上次我说了用ASP,PHP,C#分别实现Google的Translate开发一个API ,由于很多程序代码由Java JSP实现,我还是利用一点时间做了一个Java JSP版本的,本人在Java方面还是入门的程度,期间,查了一些资料,虽然程序比较短,但是还是比较淘气的。
和上一话所说的利用Java JSP获取URL的内容,这篇的技术实现获取,然后正则匹配结果,就完成了。看代码:
- //javac GoogleTranslator.java -encoding utf-8
- import java.io.InputStream;
- import java.net.URLEncoder;
- import java.util.regex.*;
- public class GoogleTranslator{
- public String getUrlContent(String path){
- String rtn = "";
- int c;
- try{
- java.net.URL l_url = new java.net.URL(path);
- java.net.HttpURLConnection l_connection = (java.net.HttpURLConnection)
l_url.openConnection();- l_connection.setRequestProperty("User-agent","Mozilla/4.0");
- l_connection.connect();
- InputStream l_urlStream = l_connection.getInputStream();
- while (( ( c= l_urlStream.read() )!=-1)){
- int all=l_urlStream.available();
- byte[] b =new byte[all];
- l_urlStream.read(b);
- rtn+= new String(b, "UTF-8");
- }
- //Thread.sleep(2000);
- l_urlStream.close();
- }catch(Exception e){
- e.printStackTrace();
- }
- return rtn;
- }
- public String GetText(String Src){
- String Os=null;
- try{
- String pUrl="http://translate.google.com/translate_t?langpair="+URLEncoder.
encode("zh-CN|en","utf-8")+"&text="+URLEncoder.encode(Src,"gb2312") ;- String pageContent =getUrlContent(pUrl);
- if(!isNullOrEmpty(pageContent)){
- Os= GetMatchString(pageContent,"(
- )([?:\\s\\S]*?)
- ",2);
- }
- }catch(Exception e){
- e.printStackTrace();
- }
- return Os;
- }
- private boolean isNullOrEmpty(String param) {
- return param == null || param.trim().length() == 0;
- }
- public String GetMatchString(String text,String pattern,int point){
- Pattern p = Pattern.compile(pattern);
- Matcher m = p.matcher(text);
- if(m.find()) {
- return m.group(point); //匹配第1项
- }
- return null;
- }
- public static void main(String[] args){
- GoogleTranslator obj=new GoogleTranslator();
- System.out.println(obj.GetText("cjjer是Java天才"));
- }
- };
然后保存为GoogleTranslator.java,然后使用:Javac JSP GoogleTranslator.java -encoding utf-8,编译了,然后Java一下就可以了。
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