從android發送帖子請求

Question

我已經奮斗了幾個小時。 我一直在嘗試從我的android應用程序發出發布請求。 我發現我不能只從主線程發出請求，所以我發現我可以將其放在可運行的線程中。 我偷偷地尋找答案，嘗試了很多人使用的方法，這些方法對別人有用，但對我來說卻沒有。 我所理解的是這個（對我不起作用）：

package com.example.matt.event;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;


public class lokacije extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.lokacije);
    thread.start();
}

Thread thread = new Thread(new Runnable(){
    @Override
    public void run()
    {
            HttpClient httpClient = new DefaultHttpClient();
            // replace with your url
            HttpPost httpPost = new HttpPost("http://www.awesomeholidays.com/login.php");


            //Post Data
            List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(2);
            nameValuePair.add(new BasicNameValuePair("username", "123"));
            nameValuePair.add(new BasicNameValuePair("password", "456"));


            //Encoding POST data
            try {
                httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
            } catch (UnsupportedEncodingException e) {
                Log.d("omg it doesn't work",e.toString());
                e.printStackTrace();
            }

            //making POST request.
            try {
                HttpResponse response = httpClient.execute(httpPost);
                // write response to log
                Log.d("Http Post Response:", response.toString());
            } catch (ClientProtocolException e) {
                // Log exception
                e.printStackTrace();
            } catch (IOException e) {
                // Log exception
                e.printStackTrace();

            }
    }
});
}

我允許它訪問互聯網，所以：

  <uses-permission android:name="android.permission.INTERNET"/>

服務器端腳本api可以正常工作，因為我只是在Web應用程序中使用它。

有人可以指出我正確的方向嗎？ 我無能為力。 錯誤可能在哪里？ （我必須從apache.com下載http庫，並將其包含在我的gradle中-必須添加一個依賴項編譯'org.apache.httpcomponents：httpclient：4.5'和一堆PackagingOptions {

    exclude 'META-INF/DEPENDENCIES'

    exclude 'META-INF/NOTICE'

    exclude 'META-INF/LICENSE'

    exclude 'META-INF/LICENSE.txt'

    exclude 'META-INF/NOTICE.txt'

}）有沒有簡單的方法？ 還發現了有關okhttp庫的信息，我將嘗試實現它，但是我對gradle和導入外部庫確實不滿意。

這就是我得到的：

 11-28 20:49:49.587 10450-10450/? D/dalvikvm: Late-enabling CheckJNI
 11-28 20:49:50.008 10450-10450/com.example.matic.eventer W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
 11-28 20:49:50.008 10450-10450/com.example.matic.eventer I/dalvikvm: Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.internal.view.WindowCallbackWrapper.onSearchRequested
 11-28 20:49:50.008 10450-10450/com.example.matic.eventer W/dalvikvm: VFY: unable to resolve interface method 14051: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
 11-28 20:49:50.008 10450-10450/com.example.matic.eventer D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
 11-28 20:49:50.018 10450-10450/com.example.matic.eventer I/dalvikvm: Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.internal.view.WindowCallbackWrapper.onWindowStartingActionMode
 11-28 20:49:50.018 10450-10450/com.example.matic.eventer W/dalvikvm: VFY: unable to resolve interface method 14055: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
 11-28 20:49:50.018 10450-10450/com.example.matic.eventer D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
 11-28 20:49:50.238 10450-10450/com.example.matic.eventer I/dalvikvm: Could not find method android.view.ViewGroup.onRtlPropertiesChanged, referenced from method android.support.v7.widget.Toolbar.onRtlPropertiesChanged
 11-28 20:49:50.248 10450-10450/com.example.matic.eventer W/dalvikvm: VFY: unable to resolve virtual method 13952: Landroid/view/ViewGroup;.onRtlPropertiesChanged (I)V
 11-28 20:49:50.248 10450-10450/com.example.matic.eventer D/dalvikvm: VFY: replacing opcode 0x6f at 0x0007
 11-28 20:49:50.268 10450-10450/com.example.matic.eventer I/dalvikvm: Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
 11-28 20:49:50.268 10450-10450/com.example.matic.eventer W/dalvikvm: VFY: unable to resolve virtual method 402: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
 11-28 20:49:50.268 10450-10450/com.example.matic.eventer D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
 11-28 20:49:50.278 10450-10450/com.example.matic.eventer I/dalvikvm: Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
 11-28 20:49:50.278 10450-10450/com.example.matic.eventer W/dalvikvm: VFY: unable to resolve virtual method 424: Landroid/content/res/TypedArray;.getType (I)I
 11-28 20:49:50.278 10450-10450/com.example.matic.eventer D/dalvikvm: VFY:replacing opcode 0x6e at 0x0002
 11-28 20:49:50.438 10450-10450/com.example.matic.eventer D/libEGL: loaded /system/lib/egl/libEGL_mali.so
 11-28 20:49:50.458 10450-10450/com.example.matic.eventer D/libEGL:  loaded /system/lib/egl/libGLESv1_CM_mali.so
 11-28 20:49:50.458 10450-10450/com.example.matic.eventer D/libEGL: loaded /system/lib/egl/libGLESv2_mali.so
 11-28 20:49:50.498 10450-10454/com.example.matic.eventer D/dalvikvm: GC_CONCURRENT freed 198K, 9% free 9534K/10375K, paused 3ms+32ms, total 128ms
 11-28 20:49:50.518 10450-10450/com.example.matic.eventer D/OpenGLRenderer: Enabling debug mode 0
 11-28 20:49:54.722 10450-10450/com.example.matic.eventer E/SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
 11-28 20:49:54.722 10450-10450/com.example.matic.eventer E/SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
 11-28 20:49:56.514 10450-10583/com.example.matic.eventer D/Http Post Response:: org.apache.http.message.BasicHttpResponse@417e0af0

請幫忙。 :)所有幫助非常感謝。

Answer 1

不確定您的錯誤。
但對於您的問題：

有沒有簡單的方法？ 還發現了有關okhttp庫的信息，

Android網絡庫的比較：OkHTTP，Retrofit，Volley是一本很漂亮的文章，它比較了每個因素上的所有可用網絡庫。 永遠不要考慮自己構造標題，正文和解析響應。 重試，取消正在進行的請求，緩存等也都可以通過庫輕松完成。 而翻新在各個方面都至關重要。 我們正在使用它，這很好。 它支持JSON，XML，Jackson，Moshi，Protobuf以及Wire數據格式。 您需要做的就是創建請求主體模型類和響應模型。 看一看Retrofit入門文檔 。

Answer 2

好。 首先，謝謝大家的回答。 :)很有幫助。 我剛剛將okhttp庫導入到項目中，從現在開始我將使用它。 似乎很容易。 再次感謝。

願代碼與大家同在！

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