显示这个日志是没有问题的。可以运行，我还以为是错误，然后疯狂百度，不知道他们为什么说这个也是错误。。。。
还有解决办法
DEBUG [main] - Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.
DEBUG [main] - Class not found: org.jboss.vfs.VFS
DEBUG [main] - JBoss 6 VFS API is not available in this environment.
DEBUG [main] - Class not found: org.jboss.vfs.VirtualFile
DEBUG [main] - VFS implementation org.apache.ibatis.io.JBoss6VFS is not valid in this environment.
DEBUG [main] - Using VFS adapter org.apache.ibatis.io.DefaultVFS
DEBUG [main] - Find JAR URL: file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po
DEBUG [main] - Not a JAR: file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po
DEBUG [main] - Reader entry: UserInfo.class
DEBUG [main] - Reader entry: userInfoMapper.xml
DEBUG [main] - Listing file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po
DEBUG [main] - Find JAR URL: file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po/UserInfo.class
DEBUG [main] - Not a JAR: file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po/UserInfo.class
DEBUG [main] - Reader entry: ����DEBUG [main] - Find JAR URL: file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po/userInfoMapper.xml
DEBUG [main] - Not a JAR: file:/D:/JavaWeb/mybatis-1/bin/com/mybatis/po/userInfoMapper.xml
DEBUG [main] - Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
DEBUG [main] - Checking to see if class com.mybatis.po.UserInfo matches criteria [is assignable to Object]
DEBUG [main] - PooledDataSource forcefully closed/removed all connections.
DEBUG [main] - PooledDataSource forcefully closed/removed all connections.
DEBUG [main] - PooledDataSource forcefully closed/removed all connections.
DEBUG [main] - PooledDataSource forcefully closed/removed all connections.
org.apache.ibatis.session.defaults.DefaultSqlSession@71b1176b
