fix(database/gdb): #3755 error parsing database link without port number (#3772)

Author: gqcn

database/gdb/gdb_core_config.go

@@ -276,12 +276,18 @@ func parseConfigNodeLink(node *ConfigNode) *ConfigNode {
 			node.Pass = match[3]
 			node.Protocol = match[4]
 			array := gstr.Split(match[5], ":")
-			if len(array) == 2 && node.Protocol != "file" {
-				node.Host = array[0]
-				node.Port = array[1]
-				node.Name = match[6]
-			} else {
+			if node.Protocol == "file" {
 				node.Name = match[5]
+			} else {
+				if len(array) == 2 {
+					// link with port.
+					node.Host = array[0]
+					node.Port = array[1]
+				} else {
+					// link without port.
+					node.Host = array[0]
+				}
+				node.Name = match[6]
 			}
 			if len(match) > 6 && match[7] != "" {
 				node.Extra = match[7]

database/gdb/gdb_z_mysql_internal_test.go

@@ -232,6 +232,22 @@ func Test_parseConfigNodeLink_WithType(t *testing.T) {
 		t.Assert(newNode.Charset, defaultCharset)
 		t.Assert(newNode.Protocol, `tcp`)
 	})
+	// #3755
+	gtest.C(t, func(t *gtest.T) {
+		node := &ConfigNode{
+			Link: "mysql:user:pwd@tcp(rdsid.mysql.rds.aliyuncs.com)/dbname?charset=utf8&loc=Local",
+		}
+		newNode := parseConfigNodeLink(node)
+		t.Assert(newNode.Type, `mysql`)
+		t.Assert(newNode.User, `user`)
+		t.Assert(newNode.Pass, `pwd`)
+		t.Assert(newNode.Host, `rdsid.mysql.rds.aliyuncs.com`)
+		t.Assert(newNode.Port, ``)
+		t.Assert(newNode.Name, `dbname`)
+		t.Assert(newNode.Extra, `charset=utf8&loc=Local`)
+		t.Assert(newNode.Charset, `utf8`)
+		t.Assert(newNode.Protocol, `tcp`)
+	})
 }
 
 func Test_Func_doQuoteWord(t *testing.T) {