java 爬取网页代码-蒲公英云

java 爬取网页代码

package text;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.MalformedInputException;
public class GetHtml {
    /**java项目源www.fhadmin.org
     * @param url 网址
     * @param encoding 编码
     * @return 返回string
     */
    public static String getHtmlResouceUrl(String url,String encoding){
        StringBuffer buffer= new StringBuffer();
        URL urlObj=null;
        URLConnection uc=null;
        InputStreamReader isr=null;
        BufferedReader reader=null;
        String line=null;
        try {
            urlObj=new URL(url);
            uc = urlObj.openConnection();
            isr=new InputStreamReader(uc.getInputStream(), encoding);
            reader=new BufferedReader(isr);
            while((line=reader.readLine())!=null){
                buffer.append(line+"\n");
            }
        }catch (MalformedInputException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("网络打开失败");
        }catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("网络连接失败");
             }finally{
                 if(isr!=null){
                     try {
                        isr.close();
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                 }
             }
        return buffer.toString();
    }
    public static void main(String[] args) {
        String url="http://www.1b23.com";
        String econding="utf-8";
        String html=getHtmlResouceUrl(url,econding);
        System.out.println(html);
    }
}