[
 {
 "path": "content_111",
 "title": "文章1",
 "imgUrl": "../../../libs/img/pptau/pf.jpg"
 }，
 {
 "path": "content_222",
 "title": "文章2",
 "imgUrl": "../../../libs/img/pptau/pf.jpg"
 }
]

String dir = request.getSession().getServletContext()
.getRealPath("/resource/test.json");

  try {
   File file = new File(dir);
   if (!file.exists()) {
    file.createNewFile();
   }
   String str= FileUtils.readFileToString(file, "UTF-8");
   List<Map> maps= (List)JSONArray.fromObject(str);
  } catch (IOException e) {
   e.printStackTrace();
  }