csv文件生成及删除目录下的所有文件

import java.io.BufferedWriter;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStreamWriter;import java.util.ArrayList;import java.util.Iterator;import java.util.LinkedHashMap;import java.util.List;import java.util.Map;import org.apache.commons.beanutils.BeanUtils;/**  * 文件操作  * @author   * @version $Id: CSVUtils.java, v 0.1         2014年7月22日 下午2:19:59 Exp $  */  public class CSVUtils {        /**      * 生成为CVS文件       * @param exportData      *              源数据List      * @param map      *              csv文件的列表头map      * @param outPutPath      *              文件路径      * @param fileName      *              文件名称      * @return      */      @SuppressWarnings("rawtypes")      public static File createCSVFile(List exportData, LinkedHashMap map, String outPutPath,                                       String fileName) {          File csvFile = null;          BufferedWriter csvFileOutputStream = null;          try {              File file = new File(outPutPath);              if (!file.exists()) {                  file.mkdir();              }              //定义文件名格式并创建              System.out.println("=="+fileName);            csvFile = new File(outPutPath + fileName + ".csv");            File parent = csvFile.getParentFile();            if (parent != null && !parent.exists()) {                parent.mkdirs();            }            csvFile.createNewFile();            //csvFile = File.createTempFile(fileName, ".csv", new File(outPutPath));             System.out.println("csvFile：" + csvFile);              // UTF-8使正确读取分隔符","                csvFileOutputStream = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(                      csvFile), "GBK"), 1024);            System.out.println("csvFileOutputStream：" + csvFileOutputStream);              // 写入文件头部                for (Iterator propertyIterator = map.entrySet().iterator(); propertyIterator.hasNext();) {                  java.util.Map.Entry propertyEntry = (java.util.Map.Entry) propertyIterator.next();                  csvFileOutputStream.write((String) propertyEntry.getValue() != null ? new String(                      ((String) propertyEntry.getValue()).getBytes("GBK"), "GBK") : "");                  if (propertyIterator.hasNext()) {                      csvFileOutputStream.write(",");                  }                  System.out.println(new String(((String) propertyEntry.getValue()).getBytes("GBK"),                      "GBK"));              }              csvFileOutputStream.write("\r\n");              // 写入文件内容                for (Iterator iterator = exportData.iterator(); iterator.hasNext();) {                  Object row = (Object) iterator.next();                  for (Iterator propertyIterator = map.entrySet().iterator(); propertyIterator                      .hasNext();) {                      java.util.Map.Entry propertyEntry = (java.util.Map.Entry) propertyIterator                          .next();                      csvFileOutputStream.write((String) BeanUtils.getProperty(row,                          ((String) propertyEntry.getKey()) != null? (String) propertyEntry.getKey()                              : ""));                      if (propertyIterator.hasNext()) {                          csvFileOutputStream.write(",");                      }                  }                  if (iterator.hasNext()) {                      csvFileOutputStream.write("\r\n");                  }              }              csvFileOutputStream.flush();          } catch (Exception e) {              e.printStackTrace();          } finally {              try {                  csvFileOutputStream.close();              } catch (IOException e) {                  e.printStackTrace();              }          }          return csvFile;      }        public static boolean delAllFile(String path) {        boolean flag = false;        File file = new File(path);        if (!file.exists()) {          return flag;        }        if (!file.isDirectory()) {          return flag;        }        String[] tempList = file.list();        File temp = null;        for (int i = 0; i < tempList.length; i++) {           if (path.endsWith(File.separator)) {              temp = new File(path + tempList[i]);           } else {               temp = new File(path + File.separator + tempList[i]);           }           if (temp.isFile()) {              temp.delete();           }           if (temp.isDirectory()) {              delAllFile(path + "/" + tempList[i]);//先删除文件夹里面的文件             // delFolder(path + "/" + tempList[i]);//再删除空文件夹              flag = true;           }        }        return flag;      }       /**      * 测试数据      * @param args      */      @SuppressWarnings("unchecked")public static void main(String[] args) {      CSVUtils.delAllFile("F:\\download\\aa");//删除目录下的所有文件        System.out.println("deleted");        @SuppressWarnings("rawtypes")List exportData = new ArrayList<Map>();          @SuppressWarnings("rawtypes")Map row1 = new LinkedHashMap<String, String>();          row1.put("1", "流水号");          row1.put("2", "外部流水号(账单号) ");          row1.put("3", "支付时间");          row1.put("4", "金额");          row1.put("5", "备注");          row1.put("6", "勾兑结果");         row1.put("7", "");        row1.put("8", "");        row1.put("9", "");        row1.put("10", "");        row1.put("11", "");        row1.put("12", "");        exportData.add(row1);          row1 = new LinkedHashMap<String, String>();          row1.put("1", "20130411000052060000000200023031");          row1.put("2", "1000030001");          row1.put("3", "2013/04/11 20:17");          row1.put("4", "10000");          row1.put("5", ",xxx");          row1.put("6", "success");         row1.put("7", "");        row1.put("8", "");        row1.put("9", "");        row1.put("10", "");        row1.put("11", "");        row1.put("12", "");        exportData.add(row1);          @SuppressWarnings("rawtypes")LinkedHashMap map = new LinkedHashMap();          map.put("1", "总数");          map.put("2", "11");          map.put("3", "总金额");          map.put("4", "50000");          map.put("5", "成功笔数");          map.put("6", "4");         map.put("7", "成功金额");         map.put("8", "40000");         map.put("9", "失败笔数");         map.put("10", "1");         map.put("11", "失败金额");         map.put("12", "10000");           String path = "F:\\download\\";          String fileName = "test";          File file = CSVUtils.createCSVFile(exportData, map, path, fileName);          String fileName2 = file.getName();          System.out.println("文件名称：" + fileName2);      }  }