电商项目总结 推荐

最近一段时间刚刚学习了一些新的知识，就想拿个项目练练手，然后就在网上找了一个培训的电商项目练习了一下，做了之后学到了很多，学到了项目的很多流程，在这里总结一下。
一、项目介绍：

网上商城项目，用于建立网上终端、营销案在线销售及相关辅助功能，后台包含商品管理、订单管理、类目管理、客户管理、合作商管理、客服管理、支付平台、内容管理等，很大程度上分担了人工的压力，前台包括个人中心，购物车，商城首页，频道页，商品详情页，提交订单页，支付页面等页面构成，对提高客户服务效率和客户满意度能够起到较好的作用。
二、项目所用技术：
1、Jsp,freemarker,jQuery,css+div,jstl标签，fckEditor, struts-menu
2、Springmvc,spring,mybatis
3、Webservice框架cxf
4、Jersey搭建图片服务器
5、Maven,svn,hudson
6、Oracle
三、开发环境：
1、Eclipse4.3
2、Tomcat7.0
3、Jdk1.7
4、Oracle10g
5、Maven3.1.5
6、Svn
7、hudson
四、系统架构：
这里使用maven进行依赖管理



接下来，我把这里面比较核心的模块分析一下，进行总结，里面包括：
后台：
1、品牌管理：包括简单的增删改查
2、商品管理：里面有一个比较核心的商品添加到前台的功能，主要的业务包括操作商品表、商品大字段表、商品属性表、商品的特殊属性表
3、订单管理：订单的增删改查，商品的上架，商品的发布（通过webService）。
前台：
1、商品的首页展示：通过多表查询进行分页查询显示
2、商品的单品页展示：利用freemaker技术对页面进行静态化处理，在后台进行静态化的发布，这样的好处是查询的时候只需查询一次数据库，静态化之后不需要再查询，大大的提高了系统的效率。
3、购物车：使用cookie技术，好处:用户不需要登录即可操作购物车。
4、订单流程：这里使用工作流activiti，这里对工作流的使用进行了加强。
五、核心模块的总结：
6.1、商品的添加：
操作商品表、商品大字段表、商品属性表、商品的特殊属性表
aaction层：

@RequestMapping("/addItem.do")
public String addItem(EbItem item, EbItemClob itemClob, HttpServletRequest request,Integer divNum){
item.setItemNo(new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date()));
List<EbFeature> commList = featureService.selectCommFeature();
List<EbParaValue> paraList = new ArrayList<EbParaValue>();        for(EbFeature feature: commList){            //获得属性的id也就是普通属性在页面上的name
Long featureId = feature.getFeatureId();            if(feature.getInputType() == 3){                String [] paraArr = request.getParameterValues(featureId+"");                if(paraArr != null && paraArr.length > 0){                    String paraVals = "";                    for(String val : paraArr){
paraVals = paraVals + val + ",";
}
paraVals = paraVals.substring(0, paraVals.length() - 1);
EbParaValue pv = new EbParaValue();
pv.setFeatureId(featureId);
pv.setParaValue(paraVals);
paraList.add(pv);
}

