eclipse中类加载的关系都在项目路径下的.classpath文件中，可以直接复制其内容到新的项目里，内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
<classpathentry kind="lib" path="D:/java/plugins/CGLib/cglib-2.2.2.jar"/>
<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/spring4.0.4"/>
<classpathentry kind="lib" path="D:/java/eclipse/plugins/aopalliance.jar"/>
<classpathentry kind="lib" path="D:/java/eclipse/plugins/aspectj-1.8.0.jar"/>
<classpathentry kind="lib" path="D:/java/eclipse/plugins/spring/commons-logging-1.1.3.jar"/>
<classpathentry kind="output" path="bin"/>
</classpath>