Merge pull request #4846 from taosdata/hotfix/TD-2286

Hotfix/td 2286

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/ConnectWrongDatabaseTest.java

+package com.taosdata.jdbc.cases;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+public class ConnectWrongDatabaseTest {
+
+    @Test
+    public void connect() {
+        try {
+            Class.forName("com.taosdata.jdbc.TSDBDriver");
+            DriverManager.getConnection("jdbc:TAOS://localhost:6030/wrong_db?user=root&password=taosdata");
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        } catch (SQLException e) {
+            System.out.println(e.getMessage());
+            Assert.assertEquals("TDengine Error: Invalid database name", e.getMessage());
+        }
+    }
+
+}

tests/examples/JDBC/JDBCDemo/pom.xml

@@ -48,4 +48,12 @@
         </plugins>
     </build>
 
+    <dependencies>
+        <dependency>
+            <groupId>com.taosdata.jdbc</groupId>
+            <artifactId>taos-jdbcdriver</artifactId>
+            <version>2.0.15</version>
+        </dependency>
+    </dependencies>
+
 </project>

tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/JDBCDemo.java

@@ -5,7 +5,7 @@ import java.util.Properties;
 
 public class JDBCDemo {
     private static String host;
-    private static String driverType;
+    private static String driverType = "jni";
     private static final String dbName = "test";
     private static final String tbName = "weather";
     private Connection connection;
@@ -21,7 +21,7 @@ public class JDBCDemo {
             }
         }
 
-        if (host == null || driverType == null) {
+        if (host == null) {
             printHelp();
         }