Use httpclient to achieve free Google translations Api_java

Because Google Translate API to collect money, so think of a way to steal a machine

1. Send a request to http://translate.google.com with HttpClient

2. Then use Jsoup to parse the HTML and take out the translated text

Copy Code code as follows:

/**
* Copyright (c) blackbear, Inc all Rights Reserved.
*/
Package org.bb.util.i18n;

Import Java.io.InputStream;
Import Java.net.URLEncoder;
Import Java.text.MessageFormat;

Import Org.apache.commons.io.IOUtils;

Import Org.bb.util.net.http.HttpClientUtil;
Import Org.jsoup.Jsoup;
Import org.jsoup.nodes.Document;
Import org.jsoup.nodes.Element;

/**
* Translateutil
*
* <pre> Translation Tools
* PS: Through Google Translate
* </pre>
*
* @author Catty
* @version 1.0, Created on 2011/9/2
*/
public class Translateutil {

Protected static final String url_template = "Http://translate.google.com/?langpair={0}&text={1}";
Protected static final String Id_resultbox = "Result_box";
Protected static final String ENCODING = "UTF-8";

Protected static final String auto = "Auto"; Google is automatically sentenced to the source language system
Protected static final String TAIWAN = "ZH-TW"; In the traditional
Protected static final String of "ZH-CN"; Simple in
Protected static final String 中文版 = "en"; British
Protected static final String JAPAN = "Ja"; Day

 /**
  * <pre>google Translations
  * PS: To Google to automatically judge the source language
  * </PRE>
  *
  * @param text
  * @param target_lang target language
  * @return
  * @throws Exception
  */
 public static string Translate (final string text, final string Target_lang) throws Exception {
  retu RN Translate (text, AUTO, Target_lang);
 }

/**
* <pre>google Translation </pre>
*
* @param text
* @param Src_lang Source language system
* @param target_lang Target Language Department
* @return
* @throws Exception
*/
public static string translate (final string text, final string Src_lang, final string Target_lang)
Throws Exception {
InputStream is = null;
Document doc = null;
Element ele = null;
try {
Create URL string
String url = Messageformat.format (url_template,
Urlencoder.encode (Src_lang + "|" + Target_lang, ENCODING),
Urlencoder.encode (text, ENCODING));

Connect & Download HTML
is = Httpclientutil.downloadasstream (URL);

Parse HTML by Jsoup
Doc = Jsoup.parse (IS, ENCODING, "");
Ele = Doc.getelementbyid (Id_resultbox);
String result = Ele.text ();
return result;

finally {
Ioutils.closequietly (IS);
is = null;
doc = null;
Ele = null;
}
}

/**
* <pre>google translation: Simple--> </pre>
*
* @param text
* @return
* @throws Exception
*/
public static string CN2TW (final String text) throws Exception {
Return translate (text, TAIWAN);
}

/**
* <pre>google translation:--> simplified </pre>
*
* @param text
* @return
* @throws Exception
*/
public static string TW2CN (final String text) throws Exception {
Return translate (text, TAIWAN, the);
}

/**
* <pre>google translation: English--> </pre>
*
* @param text
* @return
* @throws Exception
*/
public static string EN2TW (final String text) throws Exception {
Return translate (text, 中文版, TAIWAN);
}

/**
* <pre>google translation:--> English </pre>
*
* @param text
* @return
* @throws Exception
*/
public static string Tw2en (final String text) throws Exception {
Return translate (text, TAIWAN, 中文版);
}

/**
* <pre>google translation: Japanese--> </pre>
*
* @param text
* @return
* @throws Exception
*/
public static string JP2TW (final String text) throws Exception {
Return translate (text, JAPAN, TAIWAN);
}

/**
* <pre>google translation:--> Day </pre>
*
* @param text
* @return
* @throws Exception
*/
public static string TW2JP (final String text) throws Exception {
Return translate (text, TAIWAN, JAPAN);
}
}

Httpclientutil.java

Copy Code code as follows:

/**
* Copyright (c) blackbear, Inc all Rights Reserved.
*/
Package org.bb.util.net.http;

Import Java.io.BufferedInputStream;
Import Java.io.File;
Import Java.io.FileOutputStream;
Import Java.io.InputStream;
Import Java.util.Map;

