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  • springboot 报错 org.springframework.beans.factory.NoSuchBeanDefinitionException:No qualifying bean of type 'com.example.service.HrService' available: 有没有大佬出个主意,我找了一天,刚入门springboot

    话不多说先上图,这是启动类的配置,这里配置了@ComponentScan("我的mapper的接口")

    接下来是我的项目结构截图

    然后是service 的截图,我在这里加了注解@Service 

     最后我在测试类里面 的截图

     

    最后附上我的maven的pom 我开始怀疑是这个配置的有问题了

    <?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
    <java.version>1.8</java.version>
    </properties>

    <dependencies>
    <dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.16.10</version>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-cache</artifactId>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
    <exclusions>
    <exclusion>
    <groupId>io.lettuce</groupId>
    <artifactId>lettuce-core</artifactId>
    </exclusion>
    </exclusions>
    </dependency>
    <dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    </dependency>
    <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.1</version>
    </dependency>

    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
    <exclusions>
    <exclusion>
    <groupId>org.junit.vintage</groupId>
    <artifactId>junit-vintage-engine</artifactId>
    </exclusion>
    </exclusions>
    </dependency>
    <dependency>
    <groupId>io.projectreactor</groupId>
    <artifactId>reactor-test</artifactId>
    <scope>test</scope>
    </dependency>
    <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <scope>test</scope>
    </dependency>
    </dependencies>

    <build>
    <plugins>
    <plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    </plugin>
    </plugins>
    <resources>
    <resource>
    <directory>src/main/java</directory>
    <includes>
    <include>**/*.xml</include>
    </includes>
    </resource>
    <resource>
    <directory>src/main/resources</directory>
    </resource>
    </resources>
    </build>


    </project>

     详细的报错信息如下:

    Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.service.HrService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1695) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1253) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]

    经过几位大佬的提醒,在启动类新增了@MapperScan("com.example.Mappar"),同时在测试类加入启动类@RunWith(SpringRunner.class) 解决了找不dao bean 的问题,但随后又产生了一个新的报错如下:

     与之对应的我的mapper.xml文件如下:

     我的mapper接口如下:

     最后我的HrService:

     详细报错如下:

    我在网上翻阅了资料:有的解决办法是看pom.xml里面的build 下 resouce 没有添加,我添加了后发现,还是无效。此外在namespace 和对应的service 里面,mapper 方法的名称都是一致,在torget目录下,我的HrMappar.class 和HrService.xml在同一目录下。很疑惑问题出在哪里了。

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  • 原文地址:https://www.cnblogs.com/naotaitao/p/12106213.html
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