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基于javaweb的JSP+Servlet嘟嘟蛋糕商城系统(java+jdbc+servlet+jsp+ajax+mysql+fileupload)

更新于

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

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基于javaweb的JSP+Servlet嘟嘟蛋糕商城系统(java+jdbc+servlet+jsp+ajax+mysql+fileupload)

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前台用户：
user1	123456
user2	123456

后台管理员：
admin	123456

一、项目运行 环境配置：

Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）

项目技术：

Jdbc+ Servlert + html+ css + JavaScript + JQuery + Ajax + Fileupload等等

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				JSONResult ok = JSONResult.ok();
				resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
			}else {
				JSONResult errorMsg = JSONResult.errorMsg("删除失败，请重试");
				resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
			}			
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}




@WebServlet("/frontstage_userServlet")
public class UserServlet extends HttpServlet {
	UserService service = new UserService();

	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String action = req.getParameter("action");

		switch (action) {
		case "login":
			login(req, resp);
			break;
		case "checkUserNameRepeat":
			checkUserNameRepeat(req, resp);
			break;
		case "register":
			register(req, resp);
			break;
		case "logout":
			logout(req, resp);
			break;
		case "checkOldPassword":
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				resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
			}else {
				JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
				resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
			}			
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 成功修改密码后，清除session中的数据，并且重新跳转到登录页
	 * @param req
	 * @param resp
	 */
    public void afterModifyPassword(HttpServletRequest req, HttpServletResponse resp) {
    	req.getSession().removeAttribute("user");
		try {
			//使用iframe时，要避免这种直接跳转的方式
			// 此时只会让内嵌的iframe跳转到登录页，并非整个页面
//			resp.sendRedirect("backstage/login.jsp");
			
			PrintWriter writer = resp.getWriter();
			writer.print("<html>");
			writer.print("<script>");
			writer.print("window.open('"+ req.getContextPath()+"/backstage/login.jsp','_top')");
			writer.print("</script>");
			writer.print("</html>");
		} catch (IOException e) {
			e.printStackTrace();
		}
    }
	

	/**
	 * 退出登录
	 */
    public void logout(HttpServletRequest req, HttpServletResponse resp) {
		req.getSession().removeAttribute("user");
		try {
			resp.sendRedirect("backstage/login.jsp");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}
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	} catch (IOException e) {
		e.printStackTrace();
	}	
}


/**
 * @throws IOException 
 * 根据商品名查询商品
 * @param req
 * @param resp
 * @throws  
 */
public void getGoodsListByName(HttpServletRequest req,HttpServletResponse resp) throws IOException  {
	//设置请求编码格式:
			req.setCharacterEncoding("utf-8");
			//设置响应编码格式			
			resp.setContentType("text/html;charset=utf-8");
	String name = req.getParameter("goodsName");
	String type = req.getParameter("type");
	
	Map<String,String> parmas = new HashMap<>();
	parmas.put("name", name);
	parmas.put("type", type);
	
	List<Goods> list = service.getGoodsByName(parmas);

	try {
		if(list != null) {
			JSONResult ok = JSONResult.ok(list);
			resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
		}else {
			JSONResult errorMsg = JSONResult.errorMsg("未获取到任何数据，请重试");
			resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
		}			
		
	} catch (Exception e) {
		e.printStackTrace();
	}
}





/**
 * 修改商品时，获取此商品的全部数据，并返回至修改页面
 */
public void toGoodsUpdatePage(HttpServletRequest req,HttpServletResponse resp) {
	int id = Integer.parseInt(req.getParameter("id"));
	Goods goods = service.getGoodsInfoById(id);
	req.setAttribute("goods", goods);
	try {
		req.getRequestDispatcher("/backstage/tgls/goodsManage/goods_update.jsp").forward(req, resp);
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	//String type = req.getParameter("type");
	
	Map<String,String> parmas = new HashMap<>();
	parmas.put("name", name);
	//parmas.put("type", type);
	
	List<Orders> list = service.getOrdersByName(parmas);

	try {
		if(list != null) {
			JSONResult ok = JSONResult.ok(list);
			resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
		}else {
			JSONResult errorMsg = JSONResult.errorMsg("未获取到任何数据，请重试");
			resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
		}			
		
	} catch (Exception e) {
		e.printStackTrace();
	}
}


/**
 * 修改订单时，获取此订单的全部数据，并返回至修改页面
 */
public void toOrdersUpdatePage(HttpServletRequest req,HttpServletResponse resp) {
	int id = Integer.parseInt(req.getParameter("id"));
	Orders orders = service.getOrdersInfoById(id);
	req.setAttribute("orders", orders);
	try {
		req.getRequestDispatcher("/backstage/tgls/ordersManage/orders_update.jsp").forward(req, resp);
	} catch (ServletException e) {
		e.printStackTrace();
	} catch (IOException e) {
		e.printStackTrace();
	}	
	
}

/**
 *  修改订单
 * @throws IOException 
 */

public void updateOrders(HttpServletRequest req,HttpServletResponse resp) throws IOException {
	//设置请求编码格式:
	req.setCharacterEncoding("utf-8");
	//设置响应编码格式			
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			writer.print("<script>");
			writer.print("window.open('"+ req.getContextPath()+"/backstage/login.jsp','_top')");
			writer.print("</script>");
			writer.print("</html>");
		} catch (IOException e) {
			e.printStackTrace();
		}
    }
	

	/**
	 * 退出登录
	 */
    public void logout(HttpServletRequest req, HttpServletResponse resp) {
		req.getSession().removeAttribute("user");
		try {
			resp.sendRedirect("backstage/login.jsp");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}


/**

项目链接：
https://javayms.github.io?id=131422312105200hu
https://javayms.pages.dev?id=131422312105200hu