Fehler: Paket javax.servlet existiert nicht
Ich habe versucht, mit jsf 2 einen Anmeldefilter in meiner Web-App zu implementieren.
https://stackoverflow.com/tags/servlet-filters/info
Nachdem ich meinen Filter kompiliert und die .class in "web-inf / classes" hinzugefügt habe (wie im Handbuch angegeben), hat der Filter funktioniert, aber ich habe die falsche URL für die Weiterleitung zur Anmeldeseite angegeben, sodass ich die filter.class aus dem Ordner gelöscht habe (Web-Inf / Klassen) und versuchte, das Projekt erneut zu kompilieren, aber es schlug fehl, und seitdem bekomme ich "Paket javax.servlet existiert nicht"
Es ist komisch, weil bevor es funktionierte und ich javax.servlet in meiner pom.xml habe. Ich habe versucht, das Projekt zu reinigen, aber nichts.
Das ist meine Filterklasse:
package Bean;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* Created with IntelliJ IDEA.
* User: rodrigo
* Date: 28-04-13
* Time: 06:54 AM
* To change this template use File | Settings | File Templates.
*/
@WebFilter("/Contenido/*")
public class filtro implements Filter {
@Override
public void init(FilterConfig config) throws ServletException {
// If you have any <init-param> in web.xml, then you could get them
// here by config.getInitParameter("name") and assign it as field.
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws ServletException, IOException {
HttpServletRequest req = (HttpServletRequest) request;
LoginBean user = (LoginBean) req.getSession().getAttribute("user");
if (user != null && user.isLoggedIn()) {
// User is logged in, so just continue request.
chain.doFilter(request, response);
} else {
// User is not logged in, so redirect to index.
HttpServletResponse res = (HttpServletResponse) response;
res.sendRedirect(req.getContextPath() + "/Contenido/Login.xhtml");
}
}
@Override
public void destroy() {
// If you have assigned any expensive resources as field of
// this Filter class, then you could clean/close them here.
}
}
Das ist der Fehler:
\Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[5,20] error: package javax.servlet does not exist
[ERROR] \Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[6,20] error: package javax.servlet does not exist
[ERROR] \Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[7,20] error: package javax.servlet does not exist
[ERROR] \Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[8,20] error: package javax.servlet does not exist
[ERROR] \Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[9,20] error: package javax.servlet does not exist
[ERROR] \Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[10,20] error: package javax.servlet does not exist
[ERROR] \Users\rodrigo\IdeaProjects\Frutemu\src\main\java\Bean\filtro.java:[11,31] error: package javax.servlet.annotation does not exist
meine pom.xml:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>Frutemu</groupId>
<artifactId>Frutemu</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>Frutemu Maven Webapp</name>
<url>http://maven.apache.org</url>
<repositories>
<repository>
<id>prime-repo</id>
<name>Prime Repo</name>
<url>http://repository.primefaces.org</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.ejb</groupId>
<artifactId>ejb-api</artifactId>
<version>3.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>3.5</version>
</dependency>
<dependency>
<groupId>org.primefaces.themes</groupId>
<artifactId>all-themes</artifactId>
<version>1.0.9</version>
</dependency>
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-impl</artifactId>
<version>2.0.2-b10</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- MySQL database driver -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
<dependency>
<groupId>org.glassfish.web</groupId>
<artifactId>el-impl</artifactId>
<version>2.2.1-b04</version>
<scope>provided</scope>
</dependency>
<!-- OpenJPA framework -->
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-all</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>sqljdbc4</artifactId>
<version>4.0</version>
</dependency>
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>4.1.2</version>
</dependency>
</dependencies>
<build>
<finalName>Frutemu</finalName>
<plugins>
<!-- Open Jpa -->
<plugin>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-maven-plugin</artifactId>
<version>2.2.0</version>
<configuration>
<includes>**/model/*.class</includes>
<addDefaultConstructor>true</addDefaultConstructor>
<enforcePropertyRestrictions>true</enforcePropertyRestrictions>
</configuration>
<executions>
<execution>
<id>enhancer</id>
<phase>process-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Plugin para levantar una instancia de Tomcat 7 liviana, única para este proyecto -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.0</version>
<configuration>
<url>http://127.0.0.1:8080/manager/text</url>
<server>TomcatServer</server>
<path>/Frutemu</path>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jasperreports-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>compile-reports</goal>
</goals>
</execution>
</executions>
<dependencies>
<!--note this must be repeated here to pick up correct xml validation -->
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>4.1.2</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>