fix #298.

main.go

@@ -239,7 +239,14 @@ func main() {
 	cli.OnServerUpdated(func(bot *client.QQClient, e *client.ServerUpdatedEvent) {
 		log.Infof("收到服务器地址更新通知, 将在下一次重连时应用. 地址信息已储存到 servers.bin 文件")
 		_ = ioutil.WriteFile("servers.bin", binary.NewWriterF(func(w *binary.Writer) {
-			w.WriteUInt16(uint16(len(e.Servers)))
+			w.WriteUInt16(func() (c uint16) {
+				for _, s := range e.Servers {
+					if !strings.Contains(s.Server, "com") {
+						c++
+					}
+				}
+				return
+			}())
 			for _, s := range e.Servers {
 				if !strings.Contains(s.Server, "com") {
 					w.WriteString(s.Server)
@@ -250,18 +257,25 @@ func main() {
 	})
 	if global.PathExists("servers.bin") {
 		if data, err := ioutil.ReadFile("servers.bin"); err == nil {
-			r := binary.NewReader(data)
-			var addr []*net.TCPAddr
-			l := r.ReadUInt16()
-			for i := 0; i < int(l); i++ {
-				addr = append(addr, &net.TCPAddr{
-					IP:   net.ParseIP(r.ReadString()),
-					Port: int(r.ReadUInt16()),
-				})
-			}
-			if len(addr) > 0 {
-				cli.SetCustomServer(addr)
-			}
+			func() {
+				defer func() {
+					if pan := recover(); pan != nil {
+						log.Error("读取服务器地址时出现错误: %v", pan)
+					}
+				}()
+				r := binary.NewReader(data)
+				var addr []*net.TCPAddr
+				l := r.ReadUInt16()
+				for i := 0; i < int(l); i++ {
+					addr = append(addr, &net.TCPAddr{
+						IP:   net.ParseIP(r.ReadString()),
+						Port: int(r.ReadUInt16()),
+					})
+				}
+				if len(addr) > 0 {
+					cli.SetCustomServer(addr)
+				}
+			}()
 		}
 	}
 	rsp, err := cli.Login()