sqlMapConfig constraints

<?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>


<environments default="mysql">
<environment id="mysql">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql:///ssm"/>
<property name="username" value="root"/>
<property name="password "value =" the root "/> 
<-! <Mapper
<by mappers>
<-! using annotation ->
</ Environments>
</ Environment>
</ the dataSource>class = "cn.itcast.dao.AccountDao" /> -> 
<-! dao the packet at all interfaces can be used -> 
< Package name = "cn.itcast.dao" /> 
</ by mappers> 


</ configuration>