/**   *          *         導(dǎo)出生成csv格式的文件   * @author     ccg   * @param     titles csv格式頭文   * @param     propertys 需要導(dǎo)出的數(shù)據(jù)實(shí)體的屬性，注意與title一一對(duì)應(yīng)   * @param     list 需要導(dǎo)出的對(duì)象集合   * @return   * @throws     IOException   * Created     2017年1月5日 上午10:51:44   * @throws     IllegalAccessException    * @throws     IllegalArgumentException    */  public static <T> String exportCsv(String[] titles,String[] propertys,List<T> list) throws IOException, IllegalArgumentException, IllegalAccessException{    File file = new File("d://test.csv");    //構(gòu)建輸出流，同時(shí)指定編碼    OutputStreamWriter ow = new OutputStreamWriter(new FileOutputStream(file), "gbk");        //csv文件是逗號(hào)分隔，除第一個(gè)外，每次寫入一個(gè)單元格數(shù)據(jù)后需要輸入逗號(hào)    for(String title : titles){      ow.write(title);      ow.write(",");    }    //寫完文件頭后換行    ow.write("/r/n");    //寫內(nèi)容    for(Object obj : list){      //利用反射獲取所有字段      Field[] fields = obj.getClass().getDeclaredFields();      for(String property : propertys){        for(Field field : fields){          //設(shè)置字段可見性          field.setAccessible(true);           if(property.equals(field.getName())){            ow.write(field.get(obj).toString());            ow.write(",");            continue;          }        }      }      //寫完一行換行      ow.write("/r/n");    }    ow.flush();    ow.close();    return "0";  }

public void test() throws IOException, IllegalArgumentException, IllegalAccessException{    String[] titles = new String[]{"ID","姓名"};    String[] propertys = new String[]{"id","name"};    List<User> list = new ArrayList<User>();    User user;    user = new User();    user.setId(1L);    user.setName("張三");    list.add(user);    user = new User();    user.setId(2L);    user.setName("李四");    list.add(user);    CsvUtil.getInstance().exportCsv(titles,propertys, list);  }