Resolving placeholders in Spring MVC 3.2.8

Question

I have an application based on Spring Web model-view-controller (Spring MVC 3.2.8 ) and I want to resolve a placeholder

I have the file application.properties inside the folder /src/main/resources/config/

This is my class:

@Service("jobone")
@PropertySource("classpath:config/application.properties")
public class MyJobOne {

    private static final Logger LOGGER = Logger.getLogger   (MyJobOne.class);

    private File localDirectory = new File("tmpFtpFiles");

    private AbstractInboundFileSynchronizer<?> ftpInboundFileSynchronizer;

    @Autowired
    private SessionFactory myFtpSessionFactory;

    private boolean autoCreateLocalDirectory = true;

    private boolean deleteLocalFiles = true;

    private String fileNamePattern="*.*";


    @Value("${ftpRemoteDirectory}")
    private String remoteDirectory;

    ...
}

But I got this error running the app.

Caused By: java.lang.IllegalArgumentException: Could not resolve placeholder 'ftpRemoteDirectory' in string value "${ftpRemoteDirectory}"

I also tried @PropertySource("classpath:/config/application.properties") with the same result

I also tried to put it in 1 of my configuration classes:

@Configuration
@PropertySource("classpath:/config/application.properties")
public class FtpConfiguration {


    @Autowired
    private SessionFactory myFtpSessionFactory;

    @Bean
    @Scope(value="step")
    public FtpGetRemoteFilesTasklet myFtpGetRemoteFilesTasklet()
    {
        FtpGetRemoteFilesTasklet  ftpTasklet = new FtpGetRemoteFilesTasklet();
        ftpTasklet.setRetryIfNotFound(true);
        ftpTasklet.setDownloadFileAttempts(3);
        ftpTasklet.setRetryIntervalMilliseconds(10000);
        ftpTasklet.setFileNamePattern("README");
        //ftpTasklet.setFileNamePattern("TestFile");
        ftpTasklet.setRemoteDirectory("/");
        ftpTasklet.setLocalDirectory(new File(System.getProperty("java.io.tmpdir")));
        ftpTasklet.setSessionFactory(myFtpSessionFactory);

        return ftpTasklet;
    }

    @Bean   
    public SessionFactory myFtpSessionFactory()
    {
        DefaultFtpSessionFactory ftpSessionFactory = new DefaultFtpSessionFactory();
        ftpSessionFactory.setHost("la.mare.superiora");
        ftpSessionFactory.setClientMode(0);
        ftpSessionFactory.setFileType(0);
        ftpSessionFactory.setPort(1029);
        ftpSessionFactory.setUsername("carbonell");
        ftpSessionFactory.setPassword("nicinc");

        return ftpSessionFactory;
    }
}

Sangam Belose · Answer 1 · 2017-07-11T10:00:41.340

0

Try this.

@PropertySource("classpath:/config/application.properties") in your confiuration class.

edited Jul 11 '17 at 10:00

answered Jul 11 '17 at 09:48

Sangam Belose

4,262
8
26
48

Perry · Answer 2 · 2017-07-11T10:37:06.800

You should add @PropertySource in your configuration class like this

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;

@Configuration
@PropertySource(value = { "classpath:/config/application.properties" })
public class AppConfig {

    /*
     * PropertySourcesPlaceHolderConfigurer Bean only required for @Value("{}") annotations.
     * Remove this bean if you are not using @Value annotations for injecting properties.
     */
    @Bean
    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
        return new PropertySourcesPlaceholderConfigurer();
    }

}

and not in the service class.

Also take note of the PropertySourcesPlaceHolderConfigurer Bean that is required when you want to inject properties using @Value("{}"). You may remove it as stated in comment if you don't wish to inject properties using @Value("{}") but wish to inject properties using the new Environment API.

This should solve your problem. You can learn more from here and here

Resolving placeholders in Spring MVC 3.2.8

2 Answers2