Java 与Activiti集成时，ConversionNotSupportedException

我正在尝试为我的项目与activiti引擎集成。我的父母pom使用spring 3.1.1

以下是我的pom.xml中的activiti配置：

<dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-engine</artifactId>
            <version>5.16.3</version>
            <exclusions>
            <exclusion>
                <artifactId>spring-beans</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>

        </exclusions>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring</artifactId>
            <version>5.16.3</version>
            <exclusions>
            <exclusion>
                <artifactId>spring-context</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-jdbc</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-orm</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-core</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-test</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-tx</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <version>1.2.132</version>
        </dependency>

但我遇到了以下问题

Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert property      value of type 'org.activiti.engine.impl.RuntimeServiceImpl' to required type 'org.activiti.engine.RuntimeService' for property 'runtimeService'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [org.activiti.engine.impl.RuntimeServiceImpl] to required type [org.activiti.engine.RuntimeService] for property 'runtimeService': no matching editors or conversion strategy found
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:485) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:516) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:510) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1406) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1365) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    ... 19 more
Caused by: java.lang.IllegalStateException: Cannot convert value of type [org.activiti.engine.impl.RuntimeServiceImpl] to required type [org.activiti.engine.RuntimeService] for property 'runtimeService': no matching editors or conversion strategy found
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:241) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:470) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    ... 25 more

有人见过类似的问题吗

无法将[org.activiti.engine.impl.RuntimeServiceImpl]类型的值转换为所需类型[org.activiti.engine.RuntimeService]

这意味着要么（a）您有不兼容的必需接口和提供的实现，要么（b）您有一些类加载器问题，其中必需的接口在不同的类加载器中加载了两次

---

还可以查看stacktrace中的最后一个异常-您对该异常的最初想法是什么？哪一行导致异常？看起来是注入bean导致了问题。我看到getRuntimeService正在返回RuntimeServiceImpl的对象。虽然从理论上讲，它不应该产生问题，因为RuntimeServiceImpl实现RuntimeServiceI不知道这是否有任何用处，但它似乎类似于-也许你可以从那里得到一些线索。我尝试了stackoverflow.com/q/25205324，但它不起作用，因为Activiti不允许自动连接字段，另外，另一个解决方法是使用aop:config，它给出了上面所述的确切错误（a）我不确定不兼容的必需接口是什么意思。这是代码和密码。还有对于（b）有没有一种调试方法？（a）当加载api和运行时的不兼容版本时，通常会发生这种情况，例如slf4j-api-1.4.2.jar（而不是1.7.6）+logback-classic-1.0.12.jar。检查IDE中实际配置的类路径。（b） 在您喜爱的IDE中设置断点？或者我误解了你的问题？是的，Springbeans在运行时被移植也是3.1.1。

   public class PricingServImpl implements PricingServ {

    private static Logger mLogger = Logger.getInstance(PricingServImpl.class);

    private RuntimeService runtimeService;

    public void setRuntimeService(RuntimeService runtimeService) {
        this.runtimeService = runtimeService;
      }

Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert property      value of type 'org.activiti.engine.impl.RuntimeServiceImpl' to required type 'org.activiti.engine.RuntimeService' for property 'runtimeService'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [org.activiti.engine.impl.RuntimeServiceImpl] to required type [org.activiti.engine.RuntimeService] for property 'runtimeService': no matching editors or conversion strategy found
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:485) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:516) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:510) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1406) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1365) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    ... 19 more
Caused by: java.lang.IllegalStateException: Cannot convert value of type [org.activiti.engine.impl.RuntimeServiceImpl] to required type [org.activiti.engine.RuntimeService] for property 'runtimeService': no matching editors or conversion strategy found
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:241) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:470) [spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
    ... 25 more