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步骤 2 : 模仿和排错 步骤 3 : 页面效果 步骤 4 : imgAndInfo.jsp 步骤 5 : ForeServlet.checkLogin() 步骤 6 : modal.jsp 步骤 7 : ForeServlet.loginAjax()
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完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
增值内容，点击购买
使用爬虫已经被系统记录，请勿使用爬虫，增大封号风险。 如果是误封 ，请联系站长，谢谢
增值内容，请先登录
完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
增值内容，点击购买
使用爬虫已经被系统记录，请勿使用爬虫，增大封号风险。 如果是误封 ，请联系站长，谢谢
增值内容，请先登录
完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
增值内容，点击购买
使用爬虫已经被系统记录，请勿使用爬虫，增大封号风险。 如果是误封 ，请联系站长，谢谢
增值内容，请先登录
完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
增值内容，点击购买
使用爬虫已经被系统记录，请勿使用爬虫，增大封号风险。 如果是误封 ，请联系站长，谢谢
$(".buyLink").click(function(){
var page = "forecheckLogin";
$.get(
page,
function(result){
if("success"==result){
。。。略
}
else{
$("#loginModal").modal('show');
}
}
);
return false;
});
$(".addCartLink").click(function(){
var page = "forecheckLogin";
$.get(
page,
function(result){
if("success"==result){
。。。略
}
else{
$("#loginModal").modal('show');
}
}
);
return false;
});
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<script>
$(function(){
var stock = ${p.stock};
$(".productNumberSetting").keyup(function(){
var num= $(".productNumberSetting").val();
num = parseInt(num);
if(isNaN(num))
num= 1;
if(num<=0)
num = 1;
if(num>stock)
num = stock;
$(".productNumberSetting").val(num);
});
$(".increaseNumber").click(function(){
var num= $(".productNumberSetting").val();
num++;
if(num>stock)
num = stock;
$(".productNumberSetting").val(num);
});
$(".decreaseNumber").click(function(){
var num= $(".productNumberSetting").val();
--num;
if(num<=0)
num=1;
$(".productNumberSetting").val(num);
});
$(".addCartLink").click(function(){
var page = "forecheckLogin";
$.get(
page,
function(result){
if("success"==result){
var pid = ${p.id};
var num= $(".productNumberSetting").val();
var addCartpage = "foreaddCart";
$.get(
addCartpage,
{"pid":pid,"num":num},
function(result){
if("success"==result){
$(".addCartButton").html("已加入购物车");
$(".addCartButton").attr("disabled","disabled");
$(".addCartButton").css("background-color","lightgray")
$(".addCartButton").css("border-color","lightgray")
$(".addCartButton").css("color","black")
}
else{
}
}
);
}
else{
$("#loginModal").modal('show');
}
}
);
return false;
});
$(".buyLink").click(function(){
var page = "forecheckLogin";
$.get(
page,
function(result){
if("success"==result){
var num = $(".productNumberSetting").val();
location.href= $(".buyLink").attr("href")+"&num="+num;
}
else{
$("#loginModal").modal('show');
}
}
);
return false;
});
$("button.loginSubmitButton").click(function(){
var name = $("#name").val();
var password = $("#password").val();
if(0==name.length||0==password.length){
$("span.errorMessage").html("请输入账号密码");
$("div.loginErrorMessageDiv").show();
return false;
}
var page = "foreloginAjax";
$.get(
page,
{"name":name,"password":password},
function(result){
if("success"==result){
location.reload();
}
else{
$("span.errorMessage").html("账号密码错误");
$("div.loginErrorMessageDiv").show();
}
}
);
return true;
});
$("img.smallImage").mouseenter(function(){
var bigImageURL = $(this).attr("bigImageURL");
$("img.bigImg").attr("src",bigImageURL);
});
$("img.bigImg").load(
function(){
$("img.smallImage").each(function(){
var bigImageURL = $(this).attr("bigImageURL");
img = new Image();
img.src = bigImageURL;
img.onload = function(){
console.log(bigImageURL);
$("div.img4load").append($(img));
};
});
}
);
});
</script>
<div class="imgAndInfo">
<div class="imgInimgAndInfo">
<img src="img/productSingle/${p.firstProductImage.id}.jpg" class="bigImg">
<div class="smallImageDiv">
<c:forEach items="${p.productSingleImages}" var="pi">
<img src="img/productSingle_small/${pi.id}.jpg" bigImageURL="img/productSingle/${pi.id}.jpg" class="smallImage">
</c:forEach>
