实例解析Java图片与byte数组互相转换
实例如下:
创新互联专业为企业提供北京网站建设、北京做网站、北京网站设计、北京网站制作等企业网站建设、网页设计与制作、北京企业网站模板建站服务,十多年北京做网站经验,不只是建网站,更提供有价值的思路和整体网络服务。//图片到byte数组 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数组到图片 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数组到16进制字符串 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数组转化成十进制 for(int k=0;k文件解析:
FileImageOutputStream 换成了 FileOutputStream
FileImageInputStream 换成 FileInputStream相关学习推荐:Java视频教程
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