TypeConversion例外：Apache的骆驼和CXF [英] TypeConversion Exception : Apache Camel and CXF

问题描述

我试图与Apache集成骆驼CXF RESTful Web服务。我得到了以下异常，当我请求发送到我的web服务：

 产生的原因：org.apache.camel.NoTypeConversionAvailableException：没有可用的类型转换器从类型转换：org.apache.cxf.message.MessageContentsList到所需的类型：java.io. InputStream的值为[空]
    在org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:147)
    在org.apache.camel.impl.MessageSupport.getMandatoryBody（MessageSupport.java:100）
    ... 68更多
 

我贴我的配置XML的部分进行审核：

 ＆LT; JAXRS：服务器ID =restContainer地址=/staticSubresourceResolution =真＆GT;＆LT; JAXRS：serviceBeans＆GT;
    ＆LT;参考豆=FooBar的/＆GT;
＆LT; / JAXRS：serviceBeans＆GT;＆LT; JAXRS：供应商＆GT;
    ＆LT; bean类=org.apache.cxf.jaxrs.provider.JSONProvider＆GT;
    ＆LT;属性名=dropRootElementVALUE =真/＆GT;
    ＆LT;属性名=supportUnwrappedVALUE =真/＆GT;
＆LT; / JAXRS：供应商＆GT;＆LT; camelcxf：rsServer ID =rsServer地址=HTTP：//本地主机：端口/为MyApplication / REST / foobar的serviceClass =com.camel.example.FooBar/＆GT;＆LT;骆驼：camelContext ID =camelContext-1＆GT;
    ＆LT;骆驼：路线＆GT;
        ＆LT;骆驼：从URI =cxfrs：豆：rsServer/＆GT;
        ＆LT;骆驼：到URI =htt​​p://www.google.com/＆GT;
    ＆LT; /骆驼：路线＆GT;
＆LT; /骆驼：camelContext＆GT;
 

解决方案

解决..其实问题并没有当我的CXF服务器击中了所有的错误，它出来是当交换是在为部分...
我不得不往返之间增加一个处理器，并覆盖所有CamelHttpUri，CamelHttpMethod等....，使其工作。

 ＆LT; camelcxf：rsServer ID =rsServer地址=HTTP：//本地主机：端口/为MyApplication / REST / foobar的serviceClass =com.camel.example.FooBar/ ＆GT;＆LT;骆驼：camelContext ID =camelContext-1＆GT;＆LT;骆驼：路线＆GT;
＆LT;骆驼：从URI =cxfrs：豆：rsServer/＆GT;
＆LT;骆驼：过程REF =customInProcessor/＆GT;
＆LT;骆驼：到URI =htt​​p://www.google.com/＆GT;
 ＆LT; /骆驼：路线＆GT;
  ＆LT; /骆驼：camelContext＆GT;＆LT;豆的id =customInProcessor级=com.camel.MyInProcessor/＆GT;
 

I am trying to integrate CXF restful web services with Apache Camel. I am getting the following exception when I send a request to my web service:

Caused by: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: org.apache.cxf.message.MessageContentsList to the required type: java.io.InputStream with value [null]
    at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:147)
    at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:100)
    ... 68 more

I am pasting a section of my config xml for review:

<jaxrs:server id="restContainer" address="/" staticSubresourceResolution="true">

<jaxrs:serviceBeans>
    <ref bean="FooBar"/>
</jaxrs:serviceBeans>

<jaxrs:providers>
    <bean class="org.apache.cxf.jaxrs.provider.JSONProvider">
    <property name="dropRootElement" value="true"/>
    <property name="supportUnwrapped" value="true"/>
</jaxrs:providers>

<camelcxf:rsServer id="rsServer" address="http://localhost:port/MyApplication/rest/foobar" serviceClass="com.camel.example.FooBar"/>

<camel:camelContext id="camelContext-1">
    <camel:route>
        <camel:from uri="cxfrs:bean:rsServer"/>
        <camel:to uri="http://www.google.com"/>
    </camel:route>
</camel:camelContext> 

解决方案

solved all the errors.. actually the problem was not when my cxf server was getting hit, it comes out to be when the exchange was in the "to" part... i had to add a processor in between from and to and override all the CamelHttpUri , CamelHttpMethod etc .... to make it work.

<camelcxf:rsServer id="rsServer" address="http://localhost:port/MyApplication/rest/foobar serviceClass="com.camel.example.FooBar" />  <camel:camelContext id="camelContext-1">  <camel:route>  
<camel:from uri="cxfrs:bean:rsServer" />  
<camel:process ref="customInProcessor" />
<camel:to uri="http://www.google.com" /> 
 </camel:route>
  </camel:camelContext> 

<bean id="customInProcessor" class="com.camel.MyInProcessor" />

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