更新时间:2024-06-15 GMT+08:00
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调测Hive SpringBoot样例程序

该章节内容适用于MRS 3.3.0及之后版本。

SpringBoot样例工程的命令行形式运行

  1. 在IDEA界面左下方单击“Terminal”进入终端,执行命令mvn clean package进行编译。

    当输出“BUILD SUCCESS”,表示编译成功,如下图所示。编译成功后将会在样例工程的target下生成含有“-with-dependencies”字段的Jar包。

  2. 在Windows或Linux上创建一个目录作为运行目录,如“D:\hive-rest-client-example”(Windows环境)或“/opt/hive-rest-client-example”(Linux环境),将1中生成的“target”目录下包名中含有“-with-dependencies”字段的Jar包放进该路径下,并在该目录下创建子目录“src/main/resources"。将hive-rest-client-example工程resources目录下的所有文件复制到“resources”下。
  3. 执行以下命令启动SpringBoot服务:

    • 在Windows环境下执行:

      cd /d d:\hive-rest-client-example

      java -jar hive-rest-client-example-8.1.0.1-3.5.0-SNAPSHOT-jar-with-dependencies.jar

    • 在Linux环境下执行:

      chmod +x /opt/hive-rest-client-example -R

      cd /opt/hive-rest-client-example

      java -jar hive-rest-client-example-8.1.0.1-3.5.0-SNAPSHOT-jar-with-dependencies.jar

    以上Jar包名称仅供参考,具体名称以实际生成为主。

  4. 调用Hive的SpringBoot样例接口触发样例代码运行:

    • Windows环境运行方式:

      打开浏览器,输入:http://localhost:8080/hive/example/executesql。

    • Linux环境下执行运行方式:

      2中存放Jar的节点上执行curl http://localhost:8080/hive/example/executesql命令。

    运行样例代码时日志中可能会打印以下日志信息,虽然日志级别显示ERROR,但是不影响执行结果:

    ERROR 51320 --- [c-8-EventThread] o.a.c.framework.imps.EnsembleTracker     : Invalid config event received: {version=100000000, server.48=ZooKeeper节点IP地址:ZooKeeper端口号:ZooKeeper端口号:participant...}

  5. 查看样例代码中的HQL所查询出的结果。

    • Windows环境运行成功结果会有如下信息:
      =========================== Hive Example Start ===========================
      Start create table.
      Table created successfully.
      Start to insert data into the table.
      Inserting data to the table succeeded.
      Start to query table data.
      Query result :
      employees_infoa.id    employees_infoa.age    employees_infoa.name
      1    31    SJK
      2    25    HS
      3    28    HT
      
      Querying table data succeeded.
      Start to delete the table.
      Table deleted successfully.
      =========================== Hive Example End ===========================
    • Linux环境运行成功结果会有如下信息:
      =========================== Hive Example Start ===========================
      Start create table.
      Table created successfully.
      Start to insert data into the table.
      Inserting data to the table succeeded.
      Start to query table data.
      Query result :
      employees_infoa.id    employees_infoa.age    employees_infoa.name
      1    31    SJK
      2    25    HS
      3    28    HT
      
      Querying table data succeeded.
      Start to delete the table.
      Table deleted successfully.
      =========================== Hive Example End ===========================

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