如何获取Spring框架中属性文件中定义的所有键

Question

I need to get all the keys in a property file and store it into a bean variable. For example I need something like below

abc=df
sad=tyh

Then I need to get {abc,sad} . All this thing I need to do using spring framework .Is this can be possible (I know probability of getting this type requirement is very less but just need to know is it possible)

Answer 1

you can try try like define bean in applicationContext like

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

and declare like

@Resource(name = "applicationProperties")
    private Properties properties;

and getProperty like

String str = properties.getproperty('keyname');
Enumeration allkeys = properties.propertyNames();