fishnewaction.java

JPetStore源码

package org.springframework.samples.jpetstore.web.struts;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.beans.support.PagedListHolder;
import org.springframework.samples.jpetstore.domain.Fish;

/**
 * 怴婯夋柺偺傾僋僔儑儞
 * 
 * @author 焨寷曮
 */
public class FishNewAction extends BaseAction {

	/**
	 * 弶婜壔張棟
	 * 
	 * @param mapping
	 *            傾僋僔儑儞偺攝抲忣曬
	 * @param form
	 *            Servlet忣曬
	 * @param request
	 *            HTTP儕僋僄僗僩
	 * @param response
	 *            HTTP儗僗億儞僗
	 * @throws Exception
	 *             堎忢張棟
	 * @return ActionForward 揮憲偟偨儁乕僕偺儘僕僢僋柤徧
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {

		// FormBean偺弶婜壔
		FishForm fishForm = (FishForm) form;

		// Fish偺弶婜壔
		Fish fish = new Fish();

		// categoryId傪庢摼偡傞
		String categoryId = request.getParameter("categoryId");

		// 乽怴婯乿儃僞儞傪墴壓偡傞応崌丄categoryId偺抣偑偁傞
		if (categoryId == null) {
			categoryId = (String) request.getSession().getAttribute(
					"categoryId");
		}

		// 弶婜張棟偺敾掕
		if (!"fishNewId".equals(categoryId) && categoryId != null) {

			// FORMBEAN偺抣傪僙僢僩偡傞
			fish = fishForm.getFish();

			// ProductId偑嬻敀偺応崌
			if (fish.getProductId() == null || "".equals(fish.getProductId())) {

				// 僄儔乕儊僙僢僕
				request.setAttribute("message", "Please take Product ID!");

				// 僄儔乕夋柺傊挼傇
				return mapping.findForward("error");
			}

			// 慡晹偱嬻敀偑側偄応崌
			else {

				// FISH偺抣傪僙僢僩偡傞
				fish.setCategory(Fish.CATEGORY_ID);

				// SQL暥傪峴偆
				getPetStore().insertFish(fish);

				// 堦棗偺僨乕僞傪庢摼偡傞
				PagedListHolder productList = new PagedListHolder(getPetStore()
						.getFish(Fish.CATEGORY_ID));

				// 昞帵僨乕僞審悢傪僙僢僩偡傞
				productList.setPageSize(4);

				// request偵僨乕僞傪僙僢僩偡傞
				request.getSession()
						.setAttribute("searchFishList", productList);
				request.setAttribute("productList", productList);

				// categoryId抣傪僙僢僩偡傞
				categoryId = "fishBrowse";
				request.getSession().setAttribute("categoryId", categoryId);

				// 堦棗夋柺傊挼傇
				return mapping.findForward("browse");
			}
		} else {

			// FORM偺僋儕傾張棟
			fishForm.setFish(fish);

			// 弶婜抣偺曄峏
			categoryId = "firstFish";
			request.getSession().setAttribute("categoryId", categoryId);
		}

		// 怴婯夋柺傊挼傇
		return mapping.findForward("success");
	}
}