Java毕业设计实战之图片展览馆管理系统的实现
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2022-03-04 11:44:44
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：springbo...
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：
springboot+ springmvc + jpa+ jsp + html+ javascript + jquery + ajax + maven等等
订单服务：
@webservlet("/order/orderservlet")
public class orderservlet extends httpservlet {
private orderservice service = new orderserviceimpl();
private clientserviceimpl clientservice=new clientserviceimpl();
@override
protected void doget(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
req.setcharacterencoding("utf-8");
resp.setcontenttype("text/html;charset=utf-8");
string op = req.getparameter("op");// 得到传过来的请求
// 生成订单
if (op.equals("genorder")) {
genorder(req, resp);
}
// 查看订单
if (op.equals("findallorders")) {
findallorders(req, resp);
}
// 管理员查看订单
if (op.equals("findorders")) {
findorders(req, resp);
}
// 发货
if (op.equals("fahuo")) {
fahuo(req, resp);
}
//删除订单
if(op.equals("deletes")) {
deletes(req,resp);
}
}
private void deletes(httpservletrequest req, httpservletresponse resp) throws ioexception {
string ordernumber = req.getparameter("ordernum");
order findorderbynum = service.findorderbynum(ordernumber);
if(findorderbynum.getitems().size()!=0) {
resp.getwriter().print("<script>alert('该订单下有订单子项不可删除,请先删除订单子项!')</script>");
resp.getwriter().print("<script>location.href='../admin/managerorder.jsp'</script>");
return;
}
try {
service.deletebynumber(ordernumber);
resp.getwriter().print("<script>alert('删除成功!')</script>");
resp.sendredirect("../admin/managerorder.jsp");
}catch (exception e) {
resp.getwriter().print("<script>alert('该订单下有订单子项不可删除,请先删除订单子项!')</script>");
return;
}
}
private void fahuo(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string ordernum = req.getparameter("ordernum");
service.fahuo(ordernum);
list<order> orders = service.findorders();
httpsession session = req.getsession();
session.setattribute("orders", orders);
system.out.println(orders);
resp.sendredirect(req.getcontextpath() + "/admin/managerorder.jsp");
}
private void findorders(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<order> orders = service.findorders();
httpsession session = req.getsession();
session.setattribute("orders", orders);
req.getrequestdispatcher("/admin/managerorder.jsp").forward(req, resp);
}
private void findallorders(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
httpsession session = req.getsession();
user user = (user) session.getattribute("user");
list<order> orders = service.finduserorders(user);
req.setattribute("orders", orders);
req.getrequestdispatcher("/person/personorder.jsp").forward(req, resp);
}
private void genorder(httpservletrequest req, httpservletresponse resp) throws ioexception, servletexception {
// 取出购物车信息
// 取出购物项信息
httpsession session = req.getsession();
cart cart = (cart) session.getattribute("cart");
user user = (user) session.getattribute("user");
if (cart == null) {
session.setattribute("message", "会话已经结束！");
req.getrequestdispatcher("../message.jsp").forward(req, resp);
return;
}
//先判断库存够不够！
book book = cart.getbook();
string book_id = book.getbook_id();
book findbookbyid = clientservice.findbookbyid(book_id);
if(findbookbyid.getbook_kunumber()-cart.gettotalquantity()<0) {
session.setattribute("message", "库存不足,无法购买！");
session.removeattribute("cart");
req.getrequestdispatcher("../message.jsp").forward(req, resp);
return;
}
order order = new order();
order.settime(new simpledateformat("yyyy-mm-dd hh:mm:ss").format(new date()));
string ordernum = genordernum();
order.setordernum(ordernum);
order.setquantity(cart.gettotalquantity());
order.setmoney(cart.gettotalmoney());
order.setuser(user);
// 订单项
list<orderitem> oitems = new arraylist<orderitem>();
for (map.entry<string, cartitem> me : cart.getitmes().entryset()) {
cartitem citem = me.getvalue();
orderitem oitem = new orderitem();
oitem.setid(genordernum());
oitem.setbook(citem.getbook());
oitem.setprice(citem.getmoney());
oitem.setquantity(citem.getquantity());
oitem.setordernum(ordernum);
oitems.add(oitem);
}
// 建立订单项和订单的关系
order.setitems(oitems);
service.genorder(order);
req.setattribute("order", order);
req.getsession().removeattribute("cart");
req.removeattribute("cart");
req.getrequestdispatcher("/order.jsp").forward(req, resp);
}
// 生成订单号
private string genordernum() {
date now = new date();
dateformat df = new simpledateformat("yyyymmdd");
string s1 = df.format(now);
