tomcat下使用DevLoader，引入共通工程

1.将tomcat plugin插件中的DevloaderTomcat7.jar拷贝到tomcat安装目录下的lib文件夹

2.工程中，共通工程为B   引入共通工程的为A

    A--->Properties---->Java Build Path---->Projects---->add B

    A--->Properties--->Tomcat---->DevLoader Classpath---->B/bin

3.A--->Tomcat project---->Update context definition

4.重新启动tomcat

控制台输出：

[DevLoader] Starting DevLoader
[DevLoader] projectdir=D:\work\j2ee_workspace\TravelManagementWeb\WebContent
[DevLoader] added file:/D:/work/j2ee_workspace/TravelCommon/bin/

5.Tomcat 7.0\conf\Catalina\localhost中的工程文件xml

<Context path="/TravelService" reloadable="true" docBase="D:\work\j2ee_workspace\TravelService\WebContent" workDir="D:\work\j2ee_workspace\TravelService\work" >
    <Loader className="org.apache.catalina.loader.DevLoader" reloadable="true" debug="1" useSystemClassLoaderAsParent="false" />
</Context>