小贝子编程

不支持 DBRef分辨率



我找不到我做错了什么。我想要做的是从帐户类到车辆的引用

@Document(collection = "cuentas")
public class CuentaDTO {
@Id
@NonNull
private String cuentaId = UUID.randomUUID().toString().substring(0,3);
private String nombre;
private String telefono;
private String cedula;
private Integer edad;
//@Field("placa")
@DBRef()
private VehiculoDTO vehiculoDTO;
public CuentaDTO(@NonNull String cuentaId, String nombre, String telefono, String 
cedula, Integer edad, VehiculoDTO vehiculoDTO) {
this.cuentaId = cuentaId;
this.nombre = nombre;
this.telefono = telefono;
this.cedula = cedula;
this.edad = edad;
this.vehiculoDTO = vehiculoDTO;
}
public String getCuentaId() {
return cuentaId;
}
public void setCuentaId(String cuentaId) {
this.cuentaId = cuentaId;
}
public String getNombre() {
return nombre;
}
public void setNombre(String nombre) {
this.nombre = nombre;
}
public String getTelefono() {
return telefono;
}
public void setTelefono(String telefono) {
this.telefono = telefono;
}
public String getCedula() {
return cedula;
}
public void setCedula(String cedula) {
this.cedula = cedula;
}
public Integer getEdad() {
return edad;
}
public void setEdad(Integer edad) {
this.edad = edad;
}
public VehiculoDTO getVehiculo() {
return vehiculoDTO;
}
public void setVehiculo(VehiculoDTO vehiculoDTO) {
this.vehiculoDTO = vehiculoDTO;
}
}

第二实体

@Document(collection = "vehiculos")
public class VehiculoDTO {
@Id
private String placa;
private String marca;
private Integer modelo;
private Integer capacidad;
private String tipo;
public VehiculoDTO(String placa, String marca, Integer modelo, Integer capacidad, 
String tipo) {
this.placa = placa;
this.marca = marca;
this.modelo = modelo;
this.capacidad = capacidad;
this.tipo = tipo;
}
public String getPlaca() {
return placa;
}
public void setPlaca(String placa) {
this.placa = placa;
}
public String getMarca() {
return marca;
}
public void setMarca(String marca) {
this.marca = marca;
}
public Integer getModelo() {
return modelo;
}
public void setModelo(Integer modelo) {
this.modelo = modelo;
}
public Integer getCapacidad() {
return capacidad;
}
public void setCapacidad(Integer capacidad) {
this.capacidad = capacidad;
}
public String getTipo() {
return tipo;
}
public void setTipo(String tipo) {
this.tipo = tipo;
}
}

