上一个回答的代码启动报错Error creating bean with name 'advertController' defined in file [E:\IdeaProjects\taihaolian\target\classes\com\ruifan\taihaolian\biz\controller\AdvertController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'advertServiceImpl': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'advertMapper' defined in file [E:\IdeaProjects\taihaolian\target\classes\com\ruifan\taihaolian\biz\mapper\AdvertMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\IdeaProjects\taihaolian\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Could not find value method on SQL annotation. Cause: org.apache.ibatis.builder.BuilderException: Error creating SqlSource for SqlProvider. Method 'selectByRoleAndPage' not found in SqlProvider 'org.apache.ibatis.annotations.SelectProvider'.
时间: 2024-04-06 09:31:43 浏览: 32
这是一个典型的 Spring 框架的错误,可能是由于依赖注入出现问题导致的。具体来说,可能是 advertController 类的构造函数中的参数注入失败,或者 advertServiceImpl 类中的依赖注入失败。而 advertMapper 类中的问题可能是由于找不到 SQL 注解中的 value 方法导致的。你可以检查一下相关的类和配置文件,看看是否有错误或遗漏的地方。
相关问题
Error creating bean with name 'advertController' defined in file [E:\IdeaProjects\taihaolian\target\classes\com\ruifan\taihaolian\biz\controller\AdvertController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'advertServiceImpl': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'advertMapper' defined in file [E:\IdeaProjects\taihaolian\target\classes\com\ruifan\taihaolian\biz\mapper\AdvertMapper.class]: Invocation of init method failed; nested exception is tk.mybatis.mapper.MapperException: class loaders failed to locate the class com.ruifan.taihaolian.biz.mapper.AdvertMapper.AdvertDTOMapper
根据报错信息分析,可能是AdvertController中的构造函数参数依赖未能成功注入。具体而言,AdvertServiceImpl的依赖注入失败,原因是AdvertMapper的初始化方法调用失败,可能是因为找不到AdvertDTOMapper类。
为了解决这个问题,您可以尝试以下几个步骤:
1. 确保AdvertDTOMapper类已经存在,并且位于正确的包路径下,即com.ruifan.taihaolian.biz.mapper.AdvertMapper包下。
2. 确认AdvertMapper.xml文件中的namespace属性值与AdvertMapper.java文件中的package声明一致。例如,namespace="com.ruifan.taihaolian.biz.mapper.AdvertMapper"对应的Java包声明应该是package com.ruifan.taihaolian.biz.mapper.AdvertMapper;。
3. 确认AdvertDTOMapper类已经被正确地引入到AdvertMapper.xml文件中,并且在其中定义了正确的SQL语句。
4. 确认AdvertMapper接口中的方法名、参数类型、返回类型等与AdvertDTOMapper中的SQL语句对应。
如果上述步骤都没有解决问题,建议您检查一下项目的依赖关系是否正确,并且检查一下项目中是否存在其他与AdvertDTOMapper相关的报错信息。另外,如果您使用的是MyBatis框架,也可以尝试在AdvertMapper接口中添加@Mapper注解,以确保该接口被正确地注册到MyBatis框架中。
Error creating bean with name 'userMapper' defined in file [D:\zrproject\project\target\classes\com\tjetc\dao\UserMapper.class]
这个错误一般是由于Spring无法正确创建名为'userMapper'的bean引起的。可能有以下几个原因导致该错误:
1. 缺少依赖:请确保你的项目中已经添加了正确的依赖,包括Spring和MyBatis等框架。
2. 配置错误:检查你的配置文件,确保正确配置了'userMapper'的bean。可能需要使用注解或XML配置文件来声明UserMapper类。
3. 包扫描错误:如果你使用了包扫描来自动装配bean,确保UserMapper类所在的包已被扫描到。
4. 不正确的路径或类名:请检查路径和类名是否正确。确保UserMapper类的位置和名称与配置文件中定义的一致。
如果你提供更多的代码和配置信息,我可以帮你更准确地定位问题所在。