oracle blob转txt

/**
* 读取txt文件的内容
*
* @param blob
* @return
* @see [类、类#方法、类#成员]
*/
public static String txt2String(Blob blob)
{
String result = "";
try
{
InputStream input = blob.getBinaryStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int i = -1;
while ((i = input.read()) != -1)
{
baos.write(i);
}
// 关闭流，不可少
if (input != null)
input.close();
return baos.toString("GBK");
/*
* byte[] buffer = new byte[1024]; int n = -1; // 遍历，开始下载 while ((n = input.read(buffer, 0, 1024)) > -1) {
* result = result + "\n" + new String(buffer, 0, n); }
*/
}
catch (Exception e)
{
e.printStackTrace();
}
// System.out.println(result);
return result;
}