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我嘗試了幾件事情，但仍然存在此問題。我正在使用Eclipse Kepler。我得到的導入Maven項目下面的錯誤JavaServer Faces 2.2需要動態Web模塊2.5或更新版本
的JavaServer Faces 2.2無法安裝：一個或多個約束沒有得到滿足
的JavaServer Faces 2.2需要動態Web模塊2.5或更高版本
1）我嘗試了Maven Java EE Configuration Marker with Java Server Faces 1.2中提到的幾件事，但沒有運氣。 2）此外，我進入.settings和修改org.eclipse.wst.common.project.facet.core.xml和修改jst.web指向2.5或3.0版本;但我收到了一些其他錯誤。
我想讓Sencha GXT的例子在基於http://neiliscoding.blogspot.ie/2012/05/how-to-setup-examples-for-use-in-gxt-3.html的maven/eclipse構建中工作，並讓這個javaserver在eclipse中面臨問題。 這裏是我的pom.xml
<?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/maven-v4_0_0.xsd">
<!-- POM file generated with GWT webAppCreator -->
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>xx</artifactId>
<groupId>ss</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>guis</artifactId>
<packaging>war</packaging>
<name>GWT Maven Archetype</name>
<properties>
<!-- Convenience property to set the GWT version -->
<gwtVersion>2.5.1</gwtVersion>
<!-- GWT needs at least java 1.5 -->
<webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.google.gwt.inject</groupId>
<artifactId>gin</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwtVersion}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwtVersion}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<version>${gwtVersion}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
<classifier>sources</classifier>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sencha.gxt</groupId>
<artifactId>gxt-chart</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>com.sencha.gxt</groupId>
<artifactId>gxt</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>com.sencha.gxt</groupId>
<artifactId>uibinder-bridge</artifactId>
<version>2.4.0</version>
</dependency>
</dependencies>
<build>
<!-- Generate compiled stuff in the folder used for developing mode -->
<outputDirectory>${webappDirectory}/WEB-INF/classes</outputDirectory>
<plugins>
<!-- GWT Maven Plugin -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.5.1</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test</goal>
<!-- <goal>i18n</goal> -->
<goal>generateAsync</goal>
</goals>
</execution>
</executions>
<!-- Plugin configuration. There are many available options, see gwt-maven-plugin
documentation at codehaus.org -->
<configuration>
<runTarget>guis.html</runTarget>
<hostedWebapp>${webappDirectory}</hostedWebapp>
<i18nMessagesBundle>com.harmonia.client.Messages</i18nMessagesBundle>
</configuration>
</plugin>
<!-- Copy static web files before executing gwt:run -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<executions>
<execution>
<phase>compile</phase>
<!-- <goals> <goal>exploded</goal> </goals> -->
</execution>
</executions>
<configuration>
<webappDirectory>${webappDirectory}</webappDirectory>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
這裏是我的web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!-- <!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app> -->
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>GXT Created Web Application</display-name>
<!-- Default page to serve -->
<welcome-file-list>
<welcome-file>guis.html</welcome-file>
</welcome-file-list>
正如你所看到的，我在上面的web.xml中嘗試不同的DTD ，但我仍然有問題。希望得到任何提示
謝謝。在新的工作區重新創建幫助了我。試過maven更新和重新導入項目到同一工作區（但這些沒有幫助）幾件事情 –
爲什麼當我這樣做時，我得到這個異常：java.lang.ClassNotFoundException：org.glassfish.jersey.servlet.ServletContainer ??? –
@It_Does_Not_Matter使用Glassfish。 –