Web 层代码量比较大，涉及的地方也比较多，考虑到文章过于庞大，所以分两篇写。
我们还是先从主要的 action 开始吧。
我们还是先从主要的 action 开始吧。
在 com.game.products.web.actions 包中新建 ProductsAction ，这是一个 DispatchAction ，代码如下：
package com.game.products.web.actions; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.acegisecurity.AccessDeniedException; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; import com.game.commons.Pager; import com.game.commons.PagerService; import com.game.products.model.Products; import com.game.products.services.iface.ProductsService; import com.game.products.web.forms.ProductsForm;
public class ProductsAction extends DispatchAction 
{
private ProductsService productsService; private PagerService pagerService; 
/** */ /** * 显示所有信息
*/ public ActionForward doGetProducts( ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) { String flag = req.getParameter( " flag " ); int totalRows = productsService.getRows(); String currentPage = req.getParameter( " currentPage " ); String pagerMethod = req.getParameter( " pagerMethod " ); Pager pager = pagerService.getPager(currentPage, pagerMethod, totalRows); List productsList = productsService.getProducts(pager.getPageSize(), pager.getStartRow()); req.setAttribute( " productsList " , productsList); req.setAttribute( " PAGER " , pager); req.setAttribute( " flag " , flag); req.setAttribute( " totalRows " , String.valueOf(totalRows)); return mapping.findForward( " all " ); } /** */ /** * 显示一条信息 */ public ActionForward doGetProduct( ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) { String flag = req.getParameter( " flag " ); String gameId = req.getParameter( " gameId " ); String fieldname = "" ; String value = "" ; if (flag.equals( " 2 " )) { fieldname = (String)req.getParameter( " fieldname " ); value = (String)req.getParameter( " value " ); req.setAttribute( " fieldname " , fieldname); req.setAttribute( " value " , value); } Products pd = productsService.getProduct(gameId); req.setAttribute( " pd " , pd); req.setAttribute( " flag " , flag); return mapping.findForward( " one " ); } /** */ /** * 添加信息页面 */ public ActionForward doAddProductPage( ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) { String flag = req.getParameter( " flag " ); req.setAttribute( " flag " , flag); String fieldname = "" ; String value = "" ; if (flag.equals( " 2 " )) { fieldname = (String)req.getParameter( " fieldname " ); value = (String)req.getParameter( " value " ); req.setAttribute( " fieldname " , fieldname); req.setAttribute( " value " , value); } String maxid = productsService.getMaxID(); req.setAttribute( " maxid " , maxid); return mapping.findForward( " add " ); } /** */ /** * 添加信息 */ public ActionForward doAddProduct( ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) { ProductsForm pf = (ProductsForm)form; String flag = pf.getFlag(); req.setAttribute( " flag " , flag); String fieldname = "" ; String value = "" ; if (flag.equals( " 2 " )) { fieldname = pf.getFieldname(); value = pf.getValue(); req.setAttribute( " fieldname " , fieldname); req.setAttribute( " value " , value); } Products pd = new Products(); pd.setGameCapacity(pf.getGameCapacity()); pd.setGameId(pf.getGameId()); pd.setGameMedia(pf.getGameMedia()); pd.setGameNameCn(pf.getGameNameCn()); pd.setGameNameEn(pf.getGameNameEn()); pd.setGameVersion(pf.getGameVersion()); pd.setGameCopyright(pf.getGameCopyright()); pd.setGameContent(pf.getGameContent()); if (pf.getGamePrice().equals( "" )) { pd.setGamePrice( null ); } else { pd.setGamePrice(pf.getGamePrice()); } int sign = 1 ; try { productsService.addProduct(pd); sign = 1 ; } catch (Exception e) { sign = 2 ; } if (sign == 1 ) { return mapping.findForward( " success " ); } else { return mapping.findForward( " failure " ); } } /** */ /** * 修改信息 */ public ActionForward doUpdateProduct( ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) { ProductsForm pf = (ProductsForm)form; String gameId = pf.getGameId(); String flag = pf.getFlag(); req.setAttribute( " flag " , flag); String fieldname = "" ; String value = "" ; if (flag.equals( " 2 " )) { fieldname = pf.getFieldname(); value = pf.getValue(); req.setAttribute( " fieldname " , fieldname); req.setAttribute( " value " , value); } Products pd = productsService.getProduct(gameId); pd.setGameCapacity(pf.getGameCapacity()); pd.setGameId(pf.getGameId()); pd.setGameMedia(pf.getGameMedia()); pd.setGameNameCn(pf.getGameNameCn()); pd.setGameNameEn(pf.getGameNameEn()); pd.setGameVersion(pf.getGameVersion()); pd.setGameCopyright(pf.getGameCopyright()); pd.setGameContent(pf.getGameContent()); if (pf.getGamePrice().equals( "" )) { pd.setGamePrice( null ); } else { pd.setGamePrice(pf.getGamePrice()); } int sign = 1 ; try { productsService.updateProductd(pd); sign = 1 ;