ERROR org.springframework.boot.SpringApplication - Application run failed
来源：11-2 使用mybatis+SpringBoot完成第一个查询demo
赵佳子彧
2022-03-02
真是本节学的的一波三折，出现很多环境依赖问题，给后学者一个建议如果有时间就慢慢琢磨解决一下问题，如果没时间就只看内容和写代码只当过一下知识点。
这个报错应该是SpringBoot自动加载数据造成的，这个问题暂未找到解决办法，那个log4j问题就是需要在pom文件中加引入网上很多解决办法。
2022-03-02 19:19:51.999 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'characterEncodingFilter' to: [/*]
2022-03-02 19:19:51.999 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2022-03-02 19:19:51.999 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'httpPutFormContentFilter' to: [/*]
2022-03-02 19:19:51.999 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'requestContextFilter' to: [/*]
2022-03-02 19:19:52.221 [main] WARN o.s.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'demo': Unsatisfied dependency expressed through field 'template'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlSessionTemplate' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Unsatisfied dependency expressed through method 'sqlSessionTemplate' parameter 0; 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 [/Users/zhaopengkang/Desktop/AutoTest/Chapter11/target/classes/mapper/mysql.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 5; columnNumber: 32; 必须为元素类型 "mapper" 声明属性 "namespace"。
2022-03-02 19:19:52.222 [main] WARN org.springframework.context.annotation.CommonAnnotationBeanPostProcessor - Invocation of destroy method failed on bean with name 'application': java.lang.NullPointerException
2022-03-02 19:19:52.224 [main] INFO org.apache.catalina.core.StandardService - Stopping service [Tomcat]
2022-03-02 19:19:52.239 [main] INFO o.s.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener -
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-03-02 19:19:52.244 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'demo': Unsatisfied dependency expressed through field 'template'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlSessionTemplate' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Unsatisfied dependency expressed through method 'sqlSessionTemplate' parameter 0; 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 [/Users/zhaopengkang/Desktop/AutoTest/Chapter11/target/classes/mapper/mysql.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 5; columnNumber: 32; 必须为元素类型 "mapper" 声明属性 "namespace"。
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:587)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:373)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1344)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234)
at com.course.Application.main(Application.java:17)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlSessionTemplate' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Unsatisfied dependency expressed through method 'sqlSessionTemplate' parameter 0; 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 [/Users/zhaopengkang/Desktop/AutoTest/Chapter11/target/classes/mapper/mysql.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 5; columnNumber: 32; 必须为元素类型 "mapper" 声明属性 "namespace"。
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:729)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:470)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)
... 19 common frames omitted
写回答
1回答
-
大周
2022-03-04
我加一个我现在写的配置吧，咱们首先在pom文件中的dependencies添加这段，目的是排除掉springboot自带的日志：
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> <!-- 这个是排除掉springboot的日志--> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </exclusion> </exclusions> </dependency>
然后再引入日志的依赖：
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.25</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.25</version> </dependency>
然后再创建log4j.properties配置文件，在配置文件中添加如下内容：
log4j.rootLogger=DEBUG,stdout,file log4j.additivity.org.apache=true log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.threshold=INFO log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%-5p %c{1}:%L - %m%n log4j.appender.file=org.apache.log4j.DailyRollingFileAppender log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.DatePattern='.'yyyy-MM-dd-HH-mm log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n log4j.appender.file.Threshold=INFO log4j.appender.file.append=true log4j.appender.file.File=./logs/apehome.log注意最后一行是输出路径，其他的都不用改
在我们使用时，需要在java代码中导入：
import org.slf4j.Logger; import org.slf4j.LoggerFactory;
最后只要new一个log对象即可，代码如下：
final static Logger logger = LoggerFactory.getLogger(AddressController.class);
注意：这里的AddressController.class是日志对象logger所在的类的名字，所以要写成你自己的。
这个时候我们就可以使用logger来进行日志记录了
以上是我目前写代码的最新配置
112022-03-04
相似问题