}else{                String paraVal = request.getParameter(featureId+"");                if(StringUtils.isNotBlank(paraVal)){
EbParaValue pv = new EbParaValue();
pv.setFeatureId(featureId);
pv.setParaValue(paraVal);
paraList.add(pv);
}
}
}
List<EbSku> skuList = new ArrayList<EbSku>();
List<EbFeature> specList = featureService.selectSpecFeature();        //skuType1   showStatus1   sort1     skuPrice1  marketPrice1  stockInventory1  skuUpperLimit1  sku1  location1
//遍历div数量
for(int i = 1; i <= divNum; i++){            //获得商城价和库存，他们是必填的字段
String skuPrice = request.getParameter("skuPrice"+i);            String stock = request.getParameter("stockInventory"+i);            //如果上面的必填字段不是空说明数据有效
if(StringUtils.isNotBlank(skuPrice) && StringUtils.isNotBlank(stock)){                String skuType = request.getParameter("skuType"+i);                String showStatus = request.getParameter("showStatus"+i);                String sort = request.getParameter("sort"+i);                String marketPrice = request.getParameter("marketPrice"+i);                String skuUpperLimit = request.getParameter("skuUpperLimit"+i);                String sku = request.getParameter("sku"+i);                String location = request.getParameter("location"+i);                //创建最小销售单元的对象，并且赋值
EbSku skuObj = new EbSku();
skuObj.setSkuPrice(new BigDecimal(skuPrice));
skuObj.setStockInventory(new Integer(stock));                if(StringUtils.isNotBlank(skuType) && !StringUtils.equals(skuType, "")){
skuObj.setSkuType(new Short(skuType));
}                if(StringUtils.isNotBlank(showStatus) && !StringUtils.equals(showStatus, "")){
skuObj.setShowStatus(new Short(showStatus));
}                if(StringUtils.isNotBlank(sort) && !StringUtils.equals(sort, "")){
skuObj.setSkuSort(new Integer(sort));
}                if(StringUtils.isNotBlank(marketPrice) && !StringUtils.equals(marketPrice, "")){
skuObj.setMarketPrice(new BigDecimal(marketPrice));
}                if(StringUtils.isNotBlank(skuUpperLimit) && !StringUtils.equals(skuUpperLimit, "")){
skuObj.setSkuUpperLimit(new Integer(skuUpperLimit));
}
skuObj.setSku(sku);
skuObj.setLocation(location);

List<EbSpecValue> specValList = new ArrayList<EbSpecValue>();                //获得每个最小销售单元所拥有的规格属性值，
//遍历规格属性
for(EbFeature feature : specList){
Long featureId = feature.getFeatureId();                    //获得所选规格属性的值
String specVal = request.getParameter(featureId+"specradio"+i);                    //创建规格对象
EbSpecValue spec = new EbSpecValue();
spec.setFeatureId(featureId);
spec.setSpecValue(specVal);
specValList.add(spec);
}
skuObj.setSpecList(specValList);
skuList.add(skuObj);
}

}
itemService.saveItem(item, itemClob, paraList, skuList);        return "redirect:listItem.do?showStatus=1&auditStatus=1";
}12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091921234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192

service层：

public void saveItem(EbItem item, EbItemClob itemClob,
List<EbParaValue> paraList, List<EbSku> skuList) {
itemDao.saveItem(item);
paraValueDao.saveParaValue(paraList, item.getItemId());
itemClobDao.saveItemClob(itemClob, item.getItemId());
skuDao.saveSku(skuList, item.getItemId());

}1234567812345678

6.2、商品分页sql

<!--

分页查询的结果集

-->

<select id="selectItemByCondition" parameterType="com.rl.ecps.model.QueryCondition" resultMap="BaseResultMap">

select *

from (select rownum rw, a.*

from (

select * from eb_item t          <where>

<if test="brandId != null">

t.brand_id = #{brandId}            </if>

<if test="auditStatus != null">

and t.audit_status = #{auditStatus}            </if>

<if test="showStatus != null">

and t.show_status = #{showStatus}            </if>

<if test="itemName != null">

and t.item_name like '%${itemName}%'            </if>

</where>

order by t.item_id desc          <![CDATA[

) a

where rownum < #{endNum}) b

where b.rw > #{startNum}

]]>

</select>1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575812345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758

6.3、商品的首页查询筛选
6.3.1、sql

<!--

map.put("minPrice", 4000);

map.put("maxPrice", 4999);

map.put("brandId", 1003);

map.put("paraList", String[] paraList)

-->

<select id="listItem" parameterType="map" resultMap="listItemRM">

select min(es.sku_price) sku_price, ei.*

from eb_item ei, eb_sku es

<where>

ei.item_id = es.item_id

<if test="minPrice != null">        and es.sku_price between #{minPrice} and #{maxPrice}

</if>

<if test="brandId != null">         and ei.brand_id = #{brandId}

</if>

<if test="paraList != null">

<foreach collection="paraList" item="paraValue">            and exists (select *

from eb_para_value t

where ei.item_id = t.item_id               and t.para_value = #{paraValue})

