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java - 支柱 : Using Logic Iterate but not getting the updated list value in Action

转载 作者：行者123 更新时间：2023-12-01 05:40:36 26 4
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我正在开发一个读取 XML 的应用程序，这些 XML 的值设置在“对象”(consumerXML)中，该对象设置在列表中，列表将设置在 session 中，键是“结果”

request.setAttribute("results", list)

流程是这样的

  1. Welcome.JSP，其操作表单为consumerxmlActionForm --> 这里没有问题
  2. editxml.jsp 即使在这里，actionform 是consumerxmlActionForm --> 这里列表被填充，但不会传递相同的内容。

editxml.jsp:

<小时/> 
<%@ taglib uri="/tags/struts-bean" prefix="bean"%>
<%@ taglib uri="/tags/struts-html" prefix="html"%>
<%@ taglib uri="/tags/struts-logic" prefix="logic"%>


<html:html locale="true">

<head>

<title>Middleware UI</title>
<script language="JavaScript">
function submitFormEdit(frm,cmd) {
frm.operation.value = cmd;
frm.submit();
}
</script>
<html:base />

</head>

<body bgcolor="white">

<html:form action="/consumerxmlActionForm">
<html:hidden property="operation" />

<html:errors />

<table>

<tr>
<td align="center">beanID</td>
<td align="center">dayStartTime</td>
<td align="center">dayEndTime</td>
<td align="center">dayThreshold</td>
<td align="center">nightThreshold</td>

</tr>
<logic:iterate id="consumerXML" name="results" >
<tr>
<td align="center"><html:text name="consumerXML"
property="beanID" /></td>
<td align="center"><html:text name="consumerXML"
property="dayTime" /></td>
<td align="center"><html:text name="consumerXML"
property="nightTime" /></td>
<td align="center"><html:text name="consumerXML"
property="dayThreshold" /></td>
<td align="center"><html:text name="consumerXML"
property="nightThreshold" /></td>
</tr>
</logic:iterate>

<tr>
<td align="right"><html:submit onclick="submitFormEdit(consumerxmlActionForm, 'edit')">Change</html:submit></td>
</tr>
</table>
</html:form>
</body>
</html:html>
<小时/> 
 import javax.servlet.http.HttpServletRequest;  
    import javax.servlet.http.HttpServletResponse;  

    import org.apache.struts.action.Action;  
    import org.apache.struts.action.ActionForm;  
    import org.apache.struts.action.ActionForward;  
    import org.apache.struts.action.ActionMapping;  

    import com.unicel.vo.ConsumerXML;  
    import com.unicel.xml.ParseXML;  

    public class ConsumerXMLAction extends Action {  

        public ActionForward execute(ActionMapping mapping, ActionForm form,  
                HttpServletRequest request, HttpServletResponse response)  
                throws Exception  
        {  
            String operation = request.getParameter("operation");  
            ConsumerXMLActionForm actionForm = (ConsumerXMLActionForm) form;  
            if(operation != null && operation.equals("edit")) {  
                System.out.println("*** Operation is **** " + operation);  
                System.out.println("*** actionForm.getOtherGWList() ****" + actionForm.getOtherGWList());  
                System.out.println("*** From Session *** " + request.getAttribute("results"));  
                if(actionForm.getOtherGWList() != null) {  
                    for(ConsumerXML consumerXML : actionForm.getOtherGWList()) {  
                        System.out.println("*** Current XML *** " + consumerXML);  
                    }  
                }  
            } else {  
                ParseXML parseXML = new ParseXML();  
                parseXML.parse();  
                actionForm.setOtherGWList(parseXML.otherGatewayConsumerList);  
                request.setAttribute("results", parseXML.otherGatewayConsumerList);  

            }  

            return mapping.findForward("success");  

        }  

    }  






    import java.util.ArrayList;  

    import org.apache.struts.action.ActionForm;  

    import com.unicel.vo.ConsumerXML;  

    public class ConsumerXMLActionForm extends ActionForm {  

        private static final long serialVersionUID = 1L;  

        private ArrayList<ConsumerXML> otherGWList;  

        private String operation;  

        private String beanID;  
        private String dayTime;  
        private String nightTime;  
        private String dayThreshold;  
        private String nightThreshold;  

        public String getBeanID() {  
            return beanID;  
        }  

        public void setBeanID(String beanID) {  
            this.beanID = beanID;  
        }  

        public String getDayTime() {  
            return dayTime;  
        }  

        public void setDayTime(String dayTime) {  
            this.dayTime = dayTime;  
        }  

        public String getNightTime() {  
            return nightTime;  
        }  

        public void setNightTime(String nightTime) {  
            this.nightTime = nightTime;  
        }  

        public String getDayThreshold() {  
            return dayThreshold;  
        }  

        public void setDayThreshold(String dayThreshold) {  
            this.dayThreshold = dayThreshold;  
        }  

        public String getNightThreshold() {  
            return nightThreshold;  
        }  

        public void setNightThreshold(String nightThreshold) {  
            this.nightThreshold = nightThreshold;  
        }  

        public ArrayList<ConsumerXML> getOtherGWList() {  
            return otherGWList;  
        }  

        public void setOtherGWList(ArrayList<ConsumerXML> otherGWList) {  
            this.otherGWList = otherGWList;  
        }  

        public String getOperation() {  
            return operation;  
        }  

        public void setOperation(String operation) {  
            this.operation = operation;  
        }  

    }

editxml.jsp 正确显示列表，当我单击“更改”按钮时，我在 session 中没有得到“结果”。还有其他方法可以获取该列表吗？

感谢和问候拉古.K

最佳答案

您应该使用表单将值返回到操作并使用 id 并在那里给出 VO。然后表格就可以使用了。您不需要为此进行 session 。

        <logic:iterate name="monthlyGainLossForm" property="ptcList" id="productTaxCat">

关于java - 支柱 : Using Logic Iterate but not getting the updated list value in Action，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7282812/

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