base64转图片
/**
* @Description: 将base64编码字符串转换为图片
* @Author:
* @CreateTime:
* @param imgStr base64编码字符串
* @param path 图片路径-具体到文件
* @return
*/
public static boolean generateImage(String base64, String path) {
if (base64 == null)
return false;
//必须去掉base64的头部，不然转换失败
base64 = base64.replaceAll("data:\\w+/\\w+;base64,","");
BASE64Decoder decoder = new BASE64Decoder();
try {
// 解密
byte[] b = decoder.decodeBuffer(base64);
// 处理数据
for (int i = 0; i < b.length; ++i) {
if (b[i] < 0) {
b[i] += 256;
}
}
OutputStream out = new FileOutputStream(path);
out.write(b);
out.flush();
out.close();
return true;
} catch (Exception e) {
return false;
}
}
图片转base64
/**
* @Description: 根据图片地址转换为base64编码字符串
* @Author:
* @CreateTime:
* @return
*/
public static String getImageStr(String path) {
InputStream inputStream = null;
byte[] data = null;
try {
inputStream = new FileInputStream(path);
data = new byte[inputStream.available()];
inputStream.read(data);
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
// 加密
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(data);
}
注意
"data:image/jpeg;base64," 解码之前这个得去掉。