return s1 + system.nanotime();
}
@override
protected void dopost(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
doget(req, resp);
}
}
管理员登录服务：
@webservlet("/admin/managerservlet")
public class managerservlet extends httpservlet {
private managerservice service = new managerserviceimpl();
@override
protected void doget(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
req.setcharacterencoding("utf-8");
resp.setcontenttype("text/html;charset=utf-8");
string op = req.getparameter("op");// 得到传过来的请求
// 管理员登陆
if (op.equals("login")) {
login(req, resp);
}
// 修改管理员资料
if (op.equals("managerinformation")) {
managerinformation(req, resp);
}
// 修改管理员登录密码
if (op.equals("managerpassword")) {
managerpassword(req, resp);
}
// 注销
if (op.equals("layout")) {
layout(req, resp);
}
// 添加书籍前先获取所有分类
if (op.equals("addbookui")) {
addbookui(req, resp);
}
// 添加书籍
if (op.equals("addbook")) {
try {
addbook(req, resp);
} catch (fileuploadexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
}
// 添加书籍分类
if (op.equals("addcategory")) {
addcategory(req, resp);
}
// 文学艺术类书籍列表
if (op.equals("category")) {
getcategorybook(req, resp);
}
// 编辑书籍信息前获取书籍的信息回显
if (op.equals("editbookui")) {
editbookui(req, resp);
}
// 编辑书籍
if (op.equals("editbook")) {
try {
editbook(req, resp);
} catch (fileuploadexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
}
// 删除书籍
if (op.equals("delbook")) {
delbook(req, resp);
}
// 获取书籍分类列表
if (op.equals("categorylist")) {
categorylist(req, resp);
}
// 获得分类信息
if (op.equals("editcategoryui")) {
editcategoryui(req, resp);
}
// 修改书籍分类信息
if (op.equals("editcategory")) {
editcategory(req, resp);
}
// 删除书籍分类
if (op.equals("delcategory")) {
delcategory(req, resp);
}
// 用户信息管理
if (op.equals("findusers")) {
findusers(req, resp);
}
// 添加工作人员
if (op.equals("addadmin")) {
addadmin(req, resp);
}
// 书籍销售情况
if (op.equals("sales")) {
sales(req, resp);
}
//搜索
if(op.equals("search")) {
search(req,resp);
}
}
private void search(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string name = req.getparameter("search");
if(name==null) {
name="";
}
list<book> findlistbybookname = service.findlistbybookname(name);
list<category> categorylist = service.findallcategory();// 分类
req.setattribute("currentname", name);
req.setattribute("books", findlistbybookname);
req.setattribute("categorylist", categorylist);
req.getrequestdispatcher("/admin/bookslist.jsp").forward(req, resp);
}
private void sales(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<book> sales = service.sales();
req.setattribute("sales", sales);
req.getrequestdispatcher("/admin/sales.jsp").forward(req, resp);
}
private void addadmin(httpservletrequest req, httpservletresponse resp) throws ioexception {
string username = req.getparameter("username");
string password = req.getparameter("password");
string name = req.getparameter("name");
string sex = req.getparameter("sex");
string tel = req.getparameter("tel");
administrator admin = new administrator(username, password, name, sex, tel);
service.addadmin(admin);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>添加成功！</div>");
}
private void findusers(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<user> list = service.findusers();
httpsession session = req.getsession();
session.setattribute("users", list);
req.getrequestdispatcher("/admin/managerusers.jsp").forward(req, resp);
}
private void login(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string username = req.getparameter("username");
string password = req.getparameter("password");
if(username==null || username=="") {
req.setattribute("message", "请填写用户名");
req.getrequestdispatcher("/admin/404.jsp").forward(req, resp);
return;
}
if(password==null || password=="") {
req.setattribute("message", "请填写密码");
req.getrequestdispatcher("/admin/404.jsp").forward(req, resp);
return;
}
httpsession session = req.getsession();
administrator admin = service.login(username, password);
if (admin.getusername() != null && admin.getusername() != "") {
req.setattribute("message", "登陆成功");
session.setattribute("admin", admin);
req.getrequestdispatcher("/admin/message.jsp").forward(req, resp);
} else {
req.setattribute("message", "账号或密码错误!");
req.getrequestdispatcher("/admin/404.jsp").forward(req, resp);
}
}
private void managerinformation(httpservletrequest req, httpservletresponse resp) throws ioexception {
string username = req.getparameter("username");
string name = req.getparameter("name");
string sex = req.getparameter("sex");
