WebApi读取配置文件帮助类

 1     /// <summary>
 2     /// appsettings.json操作类
 3     /// </summary>
 4     public class AppSettings
 5     {
 6         static IConfiguration Configuration { get; set; }
 7         static string contentPath { get; set; }
 8 
 9         public AppSettings(string contentPath)
10         {
11             string Path = "appsettings.json";
12             Configuration = new ConfigurationBuilder()
13                 .SetBasePath(contentPath)
14                 .Add(new JsonConfigurationSource
15                 {
16                     Path = Path,
17                     Optional = false,
18                     ReloadOnChange = true
19                 }).Build();
20         }
21 
22         public AppSettings(IConfiguration configuration)
23         {
24             Configuration = configuration;
25         }
26         /// <summary>
27         /// 封装要操作的字符
28         /// </summary>
29         /// <param name="sections">节点配置</param>
30         /// <returns></returns>
31         public static string app(params string[] sections)
32         {
33             try
34             {
35 
36                 if (sections.Any())
37                 {
38                     return Configuration[string.Join(":", sections)];
39                 }
40             }
41             catch (Exception)
42             {
43 
44             }
45 
46             return "";
47         }
48 
49         /// <summary>
50         /// 递归获取配置信息数组
51         /// </summary>
52         /// <typeparam name="T"></typeparam>
53         /// <param name="sections"></param>
54         /// <returns></returns>
55         public static List<T> app<T>(params string[] sections)
56         {
57             List<T> list = new List<T>();
58             Configuration.Bind(string.Join(":", sections), list);
59             return list;
60         }
61     }

第二种

 1 public class AppSettings
 2 {
 3     static IConfiguration Configuration { get; set; }
 4 
 5     public AppSettings(IConfiguration configuration)
 6     {
 7         Configuration = configuration;
 8     }
 9 
10     /// <summary>
11     /// 封装要操作的字符
12     /// </summary>
13     /// <param name="sections">节点配置</param>
14     /// <returns></returns>
15     public static string App(params string[] sections)
16     {
17         try
18         {
19             if (sections.Any())
20             {
21                 return Configuration[string.Join(":", sections)];
22             }
23         }
24         catch (Exception ex)
25         {
26             Console.WriteLine(ex.Message);
27         }
28 
29         return "";
30     }
31 
32     /// <summary>
33     /// 递归获取配置信息数组
34     /// </summary>
35     /// <typeparam name="T"></typeparam>
36     /// <param name="sections"></param>
37     /// <returns></returns>
38     public static List<T> App<T>(params string[] sections)
39     {
40         List<T> list = new();
41         try
42         {
43             if (Configuration != null && sections.Any())
44             {
45                 Configuration.Bind(string.Join(":", sections), list);
46             }
47         }
48         catch
49         {
50             return list;
51         }
52         return list;
53     }
54     public static T Bind<T>(string key, T t)
55     {
56         Configuration.Bind(key, t);
57         return t;
58     }
59 
60 
61     public static T GetAppConfig<T>(string key, T defaultValue = default)
62     {
63         T setting = (T)Convert.ChangeType(Configuration[key], typeof(T));
64         var value = setting;
65         if (setting == null)
66             value = defaultValue;
67         return value;
68     }
69 
70     /// <summary>
71     /// 获取配置文件 
72     /// </summary>
73     /// <param name="key">eg: WeChat:Token</param>
74     /// <returns></returns>
75     public static string GetConfig(string key)
76     {
77         return Configuration[key];
78     }
79 
80     /// <summary>
81     /// 获取配置节点并转换成指定类型
82     /// </summary>
83     /// <typeparam name="T">节点类型</typeparam>
84     /// <param name="key">节点路径</param>
85     /// <returns>节点类型实例</returns>
86     public static T Get<T>(string key)
87     {
88         return Configuration.GetSection(key).Get<T>();
89     }
90 }