使用变量恢复/启动 Activiti 任务的骆驼路线答案

【问题标题】：Camel routes to resume/start Activiti task with variables使用变量恢复/启动 Activiti 任务的骆驼路线
【发布时间】：2017-04-21 15:19:07
【问题描述】：

我已经用activiti和camel设置了spring boot。我正在尝试配置 Camel 路由来轮询电子邮件以执行以下操作。一些同样的例子会很有帮助：

恢复 activti 任务
开始一个活动任务

例如要恢复用户任务，我们需要将以下内容传递给 Acitviti Rest API，它可以正常工作

{"action" : "complete", "variables": [ {"name":"id, "value":1}, {"name":"outcome", "value":true} ]}

我从下面开始设置 Camel Routes，但不确定如何添加需要传递到 activiti 进程的变量：

@Component
public class MyCamelMailRouter extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        from("imaps://imap.server.com?username=myemail@example.com&password=xxxxxx&consumer.delay=60000"
                + "&searchTerm.subject=Approving&searchTerm.unseen=true")
                .to("activiti:activationProcess:approval");
    }
}

这是我的 maven 依赖项

<properties>
    <activiti.version>5.22.0</activiti.version>
    <activiti.rest.version>5.17.0</activiti.rest.version>
</properties>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Camden.SR5</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.camel</groupId>
            <artifactId>camel-spring-boot-dependencies</artifactId>
            <version>2.18.3</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>com.sony.spe.spt</groupId>
        <artifactId>rpm-services-common</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </dependency>

    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-spring-boot-starter-basic</artifactId>
        <version>${activiti.version}</version>
    </dependency>

    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>spring-boot-starter-rest-api</artifactId>
        <version>${activiti.rest.version}</version>
    </dependency>

    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-spring-boot-starter-actuator</artifactId>
        <version>${activiti.version}</version>
    </dependency>

    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-spring-boot-starter-jpa</artifactId>
        <version>${activiti.version}</version>
    </dependency>

    <dependency>
        <groupId>com.oracle.ojdbc</groupId>
        <artifactId>ojdbc6</artifactId>
        <version>11.2.0.1.0</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-config-client</artifactId>
    </dependency>

    <!-- Camel - start -->
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-spring-boot-starter</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-mail-starter</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-stream-starter</artifactId>
    </dependency>
    <!-- Camel - end -->

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

上面在spring boot启动期间抛出了以下异常，通过各种谷歌搜索的一些引用显示我可以使用我使用的符号直接到activiti，但作为错误点，默认情况下它不存在。任何帮助将不胜感激。

org.apache.camel.spring.boot.CamelSpringBootInitializationException: org.apache.camel.FailedToCreateRouteException: Failed to create route route1 at: >>> To[activiti:activationProcess:approval] <<< in route: Route(route1)[[From[imaps://imap.server.com?username=myemail@... because of Failed to resolve endpoint: activiti://activationProcess:approval due to: No component found with scheme: activiti
    at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:124) ~[camel-spring-boot-2.18.3.jar:2.18.3]
    at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:41) ~[camel-spring-boot-2.18.3.jar:2.18.3]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:337) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:882) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.__refresh(AbstractApplicationContext.java:545) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.jrLockAndRefresh(AbstractApplicationContext.java) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at com.workflow.WorkflowApplication.main(WorkflowApplication.java:15) [classes/:na]
Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route route1 at: >>> To[activiti:activationProcess:approval] <<< in route: Route(route1)[[From[imaps://imap.server.com?username=myemail@... because of Failed to resolve endpoint: activiti://activationProcess:approval due to: No component found with scheme: activiti
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1071) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:196) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:984) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3401) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3132) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:183) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2961) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2957) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:2980) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:2957) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:2924) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.spring.boot.RoutesCollector.maybeStart(RoutesCollector.java:141) ~[camel-spring-boot-2.18.3.jar:2.18.3]
    at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:116) ~[camel-spring-boot-2.18.3.jar:2.18.3]
    ... 17 common frames omitted
Caused by: org.apache.camel.ResolveEndpointFailedException: Failed to resolve endpoint: activiti://activationProcess:approval due to: No component found with scheme: activiti
    at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:629) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint(CamelContextHelper.java:79) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.RouteDefinition.resolveEndpoint(RouteDefinition.java:211) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:108) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:114) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.SendDefinition.resolveEndpoint(SendDefinition.java:62) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.SendDefinition.createProcessor(SendDefinition.java:56) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.ProcessorDefinition.makeProcessorImpl(ProcessorDefinition.java:545) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:506) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:222) ~[camel-core-2.18.3.jar:2.18.3]
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1068) ~[camel-core-2.18.3.jar:2.18.3]
    ... 30 common frames omitted

【问题讨论】：

标签： spring-boot apache-camel activiti

【解决方案1】：

需要添加activiti-camel组件的JAR/maven依赖。它不是来自 Apache Camel，而是来自 Activiti 项目，因此请查看依赖项的名称。

您可以从最后一个堆栈跟踪中看到该组件未找到。

【讨论】：

谢谢！！成功了，缺少依赖项，我认为 spring-boot activiti 依赖项会自动包含它，因为我已经在它们中有骆驼依赖项。但是，您对如何传递变量有任何指示吗？
查看活动文档。我不知道这个组件。我主要在 ASF 的 Apache Camel 项目上工作，而不是 activiti