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資源簡介

一個 java加入購物車實例,實現了購物車的增刪改,jdk1.6以上,tomcat6.0以上,eclipse、myeclipse、idea導進去就可運行,附帶了數據庫文件。

資源截圖

代碼片段和文件信息

package?com.dw.controll;

import?java.io.IOException;
import?java.util.ArrayList;
import?java.util.HashMap;
import?java.util.List;
import?java.util.Map;

import?javax.servlet.ServletException;
import?javax.servlet.http.HttpServlet;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?javax.servlet.http.HttpSession;

import?com.dw.dao.ProductDao;
import?com.dw.model.Product;

public?class?AddCarServlet?extends?HttpServlet?{

public?void?doGet(HttpServletRequest?request?HttpServletResponse?response)
throws?ServletException?IOException?{
String?id?=?request.getParameter(“id“);
HttpSession?session?=?request.getSession();
response.setContentType(“text/html;charset=utf-8“);
try?{
ProductDao?dao?=?new?ProductDao();
Product?p?=?dao.findProductByid(Integer.parseInt(id));
Listject>>?shoppinglist=(Listject>>)session.getAttribute(“shoppinglist“);
if?(shoppinglist?==?null)?{
shoppinglist?=?new?ArrayListject>>();
}
boolean?isExits=false;
????for(?Mapject>?map:shoppinglist){
???? if(((Product)map.get(“goods“)).getId()==Integer.parseInt(id)){
???? int?count=Integer.parseInt((map.get(“count“).toString()));
???? count++;
???? map.put(“count“?count);
???? isExits=true;
???? break;
???? }
????}
????if(!isExits){
???? Mapject>?goodsMap?=?new?HashMapject>();
???? goodsMap.put(“goods“?p);
???? goodsMap.put(“count“?“1“);
???? shoppinglist.add(goodsMap);
???? session.setAttribute(“shoppinglist“?shoppinglist);
????}
????????????response.sendRedirect(“car.jsp“);
}?catch?(NumberFormatException?e)?{
//?TODO?Auto-generated?catch?block
e.printStackTrace();
}?catch?(Exception?e)?{
//?TODO?Auto-generated?catch?block
e.printStackTrace();
}
}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????529??2016-10-31?10:00??ShoppingCar\.classpath

?????文件????????307??2017-05-24?10:41??ShoppingCar\.mymetadata

?????文件???????1754??2016-10-31?09:45??ShoppingCar\.project

?????文件????????500??2014-07-17?20:30??ShoppingCar\.settings\.jsdtscope

?????文件???????1040??2014-07-17?20:30??ShoppingCar\.settings\com.genuitec.eclipse.j2eedt.core.prefs

?????文件????????364??2016-10-31?09:45??ShoppingCar\.settings\org.eclipse.jdt.core.prefs

?????文件????????471??2016-10-31?09:45??ShoppingCar\.settings\org.eclipse.wst.common.component

?????文件????????252??2016-10-31?09:45??ShoppingCar\.settings\org.eclipse.wst.common.project.facet.core.xml

?????文件?????????49??2016-10-31?09:45??ShoppingCar\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2016-10-31?09:45??ShoppingCar\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????6258??2017-11-25?10:37??ShoppingCar\db\shop.sql

?????文件???????1919??2014-07-17?20:30??ShoppingCar\src\com\dw\controll\AddCarServlet.java

?????文件???????1125??2016-10-31?11:48??ShoppingCar\src\com\dw\controll\DelCarServlet.java

?????文件????????895??2014-07-17?20:30??ShoppingCar\src\com\dw\controll\ProductsListServlet.java

?????文件???????2207??2014-07-17?20:30??ShoppingCar\src\com\dw\dao\ProductDao.java

?????文件???????1156??2014-07-17?20:30??ShoppingCar\src\com\dw\model\Product.java

?????文件???????1458??2014-07-17?20:30??ShoppingCar\src\com\dw\util\DbCon.java

?????文件????????268??2016-10-31?09:55??ShoppingCar\src\db.properties

?????文件???????1751??2014-07-17?20:30??ShoppingCar\WebRoot\car.jsp

?????文件????????848??2014-07-17?20:30??ShoppingCar\WebRoot\index.jsp

?????文件???????1361??2016-10-31?12:16??ShoppingCar\WebRoot\list.jsp

?????文件?????????36??2014-07-17?20:30??ShoppingCar\WebRoot\meta-INF\MANIFEST.MF

?????文件???????2998??2017-11-24?13:17??ShoppingCar\WebRoot\WEB-INF\classes\com\dw\controll\AddCarServlet.class

?????文件???????1879??2017-11-24?13:17??ShoppingCar\WebRoot\WEB-INF\classes\com\dw\controll\DelCarServlet.class

?????文件???????1607??2017-11-24?13:17??ShoppingCar\WebRoot\WEB-INF\classes\com\dw\controll\ProductsListServlet.class

?????文件???????3092??2017-11-24?13:17??ShoppingCar\WebRoot\WEB-INF\classes\com\dw\dao\ProductDao.class

?????文件???????1860??2017-11-24?13:17??ShoppingCar\WebRoot\WEB-INF\classes\com\dw\model\Product.class

?????文件???????2066??2017-11-24?13:17??ShoppingCar\WebRoot\WEB-INF\classes\com\dw\util\DbCon.class

?????文件????????268??2016-10-31?09:55??ShoppingCar\WebRoot\WEB-INF\classes\db.properties

?????文件?????540852??2013-02-28?14:01??ShoppingCar\WebRoot\WEB-INF\lib\mysql-connector-java-5.0.8-bin.jar

............此處省略26個文件信息

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