Maven 遇到的问题记录及解决

1. 打包或clean时报错：To see the full stack trace of the errors, re-run Maven with the -e switch

[WARNING] The requested profile "test" could not be activated because it does not exist.
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.5:clean (default-clean) on project stcs-monitor: Failed to clean project: Failed to delete C:\Users\Administrator\workspace\stcs-monitor\target -> [Help ]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.

　　原因：通过FTP工具上传到服务器时，打开了target下的classes里面的文件目录，这样的话，有时候会占用target下的文件，导致其他软件无法正常读取改文件，所以报错

2. svn同步时，一直显示target里面更新的class和其他文件

　　在eclipse中，右键点击目录 Team -> Set Property ... 然后在弹出的对话框中，Property name 选 “svn:ignore”，Property Content 输入：target

　　或，在Team Syn... 界面中，选中target下的文件目录，右键选择Add to svn:ignore

3. 启动报错：

严重: Error configuring application listener of class org.springframework.web.context.ContextLoaderListener
java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:520)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:501)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4639)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

十一月 07, 2016 8:16:41 下午 org.apache.catalina.core.StandardContext listenerStart
严重: Error configuring application listener of class org.springframework.web.util.IntrospectorCleanupListener
java.lang.ClassNotFoundException: org.springframework.web.util.IntrospectorCleanupListener
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:520)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:501)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4639)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

解决方法：
将项目 .classpath  文件中

<classpathentry exported="true" kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="org.eclipse.jst.component.dependency" value="true"/>
</attributes>
</classpathentry> 

改为：

<classpathentry exported="true" kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="org.eclipse.jst.component.dependency" value="/WEB-INF/lib"/>
</attributes>
</classpathentry>

解决方案2：选中项目->右键Properties->选择Deployment Assemby->选择Add->选中Java Build Path Entries->Next->选择Maven Dependencies->Finish->Apply->OK
PS:若 Maven Dependencies 已经存在，先选中remove掉，再ADD进去即可

4. Maven打包，没有把空文件打包出去，所以报错，找不到mybatis的mapping-xml文件夹

    <!-- myBatis文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描entity目录, 省掉configuration.xml里的手工配置 -->
        <property name="mapperLocations" value="classpath:/com/kk/mapping/*Mapper.xml" />
    </bean>

解决方法：在pom文件中配置，也打包空文件

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <version>2.4</version>
    <configuration>
        <webXml>src/main/webapp/WEB-INF/web.xml</webXml>
        <!--注：这个参数maven-war-plugin 2.4或以上的版本才支持。 true:打包包含空文件夹 -->
　　　　 <includeEmptyDirectories>true</includeEmptyDirectories>
    </configuration>
</plugin>  

5. 在eclipse的maven插件中搜寻本地仓库中的jar搜索不到的解决方案

原因是因为maven中的本地仓库的index索引没有更新，导致在eclipse的maven插件中搜索不到。

解决决方案：

1. 在eclipse中打开菜单 window-> show view –> other –> Maven -> maven repositories

打开之后，选择local repositories –> local repository ，右击，选择Build index.

2. 更新完索引之后，在通过右键单击pom.xml文件选择maven –> add dependency 或者是打开pom.xml文件，选择dependencies –>add 时，就可以搜索到本地仓库的jar包了。

3. 如果想搜索公服上的jar

　　就选择Global Repositories ->右击 update index. （此处更新比较慢，需要耐心等候）。

　　

6. 打包，无法找到 json-lib的依赖