WebUtils 및 FileUtils WebUtils.javapackage web.common.util; import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.InetAddress;import java.net.URL;import java.net.URLDecoder;import java.net.URLEncoder;import java.net.UnknownHostException;impo..