连接
select substr(sys_connect_by_path(meta.code, '.'), 2)
from T_META meta where meta.code=#{metaCode}
start with meta.parent = '@ROOT@'
connect by nocycle prior meta.code = meta.parent
------解决方案--------------------byte[]和InputStream的相互转换如下:
1:byte[]转换为InputStream流
InputStream sbs = new ByteArrayInputStream(byte[] buf);
2:InputStream转换为byte[]数组
ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
byte[] buff = new byte[100]; //buff用于存放循环读取的临时数据
int rc = 0;
while ((rc = inStream.read(buff, 0, 100)) > 0) {
swapStream.write(buff, 0, rc);
}
byte[] in_b = swapStream.toByteArray(); //in_b为转换之后的结果