界面显示效果如下：
图6.3.2.1 修改项目图
图6.3.2.2 添加项目图
图6.3.2.3 删除确认图
最后,信息新增、修改或删除确认后，需要提交给ProjectFormSaveAction进行，ProjectFormSaveAction内容如下：
package com.ort.strutsdemo.simpledemo.controller;
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.boss.module.operation.object.Site;
import com.ort.strutsdemo.simpledemo.Constants;
import com.ort.strutsdemo.simpledemo.ui.ProjectForm;
import com.ort.strutsdemo.simpledemo.controller.exception.ExceptionBean;
import com.ipbs.util.web.ParamUtils;
/**
*
* <p>Title: Struts Training </p>
* <p>Description: 项目管理功能页面的导向,以及页面所需要数据的初始化,同时,处理删除操作</p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author Liuz
* @version 1.0
*/
public class ProjectFormSaveAction
extends Action {
BusinessDelegate businessDelegate = null;
public ActionForward execute(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response) {
businessDelegate = BusinessDelegate.getInstance();
ProjectForm form = (ProjectForm)actionForm;
ActionForward forward = null;
String action = form.getAction();
if (this.isCancelled(request)) {
return (actionMapping.findForward("cancel"));
}
if("modify".equals(action)){
forward = modifyProject(actionMapping, actionForm,
request, response);
}
else if ("create".equals(action)) {
forward = createProject(actionMapping, actionForm,request, response);
}else if("delete".equals(action)){
forward = deleteProject(actionMapping, actionForm,request, response);
}
return forward;
}
public ActionForward modifyProject(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response
)
{
ProjectForm form = (ProjectForm) actionForm;
String projectCode = form.getProjectCode();
String projectName = form.getProjectName();
String siteCode = form.getSiteCode();
double discount = form.getDiscount();
try{
Site site = businessDelegate.getSite(siteCode);
Project project = new Project();
project.setProjectCode(projectCode);
project.setProjectName(projectName);
project.setDiscount(discount);
project.setSite(site);
businessDelegate.modifyProject(project);
return actionMapping.findForward("success");
}catch(Exception ex){
com.ipbs.util.Log.println(
"[ProjectFormSaveAction.java][Exception]:" + ex.getMessage());
ExceptionBean exception = new ExceptionBean();
exception.setErrorMsg(Constants.getExceptionMsg(ex));
exception.setReturnPath(actionMapping.getPath());
request.setAttribute(Constants.EXCEPTION_BEAN, exception);
return actionMapping.findForward("failed");
}
}
public ActionForward createProject(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response
) {
ProjectForm form = (ProjectForm) actionForm;
String projectCode = form.getProjectCode();
String projectName = form.getProjectName();
String siteCode = form.getSiteCode();
double discount = form.getDiscount();
try{
Site site = businessDelegate.getSite(siteCode);
Project project = new Project();
project.setProjectCode(projectCode);
project.setProjectName(projectName);
project.setDiscount(discount);
project.setSite(site);
businessDelegate.createProject(project);
return actionMapping.findForward("success");
}catch(Exception ex){
com.ipbs.util.Log.println(
"[ProjectFormSaveAction.java][Exception]:" + ex.getMessage());
ExceptionBean exception = new ExceptionBean();
exception.setErrorMsg(Constants.getExceptionMsg(ex));
exception.setReturnPath(actionMapping.getPath());
request.setAttribute(Constants.EXCEPTION_BEAN, exception);
return actionMapping.findForward("failed");
}
}
public ActionForward deleteProject(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response
) {
ProjectForm form = (ProjectForm)actionForm;
String projectCode = form.getProjectCode();
try{
businessDelegate.deleteProject(projectCode);
request.removeAttribute(Constants.PROJECT_SINGLEFORM_KEY);
return actionMapping.findForward("success");
}catch(Exception ex){
com.ipbs.util.Log.println(
"[ProjectControllerAction.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");
}
}
}
至此为止，该示例项目所使用的绝大部分内容已经介绍完了，因为时间问题，没有对示例程序进行很详细的一一讲解，代码上有些简单的注释，希望你能够看明白，如果大家对以上代码有疑问会发现什么问题，可以发邮件和我沟通([email protected])，另外，我保证上面的代码是真实可运行的,如果用心看，也是可以看明白的(当然只有文章中所列的代码是无法通过编译的)。
个人觉得，做Struts项目非常重要的一个环节就是请求处理流程设计，这也是本示例强调的重点，弄清楚了这一点，看代码也会容易很多。
1.1.1 修改项目信息请求处理流程如下,具体文件内容请查看前述内容：
1、 ProjectListSearchAction
2、 projectlist.jsp
3、 ProjectFormLoadAction
4、 projectform.jsp
5、 ProjectFormSaveAction
6、 success.jsp or failed.jsp
7、 ProjectListSearchAction
1.1.2 删除项目信息
请求处理流程如下,具体文件内容请查看前述内容：
1、 ProjectListSearchAction
2、 projectlist.jsp
3、 ProjectFormLoadAction
4、 projectform.jsp
5、 ProjectFormSaveAction
6、 success.jsp or failed.jsp
7、 ProjectListSearchAction
2. 附录
无。
3. 索引本文地址：http://com.8s8s.com/it/it16532.htm