/**
* 将base64的字符串转成图片
* @param imgStr base64图片的字符串
* @param imgFilePath 本地图片存储路径
* @return
*/
public static boolean generateImage(String imgStr,String imgFilePath) {
if(imgStr == null) {
return false;
}
byte[] b;
try {
b = new BASE64Decoder().decodeBuffer(imgStr);
for (int i = 0; i < b.length; i++) {
if(b[i]<0) {
b[i]+=256;
}
}
OutputStream out = new FileOutputStream(imgFilePath);
out.write(b);
out.flush();
out.close();
return true;
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
/**
* 将本地文件转成base64字符串
* @return
*/
public static String file2Byte(String filePath) {
byte[] data = null;
FileImageInputStream input = null;
try {
input = new FileImageInputStream(new File(filePath));
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buf = new byte[1024];
int length = 0;
while((length=input.read(buf))!=-1) {
out.write(buf,0,length);
}
data = out.toByteArray();
out.close();
input.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return new BASE64Encoder().encode(data);
}
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