从android发送帖子请求

Question

我已经奋斗了几个小时。 我一直在尝试从我的android应用程序发出发布请求。 我发现我不能只从主线程发出请求，所以我发现我可以将其放在可运行的线程中。 我偷偷地寻找答案，尝试了很多人使用的方法，这些方法对别人有用，但对我来说却没有。 我所理解的是这个（对我不起作用）：

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();

            }
    }
});
}

我允许它访问互联网，所以：

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

服务器端脚本api可以正常工作，因为我只是在Web应用程序中使用它。

有人可以指出我正确的方向吗？ 我无能为力。 错误可能在哪里？ （我必须从apache.com下载http库，并将其包含在我的gradle中-必须添加一个依赖项编译'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'

}）有没有简单的方法？ 还发现了有关okhttp库的信息，我将尝试实现它，但是我对gradle和导入外部库确实不满意。

这就是我得到的：

 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

请帮忙。 :)所有帮助非常感谢。

Answer 1

不确定您的错误。
但对于您的问题：

有没有简单的方法？ 还发现了有关okhttp库的信息，

Android网络库的比较：OkHTTP，Retrofit，Volley是一本很漂亮的文章，它比较了每个因素上的所有可用网络库。 永远不要考虑自己构造标题，正文和解析响应。 重试，取消正在进行的请求，缓存等也都可以通过库轻松完成。 而翻新在各个方面都至关重要。 我们正在使用它，这很好。 它支持JSON，XML，Jackson，Moshi，Protobuf以及Wire数据格式。 您需要做的就是创建请求主体模型类和响应模型。 看一看Retrofit入门文档 。

Answer 2

好。 首先，谢谢大家的回答。 :)很有帮助。 我刚刚将okhttp库导入到项目中，从现在开始我将使用它。 似乎很容易。 再次感谢。

愿代码与大家同在！

顺祝商祺