yogawx项目错误记录

来源：互联网发布：淘宝特价清仓编辑：程序博客网时间：2024/06/06 17:13

1、严重: Unable to process Jar entry [org/json/CDL.class] from Jar [jar:file:/D:/tomcat/apache-tomcat-7.0.56-windows-x64/apache-tomcat-7.0.56/webapps/yogawx/WEB-INF/lib/json.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: It is not a Java .class file

at org.apache.tomcat.util.bcel.classfile.ClassParser.readID(ClassParser.java:201)

2、log4j:ERROR Could not find value for key log4j.appender.INFO
log4j:ERROR Could not instantiate appender named "INFO".

3、严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'yogaController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.yoga.dao.UserDao com.yoga.controller.YogaController.userdao; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.apache.commons.dbcp2.BasicDataSource] for bean with name 'dataSource' defined in class path resource [conf/spring.xml]: problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError: org/apache/commons/dbcp2/BasicDataSource : Unsupported major.minor version 51.0 (unable to load class org.apache.commons.dbcp2.BasicDataSource)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)

第三个问题原因：common-dbcp 和common-pool 的版本要配合使用，本来是 common-dbcp2.1 common-pool 2.4，因为JDK版本从1.7降到1.6，只更换 common-dbcp2.1为common-dbcp 1，因此报错，将 common-pool 2.4 降低到版本 1.6就好了

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