.net core 读取配置文件json

最新推荐文章于 2025-07-01 21:01:03 发布

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本文介绍了EFConfig.json文件的结构及其使用方式，包括连接字符串的定义与读取。通过示例展示了如何利用.NET Core配置系统加载JSON配置文件，并演示了基于配置文件信息创建数据库上下文及执行基本的数据保存操作。

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EFConfig.json:::::

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{

"Data": "DevelopmentData",
"ConnectionStrings": {
"DefaultConnection": "数据库1",
"DevConnection": "数据库2"
},

"compilerOptions": {
"noImplicitAny": false,
"noEmitOnError": true,
"removeComments": false,
"sourceMap": true,
"target": "es5"
},
"exclude": [
"node_modules",
"wwwroot"
]

}

using HMFOUCC.Common;
using HMFOUCC.EF;
using HMFOUCC.Models;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.Json;
using Microsoft.Extensions.DependencyInjection;
using System;
using System.IO;

namespace TestData
{
class Program
{
static void Main(string[] args)
{
try
{

var builder = new ConfigurationBuilder();
builder.AddJsonFile("testjson.json");

var configuration = builder.Build();

var mjson = new ConfigurationBuilder()
// .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
.AddJsonFile("ts123config1.json")
.Build();

var nol= mjson.GetSection("noImplicitAny");

var path = System.AppDomain.CurrentDomain.BaseDirectory;
var config = new ConfigurationBuilder().SetBasePath(path).AddJsonFile("EFConfig.json").Build();

var data = config["data"];
var mm = config["ConnectionStrings:DefaultConnection"];
var mx = config["ConnectionStrings:DevConnection"];
Console.WriteLine(data);
Console.WriteLine(mm);
}
catch (Exception ex)
{
Console.WriteLine(ex);

throw;
}

string CountStr = "受影响行数：";
Order order = new Order()
{
Price = 10,
Status = 1
};
DBContext dBContext = new DBContext();
dBContext.Order.Add(order);
int m= dBContext.SaveChanges();
if (m>0)
{
Console.WriteLine(CountStr+m);
}
Console.WriteLine("Hello World!");
Console.ReadKey();
}
}
}