{"id":179614,"date":"2024-11-09T03:17:52","date_gmt":"2024-11-08T19:17:52","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179614\/"},"modified":"2024-11-09T03:17:53","modified_gmt":"2024-11-08T19:17:53","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-mvc-%e4%b8%ad%e5%8b%95%e6%85%8b%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%ef%bc%9f-mvc-%e5%8b%95%e6%85%8b%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179614\/","title":{"rendered":"\u5982\u4f55\u5728 MVC \u4e2d\u52d5\u614b\u6dfb\u52a0\u6578\u64da\u5eab\u9023\u63a5\uff1f (mvc \u52d5\u614b\u6dfb\u52a0\u6578\u64da\u5eab\u9023\u63a5)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-mvc-%e4%b8%ad%e5%8b%95%e6%85%8b%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%ef%bc%9f-mSFckROeYe\">\u5982\u4f55\u5728 MVC \u4e2d\u52d5\u614b\u6dfb\u52a0\u6578\u64da\u5eab\u9023\u63a5\uff1f<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cMVC\uff08\u6a21\u578b-\u8996\u5716-\u63a7\u5236\u5668\uff09\u67b6\u69cb\u5df2\u7d93\u6210\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u8a2d\u8a08\u6a21\u5f0f\u3002\u9019\u7a2e\u6a21\u5f0f\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7d44\u7e54\u4ee3\u78bc\uff0c\u9084\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5f0f\u7684\u53ef\u7dad\u8b77\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5728\u904b\u884c\u6642\u52d5\u614b\u6dfb\u52a0\u6578\u64da\u5eab\u9023\u63a5\uff0c\u4ee5\u4fbf\u6839\u64da\u4e0d\u540c\u7684\u9700\u6c42\u6216\u74b0\u5883\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 MVC \u4e2d\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e5%8b%95%e6%85%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e9%9c%80%e6%b1%82-mSFckROeYe\">\u52d5\u614b\u6578\u64da\u5eab\u9023\u63a5\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u67d0\u4e9b\u61c9\u7528\u5834\u666f\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u6839\u64da\u7528\u6236\u7684\u9078\u64c7\u6216\u5176\u4ed6\u689d\u4ef6\u4f86\u9023\u63a5\u4e0d\u540c\u7684\u6578\u64da\u5eab\u3002\u4f8b\u5982\uff0c\u4f01\u696d\u53ef\u80fd\u6709\u591a\u500b\u5ba2\u6236\uff0c\u6bcf\u500b\u5ba2\u6236\u90fd\u6709\u81ea\u5df1\u7684\u6578\u64da\u5eab\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u9700\u8981\u80fd\u5920\u6839\u64da\u7528\u6236\u7684\u8acb\u6c42\u52d5\u614b\u5730\u9078\u64c7\u548c\u9023\u63a5\u5230\u76f8\u61c9\u7684\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e5%8b%95%e6%85%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e6%ad%a5%e9%a9%9f-mSFckROeYe\">\u5be6\u73fe\u52d5\u614b\u6578\u64da\u5eab\u9023\u63a5\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e9%85%8d%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e5%ad%97%e7%ac%a6%e4%b8%b2-mSFckROeYe\">1. \u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u5b57\u7b26\u4e32<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5728\u61c9\u7528\u7a0b\u5f0f\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u5b9a\u7fa9\u6578\u64da\u5eab\u9023\u63a5\u5b57\u7b26\u4e32\u3002\u9019\u4e9b\u9023\u63a5\u5b57\u7b26\u4e32\u53ef\u4ee5\u5b58\u5132\u5728 <code>appsettings.json<\/code> \u6587\u4ef6\u4e2d\uff0c\u6216\u8005\u4f7f\u7528\u5176\u4ed6\u914d\u7f6e\u7ba1\u7406\u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>{\n  \"ConnectionStrings\": {\n    \"DefaultConnection\": \"Server=myServer;Database=myDB;User Id=myUser;Password=myPass;\",\n    \"Client1Connection\": \"Server=myServer;Database=Client1DB;User Id=myUser;Password=myPass;\",\n    \"Client2Connection\": \"Server=myServer;Database=Client2DB;User Id=myUser;Password=myPass;\"\n  }\n}<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%8a%e4%b8%8b%e6%96%87-mSFckROeYe\">2. \u5275\u5efa\u6578\u64da\u5eab\u4e0a\u4e0b\u6587<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\u985e\uff0c\u9019\u500b\u985e\u5c07\u7528\u65bc\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\u793a\u4f8b\uff1a<\/p>\n<pre><code>public