如果是手寫驅動類、URL、用戶名這些，不用${}取jdbc.properties文件里的值的話，就可以，怎么回事啊<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"? ? ?xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"? ? ?xmlns:context="http://www.springframework.org/schema/context"? ? ?xmlns:aop="http://www.springframework.org/schema/aop"? ? ?xmlns:tx="http://www.springframework.org/schema/tx"? ? ?xsi:schemaLocation="http://www.springframework.org/schema/beans? ? ?http://www.springframework.org/schema/beans/spring-beans.xsd? ? ?http://www.springframework.org/schema/context? ? ?http://www.springframework.org/schema/context/spring-context.xsd? ? ?http://www.springframework.org/schema/aop? ? ?http://www.springframework.org/schema/aop/spring-aop.xsd? ? ?http://www.springframework.org/schema/tx? ? ?http://www.springframework.org/schema/tx/spring-tx.xsd">? ? ?? ? ?<context:property-placeholder location="classpath:jdbc.properties"/>? ? ?? ? ?<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">? ? ? <property name="driverClass" value="${driver}"/>? ? ? ? <property name="jdbcUrl" value="${url}"/>? ? ? ? <property name="user" value="${username}"/>? ? ? ? <property name="password" value="${password}"/>? ? ?</bean>