The content of element type configuration must match (properties?,setting

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在运行mybatis配置文件的时候，出现错误：

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 Caused by: org.xml.sax.SAXParseException: The content of element type "configuration" must match "(properties?,settings?,typeAliases?,typeHandlers?,objectFactory?,objectWrapperFactory?,plugins?,environments?,databaseIdProvider?,mappers?)".  
     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)  
     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)  
     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)  
     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)  
     at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleEndElement(XMLDTDValidator.java:2017)  
     at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.endElement(XMLDTDValidator.java:901)  
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1774)  
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2930)  
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)  
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)  
     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)  
     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)  
     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)  
     at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:225)  
     at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283)  
     at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:254)  
     ... 21 more  

配置文件如下：

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 <?xml version="1.0" encoding="UTF-8" ?>  
 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"  
 "http://mybatis.org/dtd/mybatis-3-config.dtd">  
 <configuration>  
     <properties resource="dbConfig.properties"></properties>  
     <environments default="development">  
         <environment id="development">  
             <transactionManager type="JDBC" />  
             <dataSource type="POOLED">  
                 <property name="driver" value="${driver}" />  
                 <property name="url" value="${url}" />  
                 <property name="username" value="${dbuser}" />  
                 <property name="password" value="${dbpassword}" />  
             </dataSource>  
         </environment>  
     </environments>  
     <mappers>  
         <mapper resource="com/apps/dao/RemainDao.xml"/>  
         <mapper resource="com/apps/dao/WorkSpaceDao.xml"/>  
     </mappers>  
     <typeAliases>  
         <typeAlias type="com.apps.domain.Remian" alias="Remian"/>  
         <typeAlias type="com.apps.domain.WorkSpace" alias="WorkSpace"/>  
     </typeAliases>  
 </configuration>  

找了老半天，才发现配置文件 configuration 中的元素，不但有类型限制，也有顺序限制。必须按照（

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 match "(properties?,settings?,typeAliases?,typeHandlers?,objectFactory?,objectWrapperFactory?,plugins?,environments?,databaseIdProvider?,mappers?)".  

）进行配置。修改配置文件

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 <?xml version="1.0" encoding="UTF-8" ?>  
 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"  
 "http://mybatis.org/dtd/mybatis-3-config.dtd">  
 <configuration>  
     <properties resource="dbConfig.properties"></properties>  
     <typeAliases>  
         <typeAlias type="com.apps.domain.Remian" alias="Remian"/>  
         <typeAlias type="com.apps.domain.WorkSpace" alias="WorkSpace"/>  
     </typeAliases>  
     <environments default="development">  
         <environment id="development">  
             <transactionManager type="JDBC" />  
             <dataSource type="POOLED">  
                 <property name="driver" value="${driver}" />  
                 <property name="url" value="${url}" />  
                 <property name="username" value="${dbuser}" />  
                 <property name="password" value="${dbpassword}" />  
             </dataSource>  
         </environment>  
     </environments>  
     <mappers>  
         <mapper resource="com/apps/dao/RemainDao.xml"/>  
         <mapper resource="com/apps/dao/WorkSpaceDao.xml"/>  
     </mappers>     
 </configuration>  