Bom dia a todos.
Tenho um arquivo.pdf e preciso abri-lo em um guia no navegador. Como uso Vaadin, que é um frame de front, no site eles disponibilizam um Add-On para fazer esta tarefa, então adicionei a dependência deste Add-On e copiei o código fornecido pelo site Vaadin para o sistema.
Código:
public void navegador() {
VerticalLayout layout = new VerticalLayout();
StreamResource streamResource = new StreamResource(
"RelatorioVendas.pdf", () -> getClass().getResourceAsStream("/RelatorioVendas.pdf")); // file in src/main/resources/
PdfBrowserViewer viewer = new PdfBrowserViewer(streamResource);
viewer.setHeight("100%");
layout.add(viewer);
}
Mas este código gera este stack:
java.lang.NoClassDefFoundError: org/vaadin/alejandro/PdfBrowserViewer
at br.com.fjsistemas.relatorios.PDF.navegador(PDF.java:53) ~[classes/:na]
at br.com.fjsistemas.relatorios.RelatorioVendaView.lambda$5(RelatorioVendaView.java:131) ~[classes/:na]
at com.vaadin.flow.component.ComponentEventBus.fireEventForListener(ComponentEventBus.java:205) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.component.ComponentEventBus.handleDomEvent(ComponentEventBus.java:373) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.component.ComponentEventBus.lambda$addDomTrigger$dd1b7957$1(ComponentEventBus.java:264) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.internal.nodefeature.ElementListenerMap.lambda$fireEvent$2(ElementListenerMap.java:443) ~[flow-server-2.6.3.jar:2.6.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1507) ~[na:na]
at com.vaadin.flow.internal.nodefeature.ElementListenerMap.fireEvent(ElementListenerMap.java:443) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.rpc.EventRpcHandler.handleNode(EventRpcHandler.java:61) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.rpc.AbstractRpcInvocationHandler.handle(AbstractRpcInvocationHandler.java:66) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocationData(ServerRpcHandler.java:412) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.ServerRpcHandler.lambda$handleInvocations$1(ServerRpcHandler.java:393) ~[flow-server-2.6.3.jar:2.6.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1507) ~[na:na]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:393) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:320) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:92) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1570) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:252) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:111) ~[vaadin-spring-12.4.0.jar:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:710) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.6.jar:5.3.6]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.6.jar:5.3.6]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at java.base/java.lang.Thread.run(Thread.java:830) ~[na:na]
Caused by: java.lang.ClassNotFoundException: org.vaadin.alejandro.PdfBrowserViewer
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
at java.base/java.lang.Class.forName0(Native Method) ~[na:na]
at java.base/java.lang.Class.forName(Class.java:416) ~[na:na]
at org.springframework.boot.devtools.restart.classloader.RestartClassLoader.loadClass(RestartClassLoader.java:145) ~[spring-boot-devtools-2.4.5.jar:2.4.5]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
... 70 common frames omitted
Fui pesquisar para ver o pq deste stack, e em um canal do Discord voltado para programadores vaadin, recebi esta resposta:
Você sabe o que isso significa? Que a implementação não está disponível em tempo de execução porque você a fornecerá de uma dependência diferente (ou JDK ou o contêiner que a executa). Exclua o escopo fornecido ou use compilar (é o padrão).
E deixou este link para descrever o problema
https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#dependency-scope
Confesso que não entendi o que ele quis dizer com “JDK ou o contêiner que a executa”…alguém poderia me ajudar a entender?
Posta o código do seu pom.xml.
1 curtida
@staroski
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>br.com.fjsistemas</groupId>
<artifactId>fjsistemas</artifactId>
<name>FJSistemas</name>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<java.version>1.8</java.version>
<vaadin.version>14.6.3</vaadin.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.5</version>
</parent>
<repositories>
<!-- The order of definitions matters. Explicitly defining central here to make sure it has the highest priority. -->
<!-- Main Maven repository -->
<repository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<!-- Repository used by many Vaadin add-ons -->
<repository>
<id>Vaadin Directory</id>
<url>https://maven.vaadin.com/vaadin-addons</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<!-- Main Maven repository -->
<pluginRepository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<!-- Replace artifactId with vaadin-core to use only free components -->
<artifactId>vaadin</artifactId>
<exclusions>
<!-- Webjars are only needed when running in Vaadin 13 compatibility mode -->
<exclusion>
<groupId>com.vaadin.webjar</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.insites</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymer</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymerelements</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.vaadin</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.webcomponents</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-spring-boot-starter</artifactId>
<exclusions>
<!-- Excluding so that webjars are not included. -->
<exclusion>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-testbench</artifactId>
<scope>test</scope>
</dependency>
<!-- Include JUnit 4 support for TestBench and others -->
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.github.bonigarcia</groupId>
<artifactId>webdrivermanager</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version><!--$NO-MVN-MAN-VER$-->
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.5.0</version><!--$NO-MVN-MAN-VER$-->
</dependency>
<dependency>
<groupId>org.vaadin</groupId>
<artifactId>textfieldformatter</artifactId>
<version>5.2.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.25</version><!--$NO-MVN-MAN-VER$-->
</dependency>
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>6.17.0</version>
</dependency>
<dependency>
<groupId>org.vaadin.alejandro</groupId>
<artifactId>pdf-browser</artifactId>
<version>3.1.0</version>
</dependency>
</dependencies>
<build>
<defaultGoal>spring-boot:run</defaultGoal>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<!-- Clean build and startup time for Vaadin apps sometimes may exceed
the default Spring Boot's 30sec timeout. -->
<configuration>
<wait>500</wait>
<maxAttempts>240</maxAttempts>
</configuration>
</plugin>
<!--
Take care of synchronizing java dependencies and imports in
package.json and main.js files.
