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Webwork2使用经验四则 |
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作者:未知 来源:月光软件站 加入时间:2005-2-28 月光软件站 |
1.jar包中的taglib使用 WebLogic是不支持直接在jar包中使用taglib的,所以,一个在tomcat下运行正常的页面,在weblogic server下可能出错: Parsing of JSP File '/globalList.jsp' failed: -------------------------------------------------------------------------------- /globalList.jsp(2): Could not parse deployment descriptor: java.io.IOException: cannot resolve 'webwork' into a valid tag library probably occurred due to an error in /globalList.jsp line 2: <%@ taglib prefix="ww" uri="webwork"%> -------------------------------------------------------------------------------- Tue Jan 11 15:34:02 CST 2005 解决办法:在web.xml中加入下面的内容 <taglib> <taglib-uri>webwork</taglib-uri> <taglib-location>/WEB-INF/lib/webwork-2.1.jar</taglib-location> </taglib>
2.model的构造 webwork是不负责为你构造model的,所以你的action中应该这样构造model: private ModelInfo modelInfo=new ModelInfo(); 如果你写 private ModelInfo modelInfo会报错的.
3.使用ioc webwork的ioc也需要你自己构造要组建的对象,所以你的model中应该这样写: public class ModelInfo { private List workList=new ArrayList(); private String actionTypeEnglish=""; private String actionType=""; private String actionHref=""; .......... 如果不对List做初始化,系统会报NullPointerException
4.传递到view的model 必须自己为传递到view的model赋值: ModelInfo model=service.getList(orgId); modelInfo.getWorkList().addAll(model.getWorkList()); modelInfo.setActionHref(model.getActionHref()); modelInfo.setActionType(model.getActionType()); modelInfo.setActionTypeEnglish(model.getActionTypeEnglish()); 不调用set方法,传递到view的model将是空的. 
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