</foreach>

</if>

</where>

group by ei.ITEM_ID,

ei.ITEM_NAME,

ei.ITEM_NO,

ei.BRAND_ID,

ei.CAT_ID,

ei.TAG_IMG_ID,

ei.TAG_IMG,

ei.IS_NEW,

ei.IS_GOOD,

ei.IS_HOT,

ei.PROMOTION,

ei.AUDIT_STATUS,

ei.SHOW_STATUS,

ei.IMGS,

ei.KEYWORDS,

ei.PAGE_DESC,

ei.ITEM_RECYCLE,

ei.ON_SALE_TIME,

ei.CHECK_TIME,

ei.UPDATE_TIME,

ei.UPDATE_USER_ID,

ei.CREATE_TIME,

ei.CHECKER_USER_ID,

ei.FULL_PATH_DEPLOY,

ei.FULL_PATH_DEPLOY_OFFER,

ei.ORIGINAL_ITEM_ID,

ei.LAST_STATUS,

ei.MERCHANT_ID,

ei.ITEM_SORT,

ei.SALES,

ei.CREATE_USER_ID,

ei.SIM_LEVEL,

ei.GIFT_DESC,

ei.GIFT_IMG,

ei.GIFT_SHOW_TYPE,

ei.IMG_SIZE1

order by ei.item_id desc

</select>123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127

7、商品页静态化
主要将jsp改为静态的html页面，利用freemaker语法。
8、购物车
购物车利用cookie存储在浏览器，在后台拿到cookie进行数据操作。
购物车模块：
接口:

/**
* 查询购物车所有商品
* @param request
* @param response
* @return
*/
public List<EbCart> listCart(HttpServletRequest request, HttpServletResponse response);    /**
* 添加购物车
* @param request
* @param response
* @param skuId 最小销售单元id
* @param quantity 商品数量
*/
public void addCart(HttpServletRequest request, HttpServletResponse response, Long skuId, Integer quantity);    /**
* 根据商品id商品数量加一
* @param request
* @param response
* @param skuId 最小销售单元id
*/
public void addNum(HttpServletRequest request, HttpServletResponse response, Long skuId);    /**
* 根据商品id商品数量减一
* @param request
* @param response
* @param skuId 最小销售单元id
*/
public void reduceNum(HttpServletRequest request, HttpServletResponse response, Long skuId);    public void deleteCart(HttpServletRequest request, HttpServletResponse response, Long skuId);    public void clearCart(HttpServletRequest request, HttpServletResponse response);    public String validCookie(HttpServletRequest request, HttpServletResponse response);    public String validCar(HttpServletRequest request, HttpServletResponse response);1234567891011121314151617181920212223242526272829303132333435363738394012345678910111213141516171819202122232425262728293031323334353637383940

实现类：

public List<EbCart> listCart(HttpServletRequest request,
HttpServletResponse response) {
List<EbCart> cartList = new ArrayList<EbCart>();        //获取浏览器所有cookie
Cookie[] cookies = request.getCookies();        //[{skuId:1,quantity:2},{}]
if(cookies != null && cookies.length > 0){            for (Cookie cookie : cookies) {                String code = ECPSUtils.readProp("cookie_ecps_code");                String name = cookie.getName();                if(StringUtils.equals(name, code)){                    String result = cookie.getValue();                    //对其进行解码，防止中文乱码
result = URLDecoder.decode(result);
JSONArray ja = JSONArray.fromObject(result);
JsonConfig jc = new JsonConfig();                    //设置要转换的类
jc.setRootClass(EbCart.class);                    //排除类里面的属性
jc.setExcludes(new String[]{"sku"});
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);                    //根据skuid设置购物车对象的EbSku对象
for (EbCart cart : cartList) {
EbSku sku = skuDao.getSkuDetailById(cart.getSkuId());
cart.setSku(sku);
}
}
}
}        return cartList;
}

public void addCart(HttpServletRequest request,
HttpServletResponse response, Long skuId, Integer quantity) {
List<EbCart> cartList = new ArrayList<EbCart>();        //json的配置对象
JsonConfig jc = new JsonConfig();        //设置要转换的类
jc.setRootClass(EbCart.class);        //设置不需要转换的属性
jc.setExcludes(new String[]{"sku"});
Cookie[] cookies = request.getCookies();        if(cookies != null&&cookies.length > 0){            for(Cookie cookie : cookies){                String name = cookie.getName();                String cookieKey = ECPSUtils.readProp("cookie_ecps_code");                if(StringUtils.equals(name, cookieKey)){                    //获得cookie的值
String result = cookie.getValue();                    //[{skuId:1002, quantity:2}, {skuId:1003, quantity:3},....]
result = URLDecoder.decode(result);                    //把json格式的字符串转换成json数组对象
JSONArray ja = JSONArray.fromObject(result);                    //把json的数组转换成java集合
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);

