Android与Tomcat远程访问

因为要做一个软件注册的功能，所以今天做了一个小例子，这里的服务器是自己的tomcat服务器，做过j2ee的应该是再熟悉不过了。

RegisterActivity.java

public class RegisterActivity extends Activity {
	private static final String uriConnection = "http://10.0.2.2:8080/Register/servlet/RegisterServlet";
	//private static final String uriConnection = "http://192.168.0.5:8080/Register/servlet/RegisterServlet";
	Button registerButton;
	Button registerLaterButton;
	ProgressDialog progressDialog;
	EditText firstText;
	EditText lastText;
	EditText emailText;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		setContentView(R.layout.register);
		super.onCreate(savedInstanceState);
		firstText = (EditText) findViewById(R.id.register_first_name_id);
		lastText = (EditText) findViewById(R.id.register_last_name_id);
		emailText = (EditText) findViewById(R.id.register_email_id);
		registerButton = (Button) findViewById(R.id.register_button_id);
		registerLaterButton = (Button) findViewById(R.id.register_later_button_id);
		registerButton.setOnClickListener(registerListener);
		registerLaterButton.setOnClickListener(registerLaterButtonListener);
	}
	Handler handler = new Handler() {
		public void handleMessage(Message msg) {
			progressDialog.dismiss();
			finish();
		};
	};
	View.OnClickListener registerListener = new View.OnClickListener() {
		@Override
		public void onClick(View v) {
			String firstName = firstText.getText().toString();
			String lastName = lastText.getText().toString();
			String emailName = emailText.getText().toString();
			progressDialog = ProgressDialog.show(RegisterActivity.this,
					"Register", "Registering waitting.....");
			registerToHost(firstName, lastName, emailName);
		}
	};
	// 处理客户端和服务器端的请求
	private void registerToHost(String firstName, String lastName,
			String emailName) {
		HttpPost httpRequest = new HttpPost(uriConnection);
		HttpResponse httpResponse = null;
		List<NameValuePair> params = new ArrayList<NameValuePair>();
		if (!firstName.equals("") && !lastName.equals("")
				&& !emailName.equals("")) {
			params.add(new BasicNameValuePair("firstName", firstName));
			params.add(new BasicNameValuePair("lastName", lastName));
			params.add(new BasicNameValuePair("emailName", emailName));
		}
		try {
			httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
			httpResponse = new DefaultHttpClient().execute(httpRequest);
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClientProtocolException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		// 处理从服务器短来的数据
		if (httpResponse.getStatusLine().getStatusCode() == 200) {
			System.out.println("Connection OK");
			handler.sendEmptyMessage(0);
			/*
			 * byte[] data = new byte[2048]; try { data =
			 * EntityUtils.toByteArray(httpResponse.getEntity()); } catch
			 * (IOException e) { // TODO Auto-generated catch block
			 * e.printStackTrace(); }
			 */
		}
	}
	View.OnClickListener registerLaterButtonListener = new View.OnClickListener() {
		@Override
		public void onClick(View v) {
			finish();
		}
	};
}

layout/register.xml:

