Java Apache骆驼缓存配置不工作

我想将不可序列化的对象放入camel缓存并获取。 在缓存的路由配置中，我将objectCache参数设置为true，如下所示

 from("cache://MyCache"
           + "?maxElementsInMemory=5" +
            "&memoryStoreEvictionPolicy=" +
            "MemoryStoreEvictionPolicy.FIFO" +
            "&overflowToDisk=false" +
            "&timeToLiveSeconds=300" +
            "&objectCache=true" +
            "&diskExpiryThreadIntervalSeconds=30").to("mock:endpoint");

使用以下代码插入到缓存中没有问题

from("direct:addToCache").process(new Processor() {
            @Override
            public void process(Exchange exchange) throws Exception {
                MyObject ad = (MyObject) exchange.getIn().getBody();
                String key= ad.getId();
                WebServiceResponse value= ad.getWebServiceResponse();
                exchange.getIn().setHeader(CacheConstants.CACHE_OPERATION, CacheConstants.CACHE_OPERATION_ADD);
                exchange.getIn().setHeader(CacheConstants.CACHE_KEY, key);
                exchange.getIn().setBody(value);
            }
        }).to("cache://MyCache");

但在从缓存中获取元素时引发异常

org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: com.aaa.model.WebServiceResponse to the required type: java.io.InputStream with value com.aaa.model.WebServiceResponse@5781f3d4
 at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:185)
 at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:156)
 at org.apache.camel.component.cache.CacheProducer.createElementFromBody(CacheProducer.java:132)
 at org.apache.camel.component.cache.CacheProducer.performCacheOperation(CacheProducer.java:82)
 at org.apache.camel.component.cache.CacheProducer.process(CacheProducer.java:71)
 at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
 at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:141)
 at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
 at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:460)
 at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
 at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
 at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
 at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
 at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
 at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
 at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
 at org.apache.camel.processor.UnitOfWorkProducer.process(UnitOfWorkProducer.java:68)
 at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:412)
 at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:380)
 at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:270)
 at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:380)

调试CacheProducerClass.createElementFromBody方法时，我注意到objectCache参数设置为false。所有其他参数都设置为默认值。（maxElementsInMemory=1000和MemoryStoreReceivingPolicy=MemoryStoreReceivingPolicy.LFU）

com.aaa.model.WebServiceResponse类不可序列化

你知道这个问题吗？

---

为什么缓存参数不被缓存定义中的值覆盖？

我也有同样的问题，不知道为什么，当一个元素添加到缓存中时，所有参数都重置为默认值

我找到的解决方案是，在添加元素时，再次指定所有参数及其值

例如，如果您将代码更改为以下内容，它应该可以工作

from("direct:addToCache").process(new Processor() {
            @Override
            public void process(Exchange exchange) throws Exception {
                MyObject ad = (MyObject) exchange.getIn().getBody();
                String key= ad.getId();
                WebServiceResponse value= ad.getWebServiceResponse();
                exchange.getIn().setHeader(CacheConstants.CACHE_OPERATION, CacheConstants.CACHE_OPERATION_ADD);
                exchange.getIn().setHeader(CacheConstants.CACHE_KEY, key);
                exchange.getIn().setBody(value);
            }
        }).to("cache://MyCache"
           + "?maxElementsInMemory=5" +
            "&memoryStoreEvictionPolicy=" +
            "MemoryStoreEvictionPolicy.FIFO" +
            "&overflowToDisk=false" +
            "&timeToLiveSeconds=300" +
            "&objectCache=true" +
            "&diskExpiryThreadIntervalSeconds=30").to("mock:endpoint");

---

我也有同样的问题，不知道为什么，当一个元素被添加到缓存中时，所有参数都重置为默认值

我找到的解决方案是，在添加元素时，再次指定所有参数及其值

例如，如果您将代码更改为以下内容，它应该可以工作

from("direct:addToCache").process(new Processor() {
            @Override
            public void process(Exchange exchange) throws Exception {
                MyObject ad = (MyObject) exchange.getIn().getBody();
                String key= ad.getId();
                WebServiceResponse value= ad.getWebServiceResponse();
                exchange.getIn().setHeader(CacheConstants.CACHE_OPERATION, CacheConstants.CACHE_OPERATION_ADD);
                exchange.getIn().setHeader(CacheConstants.CACHE_KEY, key);
                exchange.getIn().setBody(value);
            }
        }).to("cache://MyCache"
           + "?maxElementsInMemory=5" +
            "&memoryStoreEvictionPolicy=" +
            "MemoryStoreEvictionPolicy.FIFO" +
            "&overflowToDisk=false" +
            "&timeToLiveSeconds=300" +
            "&objectCache=true" +
            "&diskExpiryThreadIntervalSeconds=30").to("mock:endpoint");