Add web config to serve Angular app from Spring

src/main/java/org/minager/core/config/WebConfiguration.java

@@ -0,0 +1,34 @@
+package org.minager.core.config;
+
+import java.io.IOException;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import org.springframework.web.servlet.resource.PathResourceResolver;
+
+/**
+ * This configuration class serves Angular app if the url isn't available in sprint REST module.
+ * 
+ * @author florian
+ *
+ */
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+		registry.addResourceHandler("/**/*")
+				.addResourceLocations("classpath:/static/")
+				.resourceChain(true)
+				.addResolver(new PathResourceResolver() {
+					@Override
+					protected Resource getResource(String resourcePath, Resource location) throws IOException {
+						Resource requestedResource = location.createRelative(resourcePath);
+						return requestedResource.exists() && requestedResource.isReadable() ? requestedResource
+								: new ClassPathResource("/static/index.html");
+					}
+				});
+    }
+}