It also creates webpack.config.js if not exists yet.
-->
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>prepare-frontend</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Production mode is activated using -Pproduction -->
<id>production</id>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>build-frontend</goal>
</goals>
<phase>compile</phase>
</execution>
</executions>
<configuration>
<productionMode>true</productionMode>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>it</id>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<id>start-spring-boot</id>
<phase>pre-integration-test</phase>
<goals>
<goal>start</goal>
</goals>
</execution>
<execution>
<id>stop-spring-boot</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Runs the integration tests (*IT) after the server is started -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
<configuration>
<trimStackTrace>false</trimStackTrace>
<enableAssertions>true</enableAssertions>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
Opa, eae cara, bão?
O que acho que o cara quis dizer com isso, pelo pouco que conheço, está relacionado às dependências provided do maven.
Por exemplo. Supondo que vc tenha um projeto web rodando no servidor jboss. O Jboss já possui várias das implementações do JavaEE (libs) para que possam ser usadas pelas aplicações que irão rodar dentro dele. Com isso, se sua aplicação for usar alguma dessas dependências, basta vc informar no pom.xml a mesma com o escopo provided. Isso significa que o JAR dessa dependência não será baixada, mas sim usada a que foi provida pelo jboss. Nesse exemplo, o jboss é o container que está executando seu sistema.
A parte da jdk, penso que é referente à api do Java como a de collections, por exemplo, mas confesso que achei confuso a pessoa citar a jdk na explicação.
De qualquer forma, acho que isso não se aplica ao seu problema, pois se trata de alguma dependência que está faltando ou está na versão errada, pois o erro é um ClassNotFoundException.
pessoal do fórum, se falei bobeira ou esqueci de algo, por favor, me corrijam. Vlw!
1 curtida
@Lucas_Camara e ai mano, blz? Então, entendi o que vc disse, mas realmente está estranho…estou pensando em não utilizar este Add-On e tentar fazer com Java puro mesmo, talvez seja a solução, estou pesquisando como fazer isso em Java.
Esse link talvez te ajude a criar um botão que faça o download do pdf (vc deve ter acesso aos bytes do pdf): https://vaadin.com/forum/thread/17434646/vaadin-10-let-user-download-a-file-with-dynamically-defined-filename
1 curtida
@Lucas_Camara
Com servlet não ficaria melhor?
Com servlet funcionaria, mas como vc está usando o vaadin (junto com spring), não sei se compensaria. Ainda mais com o Spring. Sempre que trabalhei com spring, nunca tive a necessidade de escrever um servlet na aplicação, pois o spring fornece meios que abstrai toda a complexidade.
1 curtida
@Lucas_Camara, blz vou olhar este link que vc mandou…vlw!!
E esse add-on aqui, tu já viu?
Parece fácil de usar pelo menos:
Button button = new Button("Gerar relatório");
FileDownloadWrapper buttonWrapper = new FileDownloadWrapper(
new StreamResource("relatorio.pdf", () -> relatorioService.gerarRelatorio()));
buttonWrapper.wrapComponent(button);
add(buttonWrapper);
Essa parte: relatorioService.gerarRelatorio(), seria responsável por retornar o relatório como um array de bytes (byte[]).
1 curtida
@Lucas_Camara
sim parece fácil, mas como ficaria a classe RelatorioService(que neste momento nem existe)?
Esse nome RelatorioService foi soh um nome qualquer somente para exemplificar. No seu caso, seria a classe que criou que gera o relatório, porém, em vez de salvar um arquivo no servidor, vc geraria o array de bytes e retornaria no método.
Em outro post, tu tinha postado uma classe que estava correta, mas não lembro o nome dela
1 curtida
Essa classe gera o pdf @Lucas_Camara
package br.com.fjsistemas.relatorios;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.springframework.stereotype.Component;
import br.com.fjsistemas.repository.VendaRepository;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
@Component
public class ConverteJrxmlToPdf {
@SuppressWarnings("unused")
private VendaRepository vendaRepository;
private DataSource dataSource;
public ConverteJrxmlToPdf(VendaRepository vendaRepository, DataSource dataSource) {
this.vendaRepository = vendaRepository;
this.dataSource = dataSource;
}
public void conversor() throws JRException, SQLException {
JasperReport document = JasperCompileManager.compileReport(
"C:\\Users\\fjd2320\\eclipse-workspace\\fjsistemas-vendas-vaadin\\src\\main\\resources\\RelatorioVendas.jrxml");
JasperPrint print = JasperFillManager.fillReport(document, null, dataSource.getConnection());
JasperExportManager.exportReportToPdfFile(print,
"C:\\Users\\fjd2320\\eclipse-workspace\\fjsistemas-vendas-vaadin\\src\\main\\resources\\RelatorioVendas.pdf");
}
}
Essa mesmo, mas essa parte:
JasperExportManager.exportReportToPdfFile(
print,
"C:\\Users\\fjd2320\\eclipse-workspace\\fjsistemas-vendas-vaadin\\src\\main\\resources\\RelatorioVendas.pdf"
);
Trocaria por:
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JasperExportManager.exportReportToPdfStream(print, baos);
byte[] relatorio = baos.toByteArray();
return relatorio;
Talvez essa parte que converte o relatório para array de bytes não esteja 100% correta, mas a ideia é essa. E vc usaria o array de bytes no componente File Download Wrapper.