boolean isExsits = false;                    //1.如果存在对应商品，则在基础上数量加一
for(EbCart cart: cartList){                        if(cart.getSkuId().longValue() == skuId.longValue()){
cart.setQuantity(cart.getQuantity() + quantity);
isExsits = true;
}
}                    //2.如果不存在，则创建新的对象
if(!isExsits){
EbCart cartObj = new EbCart();
cartObj.setSkuId(skuId);
cartObj.setQuantity(quantity);
cartList.add(cartObj);
}

}
}
}        //3.如果没有创建过cookie对象，则创建
if(cartList.size() == 0){
EbCart cartObj = new EbCart();
cartObj.setSkuId(skuId);
cartObj.setQuantity(quantity);
cartList.add(cartObj);
}        //将java对象再次转换为字符串存到cookie中
JSONArray ja = JSONArray.fromObject(cartList, jc);        String result = ja.toString();
result = URLEncoder.encode(result);
Cookie cookie = new Cookie("cookie_ecps_code", result);
cookie.setMaxAge(Integer.MAX_VALUE);
cookie.setPath("/");
response.addCookie(cookie);
}

public void addNum(HttpServletRequest request,
HttpServletResponse response, Long skuId) {
List<EbCart> cartList = new ArrayList<EbCart>();        //json的配置对象
JsonConfig jc = new JsonConfig();        //设置要转换的类
jc.setRootClass(EbCart.class);        //设置不需要转换的属性
jc.setExcludes(new String[]{"sku"});
Cookie[] cookies = request.getCookies();        if(cookies != null&&cookies.length > 0){            for(Cookie cookie : cookies){                String name = cookie.getName();                String cookieKey = ECPSUtils.readProp("cookie_ecps_code");                if(StringUtils.equals(name, cookieKey)){                    //获得cookie的值
String result = cookie.getValue();                    //[{skuId:1002, quantity:2}, {skuId:1003, quantity:3},....]
result = URLDecoder.decode(result);                    //把json格式的字符串转换成json数组对象
JSONArray ja = JSONArray.fromObject(result);                    //把json的数组转换成java集合
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);                    for(EbCart cart: cartList){                        if(cart.getSkuId().longValue() == skuId.longValue()){
cart.setQuantity(cart.getQuantity() + 1);
}
}

}
}
}        //将java对象再次转换为字符串存到cookie中
JSONArray ja = JSONArray.fromObject(cartList, jc);        String result = ja.toString();
result = URLEncoder.encode(result);
Cookie cookie = new Cookie("cookie_ecps_code", result);
cookie.setMaxAge(Integer.MAX_VALUE);
cookie.setPath("/");
response.addCookie(cookie);
}

@SuppressWarnings("deprecation")
public void reduceNum(HttpServletRequest request,
HttpServletResponse response, Long skuId) {
List<EbCart> cartList = new ArrayList<EbCart>();
Cookie[] cookies = request.getCookies();
JsonConfig jc = new JsonConfig();
jc.setRootClass(EbCart.class);
jc.setExcludes(new String[]{"sku"});        if(cookies != null && cookies.length > 0){            for (Cookie cookie : cookies) {                String name = cookie.getName();                String code = ECPSUtils.readProp("cookie_ecps_code");                if(StringUtils.equals(name, code)){                    String result = cookie.getValue();                    //将html编码解码
result = URLDecoder.decode(result);
JSONArray ja = JSONArray.fromObject(result);
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);                    for(EbCart cart : cartList){                        if(cart.getSkuId().longValue() == skuId.longValue()){
cart.setQuantity(cart.getQuantity() - 1);
}
}
}
}
}        //将java对象再次转换为字符串存到cookie中
JSONArray ja = JSONArray.fromObject(cartList, jc);        String result = ja.toString();
result = URLEncoder.encode(result);
Cookie cookie = new Cookie("cookie_ecps_code", result);
cookie.setMaxAge(Integer.MAX_VALUE);
cookie.setPath("/");
response.addCookie(cookie);
}

