增加tcping的兼容性处理代码

server/utils/util_test.go

@@ -22,7 +22,14 @@ func TestTcping(t *testing.T) {
 
 	ip6res := utils.Tcping(localhost6, 9999)
 	assert.Equal(t, true, ip6res)
+
+	ip4resWithBracket := utils.Tcping("["+localhost4+"]", 9999)
+	assert.Equal(t, true, ip4resWithBracket)
+
+	ip6resWithBracket := utils.Tcping("["+localhost6+"]", 9999)
+	assert.Equal(t, true, ip6resWithBracket)
+
 	defer func() {
-		conn.Close()
+		_ = conn.Close()
 	}()
 }

server/utils/utils.go

@@ -85,13 +85,20 @@ func Tcping(ip string, port int) bool {
 	var (
 		conn    net.Conn
 		err     error
+		address string
 	)
 	strPort := strconv.Itoa(port)
-	if conn, err = net.DialTimeout("tcp", fmt.Sprintf("[%s]:%s", ip, strPort), 2*time.Second); err != nil {
+	if strings.HasPrefix(ip, "[") && strings.HasSuffix(ip, "]") {
+		// 如果用户有填写中括号就不再拼接
+		address = fmt.Sprintf("%s:%s", ip, strPort)
+	} else {
+		address = fmt.Sprintf("[%s]:%s", ip, strPort)
+	}
+	if conn, err = net.DialTimeout("tcp", address, 2*time.Second); err != nil {
 		return false
 	}
 	defer func() {
-		conn.Close()
+		_ = conn.Close()
 	}()
 	return true
 }