Web or corporate intranet server image display to page via HTTP request

<span style= "White-space:pre" ></span>/**     * @author luoguohui       * @date   July 16, 2015      * Description: Obtain online or corporate intranet server images via HTTP request      * @params urlstr such as HT tp://creatim.allyes.com.cn/imedia/csdn/20150715/15_39_00_5a1e2c1e.jpg     * @return Base64String      */    public string Getimagebase64onservice (string urlstr) {    <span style= " White-space:pre "></span>inputstream bis = null;          httpurlconnection httpurl = null;          URL url = null;          try { <span style= "White-space:pre" ></span>       &NBS p;url = new URL (<span style= "font-family:arial, Helvetica, Sans-serif;" >urlstr</span><span style= "font-family:arial, Helvetica, Sans-serif;" >);  </span><span style= "White-space:pre" ></span> &nBsp      httpurl = (httpurlconnection) url.openconnection ();  <span style= "White-space:pre" ></span>        httpurl.connect ();  <span style= "White-space:pre" ></span>        bis = Httpurl.getinputstream ();  <span style= "White-space:pre" ></span>        bytearrayoutputstream output = new Bytearrayoutputstream (); <span style= "White-space:pre" ></span>        byte[] buffer = New Byte[4096];<span style= "White-space:pre" ></span>        int n = 0;<span style= " White-space:pre "></span>        while ( -1! = (n = bis.read (buffer))) {<span style=" white- Space:pre "></span>            output.write (buffer, 0, N); <span style=" White-space:pre "></span>        }<span style=" White-space:pre "></span>   &nbsp    output.tobytearray () <span style= "White-space:pre" ></span>         String imageBase64 =  base64.bytearraytobase64 (Output.tobytearray ()); <span style= "White-space:pre" ><  /SPAN>        return imagebase64;       } catch (IOException e) {        } catch (ClassCastException e) {        } finally { <span style= "White-space:pre" ></span>        try {  <span style= "White-space:pre" > </span>        bis.close ();  <span style= "White-space:pre" ></span>        httpurl.disconnect ();  <span style= "White-space:pre" ></span>        } catch (IOException e) { < Span style= "White-space:pre" ></span>        } catch (NullPointerException e) { < Span Style= "WHite-space:pre "></span>        }         }      &nbs P   Return null;   }

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Web or corporate intranet server image display to page via HTTP request