基于Spark大数据电商推荐系统源码

大数据项目电商推荐系统经修改过的源码，已运行出来，论文可联系我获取。 免积分下载，如遇需要积分是csdn根据下载量自动累加设置的，请联系我设置免积分下载。 文章链接https://blog.csdn.net/qq_43265673/article/details/101790686

package com.huat.huangjiahao.business;

import java.util.concurrent.ConcurrentHashMap;

public class Application {
    public static void main（String[] args） {
        System.out.println（Math.round（4.466D））;
    }

}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2020-05-17 11:16  ECommerceRecommendSystem\
     目录           0  2020-05-20 17:18  ECommerceRecommendSystem\.idea\
     文件         184  2020-04-12 15:17  ECommerceRecommendSystem\.idea\.gitignore
     目录           0  2020-05-17 11:21  ECommerceRecommendSystem\.idea\artifacts\
     文件         220  2020-05-17 11:21  ECommerceRecommendSystem\.idea\artifacts\.xml
     目录           0  2020-05-16 00:08  ECommerceRecommendSystem\.idea\codestyles\
     文件         447  2020-05-13 20:31  ECommerceRecommendSystem\.idea\codestyles\Project.xml
     文件         153  2020-05-13 19:22  ECommerceRecommendSystem\.idea\codestyles\codestyleConfig.xml
     文件         767  2020-05-20 16:47  ECommerceRecommendSystem\.idea\compiler.xml
     文件         435  2020-04-09 21:53  ECommerceRecommendSystem\.idea\deployment.xml
     文件         852  2020-05-17 11:16  ECommerceRecommendSystem\.idea\encodings.xml
     文件         864  2020-04-12 15:18  ECommerceRecommendSystem\.idea\jarRepositories.xml
     文件         756  2019-09-26 22:05  ECommerceRecommendSystem\.idea\misc.xml
     文件         270  2019-09-26 14:30  ECommerceRecommendSystem\.idea\scala_compiler.xml
     文件         517  2020-05-18 21:49  ECommerceRecommendSystem\.idea\sshConfigs.xml
     文件        8915  2020-04-25 19:54  ECommerceRecommendSystem\.idea\uiDesigner.xml
     文件         631  2020-04-09 22:28  ECommerceRecommendSystem\.idea\webServers.xml
     文件       38083  2020-05-20 17:18  ECommerceRecommendSystem\.idea\workspace.xml
     文件          81  2019-09-25 20:50  ECommerceRecommendSystem\ECommerceRecommendSystem.iml
     目录           0  2020-05-16 00:08  ECommerceRecommendSystem\businessServer\
     文件        3585  2020-04-10 10:52  ECommerceRecommendSystem\businessServer\pom.xml
     目录           0  2019-09-26 21:36  ECommerceRecommendSystem\businessServer\src\
     目录           0  2019-09-26 21:36  ECommerceRecommendSystem\businessServer\src\main\
     目录           0  2019-09-26 21:36  ECommerceRecommendSystem\businessServer\src\main\java\
     目录           0  2020-05-16 12:08  ECommerceRecommendSystem\businessServer\src\main\java\com\
     目录           0  2020-04-10 10:49  ECommerceRecommendSystem\businessServer\src\main\java\com\huat\
     目录           0  2020-04-10 10:49  ECommerceRecommendSystem\businessServer\src\main\java\com\huat\huangjiahao\
     目录           0  2020-05-17 12:05  ECommerceRecommendSystem\businessServer\src\main\java\com\huat\huangjiahao\business\
     文件         227  2020-05-17 12:05  ECommerceRecommendSystem\businessServer\src\main\java\com\huat\huangjiahao\business\Application.java
     目录           0  2020-04-10 10:49  ECommerceRecommendSystem\businessServer\src\main\java\com\huat\huangjiahao\business\model\
     目录           0  2020-05-16 00:08  ECommerceRecommendSystem\businessServer\src\main\java\com\huat\huangjiahao\business\model\domain\
............此处省略427个文件信息