string tel = req.getparameter("tel");
service.managerinformation(username, name, sex, tel);
httpsession session = req.getsession();
administrator admin = (administrator) session.getattribute("admin");
admin.setname(name);
admin.setsex(sex);
admin.settel(tel);
session.setattribute("admin", admin);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>修改成功！</div>");
}
//修改管理员密码
private void managerpassword(httpservletrequest req, httpservletresponse resp) throws ioexception {
string username = req.getparameter("username");
string password = req.getparameter("password");
string repassword = req.getparameter("repassword");
string oldpassword = req.getparameter("oldpassword");
if(!password.equals(repassword)) {
resp.getwriter().print("<script>alert('两次密码不一致')</script>");
return;
}
administrator admin = service.findadminbyusername(username);
if(!admin.getpassword().equals(oldpassword)) {
resp.getwriter().print("<script>alert('旧密码填写错误!')</script>");
return;
}
service.managerpassword(username, password);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>修改成功！</div>");
}
private void layout(httpservletrequest req, httpservletresponse resp) {
try {
httpsession session = req.getsession();
session.removeattribute("admin");
resp.sendredirect("../admin/managerlogin.jsp");
} catch (exception e) {
e.printstacktrace();
}
}
private void addbookui(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<category> categorys = service.findallcategory();
req.setattribute("cs", categorys);
req.getrequestdispatcher("/admin/addbook.jsp").forward(req, resp);
}
private void addbook(httpservletrequest req, httpservletresponse resp) throws fileuploadexception, ioexception {
// 判断表单是不是multipart/form-data类型
boolean ismultipart = servletfileupload.ismultipartcontent(req);
if (!ismultipart) {
throw new runtimeexception("表单上传类型有误！！");
}
// 创建工厂用来 解析请求内容
diskfileitemfactory factory = new diskfileitemfactory();
// 构建核心类对象
servletfileupload sfu = new servletfileupload(factory);
list<fileitem> items = new arraylist<fileitem>();
items = sfu.parserequest(req);
book book = new book();
for (fileitem item : items) {
if (item.isformfield()) {
// 普通字段：把数据分装到book对象中
processformfield(item, req, book);
} else {
// 上传字段：上传
processuplodfiled(item, req, book);
}
}
// 把书籍信息保存到数据库中
service.addbook(book);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>添加成功！</div>");
}
// 处理文件上传
private void processuplodfiled(fileitem item, httpservletrequest req, book book) {
try {
// 存放路径：不要放在web-inf中
// 01.获取存放文件的真实目录
// string dirimages = getservletcontext().getrealpath("/images");
string dirimages =req.getservletcontext().getrealpath("/")+"images/";
// string dirimages = getservletcontext().getrealpath("/img");
// 02. 通过io存文件
// 03. 生成文件名 （用户上传图片， 图片名可能重复）
string fieldname = item.getfieldname();// 输入框的name值
string name = item.getname();
string filetype = name.substring(name.lastindexof(".") + 1);
string filename = uuid.randomuuid().tostring();// 生成用不重复的文件名
// 生成文件夹名
date time = new date();
simpledateformat simpledateformat = new simpledateformat("yyyy-mm-dd");
string strtime = simpledateformat.format(time);
// path属性filename
string path = strtime +file.separator + "books";// 存放到book对象中的路径
// string path = "books";// 存放到book对象中
string filename = filename + "." + filetype;
// filedir：图片最终存在于filedir
file filedir = new file(dirimages, path + file.separator + filename);
// inputstream inputstream = item.getinputstream(); 从请求 对象中 通过流的方式
// 把 上传的文件加载到 内存中 构建输出流
file parentdir = new file(dirimages, path);// 父目录
if (!parentdir.exists()) {
parentdir.mkdirs();
}
book.setfilename(filename);
book.setpath(path);
inputstream inputstream = item.getinputstream();
fileoutputstream fos = new fileoutputstream(filedir);
int len = 0;
while ((len = inputstream.read()) != -1) {
fos.write(len);
}
} catch (ioexception e) {
e.printstacktrace();
}
}
// 把fielditem中的数据封装到book中
private void processformfield(fileitem item, httpservletrequest req, book book) {
try {
// item每一个item对象代表一个输入框
// 01. 获取input输入框的 name 的值 根据规范 输入框 的name的取值， 与 javabean 中的 属性名一致
string inputname = item.getfieldname();
string inputvalue = item.getstring("utf-8");
if (inputname.equals("categoryid")) {// 分类单独处理
// 获取到选择的分类的id，根据这个id取到分类的信息
string categoryid = item.getstring();
system.out.println("categoryid=" + categoryid);
category category = service.findcategorybyid(categoryid);
system.out.println(category);
book.setcategory(category);
} else {
beanutils.setproperty(book, inputname, inputvalue);
