启动Mybatis报错如下：
java.lang.RuntimeException: org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map java.lang.Long org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map java.lang.Long at org.apache.ibatis.builder.MapperBuilderAssistant.setStatementParameterMap(MapperBuilderAssistant.java:319) at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:283) at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:107) at org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:698) at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:668) at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:663)经发现，找到出错原因，是Mybatis配置文件语句有问题，原语句为：
<select id="getSysFlodersByComId" parameterMap="java.lang.Long" resultType="com.sjdf.erp.facade.bean.sys.SysFloder"> SELECT * FROM sys_floder WHERE comId=#{comId}; </select>原因：java.lang.Long类型不能用parameterMap修饰，改为parameterType即可，故修改后的正确语句为：
<select id="getSysFlodersByComId" parameterType="java.lang.Long" resultType="com.sjdf.erp.facade.bean.sys.SysFloder"> SELECT * FROM sys_floder WHERE comId=#{comId}; </select>
