Mybatis与spring项目中遇到的奇怪的问题：ClassNotFoundException: com.mysql.jdbc.Driver

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Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver '
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1136)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
... 52 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1130)

... 55 more

原因是配置文件是在网上复制来的，带有几个空格，异常信息中其实也提示出来了annot load JDBC driver class 'com.mysql.jdbc.Driver '，注意看单引号前面是有空格的，修改配置文件即可

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