java.sql.sql异常：用户“asus”@“localhost”的访问被拒绝（使用密码：YES）

java.sql.SQLException: Access denied for user 'asus'@'localhost' (using password: YES)

在整合ssm框架是出现错误java.sql.SQLException: Access denied for user 'asus'@'localhost' (using password: YES)，经反复百度以及修改后，我的错误解决了，如下：

原本的数据库配置文件：

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/ssmbuilder?useSSL=true&useUnicode=true&characterEncoding=utf8
username=root
password=123456

spring连接数据库代码

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${driver}"/>
        <property name="jdbcUrl" value="${url}"/>
        <property name="user" value="${username}"/>
        <property name="password" value="${password}"/>
</bean>

经反复尝试后，将username该为user解决，我也不知道为啥

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/ssmbuilder?useSSL=true&useUnicode=true&characterEncoding=utf8
user=root
password=123456

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${driver}"/>
        <property name="jdbcUrl" value="${url}"/>
        <property name="user" value="${user}"/>
        <property name="password" value="${password}"/>
</bean>