java - 无法在我的 Spring Web 应用程序中注入(inject) Activiti 框架服务

Question

我正在尝试使用 Activiti 和 Spring MVC 框架在我的 Web 应用程序中创建工作流程，因此我必须通过 applicationContext.xml 文件注入(inject) Activiti 服务，然后 Autowiring 这些服务。

这是 JUnit 测试后控制台中的问题

GRAVE: Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@14c8743] to prepare test instance [tds_erp.testSpring@144719c] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tds_erp.testSpring': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: org.activiti.engine.RepositoryService tds_erp.testSpring.repositoryService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.activiti.engine.RepositoryService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: org.activiti.engine.RepositoryService tds_erp.testSpring.repositoryService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.activiti.engine.RepositoryService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.activiti.engine.RepositoryService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

applicatioContext.xml

<?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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
        ">


    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
        <property name="targetDataSource">
            <bean class="org.springframework.jdbc.datasource.SimpleDriverDataSource">
                <property name="driverClassName" value="com.mysql.jdbc.Driver" />
                <property name="url" value="jdbc:mysql://localhost:3306/activiti" />
                <property name="username" value="root" />
                <property name="password" value="admin" />
            </bean>
        </property>
    </bean>
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
        <property name="databaseType" value="h2" />
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManager" />
        <property name="databaseSchemaUpdate" value="true" />
        <property name="deploymentResources"
            value="classpath*:chapter4/bookorder.spring.bpmn20.xml" />
        <property name="jobExecutorActivate" value="false" />
    </bean>
    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
        <property name="processEngineConfiguration" ref="processEngineConfiguration" />
    </bean>
    <bean id="repositoryService" factory-bean="processEngine"
        factory-method="getRepositoryService" />
    <bean id="runtimeService" factory-bean="processEngine"
        factory-method="getRuntimeService" />
    <bean id="taskService" factory-bean="processEngine"
        factory-method="getTaskService" />
    <bean id="historyService" factory-bean="processEngine"
        factory-method="getHistoryService" />
    <bean id="managementService" factory-bean="processEngine"
        factory-method="getManagementService" />
</beans>

JUnit 测试文件:

import static org.junit.Assert.assertEquals;

import java.util.HashMap;
import java.util.Map;

import org.activiti.bpmn.model.Task;
import org.activiti.engine.FormService;
import org.activiti.engine.HistoryService;
import org.activiti.engine.IdentityService;
import org.activiti.engine.ManagementService;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.spring.ProcessEngineFactoryBean;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath*:applicatioContext.xml")

public class testSpring {

    @Autowired(required=true)
     RepositoryService repositoryService;
    @Autowired(required=true)
     RuntimeService runtimeService;
    @Autowired(required=true)
     TaskService taskService;


    @Test
    public void simpleSpringTest() {

    Map<String, Object> variableMap =
    new HashMap<String, Object>();
    variableMap.put("object", "Activiti in Action");
    variableMap.put("description", "123456");
    runtimeService.startProcessInstanceByKey(
    "employeeRequest", variableMap);

    Task task = (Task) taskService
    .createTaskQuery().taskAssignee("kermit")
    .singleResult();
    assertEquals("Complete order", task.getName());
    taskService.complete(task.getId());
    assertEquals(0, runtimeService.
    createProcessInstanceQuery().count());
    }
    }

请帮帮我!

Answer 1

看起来您想使用applicatioContext.xml中定义的bean喜欢 repositoryService等等在你的测试用例中。但您在 the @ContextConfiguration 中声明的所有内容是activiti的默认配置文件activiti.cfg.xml 您可以在测试中尝试以下操作吗:

@ContextConfiguration("classpath:applicatioContext.xml")

只是一个建议:创建一个单独的 applicatioContext.xml 可能是个好主意用于类似于 webapplicationContext 中的测试上下文。这将有助于保留不同的数据等，您可以比正常开发数据库实例更好地管理数据的前/后条件。您甚至可能想要为测试本身生成一个数据库实例并在测试后拆除。

编辑: 您可以提供多个conf文件，如下所示 - @ContextConfiguration(locations = { "classpath:applicatioContext.xml" , "classpath*:activiti.cfg.xml"}) 。检查这个post .

一般定义“<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">”应该加载activiti.cfg.xml在内部，除非您更改了其默认位置。