Merge pull request #3437 from taosdata/xiaoping/add_test_case

[TD-1360]<test>: add test case - read binary data using Java

src/connector/jdbc/src/test/java/com/taosdata/jdbc/QueryDataTest.java

+package com.taosdata.jdbc;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.Properties;
+import java.util.Random;
+
+import static org.junit.Assert.assertEquals;
+import java.util.Properties;
+import java.util.concurrent.Executors;
+import java.util.concurrent.*;
+
+import static org.junit.Assert.assertTrue;
+
+public class QueryDataTest extends BaseTest {
+
+    static Connection connection = null;
+    static Statement statement = null;
+    static String dbName = "test";
+    static String stbName = "meters";
+    static String host = "localhost";
+    static int numOfTables = 30;
+    final static int numOfRecordsPerTable = 1000;
+    static long ts = 1496732686000l;
+    final static String tablePrefix = "t";
+
+    @Before
+    public void createDatabase() throws SQLException {
+        try {
+            Class.forName("com.taosdata.jdbc.TSDBDriver");
+        } catch (ClassNotFoundException e) {
+            return;
+        }
+        
+        Properties properties = new Properties();
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, host);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
+                
+        statement = connection.createStatement();
+        statement.executeUpdate("drop database if exists " + dbName);
+        statement.executeUpdate("create database if not exists " + dbName);
+        statement.executeUpdate("use " + dbName);
+
+        String createTableSql = "create table " + stbName + "(ts timestamp, name binary(6))";  
+        statement.executeUpdate(createTableSql); 
+    }
+    
+    @Test
+    public void testQueryBinaryData() throws SQLException{                
+                
+        String insertSql = "insert into "  + stbName + " values(now, 'taosda')";
+        System.out.println(insertSql);        
+
+        statement.executeUpdate(insertSql);
+
+        String querySql = "select * from " + stbName;
+        ResultSet rs = statement.executeQuery(querySql); 
+
+        while(rs.next()) {
+            String name = rs.getString(2) + "001";
+            System.out.println("name = " + name);
+            assertEquals(name, "taosda001");
+        }
+        rs.close();        
+    }
+
+
+    @After
+    public void close() throws Exception {        
+        statement.close();
+        connection.close();
+        Thread.sleep(10);
+    }
+    
+}
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