es实现sql查询

1：引入jar

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.15</version>
</dependency>

2：引入

elasticsearch-sql-6.2.4.0.jar

3：Spring boot 需要在pom.xml中配置 elasticsearch-sql-6.2.4.0.jar

<dependency>
<groupId>Ice</groupId>
<artifactId>Ice</artifactId>
<version>1.0</version>
<scope>system</scope>
<systemPath>${basedir}/lib/elasticsearch-sql-6.2.4.0.jar</systemPath>
</dependency>

4：实现

public static void testJDBC() throws Exception {
   Connection connection = ConnectionUtils.ConnectionUtils();
   String sql = "select emac from [] ";
   sql = sql.replaceAll("\\[[^]]*]", "123456_es_mac_v3_201807");
   // .replaceAll("\\$begin", begin)
   //.replaceAll("\\$end", end);
   PreparedStatement ps = connection.prepareStatement(sql);
   ResultSet resultSet = ps.executeQuery();
   while (resultSet.next()) {
   System.out.println(resultSet.getString("emac"));
   }

   ps.close();
   connection.close();
   resultSet.close();
   }

5：引入的类

   public static Connection ConnectionUtils () {
               Connection connection=null ;
               try {
                   Properties properties = new Properties();
           properties.put("url", "jdbc:elasticsearch://119.188.98.7:10902,119.188.98.7:11930,119.188.98.7:12930/");
           DruidDataSource dds = (DruidDataSource) ElasticSearchDruidDataSourceFactory.createDataSource(properties);
           dds.setInitialSize(1);
           connection = dds.getConnection();
               } catch (Exception e) {
                   e.printStackTrace();
                   // TODO: handle exception
               }

       return connection;
           }

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