是我得到的错误此应用程序没有配置错误视图，因此您可以将其视为后备方案。

Mon Apr 25 21:30:37 COT 2022
[c7e63705-15] There was an unexpected error (type=Internal Server Error, status=500).
DBRef resolution is not supported!
java.lang.UnsupportedOperationException: DBRef resolution is not supported!
at org.springframework.data.mongodb.core.convert.NoOpDbRefResolver.handle(NoOpDbRefResolver.java:71)
Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below: 
Error has been observed at the following site(s):
*__checkpoint ⇢ Handler com.sofka.app.transportecargaback.Cuenta.controller.CuentaController#findALl() [DispatcherHandler]
*__checkpoint ⇢ springfox.boot.starter.autoconfigure.SwaggerUiWebFluxConfiguration$CustomWebFilter [DefaultWebFilterChain]
*__checkpoint ⇢ HTTP GET "/cuenta" [ExceptionHandlingWebHandler]
Original Stack Trace:
at org.springframework.data.mongodb.core.convert.NoOpDbRefResolver.handle(NoOpDbRefResolver.java:71)
at org.springframework.data.mongodb.core.convert.NoOpDbRefResolver.fetch(NoOpDbRefResolver.java:58)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.readRef(MappingMongoConverter.java:1630)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.bulkReadAndConvertDBRefs(MappingMongoConverter.java:1576)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.readDBRef(MappingMongoConverter.java:1549)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$ConversionContext.convert(MappingMongoConverter.java:2068)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$MongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1779)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$AssociationAwareMongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1833)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$AssociationAwareMongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1791)
at org.springframework.data.mapping.model.PersistentEntityParameterValueProvider.getParameterValue(PersistentEntityParameterValueProvider.java:74)
at org.springframework.data.mapping.model.SpELExpressionParameterValueProvider.getParameterValue(SpELExpressionParameterValueProvider.java:53)
at org.springframework.data.mapping.model.ClassGeneratingEntityInstantiator.extractInvocationArguments(ClassGeneratingEntityInstantiator.java:276)
at org.springframework.data.mapping.model.ClassGeneratingEntityInstantiator$EntityInstantiatorAdapter.createInstance(ClassGeneratingEntityInstantiator.java:248)
at org.springframework.data.mapping.model.ClassGeneratingEntityInstantiator.createInstance(ClassGeneratingEntityInstantiator.java:89)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:390)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.readDocument(MappingMongoConverter.java:356)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:292)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:288)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:107)
at org.springframework.data.mongodb.core.ReactiveMongoTemplate$ReadDocumentCallback.doWith(ReactiveMongoTemplate.java:3247)
at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:376)
at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onNext(FluxConcatMap.java:251)
at reactor.core.publisher.FluxCreate$BufferAsyncSink.drain(FluxCreate.java:793)
at reactor.core.publisher.FluxCreate$BufferAsyncSink.next(FluxCreate.java:718)
at reactor.core.publisher.FluxCreate$SerializedFluxSink.next(FluxCreate.java:154)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
at com.mongodb.reactivestreams.client.internal.BatchCursorFlux.lambda$recurseCursor$4(BatchCursorFlux.java:94)
at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:171)
at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onNext(FluxPeekFuseable.java:854)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.success(MonoCreate.java:165)
at com.mongodb.reactivestreams.client.internal.MongoOperationPublisher.lambda$sinkToCallback$30(MongoOperationPublisher.java:549)
at com.mongodb.internal.operation.AsyncQueryBatchCursor.next(AsyncQueryBatchCursor.java:167)
at com.mongodb.reactivestreams.client.internal.BatchCursor.lambda$next$0(BatchCursor.java:35)
at reactor.core.publisher.MonoCreate.subscribe(MonoCreate.java:57)
at reactor.core.publisher.Mono.subscribe(Mono.java:4400)
at reactor.core.publisher.Mono.subscribeWith(Mono.java:4515)
at reactor.core.publisher.Mono.subscribe(Mono.java:4232)
at com.mongodb.reactivestreams.client.internal.BatchCursorFlux.recurseCursor(BatchCursorFlux.java:104)
at com.mongodb.reactivestreams.client.internal.BatchCursorFlux.lambda$subscribe$0(BatchCursorFlux.java:56)
at reactor.core.publisher.LambdaMonoSubscriber.onNext(LambdaMonoSubscriber.java:171)
at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120)
at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82)
at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82)
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816)
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249)
at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.success(MonoCreate.java:165)
at com.mongodb.reactivestreams.client.internal.MongoOperationPublisher.lambda$sinkToCallback$30(MongoOperationPublisher.java:549)
at com.mongodb.reactivestreams.client.internal.OperationExecutorImpl.lambda$execute$2(OperationExecutorImpl.java:92)
at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:48)
at com.mongodb.internal.async.function.AsyncCallbackSupplier.lambda$whenComplete$1(AsyncCallbackSupplier.java:95)
at com.mongodb.internal.async.function.RetryingAsyncCallbackSupplier$RetryingCallback.onResult(RetryingAsyncCallbackSupplier.java:114)
at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:48)
at com.mongodb.internal.async.function.AsyncCallbackSupplier.lambda$whenComplete$1(AsyncCallbackSupplier.java:95)
at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:48)
at com.mongodb.internal.async.function.AsyncCallbackSupplier.lambda$whenComplete$1(AsyncCallbackSupplier.java:95)
at com.mongodb.internal.operation.FindOperation$2.onResult(FindOperation.java:762)
at com.mongodb.internal.operation.CommandOperationHelper.lambda$transformingReadCallback$10(CommandOperationHelper.java:329)
at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:48)
at com.mongodb.internal.connection.DefaultServer$DefaultServerProtocolExecutor$2.onResult(DefaultServer.java:280)
at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:48)
at com.mongodb.internal.connection.CommandProtocolImpl$1.onResult(CommandProtocolImpl.java:84)
at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection$1.onResult(DefaultConnectionPool.java:687)
at com.mongodb.internal.connection.UsageTrackingInternalConnection$2.onResult(UsageTrackingInternalConnection.java:159)
at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:48)
at com.mongodb.internal.connection.InternalStreamConnection$2$1.onResult(InternalStreamConnection.java:526)
at com.mongodb.internal.connection.InternalStreamConnection$2$1.onResult(InternalStreamConnection.java:503)
at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback$MessageCallback.onResult(InternalStreamConnection.java:815)
at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback$MessageCallback.onResult(InternalStreamConnection.java:782)
at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:650)
at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:647)
at com.mongodb.connection.netty.NettyStream.readAsync(NettyStream.java:319)
at com.mongodb.connection.netty.NettyStream.readAsync(NettyStream.java:266)
at com.mongodb.internal.connection.InternalStreamConnection.readAsync(InternalStreamConnection.java:647)
at com.mongodb.internal.connection.InternalStreamConnection.access$600(InternalStreamConnection.java:86)
at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback.onResult(InternalStreamConnection.java:772)
at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback.onResult(InternalStreamConnection.java:757)
at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:650)
at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:647)
at com.mongodb.connection.netty.NettyStream.readAsync(NettyStream.java:319)
at com.mongodb.connection.netty.NettyStream.handleReadResponse(NettyStream.java:347)
at com.mongodb.connection.netty.NettyStream.access$1100(NettyStream.java:105)
at com.mongodb.connection.netty.NettyStream$InboundBufferHandler.channelRead0(NettyStream.java:421)
at com.mongodb.connection.netty.NettyStream$InboundBufferHandler.channelRead0(NettyStream.java:418)
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1372)
at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1235)
at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1284)
at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:510)
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:449)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:658)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:584)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)

