利用Eclipse中的Maven构建Web项目

1、在进行上述操作时，pom.xml一直报错

<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>com.you.maven</groupId>
  <artifactId>maven-you-web</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>maven-you-web Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
    	<groupId>br.gov.frameworkdemoiselle.archetypes</groupId>
    	<artifactId>demoiselle-jsf-jpa</artifactId>
    	<version>2.4.0</version>
    </dependency>
    <dependency>
    	<groupId>jstl</groupId>
    	<artifactId>jstl</artifactId>
    	<version>1.2</version>
    </dependency>
    <dependency>
    	<groupId>org.codehaus.plexus</groupId>
    	<artifactId>plexus-archiver</artifactId>
    	<version>2.4.4</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>maven-you-web</finalName>
  </build>
</project>

Failure to transfer org.codehaus.plexus:plexus-archiver:jar:1.2 from http://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of 
 central has elapsed or updates are forced. Original error: Could not transfer artifact org.codehaus.plexus:plexus-archiver:jar:1.2 from/to central (http://repo.maven.apache.org/maven2): connection timed 
 out to http://220.231.231.15/download/13282160/36221368/3/jar/84/9/1379427315796_265/plexus-archiver-1.2.jar

（1）先去掉Maven工程的maven特性，选中工程 鼠标右键-->Maven-->Disable Maven Nature

（2）为工程增加Maven特性,选中工程 鼠标右键-->Configure-->Convert to Maven Project