读取配置文件properties的方法

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1. XML中读取配置文件

<!-- 数据库配置文件读取 --><bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">      <property name="locations">    <list>    <value>classpath:com/cmcc/sleepgw/Config/database.properties</value>    </list>    </property>  </bean> <!-- 数据库驱动的配置 --><!-- org.springframework.jdbc.datasource.DriverManagerDataSource --><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"><property name="driverClassName"><value>${jdbc.driverClassName}</value></property><property name="username"><value>${jdbc.username}</value></property><property name="password"><value>${jdbc.password}</value></property><property name="url"><value>${jdbc.url}</value></property></bean>

2. java中读取

import java.io.InputStream;import java.util.Properties;import org.springframework.core.io.ClassPathResource;public class PropertiesReader {private static Properties prop = new Properties();static{try {InputStream SystemIn = new ClassPathResource("com/cmcc/sleepgw/Config/SysConf.properties").getInputStream();InputStream SystemIn2 = new ClassPathResource("com/cmcc/sleepgw/Config/database.properties").getInputStream();prop.load(SystemIn);prop.load(SystemIn2);} catch (Exception e) {e.printStackTrace();}}public static String getProp(String name){if(prop!=null){return (String) prop.get(name);}return null;}public static void main(String[] args){System.out.println(PropertiesReader.getProp("sleepDataRoot"));System.out.println(PropertiesReader.getProp("jdbc.username"));}}

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