</div>
<div class="img4load hidden" ></div>
</div>
<div class="infoInimgAndInfo">
<div class="productTitle">
${p.name}
</div>
<div class="productSubTitle">
${p.subTitle}
</div>
<div class="productPrice">
<div class="juhuasuan">
<span class="juhuasuanBig" >聚划算</span>
<span>此商品即将参加聚划算，<span class="juhuasuanTime">1天19小时</span>后开始，</span>
</div>
<div class="productPriceDiv">
<div class="gouwujuanDiv"><img height="16px" src="img/site/gouwujuan.png">
<span> 全天猫实物商品通用</span>
</div>
<div class="originalDiv">
<span class="originalPriceDesc">价格</span>
<span class="originalPriceYuan">¥</span>
<span class="originalPrice">
<fmt:formatNumber type="number" value="${p.orignalPrice}" minFractionDigits="2"/>
</span>
</div>
<div class="promotionDiv">
<span class="promotionPriceDesc">促销价 </span>
<span class="promotionPriceYuan">¥</span>
<span class="promotionPrice">
<fmt:formatNumber type="number" value="${p.promotePrice}" minFractionDigits="2"/>
</span>
</div>
</div>
</div>
<div class="productSaleAndReviewNumber">
<div>销量 <span class="redColor boldWord"> ${p.saleCount }</span></div>
<div>累计评价 <span class="redColor boldWord"> ${p.reviewCount}</span></div>
</div>
<div class="productNumber">
<span>数量</span>
<span>
<span class="productNumberSettingSpan">
<input class="productNumberSetting" type="text" value="1">
</span>
<span class="arrow">
<a href="#nowhere" class="increaseNumber">
<span class="updown">
<img src="img/site/increase.png">
</span>
</a>
<span class="updownMiddle"> </span>
<a href="#nowhere" class="decreaseNumber">
<span class="updown">
<img src="img/site/decrease.png">
</span>
</a>
</span>
件</span>
<span>库存${p.stock}件</span>
</div>
<div class="serviceCommitment">
<span class="serviceCommitmentDesc">服务承诺</span>
<span class="serviceCommitmentLink">
<a href="#nowhere">正品保证</a>
<a href="#nowhere">极速退款</a>
<a href="#nowhere">赠运费险</a>
<a href="#nowhere">七天无理由退换</a>
</span>
</div>
<div class="buyDiv">
<a class="buyLink" href="forebuyone?pid=${p.id}"><button class="buyButton">立即购买</button></a>
<a href="#nowhere" class="addCartLink"><button class="addCartButton"><span class="glyphicon glyphicon-shopping-cart"></span>加入购物车</button></a>
</div>
</div>
<div style="clear:both"></div>
</div>
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完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
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public String checkLogin(HttpServletRequest request, HttpServletResponse response, Page page) {
User user =(User) request.getSession().getAttribute("user");
if(null!=user)
return "%success";
return "%fail";
}
package tmall.servlet;
import java.io.BufferedWriter;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.util.HtmlUtils;
import tmall.bean.Category;
import tmall.bean.Product;
import tmall.bean.ProductImage;
import tmall.bean.PropertyValue;
import tmall.bean.Review;
import tmall.bean.User;
import tmall.dao.CategoryDAO;
import tmall.dao.ProductDAO;
import tmall.dao.ProductImageDAO;
import tmall.util.Page;
public class ForeServlet extends BaseForeServlet {
public String home(HttpServletRequest request, HttpServletResponse response, Page page) {
List<Category> cs= new CategoryDAO().list();
new ProductDAO().fill(cs);
new ProductDAO().fillByRow(cs);
request.setAttribute("cs", cs);
return "home.jsp";
}
public String register(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
String password = request.getParameter("password");
name = HtmlUtils.htmlEscape(name);
System.out.println(name);
boolean exist = userDAO.isExist(name);
if(exist){
request.setAttribute("msg", "用户名已经被使用,不能使用");
return "register.jsp";
}
User user = new User();
user.setName(name);
user.setPassword(password);
System.out.println(user.getName());
System.out.println(user.getPassword());
userDAO.add(user);
return "@registerSuccess.jsp";
}
