如何让myeclipse不发布指定的jar包到tommcat

     最近在搭建工程的时候，使用的是userlibraries的方式管理jar包（本来倾向于使用maven，无奈做的是税务方面的工作，都是内容，访问不了外网，搭建起来不是那么的方便，所以只能用这种比较古老单算是还算比较好的方式），项目搭建完毕之后，部署启动访问结果报错，发现jsp-api-2.2.jar和tomcat冲突导致的问题，但是工程又需要这个jar包，要不然编译出错。为了提高效率，就想编译的时候使用他，但是部署的时候不让他部署。

     然后就绞尽脑汁各种Google、百度，无奈无功而返，只好瞎搞乱搞，看看.classpath文件，看看.project，乱改一通，然并卵，我的心情啊，瞬间跌入谷底，突然想起来 userlibraries文件有一个属性叫systemlibrary，没错就是这个属性，当时也不知道啥玩意，默认的所以的值都是false,如下
    

    <library name="provided" systemlibrary="false">
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/javax.servlet-api-3.1.0.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/common/jsp-api-2.2.jar"/>
    </library>
    <library name="common" systemlibrary="false">
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/ant-1.5.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-beanutils-1.7.0.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-collections-3.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-configuration-1.5.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-dbcp.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-digester-1.6.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-email-1.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-fileupload-1.2.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-io-1.4.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-jexl-1.0.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-lang-2.4.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-lang3-3.4.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-logging-1.0.4.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-modeler-1.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-pool-1.2.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-validator-1.1.3.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/dom4j-1.6.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/jspsmart.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/junit-3.8.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/log4j-1.2.14.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/mail.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/quartz-all-1.6.1.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-codec-1.9.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/structs/jstl-api-1.2.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/structs/jstl-impl-1.2.jar"/>
    </library>

 

 

 

然后我就突发奇想把不需要部署的改为true，如下：

 

    

    <library name="provided" systemlibrary="true">
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/javax.servlet-api-3.1.0.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/common/jsp-api-2.2.jar"/>
    </library>
    <library name="common" systemlibrary="false">
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/ant-1.5.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-beanutils-1.7.0.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-collections-3.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-configuration-1.5.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-dbcp.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-digester-1.6.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-email-1.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-fileupload-1.2.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-io-1.4.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-jexl-1.0.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-lang-2.4.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-lang3-3.4.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-logging-1.0.4.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-modeler-1.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-pool-1.2.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-validator-1.1.3.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/dom4j-1.6.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/jspsmart.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/junit-3.8.1.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/log4j-1.2.14.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/mail.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/common/quartz-all-1.6.1.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/common/commons-codec-1.9.jar"/>
		<archive path="Z:/YWBZPT/trunk/engineering/lib/structs/jstl-api-1.2.jar"/>
        <archive path="Z:/YWBZPT/trunk/engineering/lib/structs/jstl-impl-1.2.jar"/>
    </library>

  

 

结果一部署发现成功了，javax.servlet-api-3.1.0.jar以及jsp-api-2.2.jar都没有部署到tomcat，苍天啊大的啊，终于成功了，爽。

 

最后说一下：我用的myeclipse版本是6.0（吐槽一下，确实速度快，占内存小，但是就是部署的时候蛋碎一地，很多情况处理很费劲，例如不需要部署某个jar包），还有就是为啥改为true，就成功了呢，在此本人没有深究，有知道的大神欢迎指出来，非常感谢。