Question

java 读取多个图片

java怎么读取多个图片 并把二进制流存到内存

Answer 1

使用DataInputStream 包装 FileInputStream，然后读取成byte[]
然后使用ArrayList包装多个byte[]对象

追问

有没有类似的代码作参考的

追答

DataInputStream in = null;
in = new DataInputStream(is);
int bytesRead = 0;
int totalBytesRead = 0;
while (bytesRead != -1) {
byte[] readBytes = new byte[8192];
bytesRead = in.read(readBytes);
if (bytesRead != -1) {
totalBytesRead += bytesRead;
if (totalBytesRead <= length) {
System.arraycopy(midBytes(readBytes, 0, bytesRead), 0, allBytes, totalBytesRead - bytesRead, bytesRead);
} else {
sizeCheck = totalBytesRead - length;
System.arraycopy(midBytes(readBytes, 0, bytesRead), 0, allBytes, totalBytesRead - bytesRead, bytesRead - sizeCheck);
break;
}
}
}

Answer 2

创建一个数据流的数组，然后把每一张图片的流对应流数组中的每一个，你也可以用list集合去保存

Answer 3

创建一个数组 在一张一张的读到存中

追问

能不能再说清楚点