Accessing Application Properties in Spring-MVC

Question

New to Spring-MVC.

I want to store two properties (uploadFolder=.., downloadFolder=..) in a .properties file and access it in HomeController class (automatically created

Answer 1

There are a few different ways to do it. I do the following. In app context:

Make sure you have the following at the top of your file to include the "util" namespace:

xmlns:util="http://www.springframework.org/schema/util" 
xsi:schemaLocation= "... http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"

I usually put my properties files in src/main/resources. As long as they're on the classpath, you're good. Then, in your controller, you can annotate your field/method with:

@Controller
public class MyController {

    @Value("#{myProps['uploadFolder']}")
    private String uploadFolder

    @Value("#{myProps['downloadFolder']}")
    private String downloadFolder

    @RequestMapping("myPage")
    public String loadPage(ModelMap m) {
        m.addAttribute("uploadFolder", uploadFolder);
        m.addAttribute("downloadFolder", downloadFolder);
        return "myPage";
    }

    public void setUploadFolder(String uploadFolder) {
        this.uploadFolder = uploadFolder;
    }
    public void setDownloadFolder(String downloadFolder) {
        this.downloadFolder = downloadFolder;
    }
}

Then, in your JSP:

Download folder: ${downloadFolder} 

Upload folder: ${uploadFolder}

HTH. Let me know if you have any questions.