Android中使用Apache HttpClient-蒲公英云

Android中使用Apache HttpClient

Activity.xml

<?xml version=”1.0” encoding=”utf-8”?>

    <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:text="访问页面" android:id="@+id/button" android:onClick="accessSecret" />
    <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:text="登录" android:id="@+id/button2" android:onClick="showLogin" />
    <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/textView" android:text="Hello World!" />
    <WebView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/webView" android:layout_gravity="center_horizontal" />
</LinearLayout>

<?xml version=”1.0” encoding=”utf-8”?>

<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:orientation="horizontal">
    <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密码 " />
    <EditText android:id="@+id/password" android:layout_width="match_parent" android:layout_height="wrap_content" />
</LinearLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {

TextView response;
HttpClient httpClient;
WebView webView;
StringBuilder info = new StringBuilder();
Handler handler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        if (msg.what == 0x123) {

webView.loadDataWithBaseURL(null,info.toString(),”text/html”,”utf-8”,null);

        }
    }
};
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    httpClient = new DefaultHttpClient();
    response = (TextView) findViewById(R.id.textView);
    webView = (WebView) findViewById(R.id.webView);
}
public void accessSecret(View view) {
    response.setText("");
    new Thread(){
        @Override
        public void run() {
            HttpGet get = new HttpGet("http://helloworlds.top/Test/login.jsp");
            try {
                HttpResponse httpResponse = httpClient.execute(get);
                HttpEntity entity = httpResponse.getEntity();
                if (entity != null) {
                    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(entity.getContent()));
                    String line = null;
                    while ((line = bufferedReader.readLine()) != null) {
                        Message msg = new Message();
                        msg.what = 0x123;
                        msg.obj = line;
                        handler.sendMessage(msg);
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }.start();
}

    public void showLogin(View view) {
        final View loginDialog = getLayoutInflater().inflate(R.layout.login, null);
        new AlertDialog.Builder(MainActivity.this)
                .setTitle("登录系统")
                .setView(loginDialog)
                .setPositiveButton("登录", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        final String name = ((EditText) loginDialog.findViewById(R.id.username)).getText().toString();
                        final String pswd = ((EditText) loginDialog.findViewById(R.id.password)).getText().toString();
                        new Thread(){
                            @Override
                            public void run() {
                                HttpPost post = new HttpPost("http://www.helloworlds.top/Test/login.jsp");
                                List<NameValuePair> params = new ArrayList<NameValuePair>();
                                params.add(new BasicNameValuePair("name",name));
                                params.add(new BasicNameValuePair("pass",pswd));
                                try {
                                    post.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
                                    HttpResponse response = httpClient.execute(post);
                                    if (response.getStatusLine().getStatusCode() == 200) {
                                        String msg = EntityUtils.toString(response.getEntity());
                                        Looper.prepare();
                                        Message message = new Message();
                                        message.obj = msg;
                                        message.what = 0x123;
                                        handler.sendMessage(message);
                                        Looper.loop();
                                    }
                                } catch (UnsupportedEncodingException e) {
                                    e.printStackTrace();
                                } catch (ClientProtocolException e) {
                                    e.printStackTrace();
                                } catch (IOException e) {
                                    e.printStackTrace();
                                }
                            }
                        }.start();
                    }
                })
                .setNegativeButton("取消",null)
                .show();
    }
}