added frontend to gradle build

build.gradle

@@ -10,10 +10,35 @@ sourceCompatibility = '17'
 compileJava.options.encoding = 'UTF-8'
 compileTestJava.options.encoding = 'UTF-8'
 
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
 repositories {
     mavenCentral()
 }
 
+processResources{
+    dependsOn 'copyFrontendToBuild'
+}
+
+bootJar{
+    archiveFileName = "app.jar"
+}
+
+task copyFrontendToBuild(type: Copy) {
+    dependsOn 'npmBuild'
+    from "$projectDir/frontend/dist/"
+    into "$buildDir/resources/main/static"
+}
+
+task npmBuild(type: Exec) {
+    workingDir './frontend/'
+    commandLine 'npm','run', 'build'
+}
+
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-test'
     implementation 'org.springframework.boot:spring-boot-starter'