修复bug：ip-mgmt的demo跑不通。原因：1.语句xml有问题，解析报错没写入缓存。2.连接数据库的xml用的c3p0，报错导致跳过了写新缓存。

ipu-rest-demo/src/main/resources/dev/sql_mgmt_mybatis.xml

	<environments default="ipu_sql_mgmt">
		<environment id="ipu_sql_mgmt">
			<transactionManager type="JDBC" />
			<dataSource type="com.ai.ipu.database.datasource.C3P0DataSourceFactory">
				<property name="driverClass" value="com.mysql.jdbc.Driver" />
			<dataSource type="com.ai.ipu.database.datasource.DruidDataSourceFactory">
				<property name="jdbcUrl" value="jdbc:mysql://121.42.183.206:3307/ipu_sql_mgmt" />
				<property name="user" value="ipu" />
				<property name="username" value="ipu" />
				<property name="password" value="ipumysql" />
			</dataSource>
		</environment>

ipu-rest-demo/src/main/resources/sql/com/ai/ipu/user/user.xml

<?xml version="1.0" encoding="UTF-8"?>
<sqls>
	<sql name="select">
		<![cdata[
		<![CDATA[
		<select id="select" resultType="java.util.Map" useCache="true">
	        select id, name from user 
	        <where>
		</select>
		]]>
	</sql>
<sqls>
</sqls>