sqoop1.99.4 JAVA API操作

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貌似天国还没有介绍1.99.4的java操作代码的，自己吃一次螃蟹吧

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如果你是MAVEN项目

 <dependency>
   <groupId>org.apache.sqoop</groupId>
     <artifactId>sqoop-client</artifactId>
     <version>1.99.4</version>
 </dependency>

如果你是java项目

导入sqoop1.99.4中shell目录下的lib里面全部jar包就行(不用server中的）

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HDFS->MYSQL

 package org.admln.sqoopOperate;

 import org.apache.sqoop.client.SqoopClient;
 import org.apache.sqoop.model.MFromConfig;
 import org.apache.sqoop.model.MJob;
 import org.apache.sqoop.model.MLink;
 import org.apache.sqoop.model.MLinkConfig;
 import org.apache.sqoop.model.MSubmission;
 import org.apache.sqoop.model.MToConfig;
 import org.apache.sqoop.submission.counter.Counter;
 import org.apache.sqoop.submission.counter.CounterGroup;
 import org.apache.sqoop.submission.counter.Counters;
 import org.apache.sqoop.validation.Status;

 public class HDFSToMysql {
     public static void main(String[] args) {
         sqoopTransfer();
     }
     public static void sqoopTransfer() {
         //初始化
         String url = "http://hadoop:12000/sqoop/";
         SqoopClient client = new SqoopClient(url);

         //创建一个源链接 HDFS
         long fromConnectorId = 1;
         MLink fromLink = client.createLink(fromConnectorId);
         fromLink.setName("HDFS connector");
         fromLink.setCreationUser("admln");
         MLinkConfig fromLinkConfig = fromLink.getConnectorLinkConfig();
         fromLinkConfig.getStringInput("linkConfig.uri").setValue("hdfs://hadoop:8020/");
         Status fromStatus = client.saveLink(fromLink);
         if(fromStatus.canProceed()) {
          System.out.println("创建HDFS Link成功，ID为: " + fromLink.getPersistenceId());
         } else {
          System.out.println("创建HDFS Link失败");
         }
         //创建一个目的地链接 JDBC
         long toConnectorId = 2;
         MLink toLink = client.createLink(toConnectorId);
         toLink.setName("JDBC connector");
         toLink.setCreationUser("admln");
         MLinkConfig toLinkConfig = toLink.getConnectorLinkConfig();
         toLinkConfig.getStringInput("linkConfig.connectionString").setValue("jdbc:mysql://hadoop:3306/hive");
         toLinkConfig.getStringInput("linkConfig.jdbcDriver").setValue("com.mysql.jdbc.Driver");
         toLinkConfig.getStringInput("linkConfig.username").setValue("hive");
         toLinkConfig.getStringInput("linkConfig.password").setValue("hive");
         Status toStatus = client.saveLink(toLink);
         if(toStatus.canProceed()) {
          System.out.println("创建JDBC Link成功，ID为: " + toLink.getPersistenceId());
         } else {
          System.out.println("创建JDBC Link失败");
         }

         //创建一个任务
         long fromLinkId = fromLink.getPersistenceId();
         long toLinkId = toLink.getPersistenceId();
         MJob job = client.createJob(fromLinkId, toLinkId);
         job.setName("HDFS to MySQL job");
         job.setCreationUser("admln");
         //设置源链接任务配置信息
         MFromConfig fromJobConfig = job.getFromJobConfig();
         fromJobConfig.getStringInput("fromJobConfig.inputDirectory").setValue("/out/aboutyunLog/HiveExport/ipstatistical/data");

         //创建目的地链接任务配置信息
         MToConfig toJobConfig = job.getToJobConfig();
         toJobConfig.getStringInput("toJobConfig.schemaName").setValue("aboutyunlog");
         toJobConfig.getStringInput("toJobConfig.tableName").setValue("ipstatistical");
         //toJobConfig.getStringInput("fromJobConfig.partitionColumn").setValue("id");
         // set the driver config values
         //MDriverConfig driverConfig = job.getDriverConfig();
         //driverConfig.getStringInput("throttlingConfig.numExtractors").setValue("3");//这句还没弄明白
         Status status = client.saveJob(job);
         if(status.canProceed()) {
          System.out.println("JOB创建成功，ID为: "+ job.getPersistenceId());
         } else {
          System.out.println("JOB创建失败。");
         }

         //启动任务
         long jobId = job.getPersistenceId();
         MSubmission submission = client.startJob(jobId);
         System.out.println("JOB提交状态为 : " + submission.getStatus());
         while(submission.getStatus().isRunning() && submission.getProgress() != -1) {
           System.out.println("进度 : " + String.format("%.2f %%", submission.getProgress() * 100));
           //三秒报告一次进度
           try {
             Thread.sleep(3000);
           } catch (InterruptedException e) {
             e.printStackTrace();
           }
         }
         System.out.println("JOB执行结束... ...");
         System.out.println("Hadoop任务ID为 :" + submission.getExternalId());
         Counters counters = submission.getCounters();
         if(counters != null) {
           System.out.println("计数器:");
           for(CounterGroup group : counters) {
             System.out.print("\t");
             System.out.println(group.getName());
             for(Counter counter : group) {
               System.out.print("\t\t");
               System.out.print(counter.getName());
               System.out.print(": ");
               System.out.println(counter.getValue());
             }
           }
         }
         if(submission.getExceptionInfo() != null) {
           System.out.println("JOB执行异常，异常信息为 : " +submission.getExceptionInfo());
         }
         System.out.println("HDFS通过sqoop传输数据到MySQL统计执行完毕");
     }
 }

