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Struts快速学习指南21(内部培训教材)-大部分素材来自于《Programming Jakarta Struts》一书

作者：未知 来源：月光软件站 加入时间：2005-2-28　月光软件站

1.1.1           创建项目信息

执行项目信息查询列表显示的文件请求处理顺序如下：

1、  ProjectListSearchAction

2、  projectlist.jsp

3、  ProjectFormLoadAction

4、  projectform.jsp

5、  ProjectFormSaveAction

6、  success.jsp or failed.jsp

7、  ProjectListSearchAction

 

ProjectFormLoadAction内容如下：

package com.ort.strutsdemo.simpledemo.controller;

 

 

/**

 * <p>Title: Struts Training </p>

 * <p>Description: Struts内部培训Demo</p>

 * <p>Copyright: Copyright (c) 2004</p>

 * <p>Company: </p>

 * @author Liuz

 * @version 1.0

 */

import org.apache.struts.action.*;

import javax.servlet.http.*;

import com.ort.strutsdemo.simpledemo.business.BusinessDelegate;

import com.boss.module.operation.object.Project;

import com.ort.strutsdemo.simpledemo.Constants;

import com.ort.strutsdemo.simpledemo.controller.exception.ExceptionBean;

import com.ort.strutsdemo.simpledemo.ui.ProjectForm;

import com.boss.module.operation.object.searchresult.help.ResultSetIterator;

 

public class ProjectFormLoadAction

    extends Action {

  BusinessDelegate businessDelegate = null;

  public ActionForward execute(ActionMapping actionMapping,

                               ActionForm actionForm,

                               HttpServletRequest request,

                               HttpServletResponse response) {

    businessDelegate = BusinessDelegate.getInstance();

    DynaActionForm form = (DynaActionForm)actionForm;

    String action = (String)form.get("action");

    String projectCode = (String)form.get("projectCode");

    try {

        Project project = null;

        if ( ("create".equals(action))) {

            project = new Project();

        }

        else {

            project = businessDelegate.getProject(projectCode);

        }

        project.setAction(action);

        ProjectForm modifyForm = new ProjectForm();

        org.apache.commons.beanutils.PropertyUtils.copyProperties(

            modifyForm, project);

        if (! ("create".equals(action))) {

            modifyForm.setSiteCode(project.getSite().getSiteCode());

        }

        request.setAttribute(Constants.PROJECT_SINGLEFORM_KEY, modifyForm); //为下一个页面，即projectform.jsp的显示提供数据

        //装载当前页面所需要显示小区信息

        ResultSetIterator siteIterator = businessDelegate.getSitesIterator();

        java.util.List sites = siteIterator.getElements(1);

        request.getSession().setAttribute(Constants.SITE_LISTFORM_KEY,

                                          sites);

 

        return actionMapping.findForward("success");

    }

    catch (Exception ex) {

        com.ipbs.util.Log.println("[ProjectFormLoadAction.java][Exception]:"+ex.getMessage());

        ExceptionBean exception = new ExceptionBean();

        exception.setErrorMsg(Constants.getExceptionMsg(ex));

        exception.setReturnPath(actionMapping.findForward("failed.return").getPath());

        request.setAttribute(Constants.EXCEPTION_BEAN,exception);

        return actionMapping.findForward("failed");

    }

  }

}

 

projectform.jsp内容如下：

<%

/**

 * 文件名:projectform.jsp

 * 描述:在执行添加、修改操作之前，需要提供一个form供用户输入数据，在执行删除操作之前，

 *     需要提供一个form将被删除数据显示出来，供用户确认。该jsp页面就是用来满足这些需要，

 *     提供对单条项目信息的显示，根据具体的操作类型(创建、修改、删除)，数据被显示在可编

 *     辑的输入控件中或不可编辑的

 *

 *+------------------------------------------------------------------------------

 * 更改历史

 * 更改时间                   更改人        目标版本             更改内容

 *+------------------------------------------------------------------------------

 * 2004-04-21 16:09          liuz         1.00.000              创建

 *

 *

 */

%>

<%@ page contentType="text/html; charset=GB2312" %>

<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>

<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>

<html>

<head>

<title>

<logic:equal value="modify" property="action"  name="projectForm">

    <bean:message key="project.project_modify"/>

</logic:equal>

<logic:equal value="create" property="action" name="projectForm">

  <bean:message key="project.project_create"/>

</logic:equal>

<logic:equal value="delete" property="action" name="projectForm">

  <bean:message key="project.project_delete"/>

</logic:equal>

</title>

<link href="css/main.css" rel="stylesheet" type="text/css">

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

</head>

<body bgcolor="#ffffff">

 

<html:form action="/projectformsave" method="post" onsubmit="return validateProjectForm(this);">

  <table width="70%"  border="0" align="center" cellpadding="3" cellspacing="1" class="tablebodycolor">

    <tr class="tdbodycolor">

      <td colspan="2" class="tdheadcolor">

          <logic:equal value="modify" property="action" name="projectForm">

                  <bean:message key="project.project_modify"/>

          </logic:equal>

          <logic:equal value="create" property="action" name="projectForm">

              <bean:message key="project.project_create"/>

          </logic:equal>

          <logic:equal value="delete" property="action" name="projectForm">

              <bean:message key="project.project_delete"/>

          </logic:equal>

      </td>

    </tr>

    <tr class="tdbodycolor">

      <td width="15%"><div align="right"><bean:message key="project.projectcode"/></div></td>

      <td width="85%">

          <logic:equal value="modify" property="action" name="projectForm">

                  <html:hidden property="projectCode" write="true"/>

          </logic:equal>

          <logic:notEqual value="modify" property="action" name="projectForm">

              <html:text styleClass="input" maxlength="10" property="projectCode" size="30"/>

          </logic:notEqual>

          </td>

    </tr>

    <tr class="tdbodycolor">

      <td><div align="right"><bean:message key="project.projectname"/></div></td>

      <td><html:text styleClass="input" maxlength="30" property="projectName" size="30"/></td>

    </tr>

    <tr class="tdbodycolor">

      <td><div align="right"><bean:message key="project.discount"/></div></td>

      <td><html:text styleClass="input" maxlength="10" property="discount" size="10"/>

      %</td>

    </tr>

    <tr class="tdbodycolor">

      <td><div align="right"><bean:message key="project.site"/></div></td>

      <td>

          <html:select property="siteCode">

              <html:options  collection="SITES"  labelProperty="siteName"  property="siteCode"/>

          </html:select>

      </td>

    </tr>

    <tr class="tdbodycolor">

      <td colspan="2"><div align="center">

          <html:hidden property="action" />

        <html:submit><bean:message key="button_submit"/></html:submit>

             <html:cancel><bean:message key="button_cancel"/>

             </html:cancel>

      </div></td>

    </tr>

  </table>

</html:form>

<html:javascript formName="projectForm"

        dynamicJavascript="true"

         staticJavascript="false"/>

<script language="Javascript1.1" src="staticJavascript.jsp"></script>

</body>

</html>

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