public void deleteCart(HttpServletRequest request,
HttpServletResponse response, Long skuId) {
List<EbCart> cartList = new ArrayList<EbCart>();        //json的配置对象
JsonConfig jc = new JsonConfig();        //设置要转换的类
jc.setRootClass(EbCart.class);        //设置不需要转换的属性
jc.setExcludes(new String[]{"sku"});
Cookie[] cookies = request.getCookies();        if(cookies != null&&cookies.length > 0){            for(Cookie cookie : cookies){                String name = cookie.getName();                String cookieKey = ECPSUtils.readProp("cookie_ecps_code");                if(StringUtils.equals(name, cookieKey)){                    //获得cookie的值
String result = cookie.getValue();                    //[{skuId:1002, quantity:2}, {skuId:1003, quantity:3},....]
result = URLDecoder.decode(result);                    //把json格式的字符串转换成json数组对象
JSONArray ja = JSONArray.fromObject(result);                    //把json的数组转换成java集合
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);                    for(EbCart cart: cartList){                        if(cart.getSkuId().longValue() == skuId.longValue()){
cartList.remove(cart);
}
}

}
}
}        //将java对象再次转换为字符串存到cookie中
JSONArray ja = JSONArray.fromObject(cartList, jc);        String result = ja.toString();
result = URLEncoder.encode(result);
Cookie cookie = new Cookie("cookie_ecps_code", result);
cookie.setMaxAge(Integer.MAX_VALUE);
cookie.setPath("/");
response.addCookie(cookie);
}

public void clearCart(HttpServletRequest request,
HttpServletResponse response) {
List<EbCart> cartList = new ArrayList<EbCart>();        //json的配置对象
JsonConfig jc = new JsonConfig();        //设置要转换的类
jc.setRootClass(EbCart.class);        //设置不需要转换的属性
jc.setExcludes(new String[]{"sku"});
Cookie[] cookies = request.getCookies();        if(cookies != null&&cookies.length > 0){            for(Cookie cookie : cookies){                String name = cookie.getName();                String cookieKey = ECPSUtils.readProp("cookie_ecps_code");                if(StringUtils.equals(name, cookieKey)){                    //获得cookie的值
String result = cookie.getValue();                    //[{skuId:1002, quantity:2}, {skuId:1003, quantity:3},....]
result = URLDecoder.decode(result);                    //把json格式的字符串转换成json数组对象
JSONArray ja = JSONArray.fromObject(result);                    //把json的数组转换成java集合
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);
cartList.clear();
}
}
}

JSONArray ja = JSONArray.fromObject(cartList, jc);        String result = ja.toString();
result = URLEncoder.encode(result);
Cookie cookie = new Cookie("cookie_ecps_code", result);
cookie.setMaxAge(Integer.MAX_VALUE);
cookie.setPath("/");
response.addCookie(cookie);
}

public String validCookie(HttpServletRequest request,
HttpServletResponse response) {        /**
* 1.创建cookie设置到浏览器
* 2.取cookie，看是否能拿到，如果拿到，说明浏览器cookie正常，否则，关闭了
*/
Cookie cookie = new Cookie("test", "test");
response.addCookie(cookie);
Cookie[] cookies = request.getCookies();        String result = "yes";//默认为cookie可用
if(cookies != null && cookies.length > 0){            for (Cookie cookie2 : cookies) {                String name = cookie2.getName();                String value = cookie2.getValue();
System.out.println(name+"="+value);                if((StringUtils.equals("test", name) && StringUtils.equals("test", value))){
result = "no";
}
}
}
System.out.println(result);        return "yes";
}

