Cannot convert value of type [org.apache.shiro.cache.ehcache.EhCacheManager] to required type [org.

旧城等待， 2022-03-15 11:42 159阅读 0赞

在一个springmvc（spring是3.0版本，其对应的thyemleaf也应该是spring3的版本）项目中添加thyemleaf时候，出现这个错误，

Cannot convert value of type [org.apache.shiro.cache.ehcache.EhCacheManager] to required type [org.thymeleaf.cache.ICacheManager] for property 'cacheManager': no matching editors or conversion strategy found

初看这个错误，从字面意思来看，感觉是对于cacheManager这个属性，没法将\[org.apache.shiro.cache.ehcache.EhCacheManager\]转换成\[org.thymeleaf.cache.ICacheManager\] for property 'cacheManager'，

于是查看配置文件，发现cacheManager这个属性只有在配置shrio时候用到了

所以我猜测应该是thyemleaf中有个属性也叫cacheManager，由于在这里注册了bean，所以这个属性先去spring容器里面拿来用了，于是百度，终于找到了这篇文章[https://blog.csdn.net/baokx/article/details/50470908][https_blog.csdn.net_baokx_article_details_50470908]，按照博主给的参考，给出了解决方法1,即直接把cacheManager拿到securityManager内部来，发现项目正常启动

同时又在思考，之所以产生这个错误，是因为了引用了同一个bean，所以如果把bean的id改一下是否可以呢？经过验证确实可以，解决方法2

<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
            <property name="sessionManager" ref="sessionManager"/>
            <property name="authenticator" ref="authenticator"/>
            <property name="cacheManager" ref="cacheManager1"/>
            <property name="realms">
                <array>
                    <ref bean="ticketRealm"/>
                </array>
            </property>
        </bean>
    
        <bean id="cacheManager1" class="org.apache.shiro.cache.ehcache.EhCacheManager">
            <property name="cacheManagerConfigFile" value="classpa

完整错误如下

java.lang.IllegalStateException: Cannot convert value of type [org.apache.shiro.cache.ehcache.EhCacheManager] to required type [org.thymeleaf.cache.ICacheManager] for property 'cacheManager': no matching editors or conversion strategy found
    	org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:241)
    	org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:470)
    	org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:516)
    	org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:510)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1406)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1365)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    	org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    	org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)
    	org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    	org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    	org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:400)
    	org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1164)
    	org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:275)
    	org.springframework.web.servlet.DispatcherServlet.initViewResolvers(DispatcherServlet.java:665)
    	org.springframework.web.servlet.DispatcherServlet.initStrategies(DispatcherServlet.java:445)
    	org.springframework.web.servlet.DispatcherServlet.onRefresh(DispatcherServlet.java:430)
    	org.springframework.web.servlet.FrameworkServlet.onApplicationEvent(FrameworkServlet.java:752)
    	org.springframework.web.servlet.FrameworkServlet$ContextRefreshListener.onApplicationEvent(FrameworkServlet.java:989)
    	org.springframework.web.servlet.FrameworkServlet$ContextRefreshListener.onApplicationEvent(FrameworkServlet.java:1)
    	org.springframework.context.event.GenericApplicationListenerAdapter.onApplicationEvent(GenericApplicationListenerAdapter.java:51)
    	org.springframework.context.event.SourceFilteringListener.onApplicationEventInternal(SourceFilteringListener.java:97)
    	org.springframework.context.event.SourceFilteringListener.onApplicationEvent(SourceFilteringListener.java:68)
    	org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:97)
    	org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:324)
    	org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:929)
    	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:467)
    	org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631)
    	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:588)
    	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:645)
    	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:508)
    	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:449)
    	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133)
    	javax.servlet.GenericServlet.init(GenericServlet.java:158)
    	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
    	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
    	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)
    	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)
    	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
    	org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2527)
    	org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2516)
    	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    	java.lang.Thread.run(Thread.java:748)

[https_blog.csdn.net_baokx_article_details_50470908]: https://blog.csdn.net/baokx/article/details/50470908

Cannot convert value of type [org.apache.shiro.cache.ehcache.EhCacheManager] to required type [org.

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