blocks|key|2614803|text|如果您只需要向响应体快速输出一些内容，您可以在控制器上添加如下方法.|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2614804|public+async+Task+ContentAction()
{
++++var+jsonString+=+"{\"test\":1,\"output\":false}";
++++byte[]+data+=+Encoding.UTF8.GetBytes(jsonString);
++++Response.ContentType+=+"application/json";
++++await+Response.Body.WriteAsync(data,+0,+data.Length);
}|code-block|syntax|javascript|2614805|然后，您可以像这样从视图中调用此控制器方法..。|2614806|<div>
++++<a+asp-controller="Home"+asp-action="ContentAction"+class="btn+btn-success+confirmCreate">
++++++++Generate+Response
++++++++<i+class="fa+fa-angle-left">
++++</a>
</div>|2614807|这将输出像这样的值。|2614808|{"test":1,"value":false}|2614809|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

If you just need to output something quick to the response body you can add a method on your controller like this...

<pre><code>public async Task ContentAction()
{
 var jsonString = "{\"test\":1,\"output\":false}";
 byte[] data = Encoding.UTF8.GetBytes(jsonString);
 Response.ContentType = "application/json";
 await Response.Body.WriteAsync(data, 0, data.Length);
}
</code></pre>

You can then call this controller method from your view like this...

<pre><code>&lt;div&gt;
 &lt;a asp-controller="Home" asp-action="ContentAction" class="btn btn-success confirmCreate"&gt;
 Generate Response
 &lt;i class="fa fa-angle-left"&gt;&lt;/i&gt;
 &lt;/a&gt;
&lt;/div&gt;
</code></pre>

This will output values like this..

<pre><code>{"test":1,"value":false}
</code></pre>

blocks|key|2135152|text|最后，数据库实际上保存在bin\Debug\netcoreapp1.0中。(我找错了文件夹)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2135153|但是我仍然不知道如何在asp.net内核中显示一个简单的消息！|2135154|我正在学习asp.net核心%2B其他东西，只是为了创建一个asp.net数据库驱动的网站，但这并不容易。简单的事情很难实现。|2135155|使用wpf，c#+%2B+mvvm是很棒的，我希望我可以用它们来进行web开发。但是嘿，我们生活和学习。:-)|2135156|谢谢。|2135157|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

Well in the end the database is actually saved in bin\Debug\netcoreapp1.0.(I was looking in the wrong folder).

But I still don't know how to show a simple message in asp.net core!

I am learning asp.net core + loads of other things just to create an asp.net database driven website, but it's not easy. simple things are hard to implement.

Using wpf, c# + mvvm is great, I wish I could use them instead for web development. But hey we live and learn. :-)

Thanks.

blocks|key|521482|text|下面是如何将连接字符串从appsettings.json输出到视图中的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|521483|首先，这是如何在appsettings.json中定义连接字符串的。|521484|"database":+{
"connection":+"Data+Source=.;Initial+Catalog=OdeToFood;Integrated++Security=True;Connect+Timeout=15;Encrypt=False;TrustServerCertificate=True;ApplicationIntent=ReadWrite;MultiSubnetFailover=False"|code-block|syntax|javascript|521485|}|521486|创建一个类来存储连接字符串|521487|using+System;
using+System.Collections.Generic;
using+System.Linq;
using+System.Threading.Tasks;

namespace+CoreTest
{
++++public+class+AppSettings
++++{
++++++++public+string+connection+{+get;+set;+}
++++}
}|521488|更新startup.cs文件|521489|确保构造函数正在读取appsettings.json文件|521490|public+Startup(IHostingEnvironment+env)
++++{
++++++++var+builder+=+new+ConfigurationBuilder()
++++++++++++.SetBasePath(env.ContentRootPath)
++++++++++++.AddJsonFile("appsettings.json",+optional:+true,+reloadOnChange:+true)
++++++++++++.AddJsonFile($"appsettings.{env.EnvironmentName}.json",+optional:+true)
++++++++++++.AddEnvironmentVariables();
++++++++Configuration+=+builder.Build();
++++}|521491|将这些行添加到ConfigureServices|521492|+services.AddOptions();
+services.Configure<AppSettings>(Configuration.GetSection("database"));|521493|更新控制器|521494|+public+class+HomeController+:+Controller
{
++++private+AppSettings+_AppSettings;

