java - 解析 ReSTLet 中的表示

Question

当我尝试放入 JSONObject 时，出现 JSONException。

@Post
public String someCode(Representation rep) throws ResourceException{
    try {
        rep.getText();
    } catch (IOException e) {
        LOGGER.error("Error in receiving data from Social", e);
    }   

    try {
        JSONObject json = new JSONObject(rep);
        String username = json.getString("username");
        String password = json.getString("password");
        String firstname = json.getString("firstname");
        String lastname = json.getString("lastname");
        String phone = json.getString("phone");
        String email = json.getString("email");

        LOGGER.info("username: "+username); //JsonException
        LOGGER.info("password: "+password);
        LOGGER.info("firstname: "+firstname);
        LOGGER.info("lastname: "+lastname);
        LOGGER.info("phone: "+phone);
        LOGGER.info("email: "+email);

    } catch (JSONException e) {
        e.printStackTrace();
    } 

    return "200";
}

错误日志:

org.json.JSONException: JSONObject["username"] not found.
    at org.json.JSONObject.get(JSONObject.java:516)
    at org.json.JSONObject.getString(JSONObject.java:687)

注意:

当我尝试打印 rep.getText() 时，我得到以下数据:

username=user1&password=222222&firstname=Kevin&lastname=Tak&phone=444444444&email=tka%40gmail.com

Answer 1

您的代表对象不是 JSON 对象。我实际上认为当你将它传递给 JSONObject() 时，它只会捕获一个奇怪的字符串。我建议将其解析为数组:

Map<String, String> query_pairs = new LinkedHashMap<String, String>();
String query = rep.getText();
String[] pairs = query.split("&");
for (String pair : pairs) {
    int idx = pair.indexOf("=");
    query_pairs.put(URLDecoder.decode(pair.substring(0, idx), "UTF-8"), URLDecoder.decode(pair.substring(idx + 1), "UTF-8"));
}