在导入maven工程时候出现以下错误，是什么原因？

Question

Multiple annotations found at this line:
- Failed to read artifact descriptor for org.apache.cxf:cxf:jar:2.6.0
- Failed to read artifact descriptor for com.opensymphony:xwork-core:jar:2.2.3
- Failed to read artifact descriptor for org.apache.neethi:neethi:jar:3.0.2
- Failed to read artifact descriptor for com.soasoft:SB:jar:2.0.0
- Failed to read artifact descriptor for org.apache:poi-excelant:jar:3.8-20120326
- Failed to read artifact descriptor for javax.script:script-api:jar:1.0
- Failed to read artifact descriptor for commons-fileupload:commons-fileupload:jar:
1.2.2
- Failed to read artifact descriptor for net.fckeditor:fckeditor-java:jar:2.4.1
- Failed to read artifact descriptor for com.lowagie:itextasian:jar:1.0.1
- Failed to read artifact descriptor for asm:asm-tree:jar:3.1
- Failed to read artifact descriptor for org.springframework:spring-test:jar:
3.1.0.RELEASE
- Failed to read artifact descriptor for jdbc.oracle:oracle:jar:10.2.0.1.0
- Failed to read artifact descriptor for org.slf4j:slf4j-log4j12:jar:1.6.1
- Failed to read artifact descriptor for org.apache.tiles:tiles-el:jar:2.2.2
- Failed to read artifact descriptor for org.codehaus.jackson:jackson-mapper-
asl:jar:1.9.3
- Failed to read artifact descriptor for net.sf:jxls-core:jar:0.9.9
- Failed to read artifact descriptor for
javax.servlet:com.springsource.javax.servlet:jar:2.5.0

Answer 1

POM 中写得不对。

Maven是基于项目对象模型(POM)，可以通过一小段描述信息来管理项目的构建，报告和文档的软件项目管理工具。

Maven 除了以程序构建能力为特色之外，还提供 Ant 所缺少的高级项目管理工具。由于 Maven 的缺省构建规则有较高的可重用性，所以常常用两三行 Maven 构建脚本就可以构建简单的项目，而使用 Ant 则需要十几行。事实上，由于 Maven 的面向项目的方法，许多 Apache Jakarta 项目发文时使用 Maven，而且公司项目采用 Maven 的比例在持续增长。

Maven这个单词来自于意第绪语，意为知识的积累，最早在Jakata Turbine项目中它开始被用来试图简化构建过程。当时有很多项目，它们的Ant build文件仅有细微的差别，而JAR文件都由CVS来维护。于是Maven创始者开始了Maven这个项目，该项目的清晰定义包括，一种很方便的发布项目信息的方式，以及一种在多个项目中共享JAR的方式。