【A component required a bean named xxx that could not be found. Action: Consider defining】的更多相关文章

A component required a bean named xxx that could not be found. Action: Consider defining

0 环境 系统:win10 1 正文 https://stackoverflow.com/questions/44474367/field-in-com-xxx-required-a-bean-of-type-that-could-not-be-found 没有解决我的问题 搜了其他人的解释 说是包错误什么的 我看了一下 包没有问题 那就是bean错误 debug了一下 发现我直接copy的类名(类如User) 开头小写即可(user)…

解决BeanNotOfRequiredTypeException: Bean named 'XXX' must be of type XXX, but was actually of type XXX问题

Java新手,困扰了一下午. 发布时总是报这样一个错误. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'XXX': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanNotOfRequiredTypeException…

Sping Cloud项目启动报A component required a bean of type 'com.tianyan.bbc.dao.SecurityUserBaseMapper' that could not be found.

项目构建正常,启动和Debug报以下错误: Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.2018-12-14 09:49:32.038 [main] ERROR o.s.b.diagnostics.LoggingFailureAnalysisReporter - ***************************…

STS中不同包但相同类名引起的问题：A component required a bean of type 'javax.activation.DataSource' that could not be found

1. 问题输出: APPLICATION FAILED TO START*************************** Description: A component required a bean of type 'javax.activation.DataSource' that could not be found. Action: Consider defining a bean of type 'javax.activation.DataSource' in your con…

Java报错: A component required a bean of type 'com.sirifeng.testmybatis.mapper.BookMapper' that could not be found.

在学习Spring-boot-mybatis时,报错A component required a bean of type 'com.sirifeng.testmybatis.mapper.BookMapper' that could not be found. 后来发现是在启动器上没有添加注解 @MapperScan("com.sirifeng.testmybatis.mapper")如有这个错误的可以看一下是不是因为这个原因.…

SpringBoot 启动的时候提示 Field *** in *** required a bean named 'entityManagerFactory' that could not be found.

错误截图 后面发现原来和入口类代码有关. //@SpringBootApplication(scanBasePackages = {"org.jzc.odata.cboard","org.jzc.odata.cboard.odataservice","com.sdl.odata.api.service","com.sdl.odata.api.service.ODataService"}) @EnableAutoConfigur…

Bean named 'XXX' is expected to be of type [XXX] but was actually of type [com.sun.proxy.$Proxy7

AOP原理 <aop:aspectj-autoproxy />声明自动为spring容器中那些配置@aspectJ切面的bean创建代理,织入切面. <aop:aspectj-autoproxy />的proxy-target-class属性,默认为false,表示使用jdk动态代理织入增强.当配为<aop:aspectj-autoproxy  poxy-target-class="true"/>时,表示使用CGLib动态代理技术织入增强.如果pro…

SpringBoot中service注入失败(A component required a bean of type 'XXService' that could not found)

先写了JUnit,发现启动不了,注释掉有问题的service也不可以.可能是因为spring开始时会加载所有service吧. 按照网友们的说法,一般需要检查: 1.入口类有没有写MapperScan 我写了,没问题:) @MapperScan(basePackages="com.example.demo.mapper") 2.该service对应的dao接口上没写@Mapper 我写了,没问题:) 3.@Service里的字符串与该service名称不一致 由于我这个service是…

SpringBoot扫描不到类，注入失败A component required a bean of type 'XXService' that could...

SpringBoot项目的Bean装配默认规则是根据Application类所在的包位置从上往下扫描! “Application类”是指SpringBoot项目入口类.这个类的位置很关键: 如果Application类所在的包为:com.boot.app,则只会扫描com.boot.app包及其所有子包,如果service或dao所在包不在com.boot.app及其子包下,则不会被扫描! 即, 把Application类放到dao.service所在包的上级,com.boot.Applicat…

Consider defining a bean named 'entityManagerFactory' in your configuration解决办法

错误信息: *************************** APPLICATION FAILED TO START *************************** Description: Field usuarioDao in es.uc3m.tiw.Controladores.Controlador required a bean named 'entityManagerFactory' that could not be found. Action: Consider de…