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package cn.wisenergy.web.sms;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
/**
* 本类提供了对URL所指向的内容的加载操作
* @author hduser
*
*/
public class UrlUtils {
/**
* 获取url网址返回的数据内容
* @param urlStr
* @return
*/
public static String loadURL(String urlStr){
try{
URL url = new URL(urlStr);
HttpURLConnection urlConnection = (HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.connect();
InputStream inputStream = urlConnection.getInputStream();
String responseStr = ConvertToString(inputStream);
return responseStr;
}catch(IOException e){
e.printStackTrace();
return null;
}
}
private static String ConvertToString(InputStream inputStream){
InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder result = new StringBuilder();
String line = null;
try {
while((line = bufferedReader.readLine()) != null){
result.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try{
inputStreamReader.close();
inputStream.close();
bufferedReader.close();
}catch(IOException e){
e.printStackTrace();
}
}
return result.toString();
}
}