public String login(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
name = HtmlUtils.htmlEscape(name);
String password = request.getParameter("password");
User user = userDAO.get(name,password);
if(null==user){
request.setAttribute("msg", "账号密码错误");
return "login.jsp";
}
request.getSession().setAttribute("user", user);
return "@forehome";
}
public String product(HttpServletRequest request, HttpServletResponse response, Page page) {
int pid = Integer.parseInt(request.getParameter("pid"));
Product p = productDAO.get(pid);
List<ProductImage> productSingleImages = productImageDAO.list(p, ProductImageDAO.type_single);
List<ProductImage> productDetailImages = productImageDAO.list(p, ProductImageDAO.type_detail);
p.setProductSingleImages(productSingleImages);
p.setProductDetailImages(productDetailImages);
List<PropertyValue> pvs = propertyValueDAO.list(p.getId());
List<Review> reviews = reviewDAO.list(p.getId());
productDAO.setSaleAndReviewNumber(p);
request.setAttribute("reviews", reviews);
request.setAttribute("p", p);
request.setAttribute("pvs", pvs);
return "product.jsp";
}
public String logout(HttpServletRequest request, HttpServletResponse response, Page page) {
request.getSession().removeAttribute("user");
return "@forehome";
}
public String checkLogin(HttpServletRequest request, HttpServletResponse response, Page page) {
User user =(User) request.getSession().getAttribute("user");
if(null!=user)
return "%success";
return "%fail";
}
public String loginAjax(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
String password = request.getParameter("password");
PrintWriter p;
User user = userDAO.get(name,password);
if(null==user){
request.setAttribute("msg", "账号密码错误");
return "%fail";
}
request.getSession().setAttribute("user", user);
return "%success";
}
}
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完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
增值内容，点击购买
使用爬虫已经被系统记录，请勿使用爬虫，增大封号风险。 如果是误封 ，请联系站长，谢谢
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<div class="modal " id="loginModal" tabindex="-1" role="dialog" >
<div class="modal-dialog loginDivInProductPageModalDiv">
<div class="modal-content">
<div class="loginDivInProductPage">
<div class="loginErrorMessageDiv">
<div class="alert alert-danger" >
<button type="button" class="close" data-dismiss="alert" aria-label="Close"></button>
<span class="errorMessage"></span>
</div>
</div>
<div class="login_acount_text">账户登录</div>
<div class="loginInput " >
<span class="loginInputIcon ">
<span class=" glyphicon glyphicon-user"></span>
</span>
<input id="name" name="name" placeholder="手机/会员名/邮箱" type="text">
</div>
<div class="loginInput " >
<span class="loginInputIcon ">
<span class=" glyphicon glyphicon-lock"></span>
</span>
<input id="password" name="password" type="password" placeholder="密码" type="text">
</div>
<span class="text-danger">不要输入真实的天猫账号密码</span><br><br>
<div>
<a href="#nowhere">忘记登录密码</a>
<a href="register.jsp" class="pull-right">免费注册</a>
</div>
<div style="margin-top:20px">
<button class="btn btn-block redButton loginSubmitButton" type="submit">登录</button>
</div>
</div>
</div>
</div>
</div>
<div class="modal" id="deleteConfirmModal" tabindex="-1" role="dialog" >
<div class="modal-dialog deleteConfirmModalDiv">
<div class="modal-content">
<div class="modal-header">
<button data-dismiss="modal" class="close" type="button"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>
<h4 class="modal-title">确认删除？</h4>
</div>
<div class="modal-footer">
<button data-dismiss="modal" class="btn btn-default" type="button">关闭</button>
<button class="btn btn-primary deleteConfirmButton" id="submit" type="button">确认</button>
</div>
</div>
</div>
</div>
</div>
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完整的J2EE模仿天猫项目，使用J2SE、前端技术(包含所有前端jsp文件)、J2EE一整套技术栈， 从无到有涵盖全部147个知识点，475个开发步骤, 充实J2EE项目经验，为简历加上一个有吸引力的砝码.
