使用Json过程中的一些问题-优快云博客

本文介绍了一个Java Web应用程序中用于创建文件夹的API实现方法。通过接收HTTP POST请求，该API允许用户指定文件夹名称及路径，并利用fileService进行文件夹的实际创建操作。若创建成功，则返回创建日期；若失败则返回错误信息。此外，还提供了一种备选方案以应对NoClassDefFoundError异常。

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@RequestMapping(value = "doAddFolder", method = RequestMethod.POST)
public void AddFolder(HttpServletRequest request,
HttpServletResponse response) {
String userName = (String) request.getSession().getAttribute("account");
String name = request.getParameter("name");
String path = request.getParameter("path");
// String date = testcaseService.createFolder(path, name);
String date = "";
String msg = "";
try {
date = fileService.addFile(userName, path, name);
} catch (Exception e) {
msg = "You are not allowed to create new file here.";
}
JSONObject jsonobj = new JSONObject();
jsonobj.put("user_runner", Constants.USER_ROLE_RUNNER);
jsonobj.put("msg", msg);
jsonobj.put("date", date);
this.sendJson(response, jsonobj);
}

public void sendJson(HttpServletResponse response, JSONObject jsonobj) {
try {
PrintWriter out = response.getWriter();
out.print(jsonobj);
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}

}

如果报NoClassDefFoundError，也可使用：

public void getAvailableAgent(HttpServletRequest request,
HttpServletResponse response) {
String path = request.getParameter("path");
path = path+":pht";
// JSONObject jsonObj = new JSONObject();
// jsonObj.put("path", path);
Gson gson = new Gson();
String jsonObj = gson.toJson(path);
System.out.println("path:"+path);
this.sendJson(response, jsonObj);
}

public void sendJson(HttpServletResponse response, String jsonobj) {
try {
PrintWriter out = response.getWriter();
out.print(jsonobj);
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}

}

转载于:https://www.cnblogs.com/puhongtao/p/6676970.html