}
} catch (exception e) {
e.printstacktrace();
}
}
// 添加书籍分类
private void addcategory(httpservletrequest req, httpservletresponse resp) {
try {
category category = new category();
beanutils.populate(category, req.getparametermap());
string categoryname = category.getcategory_name();
if(stringutils.isnullorempty(categoryname)) {
resp.getwriter().print("<script>alert('请填写分类名称')</script>");
resp.getwriter().print("<script>location.href='../admin/addcategory.jsp'</script>");
return;
}
service.addcategory(category);// 调用添加方法
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>添加成功！</div>");
} catch (exception e) {
e.printstacktrace();
}
}
private void getcategorybook(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<book> books = service.getcategorybook(req.getparameter("cid"));// 文学艺术类书籍
list<category> categorylist = service.findallcategory();// 分类
req.setattribute("books", books);
req.setattribute("categorylist", categorylist);
req.setattribute("currentname", "");
req.getrequestdispatcher("/admin/bookslist.jsp").forward(req, resp);
}
private void editbookui(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string book_id = req.getparameter("book_id");
book book = findbookbyid(book_id);
list<category> category = service.findallcategory();
hashmap map = new hashmap();
map.put("book", book);
map.put("category", category);
req.setattribute("map", map);
req.getrequestdispatcher("/admin/editbook.jsp").forward(req, resp);
}
private void editbook(httpservletrequest req, httpservletresponse resp) throws fileuploadexception, ioexception {
string book_id = req.getparameter("book_id");
string book_name = req.getparameter("book_name");
string book_author = req.getparameter("book_author");
string book_press = req.getparameter("book_press");
string book_desc = req.getparameter("book_desc");
double book_price = double.parsedouble(req.getparameter("book_price"));
string book_kunumber = req.getparameter("book_kunumber");
string categoryid = req.getparameter("categoryid");
category findcategorybyid = service.findcategorybyid(categoryid);
service.editbook(book_id, book_name, book_author, book_press, book_desc, book_price, book_kunumber,findcategorybyid);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>修改成功！</div>");
}
private void delbook(httpservletrequest req, httpservletresponse resp) throws ioexception {
string book_id = req.getparameter("book_id");
service.delbook(book_id);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>删除成功！</div>");
}
private void categorylist(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<category> categorylist = service.findallcategory();
req.setattribute("categorylist", categorylist);
req.getrequestdispatcher("/admin/categoryslist.jsp").forward(req, resp);
}
private void editcategoryui(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
category category = service.findcategorybyid(req.getparameter("category_id"));
req.setattribute("category", category);
req.getrequestdispatcher("/admin/editcategory.jsp").forward(req, resp);
}
private void editcategory(httpservletrequest req, httpservletresponse resp) throws ioexception {
category category = new category(req.getparameter("category_id"), req.getparameter("category_name"),
req.getparameter("category_desc"));
string categoryname = category.getcategory_name();
if(stringutils.isnullorempty(categoryname)) {
resp.getwriter().print("<script>alert('请填写分类名称')</script>");
resp.getwriter().print("<script>location.href='../admin/editcategory.jsp'</script>");
return;
}
service.editcategory(category);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>修改成功！</div>");
}
private void delcategory(httpservletrequest req, httpservletresponse resp) throws ioexception {
string category_id = req.getparameter("category_id");
service.delcategory(category_id);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>删除成功！</div>");
}
// 通过书籍id找到书籍信息
private book findbookbyid(string book_id) {
return service.findbookbyid(book_id);
}
@override
protected void dopost(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
doget(req, resp);
}
}
收藏夹业务处理：
@webservlet("/client/clientservlet")
public class clientservlet extends httpservlet {
private clientservice service = new clientserviceimpl();
private managerservice managerservice = new managerserviceimpl();
@override
protected void doget(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
req.setcharacterencoding("utf-8");
resp.setcontenttype("text/html;charset=utf-8");
