nested exception is java.lang.IllegalStateException: Cannot convert value of type [org.springframewo

:WARN: Failed startup of context org.mortbay.jetty.webapp.WebAppContext@5e8d7d{/mm,WebContent}

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mmdao' defined in file [E:\eclipse\job\mm\build\classes\config\applicationContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException:
Failed to convert property value of type 'org.springframework.jdbc.core.JdbcTemplate' to required type 'org.springframework.jdbc.core.JdbcTemplate' for property 'jTemplate'; nested exception is java.lang.IllegalStateException: Cannot convert value of type
[org.springframework.jdbc.core.JdbcTemplate] to required type [org.springframework.jdbc.core.JdbcTemplate] for property 'jTemplate': no matching editors or conversion strategy found

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)

at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:385)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:284)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)

at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:530)

-------采用jetty服务器测试项目，报bug. 如果不采用jetty，直接url测试项目就不报bug了。这是为啥呢？