请分析报错:org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userMapper': Error creating bean with name 'userMapper' defined in file [D:\IdeaProjects\demo\target\classes\com\example\demo\mapper\UserMapper.class]: Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required,并给出解决方案
时间: 2023-07-21 16:19:59 浏览: 280
解决SpringDataJPA报错:org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null w
这个报错提示是说,创建UserController这个Bean的时候发现依赖的UserMapper这个Bean创建失败了。具体原因是因为UserMapper依赖的sqlSessionFactory或者sqlSessionTemplate没有注入。
解决方案有两种:
1. 在UserMapper中注入sqlSessionFactory或者sqlSessionTemplate
可以在UserMapper中添加如下代码:
```java
@Autowired
private SqlSessionFactory sqlSessionFactory;
```
或者:
```java
@Autowired
private SqlSessionTemplate sqlSessionTemplate;
```
这样就能够在创建UserMapper时自动注入sqlSessionFactory或者sqlSessionTemplate了。
2. 在配置文件中显式配置UserMapper的依赖
可以在application.properties中显式配置UserMapper的依赖,如下所示:
```properties
mybatis.mapper-locations=classpath:mapper/*.xml
mybatis.type-aliases-package=com.example.demo.bean
# 显式配置UserMapper的依赖
mybatis.config=classpath:mybatis-config.xml
```
在mybatis-config.xml中添加如下代码:
```xml
<configuration>
<mappers>
<mapper class="com.example.demo.mapper.UserMapper" />
</mappers>
</configuration>
```
这样就能够在创建UserMapper时自动注入sqlSessionFactory或者sqlSessionTemplate了。
希望这些解决方案对你有所帮助!
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