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我的代碼snipet有點問題。我寫了一個例子來學習項目的TCP Socket通信。目前我可以發送TCP套接字並閱讀答案,但我想在其他軟件部分使用該答案。爲此,我嘗試使用變量socketmessage,但這不起作用。有沒有人有我的問題的答案?非常感謝Node.js讀取TCPSocket並寫入變量
var net = require('net');
var client = new net.Socket();
var HOST='127.0.0.1';
var PORT='20000';
var MSG="{\"REQUEST\":\"STATUS\"}";
var socketmessage;
socketmessage=getSocketMessage(MSG);
console.log ("Socket Message: " + socketmessage);
function getSocketMessage(tcpmsg){
var outData;
client.connect(PORT, HOST, function() {
console.log("Client: " + tcpmsg);
client.write(tcpmsg);
});
client.setTimeout(5000, function() { client.destroy(); });
client.on('data', function(data) {
console.log('Server: ' + data);
outData = data.toString('utf8');
console.log ("Socketmessage: " + outData);
client.destroy();
});
//Add a 'close' event handler for the client socket
client.on('close', function() {
console.log('Connection closed');
});
// Add a 'error' event handler for the client socket
client.on('error', function(error) {
console.log('Error Connection: ' + error);
});
return outData;
}
終端: 插座消息:未定義 客戶:{ 「請求」: 「STATUS」} 服務器:{ 「狀態」:0.000000}