Spring 在配置中使用*.properties

<?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:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans   
            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
            http://www.springframework.org/schema/context  
            http://www.springframework.org/schema/context/spring-context-3.0.xsd
            http://www.springframework.org/schema/util 
            http://www.springframework.org/schema/util/spring-util-3.0.xsd">
    <context:annotation-config/>
    <!-- picks up and registers AppConfig as a bean definition -->
    <context:component-scan base-package="com.web.spring.other" />

    <bean class="com.web.spring.other.AppConfig"/>
	访法一
    <context:property-placeholder location="classpath:jdbc.properties" />
</beans>

package com.web.spring.other;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;

@Configuration
public class AppConfig {
    private @Value("${jdbc.driverClassName}") String driverClassName;
    @Bean(initMethod = "init")
    public JDBCBean jdbc(){
        JDBCBean jdbc=new JDBCBean();
        jdbc.setDriverClassName(driverClassName);
        return jdbc;
    }

}

在applaction.xml也可以直接使用:

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="${driverClassName}"/>
		<property name="url" value="${url}" />
		<property name="username" value="${username}"/>
		<property name="password" value="${password}"/>
	</bean>

jdbc.driverClassName=org.hsqldb.jdbcDriver

另一种方法:[color=red]spring 3中新增的@value注解[/color]

[url]http://jackyrong.iteye.com/blog/1330946[/url]

在spring 3.0中，可以通过使用@value，对一些如xxx.properties文件

中的文件，进行键值对的注入，例子如下：

1 首先在applicationContext.xml中加入：

<beans xmlns:util="http://www.springframework.org/schema/util" 

 xsi:schemaLocation="http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd"> 

</beans>

的命名空间，然后

<util:properties id="settings" location="WEB-INF/classes/META-INF/spring/test.properties" />

3 创建test.properties

abc=123 


import org.springframework.beans.factory.annotation.Value; 

import org.springframework.stereotype.Controller; 

import org.springframework.web.bind.annotation.RequestMapping; 


@RequestMapping("/admin/images") 

@Controller 

public class ImageAdminController { 


 private String imageDir; 

 @Value("#{settings['test.abc']}") 

 public void setImageDir(String val) { 

 this.imageDir = val; 

 } 



}

这样就将test.abc的值注入了imageDir中了