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我想以 csv 格式编写一些数据并使用 Excel 打开它。下面是我试图实现它的代码，

public void writeOutput(String fileName,Map<String){
        try {
String jsonData="{"adjustments":[{"adjustmentType":"RENEWAL_OPTION_AMORTIZING_RENEWAL","rate":0.0400},{"adjustmentType":"AMORTIZATION_TERM_LESS_THAN_25_YEARS","rate":-0.0800}],"errorTypes":[],"premiumTaxs":[{"taxType":"STATE_TAX","taxPercent":1.3,"taxAmount":null,"taxJurisdictionName":"Florida"}],"renewalPremiums":[{"rate":0.8100,"rateDurationMonths":168,"sequence":1}],"totalInitialRate":0.8100,"rateName":"Standard National Monthly Non Refundable BPMI Rates","rateCardId":"NABM_NR","ratingInfoBaseRate":0.8500,"optimumPricing":false,"miPricingVO":null,"addressMatchCode":null}";
String dataID = "MyNewDataID";
                       OutputStreamWriter writer = new OutputStreamWriter(
                                                     new FileOutputStream(System.getProperty("user.dir")
                                                                                   + "\\test\\" + fileName + ".csv", true),"UTF-8");
                       BufferedWriter fbw = new BufferedWriter(writer);
                       fbw.write(dataID + "," + jsonData);
                       fbw.newLine();
                       fbw.close();
        }catch (Exception e) {
                      System.out.println(e.getCause());
                      System.out.println(e.getStackTrace());
        }
}

当执行上述代码并使用 Excel 打开 csv 文件时，所有数据（逗号分隔）都显示在不同的单元格中 - 我期待单元格 A1 中的字符串 dataID 和 B1 中的 jsonData。请帮助我 - 我如何实现这一目标。

注意：我尝试过使用不同的分隔符，但没有成功。

谢谢，迈克

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