我事先感谢你的帮助。

您错过了在VehiculoDTO中的映射。当你做参考时，你需要把它放在两边。当然，你需要为它处理赋值。

@Document(collection = "vehiculos")
public class VehiculoDTO {
@Id
private String placa;
private String marca;
private Integer modelo;
private Integer capacidad;
private String tipo;
@DBRef
private CuentaDTO cuentaDTO;
public VehiculoDTO(String placa, String marca, Integer modelo, Integer capacidad, 
String tipo) {
this.placa = placa;
this.marca = marca;
this.modelo = modelo;
this.capacidad = capacidad;
this.tipo = tipo;
}
public String getPlaca() {
return placa;
}
public void setPlaca(String placa) {
this.placa = placa;
}
public String getMarca() {
return marca;
}
public void setMarca(String marca) {
this.marca = marca;
}
public Integer getModelo() {
return modelo;
}
public void setModelo(Integer modelo) {
this.modelo = modelo;
}
public Integer getCapacidad() {
return capacidad;
}
public void setCapacidad(Integer capacidad) {
this.capacidad = capacidad;
}
public String getTipo() {
return tipo;
}
public void setTipo(String tipo) {
this.tipo = tipo;
}

public String getCuentaDTO() {
return cuentaDTO;
}
public void setCuentaDTO(String cuentaDTO) {
this.cuentaDTO = cuentaDTO;
}

第二个可能的原因:

我在GitHub的spring-data-mongo问题上发现了类似的问题

如果您在Maven或Gradlespring-boot-starter-data-mongodb-reactive中使用不支持@DBref映射，可能会出现问题。

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>

试着用:

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>

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