public String validCar(HttpServletRequest request,
HttpServletResponse response) {        String result1 = "success";
List<EbCart> cartList = new ArrayList<EbCart>();        //获得当前网站的cookie
Cookie[] cookies = request.getCookies();        if(cookies != null&&cookies.length > 0){            for(Cookie cookie : cookies){                String name = cookie.getName();                String cookieKey = ECPSUtils.readProp("cart_key");                if(StringUtils.equals(name, cookieKey)){                    //获得cookie的值
String result = cookie.getValue();                    //[{skuId:1002, quantity:2}, {skuId:1003, quantity:3},....]
result = URLDecoder.decode(result);                    //把json格式的字符串转换成json数组对象
JSONArray ja = JSONArray.fromObject(result);                    //json的配置对象
JsonConfig jc = new JsonConfig();                    //设置要转换的类
jc.setRootClass(EbCart.class);                    //设置不需要转换的属性
jc.setExcludes(new String[]{"sku"});                    //把json的数组转换成java集合
cartList = (List<EbCart>) JSONSerializer.toJava(ja, jc);                    for (EbCart cart : cartList) {                        //判断库存商品数量是否大于购买数量
EbSku sku = skuDao.getSkuDetailById(cart.getSkuId());                        if(sku.getStockInventory().intValue() < cart.getQuantity().intValue()){                            //提示信息：哪个商品什么规格不足多少
result1 = sku.getItem().getItemName();//哪个商品
for(EbSpecValue spec : sku.getSpecList()){
result1 = result1 + spec.getSpecValue();//哪个规格
}
result1 = result1 + "不足" + cart.getQuantity();//不足多少
break;//循环到库存不足的商品就跳出
}
}
}
}
}        return result1;
}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324

9、订单提交
订单提交的时候，注意每一次提交都要验证库存是否足够
页面：

//订单提交function trueBuy(){
$.ajax({
url:"${path}/user/getUser.do",
type:"post",
dataType:"text",
success:function(responseText){
var userObj  = $.parseJSON(responseText);            if(userObj.user != null){                var result = validCar();                if(result == "success"){
window.location.href = "${path}/order/toSubmitOrder.do";
}else{
alert(result);
}
}else{
tipShow("#loginAlert");
}
},
error:function(){
alert("系统错误");
}
})
}//购买数量减一function reduceNum(skuId, quantity){

var jsonObj = validStock(skuId, quantity);    if(jsonObj.result == "no"){        var newQuantity = quantity - 1;
alert("当前的库存数量不足"+newQuantity+"个,仅有"+jsonObj.stock+"个");        return;
}    if(quantity == 1){        if(confirm("是否把该商品从购物车中删除?")){
window.location.href = "${path}/cart/deleteCart.do?skuId="+skuId;
}
}else{
window.location.href = "${path}/cart/reduceNum.do?skuId="+skuId;
}
}//验证库存数量function validStock(skuId, quantity){
quantity--;    var jsonObj = null;
$.ajax({
url:"${path}/cart/validStockCar.do",
type:"post",
dataType:"text",
async:false,
data:{
skuId:skuId,
quantity:quantity
},
success:function(responseText){
jsonObj = $.parseJSON(responseText);
},
error:function(){
alert("系统错误");
}

})    return jsonObj;
}function changeImage(){
var path = "${path}/user/getImage.do?date="+new Date();
$("#captchaImage").attr("src", path);
}//提交订单异步登录function loginAjax(){
var username = $("#username").val();    var password = $("#password").val();    var captcha = $("#captcha").val();
$.ajax({
url:"${path}/user/loginAjax.do",
type:"post",
dataType:"text",
data:{
username:username,
password:password,
captcha:captcha
},
success:function(responseText){
if(responseText == "caperror"){
$("#errorName").html("验证码错误");
$("#errorName").show(500);
}else if(responseText == "userpasserror"){
$("#errorName").html("用户名或者密码错误");
$("#errorName").show(500);
}else if(responseText == "success"){
$("#loginAlertIs").html(username);
tipHide("#loginAlert");                //校验库存
var result = validCar();                if(result == "success"){
window.location.href = "${path}/order/toSubmitOrder.do";
}else{
alert(result);
}
}
},
error:function(){
alert("系统错误");
}

})
}//验证库存是否足够function validCar(){
var result = "success";
$.ajax({
url:"${path}/cart/validCar.do",
type:"post",
dataType:"text",
async:false,
success:function(responseText){
result = responseText;
},
error:function(){
alert("系统错误");
}

