android http 通信实例(未能正常运行，待后续完善)

浅浅的花香味﹌ 2022-01-13 23:57 148阅读 0赞

[2019独角兽企业重金招聘Python工程师标准>>> ][2019_Python_] ![hot3.png][]

主布局文件：

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="这是一个HTTP通信方式的示例"/> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="通过get方式获取数据" android:id="@+id/bt_get"/> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="通过post方式获取数据" android:id="@+id/bt_post"/> <TextView android:layout_width="fill_parent" android:layout_height="fill_parent" android:id="@+id/tv_content"/> </LinearLayout>

主活动类HttpMainActivity.java:

package com.example.ch10; import java.util.ArrayList; import java.util.List; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import com.example.baseexample.R; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; public class HttpMainActivity extends Activity { private TextView tv_content; private Button bt_get,bt_post; public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.ch10_httpmain); tv_content = (TextView)findViewById(R.id.tv_content); bt_get = (Button)findViewById(R.id.bt_get); bt_post = (Button)findViewById(R.id.bt_post); bt_get.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View v) { try{ final String httpUrl = "http://192.168.1.100:8081"; HttpGet httpRequest = new HttpGet(httpUrl); HttpClient httpClient = new DefaultHttpClient(); HttpResponse httpResponse = httpClient.execute(httpRequest); if(httpResponse.getStatusLine().getStatusCode()==HttpStatus.SC_OK){ String strResult = EntityUtils.toString(httpResponse.getEntity()); tv_content.setText(strResult); }else{ tv_content.setText("请求错误"); } }catch(Exception e){ Toast.makeText(HttpMainActivity.this, e.getMessage(), Toast.LENGTH_LONG).show(); } } }); bt_post.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View v) { try{ final String httpUrl = "http://10.0.2.2:8080/WebDemo/UI/httptest.jsp"; HttpPost httpRequest = new HttpPost(httpUrl); List<NameValuePair> param = new ArrayList<NameValuePair>(); param.add(new BasicNameValuePair("par", "Post Type:abcdef")); HttpEntity entity = new UrlEncodedFormEntity(param,"utf-8"); httpRequest.setEntity(entity); HttpClient httpClient = new DefaultHttpClient(); HttpResponse httpResponse = httpClient.execute(httpRequest); if(httpResponse.getStatusLine().getStatusCode()==HttpStatus.SC_OK){ String strResult = EntityUtils.toString(httpResponse.getEntity()); tv_content.setText(strResult); }else{ tv_content.setText("请求错误"); } }catch(Exception e){ Toast.makeText(HttpMainActivity.this, e.getMessage().toString(), Toast.LENGTH_LONG).show(); } } }); } }

添加访问Internet的权限：

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

转载于:https://my.oschina.net/u/2552902/blog/543850

[2019_Python_]: https://my.oschina.net/u/2663968/blog/3061697
[hot3.png]: /images/20220113/b1810f0e6926467b9dbade3ecb5f13b4.png