I have a VM parameter -Dapp.conf=/path/to/config.properties
and i have a appContext.xml for my Spring 4.2.5 application. This config.properties
contains propertis like database.username=username
in the XML config i have this bean <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value= "${database.driver}"/> <property name="url" value="${database.url}"/> <property name="username" value="${database.username}"/> <property name="password" value="${database.password}"/> </bean>
i'm trying to read my config files using this:
`<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >
<property name="location" value="file:///#{systemEnvironment['app.conf']}"/>
</bean>`
But my inserted parameters value= "${database.driver}
not reading from file.
How i may insert my parameters from my properties file to a my DataSource?
in this case its just inserts ${database.driver}
and i have exception, that parameter is invalid.
in Spring BOOT i've made this and its worked:
Properties properties = new Properties();
try (Reader reader =
new FileReader(
System.getProperty("app.conf")
//this contains path:"D://config.properties"
)) {
properties.load(reader);
} catch (IOException e) {
System.out.println(e.getMessage());
}
for (String propertyName: properties.stringPropertyNames()) {
System.setProperty(propertyName, properties.getProperty(propertyName));
}
this code loads my properties as VM parameters, and i can access them with Spring annotation @Value("#{property.name}")
I don't know why, but System.setProperties(properties);
not worked.
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