java访问url

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
/**
 * java访问url
 *
 */
public class JavaAccessUrl {
    public static String getUrlContent(String str){
        BufferedReader read = null;
        InputStream input = null;
        StringBuffer sb = new StringBuffer();
        String line = "";
        
        try {
            URL url = new URL(str);
            HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();

            httpConn.setConnectTimeout(5000);//设置连接服务器的超时时间
            httpConn.setReadTimeout(3000);//设置从服务器读取数据的超时时间
            httpConn.connect();
            input = httpConn.getInputStream();
            read = new BufferedReader(new InputStreamReader(input, "utf-8"));
            while ((line = read.readLine()) != null) {
                sb.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        String result = sb.toString();
        return result;
    }
}