我在尝试执行此邮件发送方法时收到异常。
{"语法错误,命令无法识别。服务器响应为:"}
我的代码:
public async static Task SendExceptionMail(Exception e)
{
try
{
//TODO: fill..
var message = new MailMessage();
message.To.Add("other_email_than_my_email@gmail.com");
message.From = new MailAddress("my_email_in_gmail@gmail.com");
message.Subject = "Server Exception Occured";
StringBuilder sb = new StringBuilder();
sb.AppendLine("Exception occured. Stack trace:");
sb.AppendLine(e.StackTrace);
sb.AppendLine("");
sb.AppendLine("Time: " + DateTime.UtcNow);
message.Body = sb.ToString();
message.IsBodyHtml = false;
message.BodyEncoding = UTF8Encoding.UTF8;
using (var smtpClient = new SmtpClient())
{
smtpClient.Credentials = new System.Net.NetworkCredential("my_email_in_gmail@gmail.com", "very_very_complicated_password_with_numbers_and_signs");
smtpClient.Host = "smtp.gmail.com";
smtpClient.Port = 465;
smtpClient.EnableSsl = true;
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
//smtpClient.UseDefaultCredentials = false; …
Run Code Online (Sandbox Code Playgroud) 当我尝试运行 flutter doctor 时,它向我表明
"Connected devices (the doctor check crashed)
Due to an error, the doctor Check did not complete."
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我该如何解决这个问题?
我正在使用Flutter 上的GeoLocator依赖项,并且能够获取位置的实时坐标。
但我只想导出城市的广义坐标,我该怎么做。
下面的代码在使用上述依赖项时提供准确的实时位置,但我不需要。
我想要基于地理位置的城市名称。
请指导我应该如何实现它?
await Geolocator.getCurrentPosition().then((value) => {
_positionItems.add(_PositionItem(
_PositionItemType.position, value.toString()))
});
Run Code Online (Sandbox Code Playgroud) 我在后台解析 JSON 时遇到了困难。我正在使用FoodData API。
以下是对一道菜的响应示例:
{
"fdcId": 167782,
"description": "Abiyuch, raw",
"dataType": "SR Legacy",
"publicationDate": "2019-04-01",
"ndbNumber": "9427",
"foodNutrients": [
{
"number": "318",
"name": "Vitamin A, IU",
"amount": 100,
"unitName": "IU",
"derivationCode": "A",
"derivationDescription": "Analytical"
},
{
"number": "268",
"name": "Energy",
"amount": 290,
"unitName": "kJ",
"derivationCode": "NC",
"derivationDescription": "Calculated"
},
]
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我使用 JSON 到 DART 转换器并得到了这个输出 -
class FoodGen {
int fdcId;
String description;
String dataType;
String publicationDate;
String ndbNumber;
List<FoodNutrients> foodNutrients;
FoodGen(
{this.fdcId,
this.description,
this.dataType,
this.publicationDate,
this.ndbNumber, …
Run Code Online (Sandbox Code Playgroud) 我是编码新手,不确定如何将文本放入实际图标下的 TextButton.icon 中。请问你能帮忙吗?这是代码:
TextButton.icon(
onPressed: () => {},
icon: Icon(
Icons.add,
color: Colors.white,
size: 50,
),
label: Text(
'Label',
style: TextStyle(
color: Colors.white,
),
)),
Run Code Online (Sandbox Code Playgroud) 我刚刚制作了一个Hello World应用程序,但是文件大小非常大。有没有办法减少项目文件的大小?
我正在尝试探索应用内购买应用程序的 RevenueCat。我想构建一个示例应用程序,其中显示一些具有购买和订阅的产品。我可以将 RevenueCat 集成到我的 flutter 示例应用程序中,还是需要一个真实的应用程序来检查该流程。
我正在尝试在屏幕上创建一个包含从远程服务器加载的项目的列表。
\n Container(\n child: FutureBuilder(\n future: fetchClinicas(),\n builder: (context, snapshot) {\n if (snapshot.hasData) {\n return ListView.builder(\n itemCount: snapshot.data.length,\n shrinkWrap: true,\n itemBuilder: (BuildContext contex, index) {\n Clinica clinica = snapshot.data[index];\n return Text(\n '${clinica.nombreClinica}',\n style: TextStyle(fontSize: 20),\n );\n },\n );\n }\n return CircularProgressIndicator();\n },\n ),\n ),\n
Run Code Online (Sandbox Code Playgroud)\n这里有两个文件:
\n临床API.dart
\nFuture<List<Clinica>> fetchClinicas() async {\n String url ="https://.../get_clinicas.php";\n final response = await http.get(url);\n return clinicaFromJson(response.body);\n\n}\n
Run Code Online (Sandbox Code Playgroud)\n和模型类Clinica.dart
\nimport 'dart:convert';\n\nList<Clinica> clinicaFromJson(String str) => List<Clinica>.from(json.decode(str).map((x) => Clinica.fromJson(x)));\n\nString clinicaToJson(List<Clinica> data) => json.encode(List<dynamic>.from(data.map((x) => …
Run Code Online (Sandbox Code Playgroud) 有人能帮我吗?我只是创建反应应用程序然后我立即启动它。然后我得到了这样的错误。我对 webpack 了解不多。
CMD
./src/index.js 1:48
Module parse failed: Unexpected token (1:48)
File was processed with these loaders:
* ./node_modules/@pmmmwh/react-refresh-webpack-plugin/loader/index.js
* ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
> $RefreshRuntime$ = require('C:/Users/LENOVO/Mine/project-new/node_modules/react-refresh/runtime.js');
| $RefreshSetup$(module.id);
|
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我只是输入npx create-react-app ./
目录npm start
然后这个错误发生了。我曾尝试制作 3 个 react 应用程序,但发生了同样的事情,而且我以前从未接触过 webpack。
应用程序.js
import logo from './logo.svg';
import './App.css';
function App() {
return (
<div className="App">
<header className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<p>
Edit <code>src/App.js</code> and …
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