字符串操作

1.换行符

private static final String LINE_SEPRATOR = System.lineSeparator();

2.生成带换行的字符串

  StringBuffer buffer = new StringBuffer();
  for(String dataString : data) {
     buffer.append(dataString + LINE_SEPRATOR);
  }           

3.按行读取字符串

try (StringReader sr = new StringReader(result);
     BufferedReader br = new BufferedReader(sr)) {
            while ((line = br.readLine()) != null) {
                System.out.println("解析数据：" + "\"" + line + "\"");
                RateLog log = JSONObject.parseObject(line, RateLog.class);
                System.out.println(log.getGatherTime() + ":" + log.getSn());
            }
        } catch (IOException e) {
            e.printStackTrace();
            return;
        }