配置c3p0-config.xml数据库连接池报错Type The reference to entity useUnicode must end with the delimiter.

<?  version="1.0" encoding="UTF-8"?>
<!DOCTYPE  >
<c3p0-config>
    <named-config name="mysql">
        <property name="user">test01</property>
        <property name="password">test01</property>
        <property name="driverClass">com.mysql.jdbc.Driver</property>
        <property name="jdbcUrl">jdbc:mysql://10.49.40.127:3306/testdb?&useUnicode=true&characterEncoding=utf8&autoReconnect=true&failOverReadOnly=false&serverTimezone=Asia/Shanghai</property>
        <property name="initialPoolSize">10</property>
        <!--最大空闲时间，30秒内未使用则连接被丢弃。若为0则永不丢弃。默认值: 0 -->
        <property name="maxIdleTime">30</property>
        <property name="maxPoolSize">100</property>
        <property name="minPoolSize">10</property>
    </named-config>
</c3p0-config>

<?  version="1.0" encoding="UTF-8"?>
<!DOCTYPE  >
<c3p0-config>
    <named-config name="mysql">
        <property name="user">test01</property>
        <property name="password">test01</property>
        <property name="driverClass">com.mysql.jdbc.Driver</property>
        <property name="jdbcUrl">jdbc:mysql://10.49.40.127:3306/testdb?&amp;useUnicode=true&amp;characterEncoding=utf8&amp;autoReconnect=true&amp;failOverReadOnly=false&amp;serverTimezone=Asia/Shanghai</property>
        <property name="initialPoolSize">10</property>
        <!--最大空闲时间，30秒内未使用则连接被丢弃。若为0则永不丢弃。默认值: 0 -->
        <property name="maxIdleTime">30</property>
        <property name="maxPoolSize">100</property>
        <property name="minPoolSize">10</property>
    </named-config>
</c3p0-config>