Import org.apache.commons.io.IOUtils;
Import Org.apache.commons.logging.Log;
Import org.apache.commons.logging.LogFactory;
Import org.apache.http.HttpEntity;
Import Org.apache.http.HttpResponse;
Import org.apache.http.client.HttpClient;
Import Org.apache.http.client.methods.HttpGet;
Import Org.apache.http.client.methods.HttpPost;
Import org.apache.http.client.methods.HttpRequestBase;
Import org.apache.http.conn.scheme.PlainSocketFactory;
Import Org.apache.http.conn.scheme.Scheme;
Import Org.apache.http.conn.scheme.SchemeRegistry;
Import org.apache.http.conn.ssl.SSLSocketFactory;
Import org.apache.http.entity.BufferedHttpEntity;
Import org.apache.http.impl.client.DefaultHttpClient;
Import Org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
Import Org.apache.http.params.BasicHttpParams;

/**
* Postutil.java
*
* @author Catty
* @version 1.0, Created on 2008/2/20
*/
public class Httpclientutil {

protected static log = Logfactory.getlog (Httpclientutil.class);
protected static httpclient httpclient = null;
protected static int maxtotal = 200;
protected static int maxperroute = 20;
protected static String useragent = "mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/535.7 (khtml, like Gecko) chrome/16.0.912.77 safari/535.7 ";

 static {
  if (httpclient = = null) {
   //~~~~~~~~~~~~~~~~~~~~
    //Create httpclient
   //~~~~~~~~~~~~~~~~~~~~
   schemeregistry reg = new Schemeregistry ();
   reg.register (New Scheme ("http", Plainsocketfactory.getsocketfactory ());
   reg.register (New Scheme ("https", 443, Sslsocketfactory.getsocketfactory ());
   threadsafeclientconnmanager cm = new Threadsafeclientconnmanager (reg);
   cm.setmaxtotal (maxtotal);
   cm.setdefaultmaxperroute (Maxperroute);
   httpclient = new defaulthttpclient (cm);
  }
 }

/**
* <pre> download back to inputstream</pre>
*
* @param URL
* @return
* @throws Exception
*/
public static InputStream downloadasstream (String url) throws Exception {
InputStream is = (inputstream) download (URL, null, NULL, FALSE);
return is;
}

/**
* <pre> save to File</pre> after downloading
*
* @param URL
* @param savefile
* @throws Exception
*/
public static void Download (String URL, File savefile) throws Exception {
Download (URL, savefile, NULL, FALSE);
}

/**
* <pre> Download </pre>
*
* @param URL
* @param savefile
* @param params
* @param isPost
* @return If Savefile==null returns InputStream, SaveFile
* @throws Exception
*/
public static Object Download (final String URL, final File savefile, final map<string, string> params,
Final Boolean isPost) throws Exception {

Boolean savetofile = SaveFile!= null;

Check dir exist??
if (SaveToFile && savefile.getparentfile (). Exists () = False) {
Savefile.getparentfile (). Mkdirs ();
}

Exception err = null;
Httprequestbase request = null;
HttpResponse response = null;
Httpentity entity = NULL;
FileOutputStream fos = null;
Object result = null;

try {
Create request
if (isPost) {
Request = new HttpPost (URL);
} else {
Request = new HttpGet (URL);
}

Add Header & Params
Addheaderandparams (request, params);

Connect
Response = Httpclient.execute (request);
entity = response.getentity ();
entity = new bufferedhttpentity (entity);

Get result
if (savetofile) {//Save to disk
FOS = new FileOutputStream (savefile);
Ioutils.copy (Entity.getcontent (), FOS);
result = SaveFile;
else {//warp to Inpustream
result = new Bufferedinputstream (Entity.getcontent ());
}

catch (Exception e) {
Err = e;
finally {

Close
ioutils.closequietly (FOS);

Clear
request = NULL;
Response = NULL;
entity = NULL;

if (err!= null) {
throw err;
}

return result;
}

}

protected static void Addheaderandparams (final httprequestbase request, final map<string, string> params) {
Add default Header
Request.addheader ("User-agent", useragent);

Add params
if (params!= null) {

Map--> Httpparams
Basichttpparams myparams = new Basichttpparams ();
For (String Key:params.keySet ()) {
Myparams.setparameter (Key, Params.get (key));
}

Request.setparams (Myparams);
}
}

public static HttpClient Gethttpclient () {
return httpclient;
}

public static void Sethttpclient (HttpClient httpclient) {
Httpclientutil.httpclient = httpclient;
}

public static int Getmaxtotal () {
return maxtotal;
}

public static void Setmaxtotal (int maxtotal) {
Httpclientutil.maxtotal = Maxtotal;
}

public static int Getmaxperroute () {
return maxperroute;
}

public static void Setmaxperroute (int maxperroute) {
Httpclientutil.maxperroute = Maxperroute;
}

public static String Getuseragent () {
return useragent;
}

public static void Setuseragent (String useragent) {
Httpclientutil.useragent = useragent;
}
}