add default port and support dbname for uri, 19530 by default, 443 for serverless (#1191)

Signed-off-by: Nian Liu <nian.liu@zilliz.com>

src/main/java/io/milvus/v2/client/ConnectConfig.java

@@ -19,14 +19,17 @@
 
 package io.milvus.v2.client;
 
+import static io.milvus.common.constant.MilvusClientConstant.MilvusConsts.CLOUD_SERVERLESS_URI_REGEX;
 import lombok.Builder;
 import lombok.Data;
 import lombok.NonNull;
 import lombok.experimental.SuperBuilder;
+import org.apache.commons.lang3.StringUtils;
 
 import javax.net.ssl.SSLContext;
 import java.net.URI;
 import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
 
 @Data
 @SuperBuilder
@@ -61,13 +64,17 @@ public class ConnectConfig {
     private SSLContext sslContext;
 
     public String getHost() {
-        URI uri = URI.create(this.uri);
-        return uri.getHost();
+        io.milvus.utils.URLParser urlParser = new io.milvus.utils.URLParser(this.uri);
+        return urlParser.getHostname();
     }
 
     public int getPort() {
-        URI uri = URI.create(this.uri);
-        return uri.getPort();
+        io.milvus.utils.URLParser urlParser = new io.milvus.utils.URLParser(this.uri);
+        int port = urlParser.getPort();
+        if (Pattern.matches(CLOUD_SERVERLESS_URI_REGEX, this.uri)) {
+            port = 443;
+        }
+        return port;
     }
 
     public String getAuthorization() {
@@ -79,6 +86,11 @@ public class ConnectConfig {
         return null;
     }
 
+    public String getDbName() {
+        io.milvus.utils.URLParser urlParser = new io.milvus.utils.URLParser(this.uri);
+        return StringUtils.isNotEmpty(urlParser.getDatabase()) ? urlParser.getDatabase() : this.dbName;
+    }
+
     public Boolean isSecure() {
         if(uri.startsWith("https")) {
             return true;