modulemanageaction.java

《JSP网站开发典型模块与实例精讲》一书光盘源码

package org.appfuse.webapp.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.appfuse.service.ModuleManager;
import org.appfuse.model.Module;
import org.appfuse.webapp.form.ModuleForm;
import java.util.*;

/**
 * @author Administrator
 *
 * 更改所生成类型注释的模板为 窗口 > 首选项 > Java > 代码生成 > 代码和注释
 */
public class ModuleManageAction
    extends BaseAction {

    private static Log log = LogFactory.getLog(ModuleManageAction.class);

    public ActionForward delete(ActionMapping mapping, ActionForm form,
                                HttpServletRequest request,
                                HttpServletResponse response) throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("entering 'delete' method...");
        }
        ModuleManager mgr = (ModuleManager) getBean("moduleManager");
        ModuleForm moduleForm = (ModuleForm) form;
        mgr.removeModule(moduleForm.getModuleid());
        return list(mapping, form, request, response);
    }

    public ActionForward list(ActionMapping mapping, ActionForm form,
                              HttpServletRequest request,
                              HttpServletResponse response) throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("entering 'list' method...");
        }
        ModuleManager mgr = null;
        List lst = null;
        try {
            mgr = (ModuleManager) getBean("moduleManager");
            lst = mgr.getModules(new Module());
        }
        catch (Exception es) {
            log.error("in list: ", es);
        }
        request.setAttribute("modules", lst);
        return mapping.findForward("list");
    }

    public ActionForward save(ActionMapping mapping, ActionForm form,
                              HttpServletRequest request,
                              HttpServletResponse response) throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("entering 'save' method...");
        }

        if (isCancelled(request)) {
            return list(mapping, form, request, response);
        }
        ModuleManager mgr = (ModuleManager) getBean("moduleManager");
        ModuleForm moduleForm = (ModuleForm) form;
        Module module = new Module();
        copyProperties(module, moduleForm);
        try {
            mgr.saveModule(module);
        }catch(Exception es){
            log.error(es);
        }
        return list(mapping, form, request, response);
    }

    public ActionForward update(ActionMapping mapping, ActionForm form,
                                HttpServletRequest request,
                                HttpServletResponse response) throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("entering 'update' method...");
        }
        if (isCancelled(request)) {
            return list(mapping, form, request, response);
        }
        ModuleManager mgr = (ModuleManager) getBean("moduleManager");
        ModuleForm moduleForm = (ModuleForm) form;

        request.setAttribute("module", mgr.getModule(moduleForm.getModuleid()));
        return mapping.findForward("update");
    }

    public ActionForward search(ActionMapping mapping, ActionForm form,
                                HttpServletRequest request,
                                HttpServletResponse response) throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("entering 'search' method...");
        }
        String no = request.getParameter("moduleid");
        if (no == null || no.length() < 1) {
            return list(mapping, form, request, response);
        }
        ArrayList list = new ArrayList(1);
        ModuleManager mgr = (ModuleManager) getBean("moduleManager");
        try {
            list.add(mgr.getModule(Integer.parseInt(no)));
        }
        catch (Exception es) {
            log.error(es);
        }
        request.setAttribute("modules", list);
        return mapping.findForward("list");
    }

    public ActionForward unspecified(ActionMapping mapping, ActionForm form,
                                     HttpServletRequest request,
                                     HttpServletResponse response) throws
        Exception {
        return list(mapping, form, request, response);
    }
}