• Java连接S3并上传Redis


    package com.shinho.bigdatalake.redis;
    
    import com.amazonaws.regions.Region;
    import com.amazonaws.regions.Regions;
    import com.amazonaws.services.s3.AmazonS3;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.nio.charset.Charset;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Date;
    import java.util.List;
    import java.util.Map;
    
    import org.apache.commons.csv.CSVFormat;
    import org.apache.commons.csv.CSVParser;
    import org.apache.commons.csv.CSVRecord;
    import org.apache.commons.io.IOUtils;
    import org.apache.log4j.Logger;
    
    import com.alibaba.fastjson.JSON;
    import com.amazonaws.auth.BasicAWSCredentials;
    import com.amazonaws.services.s3.AmazonS3Client;
    import com.amazonaws.services.s3.model.GetObjectRequest;
    import com.amazonaws.services.s3.model.ObjectListing;
    import com.amazonaws.services.s3.model.S3Object;
    import com.amazonaws.services.s3.model.S3ObjectInputStream;
    import com.amazonaws.services.s3.model.S3ObjectSummary;
    import com.shinho.test.TestApp;
    
    import redis.clients.jedis.Jedis;
    
    public class S3Utils {
        private static final Logger logger = Logger.getLogger(S3Utils.class);
        
        public static AmazonS3 s3 = null;
        
        public static final String AWS_ACCESS_KEY = "xxx";
        
        public static final String AWS_SECRET_KEY = "xxx";
        
        public static final String bucketName = "xxx";
        
        static{
            s3 = new AmazonS3Client(new BasicAWSCredentials(AWS_ACCESS_KEY, AWS_SECRET_KEY));
            s3.setRegion(Region.getRegion(Regions.CN_NORTH_1));
        }
        
        public static int getData() throws Exception{
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String json = "";
            ObjectListing ol = s3.listObjects(bucketName);
            List<S3ObjectSummary> objects = ol.getObjectSummaries();
            for (S3ObjectSummary os: objects) {
                System.out.println("* " + os.getKey());
            }
            S3Object obj = s3.getObject(new GetObjectRequest(bucketName,"test/tmp_test_put1.csv"));
            Jedis jedis = new Jedis("xxx");
            jedis.select(15);
            List<CSVRecord> list = null;
            if(obj != null){
                InputStream input = null;
                input = obj.getObjectContent();
                InputStreamReader reader = new InputStreamReader(input, Charset.forName("utf-8"));
                CSVFormat format = CSVFormat.DEFAULT;
                CSVParser parser = format.parse(reader);
                logger.info("开始读取:"+sdf.format(new Date()));
                list = parser.getRecords();
                logger.info("完成读取:"+sdf.format(new Date()));
                for(CSVRecord csv:list){
                    Map<String, String> map = csv.toMap();
                    String key = "gdt_cmplya_mid_dist_goal;" + map.get(2)+";"
                            +map.get(1)+";";
                    String value = JSON.toJSONString(map);
                    jedis.set(key, value);
                }
                logger.info("完成转换:"+sdf.format(new Date()));
            }
            return list.size();
        }
    }

    pom.xml如下:

    <dependency>  
      <groupId>com.amazonaws</groupId>  
      <artifactId>aws-java-sdk</artifactId>  
      <version>1.10.26</version>  
    </dependency> 
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-csv</artifactId>
        <version>1.6</version>
    </dependency>
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>2.9.0</version>
    </dependency>
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  • 原文地址:https://www.cnblogs.com/wpcnblog/p/9716949.html
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