错误日志如下：
2010-1-6 22:02:03 com.ibatis.common.logging.jdk14.Jdk14LoggingImpl error
严重: SimpleDataSource: Error while loading properties. Cause: java.lang.ClassNotFoundException: jdbc.driverClass
java.lang.ClassNotFoundException: jdbc.driverClass
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.ibatis.common.resources.Resources.classForName(Resources.java:265)
at com.ibatis.common.resources.Resources.instantiate(Resources.java:281)
at com.ibatis.common.jdbc.SimpleDataSource.initialize(SimpleDataSource.java:199)
at com.ibatis.common.jdbc.SimpleDataSource.(SimpleDataSource.java:116)
at com.ibatis.sqlmap.engine.datasource.SimpleDataSourceFactory.initialize(SimpleDataSourceFactory.java:31)
at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser$9.process(SqlMapConfigParser.java:347)
at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:121)
at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:105)
at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:102)
at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:102)
at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:72)
at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:51)
at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser.parse(SqlMapConfigParser.java:86)
at com.ibatis.sqlmap.client.SqlMapClientBuilder.buildSqlMapClient(SqlMapClientBuilder.java:63)
at com.itcast.IStudentDAOImpl.(IStudentDAOImpl.java:17)
java.lang.ExceptionInInitializerError
Caused by: java.lang.RuntimeException: Error occurred. Cause: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/transactionManager/dataSource/end()'. Cause: com.ibatis.sqlmap.client.SqlMapException: Error initializing DataSource. Could not instantiate DataSourceFactory. Cause: java.lang.RuntimeException: SimpleDataSource: Error while loading properties. Cause: java.lang.ClassNotFoundException: jdbc.driverClass
at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser.parse(SqlMapConfigParser.java:89)
at com.ibatis.sqlmap.client.SqlMapClientBuilder.buildSqlMapClient(SqlMapClientBuilder.java:63)
at com.itcast.IStudentDAOImpl.(IStudentDAOImpl.java:17)
Caused by: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/transactionManager/dataSource/end()'. Cause: com.ibatis.sqlmap.client.SqlMapException: Error initializing DataSource. Could not instantiate DataSourceFactory. Cause: java.lang.RuntimeException: SimpleDataSource: Error while loading properties. Cause: java.lang.ClassNotFoundException: jdbc.driverClass
at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:53)
at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser.parse(SqlMapConfigParser.java:86)
... 2 more
Caused by: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/transactionManager/dataSource/end()'. Cause: com.ibatis.sqlmap.client.SqlMapException: Error initializing DataSource. Could not instantiate DataSourceFactory. Cause: java.lang.RuntimeException: SimpleDataSource: Error while loading properties. Cause: java.lang.ClassNotFoundException: jdbc.driverClass
at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:123)
at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:105)
at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:102)
at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:102)
at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:72)
at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:51)
... 3 more
Caused by: com.ibatis.sqlmap.client.SqlMapException: Error initializing DataSource. Could not instantiate DataSourceFactory. Cause: java.lang.RuntimeException: SimpleDataSource: Error while loading properties. Cause: java.lang.ClassNotFoundException: jdbc.driverClass
at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser$9.process(SqlMapConfigParser.java:354)
at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:121)
... 8 more
Caused by: java.lang.RuntimeException: SimpleDataSource: Error while loading properties. Cause: java.lang.ClassNotFoundException: jdbc.driverClass
at com.ibatis.common.jdbc.SimpleDataSource.initialize(SimpleDataSource.java:210)
at com.ibatis.common.jdbc.SimpleDataSource.(SimpleDataSource.java:116)
at com.ibatis.sqlmap.engine.datasource.SimpleDataSourceFactory.initialize(SimpleDataSourceFactory.java:31)
at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser$9.process(SqlMapConfigParser.java:347)
... 9 more
Caused by: java.lang.ClassNotFoundException: jdbc.driverClass
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.ibatis.common.resources.Resources.classForName(Resources.java:265)
at com.ibatis.common.resources.Resources.instantiate(Resources.java:281)
at com.ibatis.common.jdbc.SimpleDataSource.initialize(SimpleDataSource.java:199)
... 12 more
Exception in thread "main"
SqlMapConfig.xml文件内容如下：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE sqlMapConfig PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-config-2.dtd">
<sqlMap resource="com/itcast/Student.xml"/>
SqlMap.properties文件内容如下：
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test
username=root
password=123456
如果不使用SqlMap.properties文件，而将driver、url、username、password的值直接写入SqlMapConfig.xml文件中，则程序可以正常通过。
请大家帮忙解决如何读取这个SqlMap.properties配置文件问题。
