struts+spring+hibernate的web应用（4.1）-优快云博客

本文介绍了一个游戏产品的Web层管理Action，包括获取所有产品信息、获取单个产品信息、添加及更新产品信息等功能，并展示了具体的实现代码。

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Web层代码编写：

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 ;
} catch (Exception e) {
sign = 2 ;
}
if (sign == 1 ) {
return mapping.findForward( " success " );
} else {
return mapping.findForward( " failure " );
}
}
/** */ /**
* 删除信息
*/
public ActionForward doDeleteProduct(
ActionMapping mapping,
ActionForm form,
HttpServletRequest req,
HttpServletResponse res) {
String flag = req.getParameter( " flag " );
} else {
return mapping.findForward( " failure " );
}
}
/** */ /**
* 删除信息
*/
public ActionForward doDeleteProduct(
ActionMapping mapping,
ActionForm form,
HttpServletRequest req,
HttpServletResponse res) {