??? 一種中英文翻譯工具靈格斯，原理如下，輸入相關(guān)的要翻譯的字詞，到相關(guān)網(wǎng)站中查詢，將結(jié)果在本地顯示。手機(jī)中實(shí)現(xiàn)這個功能，必須用手機(jī)訪問Web的知識。學(xué)習(xí)JEE的童鞋明白，許多東西底層使用Apache HttpClient實(shí)現(xiàn)功能。如一個XFire底層訪問，一些web的服務(wù)器底層等，一些常用的應(yīng)用程序訪問web網(wǎng)站等都是用這個組件開發(fā)，學(xué)習(xí)Android的童鞋會發(fā)現(xiàn)Android SDK中包含這個組件HttpClient， 但是他的功能沒有JEE的HTTPClient的公共強(qiáng)大，但是仍然非常強(qiáng)悍！好了言歸正傳，開始講解關(guān)于一個簡單中英文翻譯字典的實(shí)現(xiàn)。

?

???? Android中實(shí)現(xiàn)原理講解：采用HttpClient或者URLConnection訪問得到結(jié)果，解析實(shí)現(xiàn)而已。至于界面嗎？可以自行安排。好了看一下實(shí)現(xiàn)效果唄！

?

重點(diǎn)代碼如下：

    package com.easyway.android.xdict;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
/**
 * 手機(jī)訪問遠(yuǎn)程http請求的信息
 * @author longgangbai
 * @date 2010-5-25
 * @version 1.0
 * @since JDK6.0
 */
public class HTTPClient {
	private final static  String DEFAULT_CHARSET="UTF-8";
	/**
	 * 手機(jī)遠(yuǎn)程請求文件信息解析
	 * @param urlPath
	 * @param map
	 * @return
	 */
	public  static String executeByHttpURLConnection(String urlPath,Map<String, String> map){
		String result="";
		InputStream is =null;
		OutputStream os = null;
		try {
			URL url = new URL(urlPath);
			HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
			//設(shè)置請求的方式
			httpCon.setRequestMethod("POST");
			//設(shè)置輸入的信息
			httpCon.setDoInput(true);
			//設(shè)置輸出信息
			httpCon.setDoOutput(true);
			//設(shè)置是否使用緩存
			httpCon.setUseCaches(false);
			//設(shè)置請求的參數(shù)
			if(map!=null)
			{
				Set<Entry<String,String>>  entryMaps=map.entrySet();
				for (Entry<String, String> entry : entryMaps) {
					httpCon.addRequestProperty(entry.getKey(), entry.getValue());
				}
			}
			httpCon.setRequestProperty("Charset", DEFAULT_CHARSET);
			is = httpCon.getInputStream();
			//os = httpCon.getOutputStream();
			//  使用os發(fā)送xml數(shù)據(jù)，使用is接收服務(wù)端返回的數(shù)據(jù)
		    result=getResponseResult(is);
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			try {
				 is.close();
				 os.close();
			} catch (Exception e) {
			}
		}
		return result;
		
	}
	/**
	 * 獲取相應(yīng)的信息
	 * @param is
	 * @return
	 * @throws IOException
	 */
	public static String getResponseResult(InputStream is ) throws IOException{
		 BufferedReader br = new BufferedReader(new InputStreamReader(is, DEFAULT_CHARSET));
		 String line=null;
		 String result="";
		 while((line=br.readLine())!=null){
			 result+=line;
		 }
		return result;
	}
	
	 /**
	  * 手機(jī)訪問頁面采用apache的訪問
	  * @param httpurl
	  * @return
	  */
	 public static String executeHttpClientByApache(String httpurl,Map<String, String> map) {
		 // 構(gòu)建HttpClient的實(shí)例的應(yīng)用
		 HttpClient httpclient=new DefaultHttpClient();
		 //設(shè)置post發(fā)送的對象
		 HttpPost httpPost = new HttpPost();
		 //設(shè)置各種請求的頭部信息和參數(shù)
		 List<NameValuePair> params=new ArrayList<NameValuePair>();
		 if(map!=null){
				Set<Entry<String,String>>  entryMaps=map.entrySet();
				for (Entry<String, String> entry : entryMaps) {
					params.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
				}
		 }
		 String result="";
		 try {
			 //設(shè)置請求的格式為UTF-8形式
			  httpPost.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));
			  //獲取響應(yīng)的信息
			  HttpResponse response= httpclient.execute(httpPost);
			  //獲取響應(yīng)的狀態(tài)
			  int statusCode=response.getStatusLine().getStatusCode();
			  if(statusCode==200){
				  result=EntityUtils.toString(response.getEntity(), DEFAULT_CHARSET);
			  }else{
				  System.out.println("statusCode="+statusCode);
			  }
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	    return result;

	 }
}


  

?

效果圖如下：

?

?

?

一個簡單的中英文翻譯詞典學(xué)習(xí)（類似靈格斯）一