——————————DescriptionStart——————————
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
前台用户：登录、注册、查询商品、购物车、下单、个人中心等
后台管理员：管理订单、客户、商品、商品类别等
普通用户（前台）
管理员（后台）
技术框架
JSP Servlet JDBC MySQL C3P0 Bootstrap MVC Tomcat……
基于javaweb的JSP+Servlet甜品蛋糕店(前台、后台)(java+jsp+servlet+jdbc+bootstrap)
——————————CodeStart——————————
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@WebServlet(name = "goods_search",urlPatterns = "/goods_search")
public class GoodsSearchServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
private GoodsService gService = new GoodsService();
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String keyword = request.getParameter("keyword");
int pageNumber = 1;
if(request.getParameter("pageNumber") != null) {
try {
pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ;
}
catch (Exception e)
{
}
}
if(pageNumber<=0)
{
pageNumber=1;
}
Page p =gService.getSearchGoodsPage(keyword,pageNumber);
if(p.getTotalPage()==0)
{
p.setTotalPage(1);
p.setPageNumber(1);
}
else {
if(pageNumber>=p.getTotalPage()+1)
{
p =gService.getSearchGoodsPage(keyword,pageNumber);
}
}
request.setAttribute("p", p);
request.setAttribute("keyword", URLEncoder.encode(keyword,"utf-8"));
request.getRequestDispatcher("/goods_search.jsp").forward(request, response);
}
}
package com.demo.servlet;
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@WebServlet(name = "user_register",urlPatterns = "/user_rigister")
public class UserRegisterServlet extends HttpServlet {
private UserService uService = new UserService();
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
User user = new User();
try {
BeanUtils.copyProperties(user, request.getParameterMap());
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
if(uService.register(user)) {
request.setAttribute("msg", "注册成功，请登录！");
request.getRequestDispatcher("user_login.jsp").forward(request, response);
}else {
request.setAttribute("msg", "用户名或邮箱重复，请重新填写！");
request.getRequestDispatcher("user_register.jsp").forward(request, response);
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
package com.demo.servlet;
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| int type=0;
for(FileItem item:list) {
if(item.isFormField()) {
String fieldName = item.getFieldName();
if("id".equals(fieldName)){
g.setId(Integer.parseInt(item.getString("utf-8")));
}else if("name".equals(fieldName)){
g.setName(item.getString("utf-8"));
}else if("price".equals(fieldName)){
g.setPrice(Float.parseFloat(item.getString("utf-8")));
}else if("intro".equals(fieldName)){
g.setIntro(item.getString("utf-8"));
}else if("cover".equals(fieldName)){
g.setCover(item.getString("utf-8"));
}else if("image1".equals(fieldName)){
g.setImage1(item.getString("utf-8"));
}else if("image2".equals(fieldName)){
g.setImage2(item.getString("utf-8"));
}else if("stock".equals(fieldName)){
g.setStock(Integer.parseInt(item.getString("utf-8")));
}else if("typeid".equals(fieldName)){
g.setTypeid(Integer.parseInt(item.getString("utf-8")));
}else if("pageNumber".equals(fieldName)){
pageNumber=Integer.parseInt(item.getString("utf-8"));
}else if("type".equals(fieldName)){
type = Integer.parseInt(item.getString("utf-8"));
}
}else {
if(item.getInputStream().available()<=0)continue;
String fileName = item.getName();
fileName = fileName.substring(fileName.lastIndexOf("."));
fileName = "/"+new Date().getTime()+fileName;
String path = this.getServletContext().getRealPath("/picture")+fileName;
InputStream in = item.getInputStream();
FileOutputStream out = new FileOutputStream(path);
byte[] buffer = new byte[1024];
int len=0;
while( (len=in.read(buffer))>0 ) {
out.write(buffer);
}
in.close();
out.close();
String fieldName = item.getFieldName();
if("cover".equals(fieldName)){
g.setCover("/picture"+fileName);
} else if("image1".equals(fieldName)){
g.setImage1("/picture"+fileName);
} else if("image2".equals(fieldName)){
g.setImage2("/picture"+fileName);
}
}
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@WebServlet(name = "admin_user_list",urlPatterns = "/admin/user_list")
public class AdminUserListServlet extends HttpServlet {
private UserService uService = new UserService();
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
int pageNumber = 1;
if(request.getParameter("pageNumber") != null) {
try {
pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ;
}
catch (Exception e)
{
}
}
if(pageNumber<=0)
pageNumber=1;
Page p = uService.getUserPage(pageNumber);
if(p.getTotalPage()==0)
{
p.setTotalPage(1);
p.setPageNumber(1);
}
else {
if(pageNumber>=p.getTotalPage()+1)
{
p = uService.getUserPage(pageNumber);
}
}
request.setAttribute("p", p);
request.getRequestDispatcher("/admin/user_list.jsp").forward(request, response);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doGet(req, resp);
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| g.setImage2(item.getString("utf-8"));
}else if("stock".equals(fieldName)){
g.setStock(Integer.parseInt(item.getString("utf-8")));
}else if("typeid".equals(fieldName)){
g.setTypeid(Integer.parseInt(item.getString("utf-8")));
}else if("pageNumber".equals(fieldName)){
pageNumber=Integer.parseInt(item.getString("utf-8"));
}else if("type".equals(fieldName)){
type = Integer.parseInt(item.getString("utf-8"));
}
}else {
if(item.getInputStream().available()<=0)continue;
String fileName = item.getName();
fileName = fileName.substring(fileName.lastIndexOf("."));
fileName = "/"+new Date().getTime()+fileName;
String path = this.getServletContext().getRealPath("/picture")+fileName;
InputStream in = item.getInputStream();
FileOutputStream out = new FileOutputStream(path);
byte[] buffer = new byte[1024];
int len=0;
while( (len=in.read(buffer))>0 ) {
out.write(buffer);
}
in.close();
out.close();
String fieldName = item.getFieldName();
if("cover".equals(fieldName)){
g.setCover("/picture"+fileName);
} else if("image1".equals(fieldName)){
g.setImage1("/picture"+fileName);
} else if("image2".equals(fieldName)){
g.setImage2("/picture"+fileName);
}
}
}
gService.update(g);
request.getRequestDispatcher("/admin/goods_list?pageNumber="+pageNumber+"&type="+type).forward(request, response);
} catch (FileUploadException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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| }
}
package com.demo.servlet;
@WebServlet(name = "admin_goods_list",urlPatterns = "/admin/goods_list")
public class AdminGoodsListServlet extends HttpServlet {
private GoodsService gService = new GoodsService();
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
int type = 0;
if(request.getParameter("type") != null) {
type=Integer.parseInt(request.getParameter("type") ) ;
}
int pageNumber = 1;
if(request.getParameter("pageNumber") != null) {
try {
pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ;
}
catch (Exception e)
{
}
}
if(pageNumber<=0)
pageNumber=1;
Page p = gService.getGoodsRecommendPage(type, pageNumber);
if(p.getTotalPage()==0)
{
p.setTotalPage(1);
p.setPageNumber(1);
}
else {
if(pageNumber>=p.getTotalPage()+1)
{
p = gService.getGoodsRecommendPage(type, pageNumber);
}
}
request.setAttribute("p", p);
request.setAttribute("type", type);
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——————————PayStart——————————
项目链接：
https://javayms.github.io?id=311722310805102ak
https://javayms.pages.dev?id=311722310805102ak