Ajax:使用JSON 进行数据传输
//设置response头HttpServletResponse response = getResponse();response.setHeader("Pragma", "no-cache");response.setHeader("Cache-Control", "no-cache");response.setHeader("Expires", "0");response.setHeader("Content-Type", "text/json;charset=utf-8");PrintWriter printWriter = response.getWriter();//获取数据，假设我们需要的数据为WorkerFree，由WorkerFreeJSON负责输出格式WorkerFree workerFree = workerFreeService.workerFreeById(id);WorkerFreeJSON wf = new WorkerFreeJSON();wf.setName(workerFree.getName());wf.setAge(workerFree.getAge());wf.setContent(workerFree.getContent());//记得关闭流printWriter.write(JSONArray.fromObject(wf).toString());printWriter.close();
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