SpringMVC 读取配置文件

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:config.properties</value>
</list>
</property>
</bean>

private static Properties props = new Properties();
static {
try {

props.load(new ClassPathResource("config.properties").getInputStream());

} catch (FileNotFoundException e) {
e.printStackTrace();
System.exit(-1);
} catch (IOException e) {
System.exit(-1);
}
}

public static String getKeyValue(String key) {
return props.getProperty(key);
}

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:config.properties</value>
</list>
</property>
</bean>

@Value("#{propertyConfigurer['jdbc.jdbcUrl']}")
private String jdbcUrl;