I have a spring boot application and I want to read some variable from my application.properties
file. In fact below codes do that. But I think there is a good method for this alternative.
Properties prop = new Properties();
InputStream input = null;
try {
input = new FileInputStream("config.properties");
prop.load(input);
gMapReportUrl = prop.getProperty("gMapReportUrl");
} catch (IOException ex) {
ex.printStackTrace();
} finally {
...
}
You can use @PropertySource
to externalize your configuration to a properties file. There is number of way to do get properties:
1.
Assign the property values to fields by using @Value
with PropertySourcesPlaceholderConfigurer
to resolve ${}
in @Value
:
@Configuration
@PropertySource("file:config.properties")
public class ApplicationConfiguration {
@Value("${gMapReportUrl}")
private String gMapReportUrl;
@Bean
public static PropertySourcesPlaceholderConfigurer propertyConfigInDev() {
return new PropertySourcesPlaceholderConfigurer();
}
}
2.
Get the property values by using Environment
:
@Configuration
@PropertySource("file:config.properties")
public class ApplicationConfiguration {
@Autowired
private Environment env;
public void foo() {
env.getProperty("gMapReportUrl");
}
}
Hope this can help