java操作kudu之创建表格

第一步：pom依赖

第二步：创建类及编写代码

package com.kudu.test;

import org.apache.kudu.ColumnSchema;
import org.apache.kudu.Schema;
import org.apache.kudu.Type;
import org.apache.kudu.client.CreateTableOptions;
import org.apache.kudu.client.KuduClient;
import org.apache.kudu.client.KuduException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.util.ArrayList;

public class testKudu {
    private KuduClient kuduClient;
    //kudu master地址；
    private String kuduMaster;
    //kudu中的表名;
    private String kuduTable;
    //初始化方法
    @Before
    public void init(){
        kuduMaster = "主机:7051";
        kuduTable = "test2.student";
        KuduClient.KuduClientBuilder kuduClientBuilder = new KuduClient.KuduClientBuilder(kuduMaster);
        //指定客户端的集群的socket的超时时间
        kuduClientBuilder.defaultAdminOperationTimeoutMs(10000);
        //创建kuduClient
        kuduClient = kuduClientBuilder.build();
    }
    @Test
    public void creatTable() throws KuduException {
        //判断表是否存在
        if(!kuduClient.tableExists(kuduTable)){
            //指定表的schema信息
            ArrayList columnSchemas = new ArrayList();
            columnSchemas.add(new ColumnSchema.ColumnSchemaBuilder("id", Type.INT32).key(true).build());
            columnSchemas.add(new ColumnSchema.ColumnSchemaBuilder("name", Type.STRING).build());
            columnSchemas.add(new ColumnSchema.ColumnSchemaBuilder("age", Type.INT32).build());
            columnSchemas.add(new ColumnSchema.ColumnSchemaBuilder("sex", Type.INT32).build());
            Schema schema = new Schema(columnSchemas);
            //指定表的option属性
            CreateTableOptions tableOptions = new CreateTableOptions();
            //指定分区规则，采用哈希分区
            ArrayList partitionList = new ArrayList();
            partitionList.add("id");
            tableOptions.addHashPartitions(partitionList,6);
            //创建表（表名字，schema，表属性）
            kuduClient.createTable(kuduTable,schema,tableOptions);
        }
    }
    @After
    public void close() throws KuduException {
        if(kuduClient != null){
            kuduClient.close();
        }
    }

}