1 curtida
@Lucas_Camara
então a classe ficaria assim:
package br.com.fjsistemas.relatorios;
import java.io.ByteArrayOutputStream;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.springframework.stereotype.Component;
import br.com.fjsistemas.repository.VendaRepository;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
@Component
public class ConverteJrxmlToPdf {
@SuppressWarnings("unused")
private VendaRepository vendaRepository;
private DataSource dataSource;
public ConverteJrxmlToPdf(VendaRepository vendaRepository, DataSource dataSource) {
this.vendaRepository = vendaRepository;
this.dataSource = dataSource;
}
public byte[] conversor() throws JRException, SQLException {
JasperReport document = JasperCompileManager.compileReport(
"C:\\Users\\fjd2320\\eclipse-workspace\\fjsistemas-vendas-vaadin\\src\\main\\resources\\RelatorioVendas.jrxml");
JasperPrint print = JasperFillManager.fillReport(document, null, dataSource.getConnection());
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JasperExportManager.exportReportToPdfStream(print, baos);
byte[] relatorio = baos.toByteArray();
return relatorio;
}
}
e na classe view o botão ficaria assim:
exportarRelatorio.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
exportarRelatorio.getStyle().set("margin-top", "37px");
exportarRelatorio.setWidth("180px");
exportarRelatorio.addClickListener(event -> {
FileDownloadWrapper buttonWrapper = new FileDownloadWrapper(
new StreamResource("RelatorioVenda.pdf", () -> pdf.conversor()));
buttonWrapper.wrapComponent(exportarRelatorio);
add(buttonWrapper);
@Lucas_Camara
haha…não…da erro de assinatura no metodo:
Lambda expression's signature does not match the signature of the functional interface method accept(OutputStream, VaadinSession)
Eu que falei errado na verdade. Em vez de retornar o array de bytes, parece que ele pede o stream mesmo. Tente mudar para isso:
FileDownloadWrapper buttonWrapper = new FileDownloadWrapper(
new StreamResource("RelatorioVenda.pdf", () -> new ByteArrayInputStream(pdf.conversor()))
);
1 curtida
java.lang.NoClassDefFoundError: org/vaadin/olli/FileDownloadWrapper
at br.com.fjsistemas.relatorios.RelatorioVendaView.lambda$5(RelatorioVendaView.java:127) ~[classes/:na]
at com.vaadin.flow.component.ComponentEventBus.fireEventForListener(ComponentEventBus.java:205) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.component.ComponentEventBus.handleDomEvent(ComponentEventBus.java:373) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.component.ComponentEventBus.lambda$addDomTrigger$dd1b7957$1(ComponentEventBus.java:264) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.internal.nodefeature.ElementListenerMap.lambda$fireEvent$2(ElementListenerMap.java:443) ~[flow-server-2.6.3.jar:2.6.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1507) ~[na:na]
at com.vaadin.flow.internal.nodefeature.ElementListenerMap.fireEvent(ElementListenerMap.java:443) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.rpc.EventRpcHandler.handleNode(EventRpcHandler.java:61) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.rpc.AbstractRpcInvocationHandler.handle(AbstractRpcInvocationHandler.java:66) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocationData(ServerRpcHandler.java:412) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.ServerRpcHandler.lambda$handleInvocations$1(ServerRpcHandler.java:393) ~[flow-server-2.6.3.jar:2.6.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1507) ~[na:na]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:393) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:320) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:92) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1570) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:252) ~[flow-server-2.6.3.jar:2.6.3]
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:111) ~[vaadin-spring-12.4.0.jar:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:710) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.6.jar:5.3.6]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.6.jar:5.3.6]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at java.base/java.lang.Thread.run(Thread.java:830) ~[na:na]
Caused by: java.lang.ClassNotFoundException: org.vaadin.olli.FileDownloadWrapper
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
at java.base/java.lang.Class.forName0(Native Method) ~[na:na]
at java.base/java.lang.Class.forName(Class.java:416) ~[na:na]
at org.springframework.boot.devtools.restart.classloader.RestartClassLoader.loadClass(RestartClassLoader.java:145) ~[spring-boot-devtools-2.4.5.jar:2.4.5]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
... 69 common frames omitted
O vaadin é falho com Add-On para pdf
