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

时间：2021-09-12 12:04:46
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

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