[英]POST request with JSONObject doesn't work, why?
我已經閱讀了很多解決方案,但是其中任何一種都可以使用,對我來說,這似乎是正確的,但是由於某些原因,它不是。 我試圖過帳Posteman表格,它可以正常工作,所以我的問題在以下代碼內:
public void sendPost() {
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
URL url = new URL("http://localhost:63443/metodo2");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
conn.setRequestProperty("Accept","application/json");
conn.setDoOutput(true);
conn.setDoInput(true);
JSONObject jsonParam = new JSONObject();
jsonParam.put("username", username.getText().toString());
jsonParam.put("password", password.getText().toString());
jsonParam.put("ANDROID_ID", ANDROID_ID);
Log.i("JSON", jsonParam.toString());
DataOutputStream os = new DataOutputStream(conn.getOutputStream());
os.writeBytes(jsonParam.toString());
os.flush();
os.close();
Log.i("STATUS", String.valueOf(conn.getResponseCode()));
Log.i("MSG" , conn.getResponseMessage());
conn.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
}
錯誤:
W/System.err: java.net.ConnectException: Failed to connect to localhost/127.0.0.1:63443
W/System.err: at com.android.okhttp.internal.io.RealConnection.connectSocket(RealConnection.java:143)
W/System.err: at com.android.okhttp.internal.io.RealConnection.connect(RealConnection.java:112)
W/System.err: at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:184)
W/System.err: at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:126)
W/System.err: at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:95)
W/System.err: at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:281)
W/System.err: at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:224)
W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:461)
W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:127)
W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:258)
W/System.err: at com.auth0.Tracker.MapsActivity$4.run(MapsActivity.java:272)
W/System.err: at java.lang.Thread.run(Thread.java:784)
有兩種可能性:
也許您的本地主機正在阻止執行請求
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