import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.net.URLEncoder;

import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;

public class TestHttpGetPostActivity extends Activity{private Button mButton01;private Button mButton02;private Button mButton03;private String data = null;private TextView mTextView;private Intent intent = new Intent();    @Overridepublic void onCreate(Bundle savedInstanceState)    {super.onCreate(savedInstanceState);        setContentView(R.layout.main);        mButton01 = (Button) findViewById(R.id.get);        mButton02 = (Button) findViewById(R.id.post);        mButton03 = (Button) findViewById(R.id.nothing);        mTextView = (TextView) findViewById(R.id.textview);        mButton01.setOnClickListener(listener);        mButton02.setOnClickListener(listener);        mButton03.setOnClickListener(listener);    }

private OnClickListener listener = new OnClickListener()    {        @Overridepublic void onClick(View v)        {switch (v.getId())            {// get请求                case R.id.get:try                    {                        String httpurl = "http://192.168.0.68:8090/Test/index.jsp?par=this-is-get-Method-request!";                        URL url;                        url = new URL(httpurl);if (url != null)                        {// 使用HttpURLConnection打开网络连接                            HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();                            InputStream inputStream = httpConnection.getInputStream();                            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));while (bufferedReader.readLine() != null)                            {                                data += bufferedReader.readLine() + "\n";                            }// 关闭inputStream                            inputStream.close();// 关闭http连接                            httpConnection.disconnect();                            System.out.println("data = " + data);if (data != null)                            {                                intent.putExtra("data", data);                                intent.setClass(TestHttpGetPostActivity.this, ShowHtmlContent.class);                                startActivity(intent);                            }else                            {                                mTextView.setText("data is NULL!");                            }                        }                    }catch (MalformedURLException e)                    {                        e.printStackTrace();                    }catch (IOException e)                    {                        mTextView.setText("url is NULL!");                        e.printStackTrace();                    }break;

// post请求                case R.id.post:try                    {                        String httpurl = "http://192.168.0.68:8090/Test/index.jsp";                        URL url;                        url = new URL(httpurl);if (url != null)                        {// 使用HttpURLConnection打开网络连接                            HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();// 因为是post请求，需要设置成true                            httpConnection.setDoInput(true);                            httpConnection.setDoOutput(true);// 设置post请求方式                            httpConnection.setRequestMethod("POST");// post请求不能使用缓存                            httpConnection.setUseCaches(false);                            httpConnection.setInstanceFollowRedirects(true);

// 配置本次连接的Content-type，配置为application/x-www-form-urlencoded                            httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");// 连接，从postUrl.openConnection()至此的配置必须要在connect之前完成// 要注意的是connection.getOutputSream会隐含地进行connect.urlConn.connect();// DataOutputSream流                            DataOutputStream outputStream = new DataOutputStream(httpConnection.getOutputStream());// 要上传的参数                            String content = "par=" + URLEncoder.encode("this is post request!", "gb2312");// 将要上传的内容写入流中                            outputStream.writeBytes(content);// 刷新，关闭                            outputStream.flush();                            outputStream.close();                            InputStream inputStream = httpConnection.getInputStream();                            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));while (bufferedReader.readLine() != null)                            {                                data += bufferedReader.readLine() + "\n";                            }// 关闭inputStream                            inputStream.close();// 关闭http连接                            httpConnection.disconnect();                            System.out.println("data = " + data);if (data != null)                            {                                intent.putExtra("data", data);                                intent.setClass(TestHttpGetPostActivity.this, ShowHtmlContent.class);                                startActivity(intent);                            }else                            {                                mTextView.setText("data is NULL!");                            }                        }                    }catch (MalformedURLException e)                    {                        e.printStackTrace();                    }catch (IOException e)                    {                        mTextView.setText("url is NULL!");                        e.printStackTrace();                    }break;case R.id.nothing:try                    {                        String httpurl = "http://192.168.0.68:8090/Test/index.jsp";                        URL url;                        url = new URL(httpurl);if (url != null)                        {// 使用HttpURLConnection打开网络连接                            HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();                            InputStream inputStream = httpConnection.getInputStream();                            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));while (bufferedReader.readLine() != null)                            {                                data += bufferedReader.readLine() + "\n";                            }// 关闭inputStream                            inputStream.close();// 关闭http连接                            httpConnection.disconnect();                            System.out.println("data = " + data);if (data != null)                            {                                intent.putExtra("data", data);                                intent.setClass(TestHttpGetPostActivity.this, ShowHtmlContent.class);                                startActivity(intent);                            }else                            {                                mTextView.setText("data is NULL!");                            }                        }                    }catch (MalformedURLException e)                    {                        e.printStackTrace();                    }catch (IOException e)                    {                        mTextView.setText("url is NULL!");                        e.printStackTrace();                    }break;            }        }    };}

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

public class ShowHtmlContent extends Activity{private TextView mTextView;

    @Overridepublic void onCreate(Bundle savedInstanceState)    {super.onCreate(savedInstanceState);        setContentView(R.layout.http);        mTextView = (TextView) findViewById(R.id.textview);        Intent intent = ShowHtmlContent.this.getIntent();        String dataString = intent.getStringExtra("data");if (dataString != null)        {            mTextView.setText(dataString);        }else        {            mTextView.setText("nothing to show!");        }    }}