相关疑难解决方法(0)

我有一个Java存储过程,它使用Resultset对象从表中获取记录并创建一个csv文件.

BLOB retBLOB = BLOB.createTemporary(conn, true, BLOB.DURATION_SESSION);
retBLOB.open(BLOB.MODE_READWRITE);
OutputStream bOut = retBLOB.setBinaryStream(0L);
ZipOutputStream zipOut = new ZipOutputStream(bOut);
PrintStream out = new PrintStream(zipOut,false,"UTF-8");
out.write('\ufeff');
out.flush();
zipOut.putNextEntry(new ZipEntry("filename.csv"));
while (rs.next()){
    out.print("\"" + rs.getString(i) + "\"");
    out.print(",");
}
out.flush();
zipOut.closeEntry();
zipOut.close();
retBLOB.close();
return retBLOB;

但生成的csv文件未显示正确的德语字符.Oracle数据库的NLS_CHARACTERSET值也为UTF8.

请建议.