如何实现csv文件的读写操作

Question

请教各位大侠，谁有写过实现对csv文件的读写操作的java代码，有源码的话帮忙贴上来，我是一点思路都没有~~~~

Answer 1

朋友，你是要对以csv为后缀的文件进行读写操作吧，如果是，那我可以给你个网址你去参考吧！
http://www.1cn.biz/java/index.php?q=node/237

Answer 2

是要对以csv为后缀的文件进行读写操作，谢谢楼上的，我去那网站看看~~

Answer 3

CVS 写操作部分代码。 ZZDownloadUtil.createCsv(
                        outList,
                        "KT_CEIT.dat",
                        csvHeader,
                        response);================================================
    public static void createCsv(
        final List csvList,
        final String csvFileName,
        final String csvHeader,
        final HttpServletResponse response)
        throws ZZServerException {        OutputStream outputStream = null;
        try {
            ZZDownloadUtil.setResponseBeforeDownload(response, csvFileName);
            outputStream = response.getOutputStream();
            ZZCsvWriter.writeCSV(csvList, csvHeader, null, outputStream);
        } catch (IOException e) {
        } catch (Exception e) {
        } finally {
            if (null != outputStream) {
                try {
                    outputStream.close();
                } catch (Exception e) {
                    throw new ZZServerException(e.getMessage());
                }
            }
        }
    }    public static final void setResponseBeforeDownload(
        HttpServletResponse response,
        String filename)
        throws ZZServerException {
        try {
            response.setCharacterEncoding("Shift_JIS");
            response.setContentType("application/x-msbinary");
            response.setHeader(
                "Content-Disposition",
                "attachment; filename="
                    + new String(filename.getBytes("Shift_JIS"), "ISO8859_1"));
        } catch (UnsupportedEncodingException e) {
        }
    } public static void writeCSV(
            List data,
            String headerStr,
            String tailStr,
            OutputStream outputStream) throws IOException {
        String csvString = convertDataToCSV(data, headerStr, tailStr);
        Writer sw = null;
        try {
            if (outputStream != null) {
                String charset = "Windows-31J";
                sw = new BufferedWriter(
                    new OutputStreamWriter(outputStream, charset));
                //sw = new BufferedWriter(new OutputStreamWriter(outputStream));
                sw.write(csvString);
            }
        } finally {
            if (sw != null) {
                sw.close();
            }            if (outputStream != null) {
                outputStream.close();
            }
        }
    }
    public static String convertDataToCSV(
        List data,
        String headerString,
        String tailString) {        StringBuffer csvData = new StringBuffer();        if (!ZZStringUtil.isNull(headerString)) {
            csvData.append(headerString);
            csvData.append(STR_CRLF);
        }        convertDataToString(data, csvData);        csvData.append(STR_CRLF);
        if (!ZZStringUtil.isNull(tailString)) {
            csvData.append(tailString);
            csvData.append(STR_CRLF);
        }        return csvData.toString();    }    private static void convertDataToString(List data, StringBuffer csvData) {
        if (data == null) {
            return;
        }        final int rowSize = data.size();
        for (int iRow = 0; iRow < rowSize; iRow++) {
            List rowData = (List) data.get(iRow);
            final int colSize = rowData.size();
            for (int iCol = 0; iCol < colSize; iCol++) {                csvData.append(adjustCsv((String) rowData.get(iCol)));
                if (iCol < colSize - 1) {
                    csvData.append(STR_COMMA);
                }
            }            if (iRow < rowSize - 1) {
                csvData.append(STR_CRLF);
            }
        }
    }
    
     public static String adjustCsv(String paramObj) {
        if (paramObj == null) {
            paramObj = "";
        }
        String str = paramObj;        if (0 <= str.indexOf(STR_CRLF)) {
            str = str.replaceAll(STR_CRLF, STR_LF);
        }        if (0 <= str.indexOf(STR_CR)) {
            str = str.replaceAll(STR_CR, STR_LF);
        }        boolean isNecessary = false;        if (0 <= str.indexOf(STR_LF)) {
            isNecessary = true;
        }        if (0 <= str.indexOf(STR_COMMA)) {
            isNecessary = true;
        }        if (0 <= str.indexOf(STR_DOUBLE_QUART)) {
            str = str.replaceAll(STR_DOUBLE_QUART, 
                STR_DOUBLE_QUART + STR_DOUBLE_QUART);
            isNecessary = true;
        }        if (isNecessary) {
            StringBuffer sb = new StringBuffer();
            sb.append(STR_DOUBLE_QUART);
            sb.append(str);
            sb.append(STR_DOUBLE_QUART);
            str = sb.toString();
        }
        return str;
    }
    
    public static final String STR_COMMA = ",";    public static final String STR_DOUBLE_QUART = "\"";    public static final String STR_CRLF = "\r\n";    public static final String STR_LF = "\n";    public static final String STR_CR = "\r";

Answer 4

读的话，就纯粹是对FormFile的操作了。