通过百度获取天气预报[转]

public class Getweather {    

    

    /**   

     * @param args   

     * @throws ParserException    

     */    

    public static void getWeather(String url) throws ParserException//通过百度获得天气预报，    

    {    

        Parser parser=new Parser("http://www.baidu.com/s?wd=%CC%EC%C6%F8");//URLDecoder 码。代表天气自己转换就行    

        NodeFilter filter=new HasAttributeFilter("class","al_tr");    

        NodeList nodelist=parser.extractAllNodesThatMatch(filter);    

        for(String a:nodelist.elementAt(0).toPlainTextString().trim().split(" "))    

        {    

            if(!"".equals(a))    

            System.out.println(a);    

        }    

    }    

    public static void getWeatherImage() throws ParserException//获得天气图片的链接URL    

    {    

        Parser parser=new Parser("http://www.baidu.com/s?wd=%CC%EC%C6%F8");    

        NodeFilter filter=new HasAttributeFilter("class","al_tr");    

        NodeList nodelist=parser.extractAllNodesThatMatch(filter);    

        nodelist=nodelist.elementAt(0).getChildren();    

        NodeFilter filter1=new NodeClassFilter(ImageTag.class);    

        nodelist=nodelist.extractAllNodesThatMatch(filter1,true);    

        for(int i=0;i<nodelist.size();i++)    

        {    

            ImageTag image=(ImageTag) nodelist.elementAt(i);    

            DownLoadImg(image.getImageURL(),String.valueOf(i));    

        }    

    }    

    public static void DownLoadImg(String url,String name)//下载对应的天气图片。    

    {    

        HttpClient hc=new HttpClient();    

        GetMethod gm=new GetMethod(url);    

        try {    

            hc.executeMethod(gm);    

            String path="/home/weather/";    

            File file=new File(path);    

            if(!file.exists())    

            {    

                file.mkdirs();    

            }    

            String imagepath=path+name+".gif";    

            file=new File(imagepath);    

            if(!file.exists())    

            {    

                file.createNewFile();    

            }    

            FileOutputStream out=new FileOutputStream(file);    

            out.write(gm.getResponseBody());    

            out.close();    

        }  catch (Exception e) {    

        }    

    }    

    public static void main(String[] args) throws UnsupportedEncodingException, ParserException {    

        getWeatherImage();    

    }    

    

}