Question

如何将16进制JPG格式的字符串显示成图片

Answer 1

String src=...; //从数据库取得的字符串
String output=...; //定义一个输出流用来保存图片
try{
FileOutputStream out = new FileOutputStream(new File(output));
byte[] bytes = src.getBytes();
for(int i=0;i< bytes.length;i+=2){
out.write(charToInt(bytes[i])*16+charToInt(bytes[i+1]));