Download online images to the local java tool class, and download images to the java tool class

Download the network segment to the local java tool class, and download the image java tool class

Package com. swift; import java. io. file; import java. io. fileOutputStream; import java. io. inputStream; import java.net. httpURLConnection; import java.net. URL; public class DownloadPicUtil {public static final int DEF_CONN_TIMEOUT = 30000; public static final int DEF_READ_TIMEOUT = 30000; public static String userAgent = "Mozilla/5.0 (Windows NT 6.1) appleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547. 66 Safari/537.36 "; public static void downloadPic (String strUrl, String savePath) throws Exception {HttpURLConnection conn = null; URL url = new URL (strUrl); conn = (HttpURLConnection) url. openConnection (); conn. setRequestMethod ("GET"); conn. setRequestProperty ("User-agent", userAgent); conn. setUseCaches (false); conn. setConnectTimeout (DEF_CONN_TIMEOUT); conn. setReadTimeout (DEF_READ_TIMEOUT); conn. s EtInstanceFollowRedirects (false); conn. connect (); InputStream is = conn. getInputStream (); // connect to get the input stream content File = new file (savePath); if (! File. exists () {// If the saved Folder does not exist, a file is created. mkdirs ();} FileOutputStream fos = new FileOutputStream (new File (savePath, strUrl. substring (strUrl. lastIndexOf ("/") + 1); // obtain the image name int intRead = 0 in the URL; byte [] buf = new byte [1024*2]; // generate a 2 K container for receiving the image byte stream while (intRead = is. read (buf ))! =-1) {fos. write (buf, 0, intRead); // The file output streams to the specified path file fos. flush ();} fos. close (); // close the output stream if (conn! = Null) {conn. disconnect (); // close the connection }}}