上篇文章中關於.propertis檔案的每條記錄在xml檔案裡面配置,如下圖

新方法: 專案啟動時候自動掃描.propertis裡面的每條內容到map中.

配置檔案:

<bean id="myPropertyConfigurer" class="com.ass.base.prop.MyPropertyConfigurer">
		<property name="ignoreUnresolvablePlaceholders" value="true" />
		<property name="locations">
			<list>
				<value>/WEB-INF/config/config.properties</value>
				<value>/WEB-INF/config/system.properties</value>
				<value>/WEB-INF/config/approval.properties</value>
			</list>
		</property>
	</bean>
 

類:

package com.ass.base.prop;

import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;

public class MyPropertyConfigurer extends PropertyPlaceholderConfigurer {

	private Map<String, String> myPropertiesMap;

	@Override
	protected void processProperties(ConfigurableListableBeanFactory factory, Properties props) throws BeansException {
		super.processProperties(factory, props);
		
		myPropertiesMap = new HashMap<String, String>();
		for (Object key : props.keySet()) {
			String keyStr = key.toString();
			String value = props.getProperty(keyStr);
			myPropertiesMap.put(keyStr, value);
		}
	}

	public String getVal(String name) {
		return myPropertiesMap.get(name);
	}

}
 

使用方式:

	@Resource
	private MyPropertyConfigurer myPropertyConfigurer;
	
	/**
	 * 獲取properties檔案值的方法，通過key獲取value
	 * @param key
	 * @return
	 * @author wangt 2014年12月5日 上午9:11:39 
	 */
	public String getProp(String key) {
		return myPropertyConfigurer.getVal(key);
	}