

日志

org.springframework.dao.InvalidDataAccessResourceUsageException：没有数据库；嵌套异常是 com.mongodb.MongoInternalException: no db at org.springframework.data.mongodb.core.MongoExceptionTranslator.translateExceptionIfPossible(MongoExceptionTranslator.java:77) at org.springframework.data.mongodb.core.MongoTemplate.potentiallyConvertRuntimeException(MongoTemplate.java :2011) 在 org.springframework.data.mongodb.core.MongoTemplate.doFindOne(MongoTemplate.java:1654) 在 org.springframework 的 org.springframework.data.mongodb.core.MongoTemplate.executeFindOneInternal(MongoTemplate.java:1841)。 data.mongodb.core.MongoTemplate.findById(MongoTemplate.java:613) 在 org.springframework.data.mongodb.repository.support.SimpleMongoRepository.findOne(SimpleMongoRepository.java:119) 在 sun.reflect.NativeMethodAccessorImpl。

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1 回答 1

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The resource serving Veiculo instances exposes links to an association resource for both Contato and Agencia. You can POST payloads with a media type text/uri-list to them to assign references to the Veiculo.

于 2015-07-20T16:31:58.847 回答