加密
/**
* base64加密
* @param s
* @return
*/
@SuppressWarnings("restriction")
public static String getBASE64(String s) {
if (s == null) return null;
return (new sun.misc.BASE64Encoder()).encode( s.getBytes() );
}
解密
/**
* 解密
* @param s
* @return
*/
@SuppressWarnings("restriction")
public static String getFromBASE64(String s) {
if (s == null) return null;
sun.misc.BASE64Decoder decoder = new BASE64Decoder();
try {
byte[] b = decoder.decodeBuffer(s);
return new String(b);
} catch (IOException e) {
return null;
}
}
转为图片
/**
* base64转为图片
* @param str
* @param imgFilePath
* @return
*/
@SuppressWarnings("restriction")
public static OutputStream GenerateImage(String str, String imgFilePath) {
if (str == null) return null;// 图像数据为空
sun.misc.BASE64Decoder decoder = new BASE64Decoder();
try {
// Base64解码
byte[] bytes = decoder.decodeBuffer(str);
for (int i = 0; i < bytes.length; ++i) {
if (bytes[i] < 0) {// 调整异常数据
bytes[i] += 256;
}
}
// 生成jpeg图片
OutputStream out = new FileOutputStream(imgFilePath);
out.write(bytes);
out.flush();
out.close();
return out;
} catch (Exception e) {
return null;
}
}
页面接收图片
<img id="images">
$("#images").attr("src","data:image/gif;base64,"+data.photo); //放入ajax success函数
