数据源的配置，DataSource

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
  <property name="driverClassName">
    <value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value>
  </property>
  <property name="url">
    <value>jdbc:sqlserver://localhost</value>
  </property>
  <property name="username">
    <value>demo</value>
  </property>
  <property name="password">
    <value>demo</value>
  </property>
  <property name="initialSize">
    <value>5</value>
  </property>
  <property name="maxActive">
    <value>50</value>
  </property>
  <property name="maxIdle">
    <value>20</value>
  </property>
  <property name="minIdle">
    <value>10</value>
  </property>
  <property name="maxWait">
    <value>5000</value>
  </property>
  <property name="validationQuery">
    <value>select getdate()</value>
  </property>
  <property name="timeBetweenEvictionRunsMillis">
    <value>5000</value>
  </property>
  <property name="numTestsPerEvictionRun">
    <value>10</value>
  </property>
  <property name="testOnBorrow">
    <value>true</value>
  </property>
  <property name="testWhileIdle">
    <value>true</value>
  </property>
</bean>

熟悉spring DAO支持写的
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName"
value="com.microsoft.jdbc.sqlserver.SQLServerDriver"/>
<property name="url"
value="jdbc:Microsoft:sqlserver://localhost:1433; DatabaseName=affty"/>
<property name="username" value=""/>
<property name="password" value=""/>
</bean>
为什么会Error creating bean with name 'dataSource' defined in file
是不是username password不能为空的挖？
多谢赐教啦！