})    return result;
}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130

action：

//订单提交
@RequestMapping("/submitOrder.do")
public String submitOrder(HttpServletResponse response, HttpServletRequest request,EbOrder order,
HttpSession session, String address, Model model) throws Exception{
TsPtlUser user = (TsPtlUser) session.getAttribute("user");
if(user != null){
order.setPtlUserId(user.getPtlUserId());
order.setUsername(user.getUsername());
}
order.setOrderNum(new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()));
//1.如果不是新添加的地址，則通過地址的id查詢當前的地址
//2.新添加的地址，會自動的賦值給order對象
if(!StringUtils.equals("add", address)){
EbShipAddr addr = shipAddrService.selectAddrByShipAddrId(new Long(address));
BeanUtils.copyProperties(order, addr);
}
List<EbCart> cartList = cartService.listCart(request, response);
List<EbOrderDetail> detailList = new ArrayList<EbOrderDetail>();
for(EbCart cart:cartList){
EbOrderDetail detail = new EbOrderDetail();
detail.setItemId(cart.getSku().getItem().getItemId());
detail.setItemName(cart.getSku().getItem().getItemName());
detail.setItemNo(cart.getSku().getItem().getItemNo());
detail.setSkuId(cart.getSkuId());
String specVal = "";
List<EbSpecValue> specList = cart.getSku().getSpecList();
for(EbSpecValue spec : specList){
specVal = specVal + spec.getSpecValue()+",";
}
specVal = specVal.substring(0, specVal.length() - 1);
detail.setSkuSpec(specVal);
detail.setQuantity(cart.getQuantity());
detail.setSkuPrice(cart.getSku().getSkuPrice());
detail.setMarketPrice(cart.getSku().getMarketPrice());
detailList.add(detail);
}
try {
String processInstanceId = orderService.saveOrder(response, request, order, detailList);
model.addAttribute("order", order);
model.addAttribute("processInstanceId", processInstanceId);
} catch (Exception e) {
if(e instanceof EbStockException){
model.addAttribute("tip", "stock_error");
}
}
return "shop/confirmProductCase2";
}    /**
* 订单支付
*/
@RequestMapping("/pay.do")
public void pay(String processInstanceId, Long orderId, PrintWriter out){
orderService.pay(processInstanceId, orderId);
out.write("success");
}12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455561234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556

service：

public String saveOrder(HttpServletResponse response, HttpServletRequest request,
EbOrder order, List<EbOrderDetail> detailList)throws EbStockException {
orderDao.saveOrder(order);        Map<String,Object> map = new HashMap<String,Object>();
for(EbOrderDetail detail : detailList){            //給訂單詳情設置訂單id
detail.setOrderId(order.getOrderId());
detailDao.saveOrderDetail(detail);            /*EbSku sku = skuDao.getSkuById(detail.getSkuId());

sku.setStockInventory(sku.getStockInventory() - detail.getQuantity());
skuDao.update(sku);*/
map.put("skuId", detail.getSkuId());            map.put("quantity", detail.getQuantity());            //為了防止并发问题，这里可以使用：
//1.悲观锁：对查询语句进行锁，即for update
//2.乐观锁：对修改语句进行锁，即条件加判断条件：会返回影响数量
int flag = skuDao.updateStock(map);            if(flag == 0){
throw new EbStockException("库存不足");
}

}        //保存订单时，开启一个流程实例
String processInstanceId = flowService.startProcess(order.getOrderId());
cartService.clearCart(request, response);        return processInstanceId;
}    public void pay(String processInstanceId, Long orderId){        //修改订单支付状态
EbOrder order = new EbOrder();        order.setOrderId(orderId);        order.setIsPaid((short)1);
orderDao.updateOrder(order);        //完成订单支付节点
flowService.completeTaskByPId(processInstanceId, "支付");
}    public List<TaskBean> listNoPayOrder(Short isCall, String assignee) {        /**
* 1.根据办理人查询到task和businesskey
* 2.根据businesskey查询订单
* 3.根据iscall查询未支付的订单
*/
List<TaskBean> tbList1 = new ArrayList<TaskBean>();        List<TaskBean> tbList = flowService.selectTaskBeanByAssignee(assignee);
for (TaskBean tb : tbList) {
EbOrder order = orderDao.selectOrderById(tb.getBusinessKey());            //查询没有付款的订单
if(order.getIsCall().shortValue() == isCall.shortValue()){
tb.setOrder(order);
tbList1.add(tb);
}
}        return tbList1;
}    public EbOrder selectOrderAndDetailById(Long orderId) {        return orderDao.selectOrderAndDetailById(orderId);
}    public void updateOrder(Long orderId) {
EbOrder order = new EbOrder();        order.setOrderId(orderId);        order.setIsCall((short)1);
orderDao.updateOrder(order);
}    public List<TaskBean> listPaidOrder(String assignee) {        /**
* 1.根据办理人查询到task和businesskey
* 2.根据businesskey查询订单
* 3.根据iscall查询未支付的订单
*/
List<TaskBean> tbList = flowService.selectTaskBeanByAssignee(assignee);
for (TaskBean tb : tbList) {
EbOrder order = orderDao.selectOrderById(tb.getBusinessKey());            //查询没有付款的订单
tb.setOrder(order);
}        return tbList;
}    public TaskBean selectTaskBeanByOrderIdAndTaskId(Long orderId, String taskId) {
EbOrder order = orderDao.selectOrderAndDetailById(orderId);
TaskBean tb = flowService.selectTaskBeanByTaskId(taskId);
tb.setOrder(order);        return tb;
}    public void compeleTask(String taskId, String outcome, Long orderId) {
EbOrder order = new EbOrder();        order.setOrderId(orderId);        order.setUpdateTime(new Date());
flowService.compeleTaskByTaskId(taskId, outcome);
}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

