diff --git a/src/connector/jdbc/src/test/java/TestPreparedStatement.java b/src/connector/jdbc/src/test/java/TestPreparedStatement.java
index 2e387206a41997eb629ead85b55fef9320ea7d14..1edb957493183c407b668bd68532e83fa1a64dba 100644
--- a/src/connector/jdbc/src/test/java/TestPreparedStatement.java
+++ b/src/connector/jdbc/src/test/java/TestPreparedStatement.java
@@ -12,7 +12,7 @@ public class TestPreparedStatement {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
-            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/?user=root&password=taosdata", properties);
+            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/", properties);
             String rawSql = "select * from test.log0601";
 //            String[] params = new String[]{"ts", "c1"};
             PreparedStatement pstmt = (TSDBPreparedStatement) connection.prepareStatement(rawSql);
diff --git a/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java b/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
index f7e0e78441a9c2457a57605fe71e70a5dee609c2..39a08f0fe98a279e62ca07f20047813edeab56db 100644
--- a/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
+++ b/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
@@ -13,7 +13,7 @@ public class TestTSDBDatabaseMetaData {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
-            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/?user=root&password=taosdata", properties);
+            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/", properties);
             dbMetaData = connection.getMetaData();
             resSet = dbMetaData.getCatalogs();
             while(resSet.next()) {
diff --git a/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java b/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
index df730efa69f5937b938f2556d39517a0aa15b3bb..47acb200649be4c8c6af5817c2ef4c074a2a3fa0 100644
--- a/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
+++ b/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
@@ -3,7 +3,6 @@ import com.taosdata.jdbc.TSDBDriver;
 import com.taosdata.jdbc.TSDBResultSet;
 import com.taosdata.jdbc.TSDBSubscribe;
 
-import java.sql.Connection;
 import java.sql.DriverManager;
 import java.util.Properties;
 
@@ -17,12 +16,10 @@ public class TestTSDBSubscribe {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
 
-        String cs = String.format("jdbc:TAOS://%s:0/%s?user=root&password=taosdata", host, database);
+        String cs = String.format("jdbc:TAOS://%s:0/%s", host, database);
         return (TSDBConnection)DriverManager.getConnection(cs, properties);
     }
 
-
-
     public static void main(String[] args) throws Exception {
         String usage = "java -Djava.ext.dirs=../ TestTSDBSubscribe [-host host] <-db database> <-topic topic> <-sql sql>";
         if (args.length < 2) {
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
index cb78a5ca0eea5d780392fca95c29fe364ffcdbc3..c49293c96b568d70644f548722cf83374c430949 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
@@ -40,8 +40,7 @@ public class BatchInsertTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
                 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
index 3fc8913ca3d56b7fb492b0ff20ddd85d474c901a..a54ece4eadc54e930a4af4faddb58dfef3ceb25a 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
@@ -29,16 +29,14 @@ public class ConnectionTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         assertTrue(null != connection);
         statement = connection.createStatement();
         assertTrue(null != statement);
 
         // try reconnect
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         try {
             statement.execute("create database if not exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
index 4c4d56020d8ea64e415001be9604808c5418b2af..284af3dfe75f7c436ec2ce875714afc235c525d8 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
@@ -26,8 +26,7 @@ public class DatabaseMetaDataTest extends BaseTest {
         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/" + "?user=root&password=taosdata",
-                properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         String sql = "drop database if exists " + dbName;
         statement = (TSDBPreparedStatement) connection.prepareStatement(sql);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
index 016eff1a359ccdb629dc9c27618ed3bee6091511..dbe16d9fea33be117cfa93a3ecd9a1ff4bd12cd8 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
@@ -28,8 +28,7 @@ public class ImportTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
index d391771269e57e602988e0857d49163f3a101372..2cf88f6630ac8806c9f5ce01ea5ac51e9bc6b633 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
@@ -33,8 +33,7 @@ public class PreparedStatementTest extends BaseTest {
         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/" + "?user=root&password=taosdata",
-                properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/",properties);
 
         String sql = "drop database if exists " + dbName;
         statement = (TSDBPreparedStatement) connection.prepareStatement(sql);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
index a0b9c051c6241a32a60e4b12aa85b1f52ec42672..8067c547df148587766d87e204f5abad2bfb659d 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
@@ -35,8 +35,7 @@ public class ResultSetTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
index de21cc6195baeb41271b198ccbd1302635c0c030..1844a92b471b8c6faf593de269ca337cc01b2cec 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
@@ -28,8 +28,7 @@ public class SelectTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
index c1321d08fc7a46fc724c81bbd44d790edbe03265..6e01fb7c349bbab73fcc6878d85330ac39de2cfc 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
@@ -31,8 +31,7 @@ public class StableTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("create database if not exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
index 4fe5c39486edfdbdf015cc0a44d7917dbdd79749..db7b8c8cb14cbc0d1ae5a5a3a3bf8df590c4bc2a 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
@@ -30,8 +30,7 @@ public class StatementTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
index 2dc27adab72f1664b951c658209809a258b3a730..07b43d1227a55538026e3c7d8d35d1e6f5c9a416 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
@@ -32,8 +32,7 @@ public class SubscribeTest extends BaseTest {
         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/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("create database if not exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBDriverTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBDriverTest.java
index 9ea5a431a5ef6dca232467aa80d430c6ac33dd69..a0981063a5052f04b849b2187a78352a2c2560be 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBDriverTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBDriverTest.java
@@ -12,7 +12,7 @@ public class TSDBDriverTest {
     @Test
     public void urlParserTest() throws SQLException {
         TSDBDriver driver = new TSDBDriver();
-        String url = "jdbc:TSDB://127.0.0.1:0/db?user=root&password=your_password";
+        String url = "jdbc:TSDB://127.0.0.1:0/db";
 
         Properties properties = new Properties(); 
         driver.parseURL(url, properties);