Spring_8_使用外部属性文件

来源：互联网发布：用java代码表白编辑：程序博客网时间：2024/05/22 19:12

使用如下命令引用外部的属性文件

<context:property-placeholder location="classpath:database.properties"/>

然后使用${xxxx}的方式引用属性文件中的值

bean-properties.xml

<?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:p="http://www.springframework.org/schema/p"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"><context:property-placeholder location="classpath:database.properties"/><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"><property name="driverClassName" value="${database.driverClassName}" />                 <property name="url" value="${database.url}" />                 <property name="username" value="${database.username}"/>                 <property name="password" value="${database.password}" /></bean></beans>

TestSpring

package com.hgh.spring.scope;import java.sql.SQLException;import javax.sql.DataSource;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestSpring {    public static void main(String[] args) throws SQLException {        ApplicationContext ac = new ClassPathXmlApplicationContext("bean-properties.xml");        DataSource dataSource = (DataSource) ac.getBean("dataSource");        System.out.println(dataSource.getConnection());    }}

0 0