10、订单流程
这里采用工作流activiti整合ssm
10.1、业务流程图
10.3、service层

public void deployFlow() {
DeploymentBuilder db = repositoryService.createDeployment();
db.addClasspathResource("com/sihai/ecps/diagrams/OrderFlow.bpmn")          .addClasspathResource("com/sihai/ecps/diagrams/OrderFlow.png");
db.deploy();
}    public String startProcess(Long orderId) {
ProcessInstance pi = runtimeService.startProcessInstanceByKey("OrderFlow", orderId+"");        return pi.getId();
}    public void completeTaskByPId(String processInstanceId, String outcome) {        Map<String, Object> map = new HashMap<String, Object>();        map.put("outcome", outcome);
Task task = taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();
taskService.complete(task.getId(), map);
}    public List<TaskBean> selectTaskBeanByAssignee(String assignee) {        //根据办理人查询任务列表
List<Task> tList = taskService.createTaskQuery()        .processDefinitionKey("OrderFlow")        .taskAssignee(assignee)        .orderByTaskCreateTime()        .desc()        .list();        List<TaskBean> tbList = new ArrayList<TaskBean>();
for (Task task : tList) {            //设置任务和businesskey
TaskBean tb = new TaskBean();
tb.setTask(task);
ProcessInstance pi = runtimeService.createProcessInstanceQuery()                    .processDefinitionKey("OrderFlow")                    .processInstanceId(task.getProcessInstanceId())                    .singleResult();            String businessKey = pi.getBusinessKey();
tb.setBusinessKey(businessKey);
tbList.add(tb);
}        return tbList;
}    public TaskBean selectTaskBeanByTaskId(String taskId) {
Task task = taskService.createTaskQuery().processDefinitionKey("OrderFlow").taskId(taskId).singleResult();
TaskBean tb = new TaskBean();
tb.setTask(task);        List<String> outcomes = this.getOutcomes(task);
tb.setOutcomes(outcomes);        return tb;
}    public List<String> getOutcomes(Task task){        List<String> outcomes = new ArrayList<String>();        //获得流程定义的对象
ProcessDefinitionEntity pe = (ProcessDefinitionEntity) repositoryService.getProcessDefinition(task.getProcessDefinitionId());        //获得流程实例对象
ProcessInstance pi = runtimeService.createProcessInstanceQuery().processDefinitionKey("OrderFlow")        .processInstanceId(task.getProcessInstanceId()).singleResult();
ActivityImpl ai = pe.findActivity(pi.getActivityId());        //获得往外面走的线路的对象
List<PvmTransition> ptList = ai.getOutgoingTransitions();

for(PvmTransition pt : ptList){            String name = (String) pt.getProperty("name");
outcomes.add(name);
}        return outcomes;
}    public void compeleTaskByTaskId(String taskId, String outcome) {        Map<String,Object> map = new HashMap<String,Object>();        map.put("outcome", outcome);
Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
taskService.complete(task.getId(), map);
}1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787912345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879

最后，写了好久，就把这些核心的写出来，总结总结一下，以后好看看