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout android:orientation="vertical"
	android:id="@+id/registration_screen_layout_id" android:layout_width="fill_parent"
	android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android">
	<ScrollView android:scrollbarStyle="outsideInset"
		android:id="@+id/registration_screen_scroll_view_id"
		android:background="#ffffffff" android:layout_width="fill_parent"
		android:layout_height="fill_parent" android:layout_weight="1.0"
		xmlns:android="http://schemas.android.com/apk/res/android">
		<LinearLayout android:orientation="vertical"
			android:background="#ffffffff" android:layout_width="fill_parent"
			android:layout_height="wrap_content" xmlns:android="http://schemas.android.com/apk/res/android">
			<TextView android:textSize="14.0dip" android:textColor="#ff000000"
				android:gravity="left" android:id="@+id/registration_benefits_view_id"
				android:paddingLeft="30.0dip" android:paddingTop="10.0dip"
				android:paddingRight="30.0dip" android:paddingBottom="10.0dip"
				android:layout_width="fill_parent" android:layout_height="wrap_content"
				android:text="@string/STR_REGISTRATION_BENEFITS"
				android:layout_weight="0.0" />
			<EditText android:textSize="20.0dip" android:id="@+id/register_first_name_id"
				android:background="@android:drawable/edit_text"
				android:paddingLeft="10.0dip" android:paddingRight="10.0dip"
				android:layout_width="fill_parent" android:layout_height="wrap_content"
				android:layout_marginLeft="30.0dip" android:layout_marginRight="30.0dip"
				android:minHeight="60.0dip" android:hint="@string/STR_FIRST_NAME"
				android:maxLines="1" android:singleLine="true"
				android:selectAllOnFocus="true" android:layout_weight="1.0" />
			<EditText android:textSize="20.0dip" android:id="@+id/register_last_name_id"
				android:background="@android:drawable/edit_text"
				android:paddingLeft="10.0dip" android:paddingRight="10.0dip"
				android:layout_width="fill_parent" android:layout_height="wrap_content"
				android:layout_marginLeft="30.0dip" android:layout_marginRight="30.0dip"
				android:minHeight="60.0dip" android:hint="@string/STR_LAST_NAME"
				android:maxLines="1" android:singleLine="true"
				android:selectAllOnFocus="true" android:layout_weight="1.0" />
			<EditText android:textSize="20.0dip" android:id="@+id/register_email_id"
				android:background="@android:drawable/edit_text"
				android:paddingLeft="10.0dip" android:paddingRight="10.0dip"
				android:layout_width="fill_parent" android:layout_height="wrap_content"
				android:layout_marginLeft="30.0dip" android:layout_marginRight="30.0dip"
				android:minHeight="60.0dip" android:hint="@string/STR_EMAIL"
				android:maxLines="1" android:singleLine="true"
				android:selectAllOnFocus="true" android:layout_weight="1.0"
				android:inputType="textEmailAddress" />
			<!--<view android:gravity="left" android:layout_gravity="center"
				android:id="@+id/registration_privacy_link_id" android:layout_width="fill_parent"
				android:layout_height="wrap_content" android:layout_marginLeft="23.0dip"
				android:layout_marginRight="23.0dip" android:layout_weight="0.0"
				class="com.dataviz.dxtg.common.android.SelfExpandingWebView" />
		--></LinearLayout>
	</ScrollView>
	<RelativeLayout android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:layout_marginTop="5.0dip"
		android:layout_weight="0.0" xmlns:android="http://schemas.android.com/apk/res/android">
		<Button android:textSize="18.0dip" android:textStyle="bold"
			android:id="@+id/register_button_id" android:focusable="true"
			android:layout_width="wrap_content" android:layout_height="wrap_content"
			android:text="@string/STR_REGISTER_NOW"
			android:layout_alignParentRight="true" />
		<Button android:textSize="18.0dip" android:textStyle="bold"
			android:id="@+id/register_later_button_id"
			android:focusable="true" android:layout_width="wrap_content"
			android:layout_height="wrap_content" android:text="@string/STR_REGISTER_LATER"
			android:layout_toLeftOf="@id/register_button_id" />
		<Button android:textSize="18.0dip" android:textStyle="bold"
			android:id="@+id/registration_register_force_close_button_id"
			android:focusable="true" android:visibility="gone"
			android:layout_width="wrap_content" android:layout_height="wrap_content"
			android:text="@string/STR_EXIT" android:layout_toLeftOf="@id/register_button_id" />
	</RelativeLayout>
</LinearLayout>

而在服务器端很简单就是一个servlet接收传递过来的值就可以了，然后通过传递过来的值做相应的操作。

public class RegisterServlet extends HttpServlet{
	public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
		String firstName=request.getParameter("firstName");
		String lastName=request.getParameter("lastName");
		String emailName=request.getParameter("emailName");
		//response.setContentType(C);
		System.out.println("firstName:"+firstName);
		System.out.println("lastName:"+lastName);
		System.out.println("emailName:"+emailName);
	}
}