src/main/java/info/selflearner/ocr/config/MainWebAppInitializer.java


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package info.selflearner.ocr.config;

import jakarta.servlet.MultipartConfigElement;
import jakarta.servlet.ServletContext;
import jakarta.servlet.ServletRegistration;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.GenericWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

public class MainWebAppInitializer implements WebApplicationInitializer {

    private static final String TMP_FOLDER = System.getProperty("java.io.tmpdir");
    private static final int MAX_UPLOAD_SIZE = 5 * 1024 * 1024;

    @Override
    public void onStartup(ServletContext sc) {
        ServletRegistration.Dynamic appServlet = sc.addServlet("mvc", new DispatcherServlet(
                new GenericWebApplicationContext()));

        appServlet.setLoadOnStartup(1);

        MultipartConfigElement multipartConfigElement = new MultipartConfigElement(TMP_FOLDER,
                MAX_UPLOAD_SIZE, MAX_UPLOAD_SIZE * 2L, MAX_UPLOAD_SIZE / 2);

        appServlet.setMultipartConfig(multipartConfigElement);
    }
}