maven学习中的错误，求解

Question

在编写pom.xml是就会报错，同时用mvn clean compile等命令操作时，会报如下错误：
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building demo-webapp Maven Webapp 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] Missing POM for org.springframework:org.springframework.aop:jar:2.5.6
[WARNING] Missing POM for org.springframework:org.springframework.asm:jar:2.5.6
[WARNING] Missing POM for org.springframework:org.springframework.aspects:jar:2.5.6
[WARNING] Missing POM for org.springframework:org.springframework.beans:jar:2.5.6
[WARNING] Missing POM for org.springframework:org.springframework.context:jar:2.5.6
[WARNING] Missing POM for org.springframework:org.springframework.context.support:jar:2.5.6
[WARNING] Missing POM for org.springframework:org.springframework.core:jar:2.5.6
这时为啥，望那位大神解决一下，谢谢mavenjarwebapp

Answer 1

pom文件中这些依赖项没有添加进去，丢失jar

Answer 2

不是提示jar包丢了呀！把缺点哪些jar 包加进去不就行啦

Answer 3

依赖都添加了，不过不知道为啥就错了，我的pom.xml如下：
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.aop</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.asm</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.aspects</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.beans</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.context</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.context.support</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.core</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.expression</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.jdbc</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.orm</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.transaction</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.web</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>slf4j</groupId>
<artifactId>log4j12</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>standard</groupId>
<artifactId>standard</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>struts2</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>2.3.4</version>
</dependency>
<dependency>
<groupId>struts2</groupId>
<artifactId>struts2-core</artifactId>
<version>2.0.11</version>
</dependency>
<dependency>
<groupId>xwork</groupId>
<artifactId>xwork-core</artifactId>
<version>2.0.4</version>
</dependency>
<dependency>
<groupId>antlr</groupId>
<artifactId>antlr</artifactId>
<version>2.7.2</version>
</dependency>
<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>aspectjrt</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>aspectjweaver</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>common</groupId>
<artifactId>common-annotations</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>ommons-collections</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-io</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-lang</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons</groupId>
<artifactId>commons-pool</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>freeer</groupId>
<artifactId>freeer</artifactId>
<version>2.3.19</version>
</dependency>
<dependency>
<groupId>hibernate</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<dependency>
<groupId>hibernate</groupId>
<artifactId>hibernate</artifactId>
<version>3.6.0</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.11.0.GA</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>jta</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>ognl</groupId>
<artifactId>ognl</artifactId>
<version>3.0.5</version>
</dependency>
<dependency>
<groupId>ojdbc</groupId>
<artifactId>ojdbc</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
</dependencies>

Answer 4

检查下jar包是否加载到classpath中了

Answer 5

这是我的classpath中的内容：<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="src/main/webapp/WEB-INF/classes" path="src/main/java"/>
<classpathentry excluding="**" kind="src" output="src/main/webapp/WEB-INF/classes" path="src/main/resources"/>
<classpathentry kind="src" output="src/main/webapp/WEB-INF/classes" path="src/test/java"/>
<classpathentry excluding="**" kind="src" output="src/main/webapp/WEB-INF/classes" path="src/test/resources"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
<classpathentry kind="con" path="org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER"/>
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="org.eclipse.jst.component.dependency" value="/WEB-INF/lib"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="src/main/webapp/WEB-INF/classes"/>
</classpath>

Answer 6

新建一个classpath 试试路径指向jar下载的文件夹

Answer 7

Your groupId's dependency is wrong

Answer 8

数据仓库中的包不是通过jar包加载的吗？