++++public+HomeController(IOptions<AppSettings>+settings)
++++{
++++++++_AppSettings+=+settings.Value;
++++}|521495|添加控制器方法|521496|+public+async+Task+ContentAction()
++++{
++++++++var+constr+=+_AppSettings.connection;
++++++++var+jsonString+=+"{\"connectionString\""%2B+constr+%2B+"}";
++++++++byte[]+data+=+Encoding.UTF8.GetBytes(jsonString);
++++++++Response.ContentType+=+"application/json";
++++++++await+Response.Body.WriteAsync(data,+0,+data.Length);
++++}|521497|从视图中调用控制器方法|521498|+<div>
++++<a+asp-controller="Home"+asp-action="ContentAction"+class="btn+btn-++success+confirmCreate">
++++++++Generate+Response
++++++++<i+class="fa+fa-angle-left">
++++</a>
</div>|521499|输出连接字符串|521500|{"connectionString"Data+Source=.;Initial+Catalog=OdeToFood;Integrated+++++Security=True;Connect+Timeout=15;Encrypt=False;TrustServerCertificate=True;ApplicationIntent=ReadWrite;MultiSubnetFailover=False}|521501|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1H|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1I|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1J|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1K|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|1L|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|1M|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1N|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|1O|8|@]|9|@]|A|$G|H]]|$1|U|3|V|5|6|7|1P|8|@]|9|@]|A|$]]|$1|W|3|X|5|F|7|1Q|8|@]|9|@]|A|$G|H]]|$1|Y|3|Z|5|6|7|1R|8|@]|9|@]|A|$]]|$1|10|3|11|5|F|7|1S|8|@]|9|@]|A|$G|H]]|$1|12|3|13|5|6|7|1T|8|@]|9|@]|A|$]]|$1|14|3|15|5|F|7|1U|8|@]|9|@]|A|$G|H]]|$1|16|3|17|5|6|7|1V|8|@]|9|@]|A|$]]|$1|18|3|19|5|F|7|1W|8|@]|9|@]|A|$G|H]]|$1|1A|3|1B|5|6|7|1X|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|F|7|1Y|8|@]|9|@]|A|$G|H]]|$1|1E|3|-4|5|6|7|1Z|8|@]|9|@]|A|$]]]|1F|$]]

Here is how you can output your connection string from your appsettings.json into your view.

First this is how my connection string is defined in the appsettings.json

<pre><code>"database": {
"connection": "Data Source=.;Initial Catalog=OdeToFood;Integrated Security=True;Connect Timeout=15;Encrypt=False;TrustServerCertificate=True;ApplicationIntent=ReadWrite;MultiSubnetFailover=False"
</code></pre>

}

Create a class to store the connection string

<pre><code>using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace CoreTest
{
 public class AppSettings
 {
 public string connection { get; set; }
 }
}
</code></pre>

Update the startup.cs file

Ensure the constructor is reading the appsettings.json file

<pre><code>public Startup(IHostingEnvironment env)
 {
 var builder = new ConfigurationBuilder()
 .SetBasePath(env.ContentRootPath)
 .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
 .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
 .AddEnvironmentVariables();
 Configuration = builder.Build();
 }
</code></pre>

Add these lines to ConfigureServices

<pre><code> services.AddOptions();
 services.Configure&lt;AppSettings&gt;(Configuration.GetSection("database"));
</code></pre>

Update the controller

<pre><code> public class HomeController : Controller
{
 private AppSettings _AppSettings;

 public HomeController(IOptions&lt;AppSettings&gt; settings)
 {
 _AppSettings = settings.Value;
 }
</code></pre>

Add the controller method

<pre><code> public async Task ContentAction()
 {
 var constr = _AppSettings.connection;
 var jsonString = "{\"connectionString\""+ constr + "}";
 byte[] data = Encoding.UTF8.GetBytes(jsonString);
 Response.ContentType = "application/json";
 await Response.Body.WriteAsync(data, 0, data.Length);
 }
</code></pre>

Call the controller method from your view

<pre><code> &lt;div&gt;
 &lt;a asp-controller="Home" asp-action="ContentAction" class="btn btn- success confirmCreate"&gt;
 Generate Response
 &lt;i class="fa fa-angle-left"&gt;&lt;/i&gt;
 &lt;/a&gt;
&lt;/div&gt;
</code></pre>

Output the connection string

<pre><code>{"connectionString"Data Source=.;Initial Catalog=OdeToFood;Integrated Security=True;Connect Timeout=15;Encrypt=False;TrustServerCertificate=True;ApplicationIntent=ReadWrite;MultiSubnetFailover=False}
</code></pre>

I am learning asp.net core 1.0.1 and I have successfully connected to an SQLite database. The connection string is saved in <code>appsettings.json</code>. I put the same database, one in the bin folder and one in the netcoreapp1.0.

I can create a new record and it gets saved. I checked both databases using SQLite manager in Firefox to see which one is being used but there is no saved data on both of them.

<ol>
<li>So where is the database that I am working on saved?</li>
<li>I tried to use some kind of messageBox to show the connection string path but there's no message box in asp.net core. How can I show messages in asp.net core?

<pre><code> // appsettings.json
 "ConnectionStrings": {
 "MyDatabase": "Data Source=MyDb.sqlite"
 }
</code></pre></li>
</ol>

asp.net core database location and messaging

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我正在学习asp.net核心1.0.1，我已经成功地连接到了一个SQLite数据库。连接字符串保存在appsettings.json中。我把同一个数据库放在bin文件夹中，一个放在netcoreapp1.0中。我可以创建一个新的记录，它会被保存。我使用火狐中的SQLite管理器检查了两个数据库，以确定使用的是哪个数据库...

问asp.net核心数据库位置和消息传递
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问asp.net核心数据库位置和消息传递EN