S.路径',0行,位置0:分析值JSON解析器异常意外遇到性格 [英] Json Parser Exception Unexpected character encountered while parsing value: S. Path '', line 0, position 0

查看:4811
本文介绍了S.路径',0行,位置0:分析值JSON解析器异常意外遇到性格的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

此代码将产生意想不到的性格异常。这有什么代码的问题吗?
错误是:类型的异常Newtonsoft.Json.JsonReaderException发生在Newtonsoft.Json.DLL但在用户代码



$ B $没有处理b

更多信息:分析
值意外遇到性格:S.路径',行0,0




  HttpClient的HTTP =新System.Net.Http.HttpClient(); 
http.DefaultRequestHeaders.Add(接受,应用/ JSON);
VAR页= http.GetStringAsync(searchUrl);
变种O =(JObject)JsonConvert.DeserializeObject(page.ToString());


解决方案

HttpClient.GetStringAsync 返回任务<串GT;



您不要等待它完成,而不是你叫的ToString()就可以了,这很可能是两种:




  • 返回任务<的全名; T> 键入

  • 返回内部的一些字符串表示的任务< T> 键入(不可能的)



因此,你有什么不JSON文档,但任务的字符串,然后您再尝试从反序列化JSON。



尝试:

 字符串页面=等待http.GetStringAsync(searchUrl ); 



 字符串页面= http.GetString(searchUrl)。结果; 


This code generates an exception of unexpected character. What is the problem with this code? Error is: An exception of type 'Newtonsoft.Json.JsonReaderException' occurred in Newtonsoft.Json.DLL but was not handled in user code

Additional information: Unexpected character encountered while parsing value: S. Path '', line 0, position 0.

HttpClient http = new System.Net.Http.HttpClient();
http.DefaultRequestHeaders.Add("accept", "Application/JSON");
var page = http.GetStringAsync(searchUrl);
var o = (JObject)JsonConvert.DeserializeObject(page.ToString());

解决方案

HttpClient.GetStringAsync returns a Task<string>.

You don't wait for it to complete, instead you call .ToString() on it, which is likely to either:

  • Return the full name of the Task<T> type
  • Return some internal string representation of the Task<T> type (unlikely)

As such, what you have is not the Json document, but the task string, which you then try to deserialize Json from.

Try:

string page = await http.GetStringAsync(searchUrl);

or:

string page = http.GetString(searchUrl).Result;

这篇关于S.路径',0行,位置0:分析值JSON解析器异常意外遇到性格的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