mecateo

prueba

mecateo

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.Scanner;

mecateo

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.Scanner;

mecateo

usa la siguiente sintaxis:
<ol class="viewer-nav"><li *ngFor="let section of sections" 
    [attr.data-sectionvalue]="section.value" (click)="get_data($event)">{{ section.text }}</li>  
</ol>

o

<ol class="viewer-nav"><li *ngFor="let section of sections" 
    attr.data-sectionvalue="{{section.value}}" (click)="get_data($event)">{{ section.text }}</li>  
</ol>

mecateo

https://www.javaguides.net/2019/06/angular-8-crud-example-tutorial.html

https://ultimatecourses.com/blog/ng-class-angular-classes

https://malcoded.com/posts/angular-ngclass/

https://css-tricks.com/snippets/css/a-guide-to-flexbox/

https://www.djamware.com/post/5d0eda6f80aca754f7a9d1f5/angular-8-tutorial-learn-to-build-angular-8-crud-web-app

mecateo

JasperReport ReporteMaestro = (JasperReport) JRLoader.loadObject('aqui pones la ruta donde esta alojado tu reporte');
JasperPrint jasperPrint = JasperFillManager.fillReport(ReporteMaestro, 'aqui le pasas los parametros en tu caso es null', 'aqui va la conexion base de datos');
JasperViewer reporte = new JasperViewer(jasperPrint, false);
reporte.setLocationRelativeTo(null);
reporte.setFocusableWindowState(true);
reporte.setTitle("Reporte de empresas");
reporte.setModalExclusionType(java.awt.Dialog.ModalExclusionType.TOOLKIT_EXCLUDE);
reporte.setVisible(true);
reporte.setFocusable(true);