在Java中有時(shí)候需要傳list，這時(shí)候可以傳字符串，后臺(tái)接收字符串后轉(zhuǎn)換成對(duì)應(yīng)的對(duì)象list，具體實(shí)現(xiàn)如下：

方法一

1.在controller中：

@PostMapping("/api/classes/add")public Result classesAdd(Integer lineId, String params,String param){try {List<Classes> classesList = JSONArray.parseArray(params, Classes.class);List<Classes> classes = JSONArray.parseArray(param, Classes.class);//根據(jù)線路id查詢線路信息Line line = lineService.getDao().findById(lineId);if(null==line){return Result.fail(902,"該班次對(duì)應(yīng)的線路不存在！");}//創(chuàng)建班次對(duì)象并保存到數(shù)據(jù)庫(kù)for (Classes s:classesList) {s.setLine(line);classesService.getDao().save(s);}for (Classes s:classes) {s.setLine(line);classesService.getDao().save(s);}return Result.ok("新增班次成功");}catch (Exception e){e.printStackTrace();return Result.fail(901,"新增班次失敗");}}

2.使用postman測(cè)試接口，如下：

?

方法二

1.在controller中代碼如下：

@PostMapping("/api/classes/add")public Result classesAdd(String params,HttpServletRequest request){try {JSONObject jsonObject = JSONObject.parseObject(params);Integer lineId = (Integer) jsonObject.get("lineId");JSONArray obj = (JSONArray) jsonObject.get("params");JSONArray param = (JSONArray) jsonObject.get("param");//獲取當(dāng)前操作用戶idString userid = tokenService.valid(request.getHeader("token"));//根據(jù)線路id查詢線路信息Line line = lineService.getDao().findById(lineId);if(null==line){return Result.fail(902,"該班次對(duì)應(yīng)的線路不存在！");}//創(chuàng)建班次對(duì)象并保存到數(shù)據(jù)庫(kù)for (Object s:obj) {JSONObject object = (JSONObject) JSON.toJSON(s);Classes build = Classes.builder().line(line).seatNum((Integer) object.get("seatNum")).isOrder(object.get("isOrder").equals(0) ? false : true).direction((String) object.get("direction")).firstTime((String) object.get("firstTime")).laterTime((String) object.get("laterTime")).build();classesService.getDao().save(build);}for (Object s:param) {JSONObject object = (JSONObject) JSON.toJSON(s);Classes build = Classes.builder().line(line).seatNum((Integer) object.get("seatNum")).isOrder(object.get("isOrder").equals(0) ? false : true).direction((String) object.get("direction")).firstTime((String) object.get("firstTime")).laterTime((String) object.get("laterTime")).build();classesService.getDao().save(build);}return Result.ok("新增班次成功");}catch (Exception e){e.printStackTrace();return Result.fail(901,"新增班次失敗");}}

?2.使用postman測(cè)試接口，結(jié)果如下：

上圖中params的完整數(shù)據(jù)如下：

{"lineId":1,"params":[{"firstTime":"09:41","laterTime":"09:42","seatNum":1,"isOrder":0,"direction":"forward"}],"param":[{"firstTime":"09:41","laterTime":"09:42","seatNum":1,"isOrder":0,"direction":"reverse"}]}

?

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