修改web项目的.settings下的org.eclipse.wst.common.component文件,添加dependent-module节点即可.
(http://www.eclipse.org/forums/index.php/t/204020/)
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<?xml version="1.0" encoding="UTF-8"?>
<project-modules id="moduleCoreId" project-version="1.5.0">
<wb-module deploy-name="cpcns-his-web">
<wb-resource deploy-path="/" source-path="/WebContent"/>
<wb-resource deploy-path="/WEB-INF/classes" source-path="/src"/>
<dependent-module archiveName="cpcns-his-interface.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/cpcns-his-interface/cpcns-his-interface">
<dependency-type>uses</dependency-type>
</dependent-module>
<dependent-module archiveName="cpcns-his-server.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/cpcns-his-server/cpcns-his-server">
<dependency-type>uses</dependency-type>
</dependent-module>
<dependent-module archiveName="cpcns-systems-base.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/cpcns-systems-base/cpcns-systems-base">
<dependency-type>uses</dependency-type>
</dependent-module>
<property name="context-root" value="cpcns-his-web"/>
<property name="java-output-path" value="/cpcns-his-web/build/classes"/>
</wb-module>
</project-modules>
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