org.apache.camel.NoTypeConversionAvailableException：タイプ変換ができないタイプから変換する：

私は最初にマルチパートファイルを持っています。私はそれをラクダパイプラインに送って元の名前でこのファイルを保存します。org.apache.camel.NoTypeConversionAvailableException：タイプ変換ができないタイプから変換する：

私のコード：私は別の側に

@Autowired 
ProducerTemplate producerTemplate; 
... 
     producerTemplate.sendBody("seda:rest_upload", multipartFile);

：.convertBodyTo（File.class）.TO（ "ファイル：// rest_files"）：

（ "rest_upload SEDA"）から;

Message History 
--------------------------------------------------------------------------------------------------------------------------------------- 
RouteId    ProcessorId   Processor                  Elapsed (ms) 
[route2   ] [route2   ] [seda://rest_upload               ] [   3] 
[route2   ] [convertBodyTo1 ] [convertBodyTo[java.io.File]             ] [   2] 

Stacktrace 
--------------------------------------------------------------------------------------------------------------------------------------- 

org.apache.camel.InvalidPayloadException: No body available of type: java.io.File but has value: org.springframework.web.multipart.su[email protected]24c9ecc7 of type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile on: Message[ID-ntkachev-1509013331141-0-13]. Caused by: No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7. Exchange[ID-ntkachev-1509013331141-0-14]. Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7] 
    at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:113) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.ConvertBodyProcessor.process(ConvertBodyProcessor.java:91) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:138) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:101) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.component.seda.SedaConsumer.sendToConsumers(SedaConsumer.java:298) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:210) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:155) [camel-core-2.20.0.jar:2.20.0] 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111] 
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111] 
Caused by: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7 
    at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:206) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:111) ~[camel-core-2.20.0.jar:2.20.0] 
    ... 12 common frames omitted 

2017-10-26 13:30:58.447 WARN 19608 --- [a://rest_upload] o.a.camel.component.seda.SedaConsumer : Error processing exchange. Exchange[]. Caused by: [org.apache.camel.InvalidPayloadException - No body available of type: java.io.File but has value: org.springframework.web.multipart.su[email protected]24c9ecc7 of type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile on: Message[ID-ntkachev-1509013331141-0-13]. Caused by: No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7. Exchange[ID-ntkachev-1509013331141-0-14]. Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7]] 

org.apache.camel.InvalidPayloadException: No body available of type: java.io.File but has value: org.springframework.web.multipart.su[email protected]24c9ecc7 of type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile on: Message[ID-ntkachev-1509013331141-0-13]. Caused by: No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7. Exchange[ID-ntkachev-1509013331141-0-14]. Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7] 
    at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:113) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.ConvertBodyProcessor.process(ConvertBodyProcessor.java:91) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:138) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:101) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.component.seda.SedaConsumer.sendToConsumers(SedaConsumer.java:298) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:210) [camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:155) [camel-core-2.20.0.jar:2.20.0] 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111] 
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111] 
Caused by: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.StandardMultipartFile to the required type: java.io.File with value org.springframework.web.multipart.su[email protected]24c9ecc7 
    at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:206) ~[camel-core-2.20.0.jar:2.20.0] 
    at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:111) ~[camel-core-2.20.0.jar:2.20.0] 
    ... 12 common frames omitted

どのようにこの問題を解決するために：私はスタックトレースは、以下を参照してください私のコードを実行すると

@Converter 
public class MultiPartFileToFileConvertor { 
    @Converter 
    public static File toFile(MultipartFile multipartFile) throws IOException { 
     File convFile = new File(multipartFile.getOriginalFilename()); 
     multipartFile.transferTo(convFile); 
     return convFile; 
    } 
}

：

そしてまた、私がしようとは、コンバータを登録するには？

出典

2017-10-26 gstackoverflow

ファイルタイプに変換しない場合は、救われるように送るだけですか？ –

sendBody呼び出しの前にファイルを作成して送信することをお勧めしますか？ – gstackoverflow

私は、from（ "seda：rest_upload"）.convertBodyTo（File.class）.to（ "file：// rest_files"）からの変更を意味します。 from（ "seda：rest_upload"）.to（ "file：// rest_files"）。 –

TypeConverterという名前のサービス検出ファイルをMETA-INFディレクトリに追加する必要があります。

src\main\resources\META-INF\services\org\apache\camel\TypeConverter

このファイルは @Converterクラスの完全修飾名が含まれています。

例えば

mypackage.MultiPartFileToFileConvertor

もGithubのhttps://github.com/camelinaction/camelinaction2/tree/b6a43abf9e0d4ec4e3753ebd735bb3448f98194b/chapter3/converterにアクション2にラクダからの例を参照します。

また、第3.6章では、カスタムコンバータの検出とロードの詳細について説明しています。

出典

2017-10-26 13:25:47 ltsallas

を得るべきではありませんサービスは、インターフェイスを提供していますか？ – gstackoverflow

あなたのコメントを理解できませんでした。リソースにファイルを追加しましたか？ – ltsallas

Cameは自動的にこのhttps://github.com/apache/camel/blob/master/camel-core/src/main/java/org/apache/camel/impl/converter/AnnotationTypeConverterLoader.java – ltsallas

org.apache.camel.NoTypeConversionAvailableException：タイプ変換ができないタイプから変換する：

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