Configuring and Importing a Sample Projects

Context

Obtain the IoTDB development sample project and import the project to IntelliJ IDEA to learn the sample project.

Procedure

1. Obtain the sample project from the src/iotdb-examples directory in the directory where the sample code is decompressed by referring to Obtaining the MRS Application Development Sample Project. You can select a sample based on the actual service scenario. For details about the samples, see IoTDB Sample Project.
2. To debug iotdb-flink-example, iotdb-jdbc-example, iotdb-kafka-example, or iotdb-session-example sample code on the local Windows environment, perform the following operations:
   • Store the authentication files user.keytab and krb5.conf obtained in Preparing for User Authentication and SSL certificate file truststore.jks to the ..\src\main\resources directory of each sample project.
   • Configure the com.huawei.bigdata.iotdb.IoTDBProperties class in the ..\src\main\resources directory of each sample project, change the value of proPath in the IoTDBProperties() method to the absolute path of the iotdb-example.properties file.
     Figure 1 Configuring the proPath parameter
     

3. Modify the iotdb-example.properties file in the ..\src\main\resources directory of each sample project.

   iotdb_ssl_enable=true
   jdbc_url=jdbc:iotdb://IP address of the IoTDBServer instance:IoTDBServer RPC port
   # Username for authentication
   username=developuser
   # User password for authentication. It is recommended that the password be stored in ciphertext and decrypted when being used.
   password=xxx
   # Location of the krb5.conf file in the downloaded authentication credential. In Linux, you are advised to use the krb5.conf file that has been uploaded to the IoTDB client installation directory/IoTDB/iotdb/conf directory. In Windows, use \\ to specify the absolute path of the file.
   krb5_conf_dest=IoTDB client installation directory/iotdb/conf/krb5.conf
   # Location of the user.keytab file in the downloaded authentication credential. In Linux, you are advised to use the user.keytab file that has been uploaded to the IoTDB client installation directory/IoTDB/iotdb/conf directory. In Windows, use \\ to specify the absolute path of the file.
   key_tab_dest=IoTDB client installation directory/IoTDB/iotdb/conf/user.keytab
   # Username corresponding to user.keytab followed by @HADOOP.COM
   client_principal=developuser@HADOOP.COM
   # Location of the truststore file. In Linux, you are advised to use the truststore.jks file that has been uploaded to the IoTDB client installation directory/IoTDB/iotdb/conf directory. In Windows, use \\ to specify the absolute path of the file.
   iotdb_ssl_truststore=IoTDB client installation directory/IoTDB/iotdb/conf/truststore.jks

4. After the IntelliJ IDEA and JDK tools are installed, configure the JDK in IntelliJ IDEA.
   1. Start IntelliJ IDEA and choose Configure.
      Figure 2 Quick Start
      
   2. Select Structure for New Projects from the drop-down list.
      Figure 3 Configure
      
   3. On the displayed Project Structure for New Projects page, select SDKs, click the plus sign (+), and click JDK.
      Figure 4 Project Structure for New Projects
      
   4. On the Select Home Directory for JDK page that is displayed, select the JDK directory and click OK.
      Figure 5 Select Home Directory for JDK
      
   5. After selecting the JDK, click OK to complete the configuration.
      Figure 6 Completing the JDK configuration
      
      

      The operation procedure may vary according to the IDEA version.

5. Import the sample project to the IntelliJ IDEA development environment.
   1. Start the IntelliJ IDEA, and click Open or Import on the quick start page.

      For the IDEA tool that has been used, you can choose File > Import project... on the main interface to import the sample project.

      Figure 7 Open or Import (quick start page)
      
   2. Select the pom.xml file of iotdb-jdbc-example in the sample project folder iotdb-examples, and click OK.

      

      Select Open as Project.

      

   3. After the import is complete, check that the imported sample projects are displayed on the IDEA home page.
      Figure 8 Successfully importing sample projects
      

6. Set the Maven version used by the project.
   1. Choose File > Settings... from the main menu of IntelliJ IDEA.
      Figure 9 Settings
      
   2. Choose Build, Execution, Deployment > Maven and set Maven home directory to the Maven version installed on the local host.
      Configure User settings file and Local repository based on the site requirements.

      Figure 10 Selecting the local Maven installation directory
      
   3. Click Apply and OK to complete the configuration.