Spring - Error creating bean with name ‘XX‘: Unsatisfied dependency expressed through field ‘XX‘

￡神魔★判官ぃ 2023-09-23 22:45 48阅读 0赞

在项目中经常会遇到如下错误：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XX': Unsatisfied dependency expressed through field 'XX'
     
    org.springframework.beans.factory.UnsatisfiedDependencyException: 
    Error creating bean with name 'xxxMapper' defined in file [xxxMapper.class]: 
    Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; 
    nested exception is org.springframework.beans.factory.BeanCreationException: 
    Error creating bean with name 'sqlSessionFactoryBean' defined in class path resource [xxxConfig.class]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [xx\mappers\xxMapper.xml]';

报错：不满足依赖异常。创建名为’xx’的bean时出错，通过字段’sqlSessionFactory’表达的不满足的依赖项

### 一、配置与扫描问题： ###

spring配置文件中检查包是否扫描，仔细检查自己的配置文件里和相关的配置路径。

在项目配置文件（xxxConfig.class）中的配置：

private String[]           locations = {"classpath*:com/d1mgroup/wechat/estore/repository/*.xml"};

在application.yml文件中的配置：

![0e748f94190f4a4bb6061fae51864e92.png][]

或者检查一下启动类上的注解配置：

![6a8f76f9853744c18b196cf5f32f15b1.png][]

### 二、注解问题： ###

Controller、service层的注解缺失会造成创建bean时出现错误

@Controller

@Service

### 三、依赖包缺失，检查pom配置文件 ###

检查pom.xml文件下是否缺失依赖或者有多余的依赖，判断是否对bean的正常创建有影响

### 四、xml包中存在空文件： ###

在xxxMapper.xml的包中如果有空的xml文件，就会造成此Bug，这种情况的具体原因暂时不清楚

### 五、复制xml文件；文件名确实存在错误 ###

以上都没解决问题，则直接备份一下mapper或者mapper.xml文件，将其删除，重新创建同名mapper或者mapper.xml文件，然后Maven clean 一下，重新Rebuild project

[0e748f94190f4a4bb6061fae51864e92.png]: https://img-blog.csdnimg.cn/0e748f94190f4a4bb6061fae51864e92.png
[6a8f76f9853744c18b196cf5f32f15b1.png]: https://img-blog.csdnimg.cn/6a8f76f9853744c18b196cf5f32f15b1.png

Spring - Error creating bean with name ‘XX‘: Unsatisfied dependency expressed through field ‘XX‘

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