获取BeanCreationException当试图添加杰克逊库 [英] Get BeanCreationException when try to add Jackson Library

问题描述

我有一个传递映射到骆驼和显示的值通过Log4J的控制台简单的Hello World例子。我想加入杰克逊库到我的骆驼的applicationContext.xml

拓展这个例子来呈现这个地图JSON

首先，我尝试添加下面的XML标记的applicationContext.xml我（于指定
http://camel.apache.org/json.html 下的春DSL使用JSON ）

 ＆LT;骆驼：dataFormats＆GT;
    ＆LT;骆驼：JSON ID =杰克库=禅师/＆GT;
＆LT; /骆驼：dataFormats＆GT;
 

但是，当我加入到我的applicationContext.xml，并运行我的Java code我得到以下XmlBeanDefinitionStoreException消息：

  CVC-复杂type.2.4.a：无效的含量被发现开始元素dataFormats。其中一个{http://camel.apache.org/schema/
 春天：路线}'的预期。
 

移动这些标记中或我的camelContext之外产生同样的错误（只是一个URL时的camelContext内的长列表）。

有没有别的东西我需要在我的applicationContext.xml来指定？

下面是我当前的applicationContext.xml：

更新：下面的XML现在的作品。不得不移动dataFormats XML标记的位置。

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;豆的xmlns =htt​​p://www.springframework.org/schema/beans
     XMLNS：XSI =htt​​p://www.w3.org/2001/XMLSchema-instance的xmlns：骆驼=htt​​p://camel.apache.org/schema/spring
的xmlns：上下文=htt​​p://www.springframework.org/schema/context
的xmlns：UTIL =htt​​p://www.springframework.org/schema/util
XSI：的schemaLocation =
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd\">＆LT;豆
    类=org.springframework.context.annotation.CommonAnnotationBeanPostProcessor/＆GT;
＆LT;背景：组件扫描基包=样品/＆GT;
＆LT;背景：注解配置/＆GT;＆LT;骆驼：camelContext ID =HelloWorldContext＆GT;＆LT;骆驼：dataFormats＆GT;
  ＆LT;骆驼：JSON ID =杰克库=禅师/＆GT;
＆LT; /骆驼：dataFormats＆GT;＆LT;骆驼：路线＆GT;     ＆LT;骆驼：从
          URI =？定时器：//hello.world.request.timer固定利率=真放大器;放大器;周期= 10000/＆GT;
     ＆LT;骆驼：到URI =？日志：hello.world.request水平= INFO SHOWALL =真正的/＆GT;
     ＆LT;骆驼：豆REF =的HelloWorld/＆GT;
     ＆LT;骆驼：到URI =日志：？hello.world.response水平= INFO SHOWALL =真正的/＆GT;
＆LT; /骆驼：路线＆GT;＆LT; /骆驼：camelContext＆GT;＆LT;豆的id =JMS级=org.apache.activemq.camel.component.ActiveMQComponent＆GT;
   ＆LT;属性名=配置REF =jmsConfig/＆GT;
＆LT; /豆＆GT;＆LT;豆的id =jmsConfig级=org.apache.camel.component.jms.JmsConfiguration＆GT;
  ＆LT;属性名=connectionFactory的REF =jmsConnectionFactory/＆GT;
  ＆LT;属性名=交易VALUE =FALSE/＆GT;
  ＆LT;属性名=concurrentConsumers值=1/＆GT;
＆LT; /豆＆GT;＆LT;豆的id =jmsConnectionFactory级=org.apache.activemq.ActiveMQConnectionFactory＆GT;
  ＆LT;属性名=brokerURLVALUE =VM：// localhost的/＆GT;
  ＆LT;属性名=redeliveryPolicyREF =redeliveryPolicy/＆GT;
  ＆LT;属性名=prefetchPolicyREF =prefetchPolicy/＆GT;
＆LT; /豆＆GT;＆LT;豆的id =prefetchPolicy级=org.apache.activemq.ActiveMQ prefetchPolicy＆GT;
  ＆LT;属性名=队列prefetchVALUE =5/＆GT;
＆LT; /豆＆GT;＆LT;豆的id =redeliveryPolicy级=org.apache.activemq.RedeliveryPolicy＆GT;
  ＆LT;属性名=maximumRedeliveries值=1/＆GT;
  ＆LT;属性名=backOffMultiplierVALUE =2/＆GT;
  ＆LT;属性名=initialRedeliveryDelay值=2000/＆GT;
  ＆LT;属性名=useExponentialBackOffVALUE =真/＆GT;
＆LT; /豆＆GT;＆LT; /豆＆GT;
 

