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4G/code/core/linksocket.lua

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+require "socket"
+require "log"
+
+-- 目标服务器IP和端口
+local ip, port = "121.43.69.62", "8767"
+-- 连接数量
+local clientCount = 1
+-- 存储所有客户端
+local clients = {}
+
+-- 初始化多个socket连接
+for i = 1, clientCount do
+    local client = {
+        id = i,
+        socket = nil,
+        connected = false
+    }
+
+    -- 为每个socket创建独立的连接任务
+    sys.taskInit(function()
+        while true do
+            while not socket.isReady() do sys.wait(1000) end
+            client.socket = socket.tcp()
+            log.debug("Client " .. client.id .. ": Connecting to " .. ip .. ":" .. port)
+            while not client.socket:connect(ip, port) do
+                log.warn("Client " .. client.id .. ": Connection failed, retrying...")
+                sys.wait(2000)
+            end
+            client.connected = true
+            log.debug("Client " .. client.id .. ": Connected successfully")
+            -- 发送连接成功信息到串口
+            uart.write(1, "Socket " .. client.id .. " connected\r\n")
+
+            -- 保持连接并处理数据
+            while client.socket:asyncSelect(60, "ping") do end
+
+            client.connected = false
+            client.socket:close()
+            log.error("Client " .. client.id .. ": Disconnected")
+            -- 发送断开连接信息到串口
+        end
+    end)
+
+    -- 存储客户端
+    clients[i] = client
+end
+
+
+local function toHexcode(str) 
+    local hexcode = ""
+    for i = 1, #str do
+        hexcode = hexcode .. string.format("%02X", str:byte(i))
+    end
+    return hexcode
+end
+
+-- 测试代码，异步回调接收数据
+sys.subscribe("SOCKET_RECV", function(id)
+    -- 遍历所有客户端，找到对应的连接
+    for i, client in ipairs(clients) do
+        if client.socket and client.socket.id == id then
+            -- 转发到串口，添加socket标识，并清理数据
+            local data = client.socket:asyncRecv()
+            log.info("Client " .. client.id .. ": Received data: " .. toHexcode(data))
+            -- 转发到串口，添加socket标识
+            local frame = string.char(0x55) .. string.char(0xAA) .. string.char(0x01) .. string.char(i) .. string.char(#data) .. data .. string.char(0xAA) .. string.char(0x55)
+            uart.write(1, frame)
+           
+            break
+        end
+    end
+end)
+
+
+
+-- 发送数据到指定socket
+function sendToSocket(id_byte, msg)
+    if clients[id_byte] and clients[id_byte].socket and clients[id_byte].connected then
+        clients[id_byte].socket:asyncSend(msg)
+    else
+        log.error("Socket " .. id_byte .. " not connected or does not exist")
+    end
+end