Question

spring和mybatis整合出现问题Error creating bean with name 'org.springframework.web.servlet.mvc.

Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.handler.MappedInterceptor#0': Cannot create inner bean '(inner bean)' of type [org.springframework.web.servlet.handler.ConversionServiceExposingInterceptor] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Cannot resolve reference to bean 'conversionService' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'conversionService' is defined

Answer 1

我的也出现这种问题，发现是因为我添加了这个  

拦截器中增加针对静态资源不进行过滤(涉及spring-mvc.xml)

<mvc:resources location="/" mapping="/**/*.js"/>  

<mvc:resources location="/" mapping="/**/*.css"/>  

<mvc:resources location="/assets/" mapping="/assets/**/*"/>  

<mvc:resources location="/images/" mapping="/images/*" cache-period="360000"/>

下面的部分是问题真正原因，删除掉就好了

<mvc:interceptors>

<mvc:interceptor>

<mvc:mapping path="/**/*"/>

<mvc:exclude-mapping path="/**/fonts/*"/>

<mvc:exclude-mapping path="/**/*.css"/>

<mvc:exclude-mapping path="/**/*.js"/>

<mvc:exclude-mapping path="/**/*.png"/>

<mvc:exclude-mapping path="/**/*.gif"/>

<mvc:exclude-mapping path="/**/*.jpg"/>

<mvc:exclude-mapping path="/**/*.jpeg"/>

<mvc:exclude-mapping path="/**/*login*"/>

<mvc:exclude-mapping path="/**/*Login*"/>

<bean class="com.luwei.console.mg.interceptor.VisitInterceptor"></bean>

</mvc:interceptor>

</mvc:interceptors>

Answer 2

Invalid bound statement (not found): cn.itsun.springmvc.service.ItemService.findItemsList

<servlet><servlet-name>springmvc</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param><param-name>contextConfigLocation</param-name>

<param-value>classpath:springmvc.xml</param-value>

</init-param>

</servlet>

<servlet-mapping>

<servlet-name>springmvc</servlet-name>

<url-pattern>*.action</url-pattern>

</servlet-mapping><context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:applicationContext.xml</param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

web层     controller   使用springmvc技术

service层   不变

dao层   mapper   使用mybatis技术

使用mapper的动态代理开发在写接口时遵循4个原则:

1.接口的方法名 == mapper.xml文件中的id

2.接口的类全路径 == mapper.xml文件中的namespace

3.接口的入参类型 == mapper.xml文件中的resultType

4.接口的返回值类型  == mapper.xml文件中的parameterType

sqlMapConfig.xml文件中 

1)自定义别名:

<typeAliases>

<pacakge name="cn.itsun.pojo" />  (批量自定义别名,别名为类名,大小写不敏感)

或者<typeAlias type="cn.itsun.pojo.User" alias="user" /> (单个自定义别名)

<typeAliases/>

2)sqlMapConfig.xml与mapper.xml文件的映射:

<mappers>

<mapper resource="User.xml" />

<mapper class="cn.itsun.mapper.User.xml" /> (指定接口的类路径)

<package name="cn.itsun.mapper" /> (指定包下的所有mapper接口的xml文件)

(第二种 和 第三种需要把mapper.xml和mapper接口放在一起)

<mappers/>

注意:在配置mybatis和springmvc整合时

在applicationContext.xml文件中写扫描语句后,就不用配置与mapper.xml文件的映射了

<!-- Mapper动态代理开发  之  扫描 -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<!-- 指定一个基本包 -->

<property name="basePackage" value="cn.itsun.springmvc.dao"/>

</bean>

Answer 3

缺少aspectj-1.6.10.jar和aspectjweaver-1.6.9 吧

Answer 4

'(inner bean)':
: Cannot resolve reference to bean 'conversionService'

一个属性，没法初始化 。。。。。。。。。。。。

追问

是因为什么呢？jar包的问题吗