解决方案

的的DateFormats 和 JSON 元素是骆驼的一部分命名空间。你需要指定

 ＆LT;骆驼：dataFormats＆GT;
    ＆LT;骆驼：JSON ID =杰克库=禅师/＆GT;
＆LT; /骆驼：dataFormats＆GT;
 

I have a simple Hello World example that passes a Map to Camel and displays the values to the console via Log4J. I want to expand this example to render this map in JSON by adding the Jackson library to my Camel applicationContext.xml

First I tried adding the following XML tags to my applicationContext.xml (as specified at http://camel.apache.org/json.html under "Using JSON in Spring DSL")

<camel:dataFormats>
    <camel:json id="jack" library="Jackson"/>
</camel:dataFormats>

But when I add this to my applicationContext.xml, and run my Java code I get the following XmlBeanDefinitionStoreException message:

cvc-complex-type.2.4.a: Invalid content was found starting with element 'dataFormats'.     One of '{"http://camel.apache.org/schema/
 spring":route}' is expected. 

Moving these tags inside or outside of my camelContext yields the same error (just a longer list of URLs when inside the camelContext).

Is there something else I need to specify in my ApplicationContext.xml?

Here is my current applicationContext.xml:

UPDATED: The following xml now works. Had to move the location of the dataFormats XML tags.

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camel="http://camel.apache.org/schema/spring"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<bean
    class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor" />
<context:component-scan base-package="sample" />
<context:annotation-config />

<camel:camelContext id="HelloWorldContext">

<camel:dataFormats>
  <camel:json id="jack" library="Jackson"/>
</camel:dataFormats>

<camel:route>

     <camel:from
          uri="timer://hello.world.request.timer?fixedRate=true&amp;period=10000" />
     <camel:to uri="log:hello.world.request?level=INFO?showAll=true" />
     <camel:bean ref="helloWorld" />
     <camel:to uri="log:hello.world.response?level=INFO?showAll=true" />
</camel:route>

</camel:camelContext>

<bean id="jms" class="org.apache.activemq.camel.component.ActiveMQComponent">
   <property name="configuration" ref="jmsConfig" />
</bean>

<bean id="jmsConfig" class="org.apache.camel.component.jms.JmsConfiguration">
  <property name="connectionFactory" ref="jmsConnectionFactory" />
  <property name="transacted" value="false" />
  <property name="concurrentConsumers" value="1" />
</bean>

<bean id="jmsConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
  <property name="brokerURL" value="vm://localhost" />
  <property name="redeliveryPolicy" ref="redeliveryPolicy" />
  <property name="prefetchPolicy" ref="prefetchPolicy" />
</bean>

<bean id="prefetchPolicy" class="org.apache.activemq.ActiveMQPrefetchPolicy">
  <property name="queuePrefetch" value="5" />
</bean>

<bean id="redeliveryPolicy" class="org.apache.activemq.RedeliveryPolicy">
  <property name="maximumRedeliveries" value="1" />
  <property name="backOffMultiplier" value="2" />
  <property name="initialRedeliveryDelay" value="2000" />
  <property name="useExponentialBackOff" value="true" />
</bean>

</beans>

解决方案

The dateFormats and json elements are part of the camel namespace. You need to specify that

<camel:dataFormats>
    <camel:json id="jack" library="Jackson"/>
</camel:dataFormats>

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