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eclipse配置mahout

1.在elcipse上建立一个java project 项目名:mymahout

 

2.建立libs文件夹,在mahout 0.9的lib文件夹下找到一下java包 

 

 

其中log4j.properties可在hadoop文件夹下找到。

把他们放到libs文件夹下。

3.把文件夹libs复制到mymahout项目下

4.点击libs文件夹,右键,选择Build Path,把libs文件夹下的文件引入。

5.建立类mahout,写入如下代码

import java.io.File;import java.util.List;import org.apache.mahout.cf.taste.impl.model.file.*;import org.apache.mahout.cf.taste.impl.neighborhood.NearestNUserNeighborhood;import org.apache.mahout.cf.taste.impl.recommender.GenericUserBasedRecommender;import org.apache.mahout.cf.taste.impl.similarity.PearsonCorrelationSimilarity;import org.apache.mahout.cf.taste.model.DataModel;import org.apache.mahout.cf.taste.neighborhood.UserNeighborhood;import org.apache.mahout.cf.taste.recommender.RecommendedItem;import org.apache.mahout.cf.taste.recommender.Recommender;import org.apache.mahout.cf.taste.similarity.UserSimilarity;public class Mahout {        public static void main(String[] args) throws Exception    {        DataModel model=new FileDataModel(new File("/Users/jia/Desktop/test.txt"));        UserSimilarity similarity =new PearsonCorrelationSimilarity(model);        UserNeighborhood neighborhood =new NearestNUserNeighborhood(2,similarity,model);        Recommender recommender= new GenericUserBasedRecommender(model,neighborhood,similarity);        List<RecommendedItem> recommendations =recommender.recommend(1, 2);        for(RecommendedItem recommendation :recommendations){            System.out.println(recommendation);        }    }}
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6.运行结果 

红色部分提示,如果结合hadoop集群跑,才会写入日记文件。这里不是在聚群上跑,所以提示警告。

eclipse配置mahout