使用struts2时碰到这样的错误

HTTP Status 500 - Unable to instantiate Action, customerAction, defined for 'customer_toAddPage' in namespace '/'Error creating bean with name 'customerAction' defined in class path resource [customer.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'userService' of bean class [cn.itcast.action.CustomerAction]: Bean property 'userService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

type Exception report

message Unable to instantiate Action, customerAction, defined for 'customer_toAddPage' in namespace '/'Error creating bean with name 'customerAction' defined in class path resource [customer.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'userService' of bean class [cn.itcast.action.CustomerAction]: Bean property 'userService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

description The server encountered an internal error that prevented it from fulfilling this request.

exception

Unable to instantiate Action, customerAction,  defined for 'customer_toAddPage' in namespace '/'Error creating bean with name 'customerAction' defined in class path resource [customer.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'userService' of bean class [cn.itcast.action.CustomerAction]: Bean property 'userService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter? - action - file:/D:/install/myeclipse2017/workspace/.metadata/.me_tcat85/webapps/ssh_crm02/WEB-INF/classes/struts.xml:14:65

    com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:314)

    com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:395)

    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194)

    org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)

    com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)

    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:554)

    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)

    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)

root cause

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customerAction' defined in class path resource [customer.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'userService' of bean class [cn.itcast.action.CustomerAction]: Bean property 'userService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1518)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1226)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)

    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:325)

    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)

    org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1054)

    com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:161)

    com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:178)

    com.opensymphony.xwork2.factory.DefaultActionFactory.buildAction(DefaultActionFactory.java:22)

    com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:148)

    com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:295)

    com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:395)

    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194)

    org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)

    com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)

    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:554)

    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)

    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)

root cause

org.springframework.beans.NotWritablePropertyException: Invalid property 'userService' of bean class [cn.itcast.action.CustomerAction]: Bean property 'userService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

    org.springframework.beans.BeanWrapperImpl.createNotWritablePropertyException(BeanWrapperImpl.java:231)

    org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:423)

    org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:280)

    org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:95)

    org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1514)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1226)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)

    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)

    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:325)

    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)

    org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1054)

    com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:161)

    com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:178)

    com.opensymphony.xwork2.factory.DefaultActionFactory.buildAction(DefaultActionFactory.java:22)

    com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:148)

    com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:295)

    com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:395)

    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194)

    org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)

    com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)

    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:554)

    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)

    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)

note The full stack trace of the root cause is available in the Apache Tomcat/8.5.9 logs.

原因就是spring的配置文件中的bean写错了，经过了仔细检查发现是property和类中属性不一样的情况。

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