android平台HttpGet、HttpPost请求实例

2020-04-11 11:50:34

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使用HttpClient中的HttpGet()方法进行http通信的实例：

复制代码代码如下:

/**
*description：Android HttpGet()
*authour:YanEr・Gates
*website://www.VeVB.COm
*/

package me.gogogoog;

import java.io.IOException;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class MyHttpGetActivity extends Activity{
/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.result);

        TextView resultText = (TextView) this.findViewById(R.id.resultText);

String username="username";
String password="password";

        String httpUrl = "http://192.168.1.90:8080/AndroidLogin/loginAction.do?method=login&username="+username+"&password="+password;
        //创建httpRequest对象
        HttpGet httpRequest = new HttpGet(httpUrl);
  try
  {
   //取得HttpClient对象
   HttpClient httpclient = new DefaultHttpClient();
   //请求HttpClient，取得HttpResponse
   HttpResponse httpResponse = httpclient.execute(httpRequest);
   //请求成功
   if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK)
   {
    //取得返回的字符串
    String strResult = EntityUtils.toString(httpResponse.getEntity());
    resultText.setText(strResult);
   }
   else
   {
    resultText.setText("请求错误!");
   }
  }
  catch (ClientProtocolException e)
  {
   resultText.setText(e.getMessage().toString());
  }
  catch (IOException e)
  {
   resultText.setText(e.getMessage().toString());
  }
  catch (Exception e)
  {
   resultText.setText(e.getMessage().toString());
  }
    }
}

使用HttpClient中的HttpPost()方法进行http通信的实例：

复制代码代码如下:

/**
*description：Android HttpPost()
*authour:YanEr・Gates
*website://www.VeVB.COm
*/
package me.gogogoog;

import java.io.IOException;

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.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 org.apache.http.util.EntityUtils;
import android.app.Activity;
import android.widget.TextView;

public class ResultActivity extends Activity{

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.result);

        TextView resultText = (TextView) this.findViewById(R.id.resultText);
        String username="username";
        String password="password";
        String httpUrl = "http://192.168.1.90:8080/AndroidLogin/loginAction.do?method=login";

        //创建httpRequest对象
        HttpPost httpRequest = new HttpPost(httpUrl);

        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("username", username));
        params.add(new BasicNameValuePair("password", password));

        try{
            //设置字符集
            HttpEntity httpentity = new UrlEncodedFormEntity(params, "gb2312");

//请求httpRequest
httpRequest.setEntity(httpentity);

//取得默认的HttpClient
HttpClient httpclient = new DefaultHttpClient();

//取得HttpResponse
HttpResponse httpResponse = httpclient.execute(httpRequest);

            //HttpStatus.SC_OK表示连接成功
            if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK){
                //取得返回的字符串
                String strResult = EntityUtils.toString(httpResponse.getEntity());
                resultText.setText(strResult);
            }else{
                resultText.setText("请求错误!");
            }
        }catch (ClientProtocolException e){
            resultText.setText(e.getMessage().toString());
        } catch (IOException e){
            resultText.setText(e.getMessage().toString());
        }catch (Exception e){
            resultText.setText(e.getMessage().toString());
        }
    }
}