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MYSQL->HDFS

 package org.admln.sqoopOperate;

 import org.apache.sqoop.client.SqoopClient;
 import org.apache.sqoop.model.MDriverConfig;
 import org.apache.sqoop.model.MFromConfig;
 import org.apache.sqoop.model.MJob;
 import org.apache.sqoop.model.MLink;
 import org.apache.sqoop.model.MLinkConfig;
 import org.apache.sqoop.model.MSubmission;
 import org.apache.sqoop.model.MToConfig;
 import org.apache.sqoop.submission.counter.Counter;
 import org.apache.sqoop.submission.counter.CounterGroup;
 import org.apache.sqoop.submission.counter.Counters;
 import org.apache.sqoop.validation.Status;

 public class MysqlToHDFS {
     public static void main(String[] args) {
         sqoopTransfer();
     }
     public static void sqoopTransfer() {
         //初始化
         String url = "http://hadoop:12000/sqoop/";
         SqoopClient client = new SqoopClient(url);

         //创建一个源链接 JDBC
         long fromConnectorId = 2;
         MLink fromLink = client.createLink(fromConnectorId);
         fromLink.setName("JDBC connector");
         fromLink.setCreationUser("admln");
         MLinkConfig fromLinkConfig = fromLink.getConnectorLinkConfig();
         fromLinkConfig.getStringInput("linkConfig.connectionString").setValue("jdbc:mysql://hadoop:3306/hive");
         fromLinkConfig.getStringInput("linkConfig.jdbcDriver").setValue("com.mysql.jdbc.Driver");
         fromLinkConfig.getStringInput("linkConfig.username").setValue("hive");
         fromLinkConfig.getStringInput("linkConfig.password").setValue("hive");
         Status fromStatus = client.saveLink(fromLink);
         if(fromStatus.canProceed()) {
          System.out.println("创建JDBC Link成功，ID为: " + fromLink.getPersistenceId());
         } else {
          System.out.println("创建JDBC Link失败");
         }
         //创建一个目的地链接HDFS
         long toConnectorId = 1;
         MLink toLink = client.createLink(toConnectorId);
         toLink.setName("HDFS connector");
         toLink.setCreationUser("admln");
         MLinkConfig toLinkConfig = toLink.getConnectorLinkConfig();
         toLinkConfig.getStringInput("linkConfig.uri").setValue("hdfs://hadoop:8020/");
         Status toStatus = client.saveLink(toLink);
         if(toStatus.canProceed()) {
          System.out.println("创建HDFS Link成功，ID为: " + toLink.getPersistenceId());
         } else {
          System.out.println("创建HDFS Link失败");
         }

         //创建一个任务
         long fromLinkId = fromLink.getPersistenceId();
         long toLinkId = toLink.getPersistenceId();
         MJob job = client.createJob(fromLinkId, toLinkId);
         job.setName("MySQL to HDFS job");
         job.setCreationUser("admln");
         //设置源链接任务配置信息
         MFromConfig fromJobConfig = job.getFromJobConfig();
         fromJobConfig.getStringInput("fromJobConfig.schemaName").setValue("sqoop");
         fromJobConfig.getStringInput("fromJobConfig.tableName").setValue("sqoop");
         fromJobConfig.getStringInput("fromJobConfig.partitionColumn").setValue("id");
         MToConfig toJobConfig = job.getToJobConfig();
         toJobConfig.getStringInput("toJobConfig.outputDirectory").setValue("/usr/tmp");
         MDriverConfig driverConfig = job.getDriverConfig();
         driverConfig.getStringInput("throttlingConfig.numExtractors").setValue("3");

         Status status = client.saveJob(job);
         if(status.canProceed()) {
          System.out.println("JOB创建成功，ID为: "+ job.getPersistenceId());
         } else {
          System.out.println("JOB创建失败。");
         }

         //启动任务
         long jobId = job.getPersistenceId();
         MSubmission submission = client.startJob(jobId);
         System.out.println("JOB提交状态为 : " + submission.getStatus());
         while(submission.getStatus().isRunning() && submission.getProgress() != -1) {
           System.out.println("进度 : " + String.format("%.2f %%", submission.getProgress() * 100));
           //三秒报告一次进度
           try {
             Thread.sleep(3000);
           } catch (InterruptedException e) {
             e.printStackTrace();
           }
         }
         System.out.println("JOB执行结束... ...");
         System.out.println("Hadoop任务ID为 :" + submission.getExternalId());
         Counters counters = submission.getCounters();
         if(counters != null) {
           System.out.println("计数器:");
           for(CounterGroup group : counters) {
             System.out.print("\t");
             System.out.println(group.getName());
             for(Counter counter : group) {
               System.out.print("\t\t");
               System.out.print(counter.getName());
               System.out.print(": ");
               System.out.println(counter.getValue());
             }
           }
         }
         if(submission.getExceptionInfo() != null) {
           System.out.println("JOB执行异常，异常信息为 : " +submission.getExceptionInfo());
         }
         System.out.println("MySQL通过sqoop传输数据到HDFS统计执行完毕");
     }
 }

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别问为什么没有MYSQL和HBASE、HIVE互导的代码

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20150102