增值内容，点击购买
使用爬虫已经被系统记录，请勿使用爬虫，增大封号风险。 如果是误封 ，请联系站长，谢谢
public String loginAjax(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
String password = request.getParameter("password");
User user = userDAO.get(name,password);
if(null==user){
return "%fail";
}
request.getSession().setAttribute("user", user);
return "%success";
}
package tmall.servlet;
import java.io.BufferedWriter;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.util.HtmlUtils;
import tmall.bean.Category;
import tmall.bean.Product;
import tmall.bean.ProductImage;
import tmall.bean.PropertyValue;
import tmall.bean.Review;
import tmall.bean.User;
import tmall.dao.CategoryDAO;
import tmall.dao.ProductDAO;
import tmall.dao.ProductImageDAO;
import tmall.util.Page;
public class ForeServlet extends BaseForeServlet {
public String home(HttpServletRequest request, HttpServletResponse response, Page page) {
List<Category> cs= new CategoryDAO().list();
new ProductDAO().fill(cs);
new ProductDAO().fillByRow(cs);
request.setAttribute("cs", cs);
return "home.jsp";
}
public String register(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
String password = request.getParameter("password");
name = HtmlUtils.htmlEscape(name);
System.out.println(name);
boolean exist = userDAO.isExist(name);
if(exist){
request.setAttribute("msg", "用户名已经被使用,不能使用");
return "register.jsp";
}
User user = new User();
user.setName(name);
user.setPassword(password);
System.out.println(user.getName());
System.out.println(user.getPassword());
userDAO.add(user);
return "@registerSuccess.jsp";
}
public String login(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
name = HtmlUtils.htmlEscape(name);
String password = request.getParameter("password");
User user = userDAO.get(name,password);
if(null==user){
request.setAttribute("msg", "账号密码错误");
return "login.jsp";
}
request.getSession().setAttribute("user", user);
return "@forehome";
}
public String product(HttpServletRequest request, HttpServletResponse response, Page page) {
int pid = Integer.parseInt(request.getParameter("pid"));
Product p = productDAO.get(pid);
List<ProductImage> productSingleImages = productImageDAO.list(p, ProductImageDAO.type_single);
List<ProductImage> productDetailImages = productImageDAO.list(p, ProductImageDAO.type_detail);
p.setProductSingleImages(productSingleImages);
p.setProductDetailImages(productDetailImages);
List<PropertyValue> pvs = propertyValueDAO.list(p.getId());
List<Review> reviews = reviewDAO.list(p.getId());
productDAO.setSaleAndReviewNumber(p);
request.setAttribute("reviews", reviews);
request.setAttribute("p", p);
request.setAttribute("pvs", pvs);
return "product.jsp";
}
public String logout(HttpServletRequest request, HttpServletResponse response, Page page) {
request.getSession().removeAttribute("user");
return "@forehome";
}
public String checkLogin(HttpServletRequest request, HttpServletResponse response, Page page) {
User user =(User) request.getSession().getAttribute("user");
if(null!=user)
return "%success";
return "%fail";
}
public String loginAjax(HttpServletRequest request, HttpServletResponse response, Page page) {
String name = request.getParameter("name");
String password = request.getParameter("password");
PrintWriter p;
User user = userDAO.get(name,password);
if(null==user){
request.setAttribute("msg", "账号密码错误");
return "%fail";
}
request.getSession().setAttribute("user", user);
return "%success";
}
}
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问答区域
2020-07-29
imgAndInfo.jsp 页面ajax提交问题
1 个答案
how2j 跳转到问题位置 答案时间：2020-07-30 这是后续加入购物车那里会用到的功能：
https://how2j.cn/k/tmall-j2ee/tmall-j2ee-1031/1031.html
回答已经提交成功，正在审核。 请于 我的回答 处查看回答记录，谢谢
2020-05-03
如何把模态登录窗口改为非模态的
回答已经提交成功，正在审核。 请于 我的回答 处查看回答记录，谢谢
2020-04-29
ajax返回字符串作比较总为false
2020-04-06
在已经登录的状态下，点击 立即购买 和 加入购物车 还会要求登录，代码比较过没有问题，不知道怎么解决
2019-12-06
modal.jsp-ajax代码进行登录验证中，name需要转义吗？name = HtmlUtils.htmlEscape(name);
提问太多，页面渲染太慢，为了加快渲染速度，本页最多只显示几条提问。还有 15 条以前的提问，请 点击查看
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提问已经提交成功，正在审核。 请于 我的提问 处查看提问记录，谢谢
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