SSM框架项目启动报错:找不到实体类;求大神帮忙看看

qq_37193180 2018-07-12 10:31:30
Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-mybatis.xml]: Invocation of init method failed;
nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file[D:\projects\tools\apache-tomcat-8.5.30\webapps\lixin_web\WEB-INF\classes\mapper\jieshaoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML.
Cause: org.apache.ibatis.builder.BuilderException: Error resolving class.
Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'.
Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao

具体如下:
严重: Exception sending context initialized event to listener instance of class [org.springframework.web.context.ContextLoaderListener]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-mybatis.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\projects\tools\apache-tomcat-8.5.30\webapps\lixin_web\WEB-INF\classes\mapper\jieshaoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1702)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:579)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:741)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:409)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4776)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5240)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1421)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1411)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\projects\tools\apache-tomcat-8.5.30\webapps\lixin_web\WEB-INF\classes\mapper\jieshaoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523)
at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1761)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1698)
... 21 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521)
... 24 more
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:118)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:265)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
... 26 more
Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:120)
at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:149)
at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:116)
... 30 more
Caused by: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:200)
at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89)
at org.apache.ibatis.io.Resources.classForName(Resources.java:261)
at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:116)
... 32 more


这是我mybatis与spring的配置文件:
<!-- mybatis工厂; spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 连接池 -->
<property name="dataSource" ref="dataSource" />
<!-- 核心配置文件的位置 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>

<!-- DAO接口所在包名 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 基本包 -->
<property name="basePackage" value="com.lixin.framework.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
这是我springMVC的配置文件:
<!--使Spring支持自动检测组件,如注解的Controller @Service-->
<context:component-scan base-package="com.lixin.*" />
<!-- 当在web.xml 中 DispatcherServlet使用 <url-pattern>/</url-pattern> 映射时,能映射静态资源 对静态资源放行 -->
<mvc:default-servlet-handler />
<!-- 配置处理器映射器 适配器 -->
<mvc:annotation-driven/>
<!-- 视图解析器 -->
<bean id="viewResolverJsp"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
<property name="order" value="1" />
</bean>

看了网上其他的评论,我的service层注解都打上了,@autowired和@service,求大神帮忙解决一下。
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931828653 2018-07-12
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xml 那个方法贴出来 参数类型 或者返回值类型 实体对象
qq_37193180 2018-07-12
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引用 1 楼 hhn925 的回复:
为什么不用SpringBoot呢
,初学变成的菜鸟,我再去了解了解,那是个什么东西
qq_37193180 2018-07-12
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各位大神: com.lixin.framework.beans.JieShao这个类确定是有的,但不知道为什么一直报这个错误
zhouyiminga 2018-07-12
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Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.lixin.framework.beans.JieShao'.
Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
没有这个类
hhn925 2018-07-12
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为什么不用SpringBoot呢
qq_37193180 2018-07-12
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谢谢各位大神,这是我第一次在这发帖,非常感谢各位的回复,确实是我bulidpath的有问题,把失效的删除了以后,就正常了····菜鸟的编程之路靠大家了!
stacksoverflow 2018-07-12
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Cause: java.lang.ClassNotFoundException: Cannot find class: com.lixin.framework.beans.JieShao
把这个类的eclipse截图发上来

------------------------
新开知识星球(ID:7660766),欢迎大家捧场。
Java学习不走弯路-让初学者不走弯路简单快捷的完成Java的学习。
------------------------
奔跑的小鱼儿 2018-07-12
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JAR包的问题,buildpath看看所有包的路径对不对
Zachariahs 2018-07-12
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我曾经在开发中遇到这个错误,原因是项目启动没有关闭,或者是移植过来的项目。不知道符不符合你的情况。
我的解决方式是,把JRE删掉,所有的JAR包去除bulidpath,然后重新build JRE以及JAR包,你可以试一试。

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