报错：There is no getter for property named 'customer' in 'class cn.huanhuanjun.estore.bean.Customer

eclipse报错There is no getter for property named 'customer' in 'class cn.huanhuanjun.estore.bean.Customer'
org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'customer' in 'class cn.huanhuanjun.estore.bean.Customer'
### Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'customer' in 'class cn.huanhuanjun.estore.bean.Customer'
	org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
	org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:172)
	org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:55)
	org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)
	com.sun.proxy.$Proxy8.updateCustomer(Unknown Source)
	cn.huanhuanjun.estore.service.ICustomerServiceImpl.updateCustomer(ICustomerServiceImpl.java:39)
	cn.huanhuanjun.estore.web.servlet.UpdateCustomerInfoServlet.doGet(UpdateCustomerInfoServlet.java:44)
	cn.huanhuanjun.estore.web.servlet.UpdateCustomerInfoServlet.doPost(UpdateCustomerInfoServlet.java:54)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

查了一下

　　网友博客http://blog.csdn.net/xu_xuan/article/details/43562167上解释的原因是DAO方法中定义的参数与实体中定义的属性不一致导致的。

　　　　解决方案：

　　　　　　　　dao层加@Param("userId")注解即可

　　　　　　　　public List<DictItem> selectKeyByUserId(@Param("xxx") long xxx);

我检查了一下我自己的代码，发现我的错误是SQL语句中将#{xxx}写成了${xxx},希望以后不要再犯这种错误了