string op = req.getparameter("op");// 得到传过来的请求
if (op != null && !op.equals("")) {
// 登录
if (op.equals("login")) {
login(req, resp);
}
// 注销
if (op.equals("layout")) {
layout(req, resp);
}
// 注册
if (op.equals("register")) {
register(req, resp);
}
// 文学艺术类书籍列表
if (op.equals("category")) {
getcategorybook(req, resp);
}
// 个人信息修改
if (op.equals("personinformation")) {
personinformation(req, resp);
}
// 修改密码
if (op.equals("personpassword")) {
personpassword(req, resp);
}
// 搜索框
if (op.equals("search")) {
search(req, resp);
}
// 详情页面
if (op.equals("particulars")) {
particulars(req, resp);
}
// 添加购物车
if (op.equals("addcart")) {
addcart(req, resp);
}
// 删除购物车中的购物项
if (op.equals("delitem")) {
delitem(req, resp);
}
// 修改购物项数量
if (op.equals("changenum")) {
changenum(req, resp);
}
// 添加收藏夹
if (op.equals("addfavorite")) {
addfavorite(req, resp);
}
// 显示收藏夹
if (op.equals("showfavorite")) {
showfavorite(req, resp);
}
// 删除收藏夹
if (op.equals("delfavorite")) {
delfavorite(req, resp);
}
// 删除收藏夹
if (op.equals("buynow")) {
bunow(req, resp);
}
}
}
private void delfavorite(httpservletrequest req, httpservletresponse resp) throws ioexception, servletexception {
string book_id = req.getparameter("book_id");
service.delfavorite(book_id);
httpsession session = req.getsession();
list<favorite> lists = (list<favorite>) session.getattribute("favorite");
iterator<favorite> iterator = lists.iterator();
while (iterator.hasnext()) {
favorite favorite = iterator.next();
if (book_id.equals(favorite.getbook().getbook_id())) {
iterator.remove();// 使用迭代器的删除方法删除
}
}
resp.sendredirect(req.getcontextpath() + "/favorite.jsp");
}
private void showfavorite(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
httpsession session = req.getsession();
user user = (user) session.getattribute("user");
list<favorite> favorites = service.findfavoritebyuserid(user);
session.setattribute("favorite", favorites);
req.getrequestdispatcher("/favorite.jsp").forward(req, resp);
}
private void addfavorite(httpservletrequest req, httpservletresponse resp) throws ioexception {
httpsession session = req.getsession();
user user = (user) session.getattribute("user");
string user_id = user.getid();
string book_id = req.getparameter("book_id");
boolean isexit = service.findfavorite(user_id, book_id);
if (isexit == false) {
service.addfavorite(user_id, book_id);
}
}
private void changenum(httpservletrequest req, httpservletresponse resp) throws ioexception {
string num = req.getparameter("num");
string book_id = req.getparameter("book_id");
// 取出购物车
cart cart = (cart) req.getsession().getattribute("cart");
cartitem item = cart.getitmes().get(book_id);
item.setquantity(integer.parseint(num));
resp.sendredirect(req.getcontextpath() + "/showcart.jsp");
}
private void login(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string username = req.getparameter("username");
string password = req.getparameter("password");
httpsession session = req.getsession();
user user = service.login(username, password);
if (user.getusername() != null && user.getusername() != "") {
req.setattribute("message", "登陆成功");
session.setattribute("user", user);
req.getrequestdispatcher("/message.jsp").forward(req, resp);
} else {
req.setattribute("message", "用户名或密码错误，请重新登录");
req.getrequestdispatcher("/message.jsp").forward(req, resp);
}
}
private void layout(httpservletrequest req, httpservletresponse resp) {
try {
httpsession session = req.getsession();
session.removeattribute("user");// 获取session对象，从session中移除登陆信息
resp.sendredirect("../client/clientservlet?op=category");
} catch (exception e) {
e.printstacktrace();
}
}
private void register(httpservletrequest req, httpservletresponse resp) {
try {
string username = req.getparameter("username");
string password = req.getparameter("password");
string name = req.getparameter("name");
string sex = req.getparameter("sex");
string tel = req.getparameter("tel");
string address = req.getparameter("address");
boolean isexist = false;// 判断是否存在该用户
if (!username.equals("") && !password.equals("")) {
isexist = service.register(username, password, name, sex, tel, address);
if (isexist == true) {
resp.getwriter().print("<script>alert('该用户已经注册，请直接登录')</script>");
resp.getwriter().print("<script>location.href='../client/clientservlet?op=category'</script>");
} else {
resp.getwriter().write("注册成功!");
resp.getwriter().print("<script>location.href='../client/clientservlet?op=category'</script>");
}
}else {
