在android中施用google翻译

package com.eg.android.test;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;import org.json.JSONObject;import android.util.Log;public class Translate {	private static final String TAG = "Translate";	private static final String ENCODING = "UTF-8";	private static final String TRANS_URL = "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=";	private static final String LANGPAIR_TEXT = "&langpair=";	private static final String LANGPAIR_SEPARTOR = "%7C";	public static String retrieveTranslation(String text, String from, String to) {		String result = null;		HttpURLConnection conn = null;		try {			StringBuilder strBuilder = new StringBuilder();			String url = strBuilder.append(TRANS_URL)					.append(URLEncoder.encode(text, ENCODING))					.append(LANGPAIR_TEXT).append(from)					.append(LANGPAIR_SEPARTOR).append(to).toString();			Log.d(TAG, "Connecting to " + url);						conn = (HttpURLConnection) new URL(url).openConnection();						String respStr = getResponseString(conn.getInputStream());			JSONObject json = new JSONObject(respStr);			result = ((JSONObject) json.get("responseData"))					.getString("translatedText");		} catch (Exception e) {			Log.e(TAG, "translation fail!!");		} finally { 			try {				if(conn != null) {					conn.getInputStream().close();					if (conn.getErrorStream() != null) 						conn.getErrorStream().close();				}			} catch (IOException e) {				e.printStackTrace();			}        }		return result;	}	private static String getResponseString(InputStream inputStream) {		StringBuilder outputBuilder = new StringBuilder();		BufferedReader reader = null;		try {			String str = null;			if (inputStream != null) {				reader = new BufferedReader(new InputStreamReader(inputStream,						ENCODING));				while ((str = reader.readLine()) != null) {					outputBuilder.append(str);				}			}		} catch (Exception e) {			Log.e(TAG,"[google-api-translate-java] Error reading translation stream.");		} finally {			try {				if (reader != null)					reader.close();			} catch (IOException e) {				e.printStackTrace();			}		}		return outputBuilder.toString();	}}

String res = Translate.retrieveTranslation("将这行中文翻译为英文", "zh-CN", "en");