电商项目总结

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";    }

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());    }

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>

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>

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);

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;    }

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;}

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");    }

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);    }

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);    }

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