class ApplicationDbContext : DbContext\n{\n    public ApplicationDbContext(DbContextOptions options) : base(options) { }\n\n    public DbSet&lt;YourEntity&gt; YourEntities { get; set; }\n}<\/code><\/pre>\n<h3 id=\"3-%e5%8b%95%e6%85%8b%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-mSFckROeYe\">3. \u52d5\u614b\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u5728\u63a7\u5236\u5668\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u6839\u64da\u7528\u6236\u7684\u8acb\u6c42\u52d5\u614b\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u63a7\u5236\u5668\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u6839\u64da\u7528\u6236\u7684\u9078\u64c7\u4f86\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n<pre><code>public class YourController : Controller\n{\n    private readonly IConfiguration _configuration;\n\n    public YourController(IConfiguration configuration)\n    {\n        _configuration = configuration;\n    }\n\n    public IActionResult GetData(string client)\n    {\n        string connectionString = client switch\n        {\n            \"Client1\" =&gt; _configuration.GetConnectionString(\"Client1Connection\"),\n            \"Client2\" =&gt; _configuration.GetConnectionString(\"Client2Connection\"),\n            _ =&gt; _configuration.GetConnectionString(\"DefaultConnection\"),\n        };\n\n        var optionsBuilder = new DbContextOptionsBuilder&lt;ApplicationDbContext&gt;();\n        optionsBuilder.UseSqlServer(connectionString);\n\n        using (var context = new ApplicationDbContext(optionsBuilder.Options))\n        {\n            var data = context.YourEntities.ToList();\n            return View(data);\n        }\n    }\n}<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-mSFckROeYe\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u6578\u64da\u5eab\u9023\u63a5\u5b57\u7b26\u4e32\u7684\u5b89\u5168\u6027\uff0c\u907f\u514d\u5c07\u654f\u611f\u4fe1\u606f\u786c\u7de8\u78bc\u5728\u4ee3\u78bc\u4e2d\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528\u9023\u63a5\u6c60\u4f86\u63d0\u9ad8\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li>\u5728\u52d5\u614b\u9023\u63a5\u6578\u64da\u5eab\u6642\uff0c\u52d9\u5fc5\u8655\u7406\u53ef\u80fd\u51fa\u73fe\u7684\u7570\u5e38\uff0c\u4ee5\u9632\u6b62\u61c9\u7528\u7a0b\u5f0f\u5d29\u6f70\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mSFckROeYe\">\u7e3d\u7d50<\/h2>\n<p>\u5728 MVC \u61c9\u7528\u7a0b\u5f0f\u4e2d\u52d5\u614b\u6dfb\u52a0\u6578\u64da\u5eab\u9023\u63a5\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u6839\u64da\u7528\u6236\u9700\u6c42\u6216\u74b0\u5883\u8b8a\u5316\u9032\u884c\u6578\u64da\u64cd\u4f5c\u7684\u60c5\u6cc1\u4e0b\u3002\u901a\u904e\u5408\u7406\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u5b57\u7b26\u4e32\u3001\u5275\u5efa\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\u4ee5\u53ca\u5728\u63a7\u5236\u5668\u4e2d\u52d5\u614b\u8a2d\u7f6e\u9023\u63a5\uff0c\u6211\u5011\u53ef\u4ee5\u9748\u6d3b\u5730\u7ba1\u7406\u591a\u500b\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u548c\u9748\u6d3b\u6578\u64da\u7ba1\u7406\u7684\u61c9\u7528\u7a0b\u5f0f\uff0c\u9019\u7a2e\u65b9\u6cd5\u7121\u7591\u662f\u503c\u5f97\u8003\u616e\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684 MVC \u61c9\u7528\u7a0b\u5f0f\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 MVC \u4e2d\u52d5\u614b\u6dfb\u52a0\u6578\u64da\u5eab\u9023\u63a5\uff0c\u5be6\u73fe\u9748\u6d3b\u7684\u6578\u64da\u7ba1\u7406\u548c\u9ad8\u6548\u7684\u61c9\u7528\u7a0b\u5e8f\u6027\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-179614","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=179614"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179614\/revisions"}],"predecessor-version":[{"id":179615,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179614\/revisions\/179615"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}