javacsv

File file = null;
        OutputStreamWriter out = null;
        CsvWriter writer = null;
        Page<Audit> page = getPage(pageNo, pageSize, begin, end, userId, opObject, opType);
        List<Audit> list = page.getResult();
        String fileName = DateUtil.format(new Date(), "yyyyMMddhhmmss");
        fileName += (int)Math.random()*100 + ".csv";
        FileUtils.makeDir(filePath);
        try
        {
            file = new File(filePath + fileName);
            out = new OutputStreamWriter(new FileOutputStream(file), ServletUtils.DEFAULT_ENCODING);
            //set bom to utf-8 for excel to read
            out.write(0xFEFF);
            writer = new CsvWriter(out, ',');
            writer.writeRecord(new String[]{"时间", "操作者", "IP", "事件类型", "操作对象", "结果", "备注"});
            for(Audit audit:list){
                writer.write(DateUtil.format(audit.getTime()));
                writer.write(audit.getUserId());
                writer.write(audit.getIp());
                writer.write(audit.getOpType());
                writer.write(audit.getOpObject());
                writer.write(audit.getOpResult());
                writer.write(audit.getOpMemo());
                writer.endRecord();
            }
            writer.flush();
        }
        catch (IOException e)
        {
            throw new ServiceException("读写审计日志文件时出错!", e);
        }finally{
            if(writer!=null){
                writer.close();
            }
            if(out!=null){
                out.close();
            }
        }
        return file;