build spring boot (mvnw) with docker can not use cache

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• best way to add a spring boot web application with JSPs to a docker container?

  so i have a spring boot web application, it uses JSPs, and im supposed to put it in a container .
  my question is what is the best way ? ive tried to copy the project and then run it there using a wmvn like so : dockerfile:

  FROM openjdk:8-jdk-alpine
  ADD . /input-webapp
  WORKDIR /input-webapp
  EXPOSE 8080:8080
  ENTRYPOINT ./mvnw spring-boot:run
  

  which works, but it takes a long time getting the dependencies and feels messy .
  

  and ive tried to package it into a jar, and then copy the jar only, and run it : dockerfile:

  FROM openjdk:8-jdk-alpine
  ADD target/input-webapp-0.0.1-SNAPSHOT.jar input-webapp-0.0.1-SNAPSHOT.jar
  EXPOSE 8080:8080
  ENTRYPOINT ["java","-jar","input-webapp-0.0.1-SNAPSHOT.jar"]
  

  but this way it cant see the JSPs, or at least i think this is the problem, as i get a 404.
  

  so is there a better way ? can i copy the jsps plus the jar to make it work? thanks
• How can I delete a row by its SKU instead of its ID?

  I try to delete the row using the sku of the product. I'm using spring boot and angular. I got an error when I added the sku on my button like this one (click)="onDeleteProductBySku(deleteClick?.sku)" it said that the Property 'sku' does not exist on type '(product: Product) => void'.. On my command prompt, I got this error. How can I solve this problem?

  Error: product/product.component.html:50:109 - error TS2339: Property 'sku' does not exist on type '(product: Product) => void'.
  
  50 <button class="btn btn-outline-danger btn-sm me-2" (click)="onDeleteProductBySku(deleteClick?.sku)">Delete</button>
                                                                                                                                    
  product/product.component.ts:12:16
      12   templateUrl: './product.component.html',
                        ~~~~~~~~~~~~~~~~~~~~~~~~~~
  Error occurs in the template of component ProductComponent.
  

  ProductsController.java --> This is working on the postman.

  //Delete a product record using sku
  //http://localhost:8080/products/deletebysku?sku=12345678
  
  @DeleteMapping("/products/deletebysku")
  @ResponseBody
  private void deleteProductBySku(@RequestParam String sku){
      productsService.deleteProductBySku(sku);
  }
  

  product.component.ts

   public deleteProduct!: Product;
  
   public onDeleteProductBySku(sku: string): void {
      this.productServive.deleteProductBySku(sku).subscribe(
        (response: void) => {
          this.messageShow();
          console.log(response);
          this.getAllProduct();
        },
        (error: HttpErrorResponse) => {
          this.errorMessage(error.message);
        }
      );
   }
  
   public deleteClick(product: Product) {
     this.deleteProduct = product;
     console.log("delete by sku");
   }
  

  product.service.ts

  public deleteProductBySku(sku: string): Observable<void> {
    return this.http.delete<void>(`${this.apiServerUrl}/products/deletebysku?sku=${sku}`);
  }
  

  product.component.html

  <button class="btn btn-outline-danger btn-sm me-2" (click)="onDeleteProductBySku(deleteClick?.sku)">Delete</button>
  
• PyQT5 doesn't work on docker ImportError: libsmime3.so: cannot open shared object file: No such file or directory

  I have a Dockerfile with PyQT installed like below

  FROM ubuntu:20.04
  ENV DEBIAN_FRONTEND=noninteractive
  RUN adduser --quiet --disabled-password qtuser && usermod -a -G audio qtuser
  RUN apt-get update -y \
      && apt-get install alsa -y \
      && apt-get install -y python3-pyqt5 \
      && apt-get install python3-pip -y && \
      pip3 install pyqtwebengine
  WORKDIR /htmltopdf
  

  I built my image like this docker build -t html-to-pdf .

