Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException

最新推荐文章于 2023-06-18 18:47:37 发布

转载最新推荐文章于 2023-06-18 18:47:37 发布 · 486 阅读

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原文链接：https://my.oschina.net/u/2289161/blog/822082

本文介绍了一个关于 Spring MVC 单元测试中出现 NoSuchBeanDefinitionException 的问题及解决方案。错误出现在尝试注入 controller.UserController 时，由于 applicationContext.xml 中的 context:component-scan 配置不当导致。

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开发框架：Spring4+Mybatis3+Jta（atomikos）

运行单元测试报以下错误：

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'controller.UserController' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

最终排查发现是<context:component-scan/>的原因导致。

项目结构：

applicationContext.xml配置信息：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans 
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.3.xsd" default-autowire="byName">

    <!-- 1.扫描注解-->
    <context:component-scan base-package="controller.*"></context:component-scan>
    <context:component-scan base-package="mapper.*"></context:component-scan>
    <context:component-scan base-package="model.*"></context:component-scan>
    <context:component-scan base-package="service.impl"></context:component-scan>
    <!--2.注解驱动-->
    <mvc:annotation-driven></mvc:annotation-driven>
</beans>

base-package="controller.*"有误，应为base-package="controller"

转载于:https://my.oschina.net/u/2289161/blog/822082