object转string,int转为string

1.InputStream到String /* *InputStream的字符串*/publicstringinputstrtostr (inputstream inputstream ) throwsioexception { byttrem //将文件内容读取到字节数组int offset=0中int numRead=0； while (offset bytes.length (numread=inputstream.read ) bytes，offset，bytes.length - offset ) )0) offset=nuf stream } inputStream.close (； stringencodedfilestring=base64.get encoder ().encodetostring(bytes )； 返回编码文件字符串； }2.从string转换为InputStream /* *字符串inputstream */publicinputstreamstr2inputstr (string instr (try ) byte ) bytes=base66s }catch(exceptione ) {e.printStackTrace )； }返回空值； }