这是一个应用SSM框架的项目，前端页面整洁清晰。该系统有两个角色，一个是普通用户，另一个是管理员。
普通用户具有注册、登录、查看商品、添加购物车、添加商品收藏、下订单、商品评价、用户地址管理等等功能。
管理员具有登录、管理用户信息、管理商品信息、管理商品活动信息、管理订单信息、管理用户评论信息的等等功能。
应用技术：Jsp + SSM + EasyUi
运行环境：eclipse/IDEA + MySQL5.7 + Tomcat8.5 + JDK1.8
适用
课程设计，大作业，毕业设计，项目练习，学习演示等
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void sendOrder(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");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
User user =(User) req.getSession().getAttribute("user");
Orders order = new Orders();
order.setNumber(order.getRandomString(10));
order.setTime(df.format(new Date()));
order.setName(req.getParameter("recipients"));
order.setAddress(req.getParameter("address"));
req.getRequestDispatcher("/backstage/tgls/ordersManage/orders_update.jsp").forward(req, resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
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
resp.setContentType("text/html;charset=utf-8");
Orders orders = new Orders();
orders.setId(Integer.parseInt(req.getParameter("id")));
orders.setNumber(req.getParameter("number"));
orders.setUser(req.getParameter("user"));
orders.setTime(req.getParameter("time"));
orders.setName(req.getParameter("name"));
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
int id = Integer.parseInt(req.getParameter("id"));
int d = service.deleteOrdersById(id);
try {
if(d>0) {
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();
}
}
}
用户管理服务类：
@WebServlet("/backstage_userServlet")
public class UserServlet extends HttpServlet{
try {
//遍历
for (FileItem file : items) {
if(!file.isFormField()) {
String fileSuffix = FileUploadUtil.getFileSuffix(file);
//必须是jpg或png 图片文件才能进行上传操作
if("jpg".equals(fileSuffix) || "png".equals(fileSuffix)) {
//生成新图片名
imgName = FileUploadUtil.getImgNewName(fileSuffix);
FileUploadUtil.saveFile(file, savePath, imgName);
}
}
}
int d = service.updateGoodsImgById(imgName, Integer.parseInt(req.getParameter("id")));
if(d>0) {
JSONResult ok = JSONResult.ok(imgName);
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
case "toGoodsUpdatePage":toGoodsUpdatePage(req,resp);break;
case "updateGoods":updateGoods(req,resp);break;
case "upGoodsImage":upGoodsImage(req,resp);break;
case "fastbuy":sendOrder(req,resp);break;
}
}
public void sendOrder(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
public void getGoodsList(HttpServletRequest req,HttpServletResponse resp) {
List allGoods = service.getAllGoods();
req.setAttribute("goodsList", allGoods);
try {
req.getRequestDispatcher("/backstage/tgls/goodsManage/goods_list.jsp").forward(req, resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
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
resp.setContentType("text/html;charset=utf-8");
Orders orders = new Orders();
orders.setId(Integer.parseInt(req.getParameter("id")));
orders.setNumber(req.getParameter("number"));
orders.setUser(req.getParameter("user"));
orders.setTime(req.getParameter("time"));
orders.setName(req.getParameter("name"));
orders.setSex(req.getParameter("sex"));
* 修改密码
* @throws IOException
*/
public void modifyPassword(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 password = req.getParameter("newPassword");
User user =(User) req.getSession().getAttribute("user");
int id = user.getId();
int d = service.updatePasswordById(id, password);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
public void addGoods(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");
FileUploadUtil upFile = new FileUploadUtil();
ServletContext servletContext = req.getSession().getServletContext();
List items= upFile.getRequsetFileItems(req,servletContext);
//保存所有用户提交的 表单数据 的map
Map formData = new HashMap<>();
String savePath = new File(getServletContext().getRealPath("/")).getParentFile().getParentFile().getPath()+"/imgs";
try {
if(!"admin".equals(userRole)) {
JSONResult errorMsg = JSONResult.errorMsg("暂无登录权限");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}else {
//2、获取用户数据 进行用户名和密码验证
User user = service.getUserByNameAndPassword(userName, password);
if(user!=null) {
//将用户数据保存到session 作用域中，方便在后续的操作中使用用户数据
req.getSession().setAttribute("user", user);
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
// 将错误信息封装在结果集中
JSONResult result = JSONResult.errorMsg("用户名或密码错误，请重试");
//以json的形式返回给前端
resp.getWriter().println(JsonUtil.javaObjectToJson(result));
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 检查旧密码是否正确 ，在修改密码操作时使用
