出现org.springframework.beans.factory.NoSuchBeanDefinitionException 的解决思路
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.itcast.crm.service.BaseDictService
cn.itcast.crm.controller.CustomerController.baseDictService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.itcast.crm.service.BaseDictService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customerController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.itcast.crm.service.BaseDictService cn.itcast.crm.controller.CustomerController.baseDictService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.itcast.crm.service.BaseDictService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
解决问题的思路:
1.如果您使用注释进行配置,则可能会缺少cn.itcast.crm.service.BaseDictService实现的注释(@Service或@Component等)。
2.如果您使用(仅)xml,您可能会错过BaseDictService实现的<bean>定义。
3.如果您使用注释并且实现注释正确,请检查扫描实现所在的包
(检查各自组件的自动扫描组件<context:component-scan base-package = “XXXX”)
或者(Spring自动扫描<context:annotation-config/>)
4.代码有无错误:例子如下,
BaseDictMapper在mapper文件下并在相关的mapper.xml进行相关配置,BaseDictService在service文件下并做了相关的spring配置文件做了对应的配置。Service实现具有相同申明方法的mapper接口(而spring并不能扫描到mapper文件夹下的接口和类),因此BeanFactory在Spring Context中没有找到bean的实例,最终导致Spring无法识别相应的bean
public interface BaseDictMapper {
//根据类别代码查询数据
List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode); }
public interface BaseDictService {
//根据类别代码查询
List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode);
}
public class BaseDictServiceImpl implements BaseDictMapper { //错误:应该实现为BaseDictService
@Autowired
private BaseDictMapper baseDictMapper;
@Override
public List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode) {
List<BaseDict> list = this.baseDictMapper.queryBaseDictByDictTypeCode(dictTypeCode);
return list;
}
}
5.是否确实与注入相关便签的依赖。比如dubbo服务下,添加了spring的相关依赖但是服务端并不需要Spring的@Service标签,而是dubbo的@Service标签。检查maven依赖是否正确,修改完毕记得Install,report下
简单代码:
pom.xml
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<!-- dubbo相关 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
</dependency>
...
</dependencies>
service:
import com.alibaba.dubbo.config.annotation.Service;
import com.chunxiansheng.mapper.TbBrandMapper;
import com.chunxiansheng.pojo.TbBrand;
import com.chunxiansheng.service.BrandService;
import org.springframework.beans.factory.annotation.Autowired; import java.util.List; @Service
public class BrandServiceImpl implements BrandService { @Autowired
private TbBrandMapper brandMapper;
...
}
6.检查数据源,JDBC等有没有配置错误。
例如具体查看mapper,dao下的spring配置文件和db.properties的配置。
7.推荐使用SpringBoot,可以减少很多配置的操作,适合开发。
出现org.springframework.beans.factory.NoSuchBeanDefinitionException 的解决思路的更多相关文章
- Spring Boot 调用 MongoRepository时报org.springframework.beans.factory.NoSuchBeanDefinitionException错误的解决办法
这个问题整整折腾了我两天,现在记录下来,希望可以帮助和我一样,遇到相同问题的小伙伴. 项目是分层的(Intellij IDEA中的模块Module),有API(Core)层,Service&D ...
- 解决org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'cacheManager' is defined
在Spring配置文件中加入了支持注解,即<mvc:annotation-driven/> 重新启动服务器包 org.springframework.beans.factory.NoSuc ...
- 解决 org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type的问题
具体错误如下: Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying be ...
- Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException
1.错误描写叙述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -he ...
- org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionManager'
1.错误描述 五月 01, 2015 2:12:31 下午 org.hibernate.validator.util.Version <clinit> 信息: Hibernate Vali ...
- Caused by:org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type "" available: expected at least 1 bean which qualifies as autowire candidate
项目使用spring, mybatis.因为分了多个模块,所以会这个模块引用了其它模块的现在,结果使用Junit测试的时候发现有两个模块不能自动注入dao和service问题.解决后在此记录一下. 解 ...
- org.springframework.beans.factory.NoSuchBeanDefinitionException
1. 问题描述 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'xxxx ...
- org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'ExtractAbstractServiceHandler' is defined
在利用 Spring 集成 thrift 时,报错如下: javax.servlet.ServletException: Servlet.init() for servlet search-nlp-s ...
- org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [dx.service.ItemService] found for dependency
在整合ssm框架,测试service层的时候报错 Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: ...
随机推荐
- to_sql, to_csv, to_excel, to_json
1.to_sql def to_sql(self, name, con, schema=None, if_exists="fail", index=True, index_labe ...
- [C1] Andrew Ng - AI For Everyone
About this Course AI is not only for engineers. If you want your organization to become better at us ...
- Loadrunner|录制脚本时出现乱码的解决方式
1.进入options 2. 保存后,再录制到脚本就不会有乱码了!
- GitHub 上优秀的开源SLAM repo (更新中)
GitHub 上优秀的开源SLAM repo (更新中) 欢迎 watch/star/fork 我们的 GitHub 仓库: Awesome-SLAM, 或者follow 项目的主页:Awesome- ...
- luoguP2852 [USACO06DEC]Milk Patterns
题意 显然如果有一个子串出现过\(k\)次,那么它必定是一个至少长为k的后缀序的\(LCP\),求出所有相邻的长为\(k-1\)的\(height\)数组的最小值,在其中取最大值即可 code: #i ...
- CentOS7 安装 anaconda
Anaconda是一个开源的Python发行版本,可以帮助我们更方便地配置Python环境. 如果只需要某些包,或者需要节省带宽或存储空间,也可以使用Miniconda这个较小的发行版 0. 开始前 ...
- RSA加密与解密
/// <summary> /// RSA 公钥加密 /// </summary> /// <param name="content">要加密的 ...
- vue 路由跳转到本页面,ts 监听路由变化
@Watch('$route') routechange(to: any, from: any) { //参数不相等 if (to.query.name!=from.query.name) { //t ...
- kafka_2.12-2.2.1 集群搭建
一.zookeeper集群搭建 kafka集群依赖于zookeeper的集群,搭建zookeeper集群的步骤参考我之前写过的,Solr集群搭建详细教程(一)中的第二步 二.下载解压 去官网下载htt ...
- maven pom项目的dependencies转gradle格式
1.新建一个文件件 2.创建pom.xm,放到新建的文件夹中 3.在命令行切换到新建文件夹中,执行: gradle init --type pom