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實(shí)例如下:
//圖片到byte數(shù)組 public byte[] image2byte(String path){ byte[] data = null; FileImageInputStream input = null; try { input = new FileImageInputStream(new File(path)); ByteArrayOutputStream output = new ByteArrayOutputStream(); byte[] buf = new byte[1024]; int numBytesRead = 0; while ((numBytesRead = input.read(buf)) != -1) { output.write(buf, 0, numBytesRead); } data = output.toByteArray(); output.close(); input.close(); } catch (FileNotFoundException ex1) { ex1.printStackTrace(); } catch (IOException ex1) { ex1.printStackTrace(); } return data; } //byte數(shù)組到圖片 public void byte2image(byte[] data,String path){ if(data.length<3||path.equals("")) return; try{ FileImageOutputStream imageOutput = new FileImageOutputStream(new File(path)); imageOutput.write(data, 0, data.length); imageOutput.close(); System.out.println("Make Picture success,Please find image in " + path); } catch(Exception ex) { System.out.println("Exception: " + ex); ex.printStackTrace(); } } //byte數(shù)組到16進(jìn)制字符串 public String byte2string(byte[] data){ if(data==null||data.length<=1) return "0x"; if(data.length>200000) return "0x"; StringBuffer sb = new StringBuffer(); int buf[] = new int[data.length]; //byte數(shù)組轉(zhuǎn)化成十進(jìn)制 for(int k=0;k
網(wǎng)頁(yè)題目:Java圖片與byte數(shù)組互相轉(zhuǎn)換實(shí)例-創(chuàng)新互聯(lián)
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