Question

我想使用Spring Integration 4.0.0M3的MQTT支持，直到现在，我已经配置了应用程序上下文并定义了一些集成。它在我的IDE中都是绿色的，所有必需的依赖项都在这里。如果我现在尝试启动我的应用程序，则在启动期间会出现以下异常：

/mqtt-application-context.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 24; columnNumber: 67; cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'int-mqtt:message-driven-channel-adapter'.
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:266)
... 62 more
Caused by: org.xml.sax.SAXParseException; lineNumber: 24; columnNumber: 67; cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'int-mqtt:message-driven-channel-adapter'.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437)

我的spring-integration相关上下文配置：

<?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:int="http://www.springframework.org/schema/integration"
   xmlns:int-mqtt="http://www.springframework.org/schema/integration/mqtt"
   xsi:schemaLocation="http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
    http://www.springframework.org/schema/integration/mqtt http://www.springframework.org/schema/integration/mqtt/spring-integration-mqtt.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    ">
<import resource="customer-propertyPlaceholder-config.xml" />
<bean id="clientFactory"
      class="org.springframework.integration.mqtt.core.DefaultMqttPahoClientFactory">
    <property name="userName" value="${mqtt.username}"/>
    <property name="password" value="${mqtt.password}"/>
</bean>
<int-mqtt:message-driven-channel-adapter id="twoTopicsAdapter"
                                         client-id="${mqtt.clientId}"
                                         url="${mqtt.url}"
                                         topics="bar, baz"
                                         channel="startCase"/>
<int:service-activator id="startCase" input-channel="startCaseAdapter" ref="mqttCaseService" method="startCase" />
<bean id="mqttCaseService" class="foo.bar.mqtt.MqttCaseService" />

我还尝试按类路径指定架构位置：

http://www.springframework.org/schema/integration/mqtt classpath:/org/springframework/integration/mqtt/config/xml/spring-integration-mqtt-4.0.xsd

但是这并没有解决我的问题，即使提到的元素也在类路径的模式中声明：

<xsd:element name="message-driven-channel-adapter">
    <xsd:annotation>
        <xsd:documentation>
            The definition for the Spring Integration MqttAdapter
            Inbound Channel Adapter.
        </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:attributeGroup ref="coreMqttComponentAttributes"/>
        <xsd:attribute name="channel" type="xsd:string">
            <xsd:annotation>
                <xsd:appinfo>
                    <tool:annotation kind="ref">
                        <tool:expected-type type="org.springframework.integration.core.MessageChannel" />
                    </tool:annotation>
                </xsd:appinfo>
            </xsd:annotation>
        </xsd:attribute>
        <xsd:attribute name="topics">
            <xsd:annotation>
                <xsd:documentation>
                    Specifies one or more (comma-delimited) topics on which to listen for messages.
                </xsd:documentation>
            </xsd:annotation>
        </xsd:attribute>
        <xsd:attribute name="send-timeout" type="xsd:string">
            <xsd:annotation>
                <xsd:documentation><![CDATA[
                    Allows you to specify how long this inbound-channel-adapter
                    will wait for the message (containing the retrieved entities)
                    to be sent successfully to the message channel, before throwing
                    an exception.

                    Keep in mind that when sending to a DirectChannel, the
                    invocation will occur in the sender's thread so the failing
                    of the send operation may be caused by other components
                    further downstream. By default the Inbound Channel Adapter
                    will wait indefinitely. The value is specified in milliseconds.
                ]]>
                </xsd:documentation>
            </xsd:annotation>
        </xsd:attribute>
    </xsd:complexType>
</xsd:element>

有没有人暗示我在这里做错了什么？

亲切的问候，迈克尔

Answer 1

好吧，我想我设法避免了这个。 spring-integration-core存在版本冲突。

spring-integration-mqtt配置问题（找不到元素的声明）

1 个答案: