package com.example;

import java.io.*;

import java.net.URL;

import java.net.URLConnection;

public class WebClient {

private WebClient()

{}

public static String GetContent(String url, String oriEncoding, String targetEncoding)throws IOException{

URL u = new URL(url);

URLConnection uc = u.openConnection();

BufferedReader in;

if(oriEncoding == null || oriEncoding.length() == 0){

in = new BufferedReader(new InputStreamReader(uc.getInputStream()));

} else {

in = new BufferedReader(new InputStreamReader(uc.getInputStream(), oriEncoding));

}

String line;

StringBuilder sb = new StringBuilder();

while((line = in.readLine()) != null) {

sb.append(line);

}

if(targetEncoding == null || targetEncoding.length() == 0) {

return sb.toString();

}

return new String(sb.toString().getBytes(), targetEncoding);

}

}