无法在java中的文本文件中写入完整数据

我尝试使用outputstream.write在带有下载选项的文本文件中写入clob数据，但它只写入第一行。如何写入完整数据。这是我的密码：

        OutputStream outputStream = response.getOutputStream();
        oRs=oStmt.executeQuery("select subtxt  from mybank.dt_subject  where mailid = '"+sMailID+"' and sessionid = '"+sSessionID+"'");
        while(oRs.next()){

             outputResult = oRs.getString(1);
             outputStream.write(outputResult.getBytes());                
             response.setContentType("text/plain");
             response.setHeader("Content-disposition","attachment; filename=\"" +sFileName+".txt\"");
             outputStream.flush();
             outputStream.close();

        }

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您将在下一个迭代的第一次迭代中关闭流

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显然，您不能在第一行之后进行写入。

如前所述-在while循环之后关闭输出流：

 OutputStream outputStream = response.getOutputStream();
    oRs = oStmt.executeQuery("select subtxt  from mybank.dt_subject  where mailid = '" + sMailID + "' and sessionid = '" + sSessionID + "'");
    while (oRs.next()) {

        outputResult = oRs.getString(1);
        outputStream.write(outputResult.getBytes());
        response.setContentType("text/plain");
        response.setHeader("Content-disposition", "attachment; filename=\"" + sFileName + ".txt\"");

    }
    outputStream.flush();
    outputStream.close();

这是因为您调用outputStream.close；在将所有数据写入文件之前。在while循环之后调用它。