  Then I ran my image like this docker run --rm -v "$(pwd)":/htmltopdf -u qtuser -it html-to-pdf python3 htmlToPdfnew.py --url https://www.w3schools.com/howto/howto_css_register_form.asp

  But I'm getting below error

  Traceback (most recent call last):
    File "htmlToPdfnew.py", line 2, in <module>
      from PyQt5 import QtWidgets, QtWebEngineWidgets
  ImportError: libsmime3.so: cannot open shared object file: No such file or directory
  

  I do NOT get that error in my PC.

  below is my python code

  import sys
  from PyQt5 import QtWidgets, QtWebEngineWidgets
  from PyQt5.QtCore import QUrl, QTimer
  from PyQt5.QtGui import QPageLayout, QPageSize
  from PyQt5.QtWidgets import QApplication
  import argparse
  
  
  def main():
      url = ''
      parser = argparse.ArgumentParser(description="Just an example", formatter_class=argparse.ArgumentDefaultsHelpFormatter)
      parser.add_argument("--url", help="Type url")
      args = parser.parse_args()
      config = vars(args)
      url = config['url']
  
  
      app = QtWidgets.QApplication(sys.argv)
      loader = QtWebEngineWidgets.QWebEngineView()
      loader.setZoomFactor(1)
      layout = QPageLayout()
      layout.setPageSize(QPageSize(QPageSize.A4Extra))
      layout.setOrientation(QPageLayout.Portrait)
      loader.load(QUrl(url))
      loader.page().pdfPrintingFinished.connect(lambda *args: QApplication.exit())
  
      def emit_pdf(finished):
          QTimer.singleShot(2000, lambda: loader.page().printToPdf("test.pdf", pageLayout=layout))
  
      loader.loadFinished.connect(emit_pdf)
      sys.exit(app.exec_())
  
  if __name__ == '__main__':
      main()
  

  so how do I resolve below error ?

  Traceback (most recent call last):
    File "htmlToPdfnew.py", line 2, in <module>
      from PyQt5 import QtWidgets, QtWebEngineWidgets
  ImportError: libsmime3.so: cannot open shared object file: No such file or directory
  
• "no main manifest attribute" in .jar Netbeans 13

  I recently just started toying around with Maven in java. Time comes to test my project, it works fine in the NetBeans window, running the main class found in App.java (com.MyCompany.App), but when I try to run it from a command line I get an error:

  "no main manifest attribute"

  I'm using Apache Netbeans 13 with Maven to build the project

  Project structure

  POM.xml file

  Any help will be apreciated Thanks in advance
• Spring Boot - nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type '' available

  I'm trying to add the following statement to a Spring Boot service:

  @Autowired 
  private ApELDatabasePublisherService eventPublisher;
  

  The dependency for eventPublisher is contained in maven, in this jar file:

  .m2\repository\com\xxxx\bip\bip-event-logging\1.5.3.7-RELEASE.jar
  

  It compiles, builds and updates the local maven repository, but when I launch the application, it terminates with an error message.

  Initially, the error message was this:

  No qualifying bean of type 'com.xxxx.bip.components.el.services.ApELDatabasePublisherService' available
  

  However, that disappeared when I added com.xxxx.bip.components.el.services to the component scan.

  The next message was this:

  No qualifying bean of type 'com.xxxx.bip.components.el.dao.services.IApElTypeNameLookupService' available:
  

  So I added com.xxxx.bip.components.el.dao.services to the component scan, and that error went away.

  But now I have a third message which is not going away, as follows:

  No qualifying bean of type 'com.xxxx.bip.components.el.repository.IApELEventTypeRepository' available
  

  This message stays even when I add the following to component scan:

  com.xxxx.bip.components.el.repository
  

  So my current scan looks like this:

  @EnableRetry
  @EnableScheduling
  @SpringBootApplication(exclude = { HibernateJpaAutoConfiguration.class })
  @ComponentScan(basePackages = {
          "com.xxxx.bip.components.el.services",
          "com.xxxx.bip.components.el.dao.services",
          "com.xxxx.bip.components.el.repository",
  

  I've verified that the class in question, IApELEventTypeRepository is included in the jar file and is annotated as "@Repository"

  Why would it not find it when it finds the previous two packages?