resp.getwriter().print("<script>alert('请填写账号或密码')</script>");
resp.getwriter().print("<script>location.href='../client/clientservlet?op=category'</script>");
}
} catch (exception e) {
e.printstacktrace();
}
}
private void getcategorybook(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
list<book> books = service.getcategorybook(req.getparameter("cid"));// 文学艺术类书籍
req.setattribute("books", books);
list<category> categorylist= managerservice.findallcategory();
req.setattribute("categorylist", categorylist);
req.getrequestdispatcher("/showbook.jsp").forward(req, resp);
}
private void personinformation(httpservletrequest req, httpservletresponse resp)
throws servletexception, ioexception {
string username = req.getparameter("username");
string name = req.getparameter("name");
string sex = req.getparameter("sex");
string tel = req.getparameter("tel");
string address = req.getparameter("address");
service.personinformation(username, name, sex, tel, address);
user user = (user) req.getsession().getattribute("user");
user.setusername(username);
user.setname(name);
user.setsex(sex);
user.settel(tel);
user.setaddress(address);
req.getsession().setattribute("user", user);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>修改成功！</div>");
}
private void personpassword(httpservletrequest req, httpservletresponse resp) throws ioexception {
string username = req.getparameter("username");
string password = req.getparameter("password");
string repassword = req.getparameter("repassword");
string oldpassword = req.getparameter("oldpassword");
if(!repassword.equals(password)) {
resp.getwriter().print("<script>alert('两次密码不一致')</script>");
}
user user = service.finduserbyusername(username);
if(user==null) {
resp.getwriter().print("<script>alert('会话失效或未登录,请重新登录！')</script>");
return;
}
if(!user.getpassword().equals(oldpassword)) {
resp.getwriter().print("<script>alert('旧密码输入错误!')</script>");
return;
}
service.personpassword(password, username);
resp.getwriter().write("<div style='text-align: center;margin-top: 260px'><img src='" + req.getcontextpath()
+ "/img/duigou.png'/>修改成功！</div>");
}
private void search(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string search = req.getparameter("search");
list<book> searchmessage = service.search(search);
req.setattribute("books", searchmessage);
req.setattribute("name", search==null?"":search);
req.getrequestdispatcher("/showbook.jsp").forward(req, resp);
}
private void particulars(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
string book_id = req.getparameter("book_id");
book book = findbookbyid(book_id);
req.setattribute("book", book);
req.getrequestdispatcher("/particulars.jsp").forward(req, resp);
}
// 通过书籍id找到书籍信息
private book findbookbyid(string book_id) {
book book = service.findbookbyid(book_id);
return book;
}
private void addcart(httpservletrequest req, httpservletresponse resp) throws ioexception, servletexception {
string book_id = req.getparameter("book_id");
book book = findbookbyid(book_id);
httpsession session = req.getsession();
cart cart = (cart) session.getattribute("cart");
if (cart == null) {
cart = new cart();
cart.addbook(book);
cart.setbook(book);
session.setattribute("cart", cart);
}else {
session.setattribute("message", "购物车里有商品,请支付之后再来添加!");
req.getrequestdispatcher("../message.jsp").forward(req, resp);
return;
}
req.getrequestdispatcher("../showcart.jsp").forward(req, resp);
}
private void delitem(httpservletrequest req, httpservletresponse resp) throws ioexception {
string book_id = req.getparameter("book_id");
cart cart = (cart) req.getsession().getattribute("cart");
cart.getitmes().remove(book_id);
req.getsession().removeattribute("cart");
resp.sendredirect(req.getcontextpath() + "/showcart.jsp");
}
private void bunow(httpservletrequest req, httpservletresponse resp) throws ioexception, servletexception {
cart cart1 = (cart) req.getsession().getattribute("cart");
if(cart1==null) {
cart cart = new cart();
string book_id = req.getparameter("book_id");
book book = findbookbyid(book_id);
cart.addbook(book);
cart.setbook(book);
req.getsession().setattribute("cart", cart);
}else {
req.getsession().setattribute("message", "购物车里有商品,请支付之后再来添加!");
req.getrequestdispatcher("../message.jsp").forward(req, resp);
return;
}
req.getrequestdispatcher("../showcart.jsp").forward(req, resp);
}
@override
protected void dopost(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {
doget(req, resp);
}
}
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