最近我完成了我的第一個(gè)客戶端-服務(wù)器項(xiàng)目。它實(shí)際上很酷，但我有一個(gè)小問題。沒有消息，但我想要帶有完整名稱和密碼字段的 JSON。我正在將GSONjar 庫(kù)用于JsonObject.我的服務(wù)器public class Server extends Thread {private static final int port = 8607;protected static String server_IP;public static void main(String[] args) { try { InetAddress iAddress = InetAddress.getLocalHost(); server_IP = iAddress.getHostAddress(); System.out.println("Server IP : " + server_IP); } catch (UnknownHostException e){ } try { //Server ServerSocket serverSocket = new ServerSocket(port); System.out.println("Server has started"); //Accepting client System.out.println("Waiting"); Socket socket = serverSocket.accept(); System.out.println("Client has been added"); //Send message to client BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())); bw.write("Connection accepted"); bw.newLine(); bw.flush(); //receive json from client BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream())); String json_string = br.readLine(); JsonParser jsonParser = new JsonParser(); JsonObject user = jsonParser.parse(json_string).getAsJsonObject(); System.out.println("JSON: " +user.toString()); } catch (IOException e) { e.printStackTrace(); } }}我的服務(wù)器控制臺(tái)Server IP : 192.168.123.2Server has startedWaitingClient has been addedJSON: {"name":""}Process finished with exit code 0
1 回答
慕蓋茨4494581
TA貢獻(xiàn)1850條經(jīng)驗(yàn) 獲得超11個(gè)贊
你的問題在這里：
name = editName.getText().toString();
password = editPassword.getText().toString();
當(dāng)您還沒有機(jī)會(huì)在字段中輸入任何文本時(shí)，您已經(jīng)在方法中分配了name和password變量onCreate()。它們將永遠(yuǎn)是空的。
您應(yīng)該做的是將這兩行移動(dòng)onClick(View)到點(diǎn)擊偵聽器的方法中。像這樣：
send_todata.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
name = editName.getText().toString();
password = editPassword.getText().toString();
new SendDataToServer().execute(name, password);
}
});
這樣，您將分配 2 個(gè)變量，name并且password僅當(dāng)您單擊按鈕時(shí)。那時(shí)，您可能會(huì)在 2 個(gè)輸入字段中找到一些內(nèi)容。
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