Java乔晓松-httpURLConnection、URL、httpClient、httpPost、httpGet之代码详解篇

package com.example.lesson09_login;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
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.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

@SuppressLint("HandlerLeak")
public class MainActivity extends Activity {

	public Button btn_get, btn_post;
	public EditText et_name, et_pass;
	public NetWorkUtil netWorkUtil;
	public Handler handler;
	public static final int GET = 1;
	public static final int POST = 2;
	public String name, pass, content;
	public String path = "http://172.22.64.18:8080/lesson09_login/csdn/UserAction_login.action";

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		btn_get = (Button) findViewById(R.id.btn_get);
		btn_post = (Button) findViewById(R.id.btn_post);

		et_name = (EditText) findViewById(R.id.et_name);
		et_pass = (EditText) findViewById(R.id.et_pass);

		netWorkUtil = new NetWorkUtil(this);

		handler = new Handler() {
			@Override
			public void handleMessage(Message msg) {
				super.handleMessage(msg);
				switch (msg.what) {
				case GET:
					Toast.makeText(MainActivity.this, "GET请求成功++++++++++",
							Toast.LENGTH_LONG).show();
					Log.v("MainActity", content);
					break;
				case POST:
					Toast.makeText(MainActivity.this, "POST请求成功----------",
							Toast.LENGTH_LONG).show();
					Log.v("MainActity", content);
					break;

				default:
					break;
				}
			}
		};
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	public void sendGet(View v) {
		if (!isEmpty()) {
			Toast.makeText(MainActivity.this, "用户名或密码不能为空...",
					Toast.LENGTH_LONG).show();
		} else {
			boolean flag = netWorkUtil.setNetWork();
			if (flag) {
				new Thread(new Runnable() {

					@Override
					public void run() {
						name = et_name.getText().toString();
						pass = et_pass.getText().toString();
						// sendGetRequest(path, name, pass);
						sendGetClient(path, name, pass);
						handler.sendEmptyMessage(GET);
					}

				}).start();
			}
		}
	}

	public void sendPost(View v) {
		if (!isEmpty()) {
			Toast.makeText(MainActivity.this, "用户名或密码不能为空...",
					Toast.LENGTH_LONG).show();
		} else {
			boolean flag = netWorkUtil.setNetWork();
			if (flag) {
				new Thread(new Runnable() {

					@Override
					public void run() {
						name = et_name.getText().toString();
						pass = et_pass.getText().toString();
						// sendPostRequest(path, name, pass);
						sendPostClient(path, name, pass);
						handler.sendEmptyMessage(POST);
					}

				}).start();
			}
		}
	}

	public boolean isEmpty() {
		boolean flag = false;
		if (TextUtils.isEmpty(et_name.getText().toString())
				|| TextUtils.isEmpty(et_pass.getText().toString())) {
			flag = false;
		} else {
			flag = true;
		}
		return flag;
	}

	@SuppressWarnings("unused")
	private void sendGetRequest(String path, String name, String pass) {
		String str = path + "?user.name=" + name + "&user.pass=" + pass;
		try {
			URL url = new URL(str);
			HttpURLConnection httpURLConnection = (HttpURLConnection) url
					.openConnection();
			httpURLConnection.setConnectTimeout(5000);
			httpURLConnection.setRequestMethod("GET");
			if (httpURLConnection.getResponseCode() == 200) {
				InputStream is = httpURLConnection.getInputStream();
				ByteArrayOutputStream bos = new ByteArrayOutputStream();
				byte[] buf = new byte[1024];
				int len = 0;
				while ((len = is.read(buf)) != -1) {
					bos.write(buf, 0, len);
				}
				byte[] data = bos.toByteArray();
				bos.flush();
				bos.close();
				is.close();
				content = new String(data);
				if (content.contains("gb2312")) {
					content = new String(data, "gb2312");
				}
			}
			httpURLConnection.disconnect();
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (ProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@SuppressWarnings("unused")
	private void sendPostRequest(String path, String name, String pass) {

		try {
			String data = "user.name=" + name + "&user.pass=" + pass;
			URL url = new URL(path);
			HttpURLConnection httpURLConnection = (HttpURLConnection) url
					.openConnection();
			httpURLConnection.setConnectTimeout(5000);
			httpURLConnection.setRequestMethod("POST");
			httpURLConnection.setDoOutput(true);
			httpURLConnection.setRequestProperty("Content-Type",
					"application/x-www-form-urlencoded");
			httpURLConnection.setRequestProperty("Content-Length",
					data.length() + "");
			OutputStream os = httpURLConnection.getOutputStream();
			byte[] buf = data.getBytes();
			os.write(buf);
			os.flush();
			os.close();
			if (httpURLConnection.getResponseCode() == 200) {
				InputStream is = httpURLConnection.getInputStream();
				ByteArrayOutputStream bos = new ByteArrayOutputStream();
				byte[] buf1 = new byte[1024];
				int len = 0;
				while ((len = is.read(buf1)) != -1) {
					bos.write(buf1, 0, len);
				}
				byte[] data1 = bos.toByteArray();
				bos.flush();
				bos.close();
				is.close();
				content = new String(data1);
			}
			httpURLConnection.disconnect();

		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public void sendGetClient(String path, String name, String pass) {
		try {
			String uri = path + "?user.name="
					+ URLEncoder.encode(name, "UTF-8") + "&user.pass="
					+ URLEncoder.encode(pass, "UTF-8");
			HttpClient httpClient = new DefaultHttpClient();
			HttpGet httpGet = new HttpGet(uri);

			HttpResponse httpResponse = httpClient.execute(httpGet);
			if (httpResponse.getStatusLine().getStatusCode() == 200) {
				InputStream is = httpResponse.getEntity().getContent();
				content = StringTool.isContent(is);
			}
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@SuppressWarnings("unused")
	public void sendPostClient(String path, String name, String pass) {
		HttpClient httpClient = new DefaultHttpClient();
		HttpPost httpPost = new HttpPost(path);
		List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
		parameters.add(new BasicNameValuePair("user.name", name));
		parameters.add(new BasicNameValuePair("user.pass", pass));
		UrlEncodedFormEntity entity = null;
		try {
			entity = new UrlEncodedFormEntity(parameters, "UTF-8");
			HttpResponse httpResponse = httpClient.execute(httpPost);
			if (httpResponse.getStatusLine().getStatusCode() == 200) {
				InputStream is = httpResponse.getEntity().getContent();
				content = StringTool.isContent(is);
			}
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

 

 

package com.example.lesson09_login;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * 2013-6-10 上午9:33:34
 * 
 * @author 乔晓松
 */
public class StringTool {

	public static String isContent(InputStream is) {
		String content = null;
		try {
			ByteArrayOutputStream bos = new ByteArrayOutputStream();
			byte[] buf = new byte[1024];
			int len = 0;
			while ((len = is.read(buf)) != -1) {
				bos.write(buf, 0, len);
			}
			byte[] data = bos.toByteArray();
			bos.flush();
			bos.close();
			is.close();
			content = new String(data);
		} catch (IOException e) {
			e.printStackTrace();
		}
		return content;
	}
}

此代码都是本人亲自测试成功的，如要源码请给我留言