add angular material project as embedded in spring

src/main/java/com/jambotronGroup/jambotron/MvcConfig.java

@@ -0,0 +1,17 @@
+package com.jambotronGroup.jambotron;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class MvcConfig implements WebMvcConfigurer {
+    @Value("${spring.resources.static-locations}")
+    String resourceLocations;
+
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        registry.addResourceHandler("/public/**").addResourceLocations(resourceLocations);
+    }
+}

src/main/java/com/jambotronGroup/jambotron/NotFoundHandler.java

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+package com.jambotronGroup.jambotron;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.ResourceUtils;
+import org.springframework.util.StreamUtils;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.servlet.NoHandlerFoundException;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.charset.Charset;
+
+@ControllerAdvice
+public class NotFoundHandler {
+    @Value("${spa.default-file}")
+    String defaultFile;
+
+    @ExceptionHandler(NoHandlerFoundException.class)
+    public ResponseEntity<String> renderDefaultPage() {
+        try {
+            File indexFile = ResourceUtils.getFile(defaultFile);
+            FileInputStream inputStream = new FileInputStream(indexFile);
+            String body = StreamUtils.copyToString(inputStream, Charset.defaultCharset());
+            return ResponseEntity.ok().contentType(MediaType.TEXT_HTML).body(body);
+        } catch (IOException e) {
+            e.printStackTrace();
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("There was an error completing the action.");
+        }
+    }
+}