学习之spring属性文件注入

package com.my.proper;

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

@Component("configInfo")
public class ConfigInfo {
@Value("${pagesize}")
private String pagesize;

@Value("${aaa}")
private String aaa;

public String getAaa() {
return aaa;
}

public void setAaa(String aaa) {
this.aaa = aaa;
}

public String getPagesize() {
return pagesize;
}

public void setPagesize(String pagesize) {
this.pagesize = pagesize;
}
}

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:util="http://www.springframework.org/schema/util" xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.2.xsd 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.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd"> <context:component-scan base-package="com.my.proper" />
<context:component-scan base-package="com.my.action" />

<!-- spring的属性加载器，加载properties文件中的属性 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:messages.properties</value>
<value>classpath:messages2.properties</value>
</list>
</property>
<property name="fileEncoding" value="utf-8" />
</bean>
</beans>

public void propertyTest() {
ConfigInfo config = (ConfigInfo) cx.getBean("configInfo");
System.out.println(config.getPagesize());
System.out.println(config.getAaa());
}