質問編集履歴
2
エラー文をできる限る記載しました
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Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
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org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'signupController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springfr
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2021-09-13 17:23:26.318 ERROR 932 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
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org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'signupController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [/Applications/Eclipse_2019-12.app/Contents/workspace/SpringBootSample/target/classes/com/example/demo/repository/UserMapper.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 [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.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 [/Applications/Eclipse_2019-12.app/Contents/workspace/SpringBootSample/target/classes/mapper/h2/UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 21; 疑似属性名が必要です。
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```
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signupControllerとそれを使うクラスのソースコード画像を追加添付しました。クラスの冒頭を小文字にしても解決しませんでした。springのバージョンは2.5.4でした。
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現在、「spring解体新書（第２版）」を参考にspringBoot
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現在、「spring解体新書（第２版）」を参考にspringBoot2.5.4を使用してwebアプリ開発を行なっています。
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手順通りに行なっていたのですがorg.springframework.beans.factory.UnsatisfiedDependencyExceptionというエラーが発生し、先に進めなくなってしまいました。いろいろ調べてみましたが解決方法がわかりません。
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org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'signupController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException:
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org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'signupController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException:
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```
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</mapper>
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```
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