使用Jackson JSON库与骆驼的例外

时间：2021-02-07 07:37:04

I am having trouble using the Jackson JSON library with camel. The exception is:

我在使用带有骆驼的Jackson JSON库时遇到了麻烦。例外是：

FailedToCreateRouteException: Failed to create route... because of Data format 'json-jackson' could not be created. Ensure the data format is valid and the associated Camel component is present on the classpath

Here is the beginning of classpath notice that the Jackson libs are there:

这是类路径通知的开始，杰克逊的libs在那里：

 <<< camel-maven-plugin:2.9.0:run (default-cli) @ portlistener <<<

--- camel-maven-plugin:2.9.0:run (default-cli) @ portlistener ---
Classpath = [file:/C:/Users/andrew.b-ext/Workspace/portlistener/target/classes/, file:/C:/Users/andrew.b-ext/.m2/repository/org/codehaus/jackson/jackson-asl/1.9.13/jackson-core-asl-1.9.13.jar, file:/C:/Users/andrew.b-ext/.m2/repository/org/codehaus/jackson/jackson-mapper-asl/1.9.13/jackson-mapper-asl-1.9.13.jar, file:/C:/Users/andrew.b-ext/.m2/repository/org/codehaus/jackson/jackson-jaxrs/1.9.13/jackson-jaxrs-1.9.13.jar, ...snip...

My pom has Jackson:

我的pom有杰克逊：

 <properties>
    <camel.version>2.12.2</camel.version>
    <cxf.version>2.7.8</cxf.version>
    <activemq.version>5.6.0</activemq.version>
</properties>

<dependencies>
  <dependency>
     <groupId>org.codehaus.jackson</groupId>
     <artifactId>jackson-core-asl</artifactId>
     <version>1.9.13</version>
  </dependency>
  <dependency>
     <groupId>org.codehaus.jackson</groupId>
     <artifactId>jackson-mapper-asl</artifactId>
     <version>1.9.13</version>
  </dependency>
  <dependency>
     <groupId>org.codehaus.jackson</groupId>
     <artifactId>jackson-jaxrs</artifactId>
     <version>1.9.13</version>
  </dependency>

Here is my definition of the Dataformat object:

这是我对Dataformat对象的定义：

<bean id="jsonDataformat" class="org.apache.camel.model.dataformat.JsonDataFormat">
    <property name="unmarshalType" value="java.util.Map" />
    <property name="library" value="Jackson"></property>
</bean>

I tried changing the jsonDataformat declaration to:

我尝试将jsonDataformat声明更改为：

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

When I do that I get a different error:

当我这样做时，我得到一个不同的错误：

Configuration problem: Cannot locate BeanDefinitionParser for element [dataFormats]

Can anyone see what I'm doing wrong?

谁能看到我做错了什么？

Thanks,

谢谢，

Andrew entire pom.xml

安德鲁整个pom.xml

<?xml version="1.0" encoding="UTF-8"?>

http://maven.apache.org/maven-v4_0_0.xsd">

http://maven.apache.org/maven-v4_0_0.xsd“>

<modelVersion>4.0.0</modelVersion>

<!--<parent> <artifactId>core</artifactId> <groupId>com.xxxx.clinical</groupId> 
    <version>3.3.3.3.1</version> </parent> -->
<groupId>com.xxxx.clinical</groupId>
<artifactId>portlistener</artifactId>
<packaging>jar</packaging>
<name>portlistener</name>
<version>0.0.0.0.01</version>

<properties>
    <camel.version>2.12.2</camel.version>
    <cxf.version>2.7.8</cxf.version>
    <activemq.version>5.6.0</activemq.version>
    <jackson.version>1.9.13</jackson.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-core-asl</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-jaxrs</artifactId>
        <version>${jackson.version}</version>
    </dependency>

    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxws</artifactId>
        <version>${cxf.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http</artifactId>
        <version>${cxf.version}</version>
    </dependency>
    <!-- This dependency is needed if you're using the Jetty container -->
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http-jetty</artifactId>
        <version>${cxf.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-all</artifactId>
        <version>${activemq.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-camel</artifactId>
        <version>${activemq.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-pool</artifactId>
        <version>${activemq.version}</version>
    </dependency>
    <!-- Camel -->
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-core</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-spring</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.xbean</groupId>
        <artifactId>xbean-spring</artifactId>
        <version>3.15</version>
    </dependency> 
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-jms</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-hl7</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-netty</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-cxf</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-http</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <!-- hapi -->
    <dependency>
        <groupId>ca.uhn.hapi</groupId>
        <artifactId>hapi-base</artifactId>
        <version>2.1</version>
        <exclusions>
            <exclusion>
                <artifactId>xercesImpl</artifactId>
                <groupId>xerces</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>ca.uhn.hapi</groupId>
        <artifactId>hapi-structures-v25</artifactId>
        <version>2.1</version>
    </dependency>


    <!-- logging -->
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.6.1</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.6.1</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.16</version>
    </dependency>
</dependencies>

<build>
    <defaultGoal>install</defaultGoal>

    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>

        <!-- allows the route to be ran via 'mvn camel:run' -->
        <plugin>
            <groupId>org.apache.camel</groupId>
            <artifactId>camel-maven-plugin</artifactId>
            <version>2.9.0</version>
        </plugin>
    </plugins>
</build>
</project>

1 个解决方案

#1

12  

You are missing the camel-jackson dependency:

你错过了camel-jackson依赖：

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-jackson</artifactId>
    <version>${camel-version}</version>
</dependency>

This pulls in jackson-core-asl and jackson-mapper-asl, but unfortunately not jackson-jaxrs. For the latter you still need an explicit dependency in a compatible version.

这会引入jackson-core-asl和jackson-mapper-asl，但不幸的是杰克森 - 贾克斯。对于后者，您仍然需要在兼容版本中显式依赖。

#1

12  

You are missing the camel-jackson dependency:

你错过了camel-jackson依赖：

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-jackson</artifactId>
    <version>${camel-version}</version>
</dependency>

This pulls in jackson-core-asl and jackson-mapper-asl, but unfortunately not jackson-jaxrs. For the latter you still need an explicit dependency in a compatible version.

这会引入jackson-core-asl和jackson-mapper-asl，但不幸的是杰克森 - 贾克斯。对于后者，您仍然需要在兼容版本中显式依赖。

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