- A+
所属分类:.NET技术
Lazy FileServer
非常简单的文件服务,仅实现上传然后生成url。
服务端
服务端提供统一接口,以便各子应用统一上传文件。
1. 安装
Install-Package Lazy.FileServer.Server -Version 1.0.1
2. 配置
"FileServer": { "LocalBase": "C:\upload", "HttpBase": "http://localhost", /* * 文件路径计算方式,分为Date和Hash * Date: * 格式: appName/year/month/day/上传文件名 * 重复文件处理: 重复文件追加序号, 例如上传a.txt, 存在重复,则编号为a.1.txt。 再次上传则为a.2.txt * 示例: http://localhost/spider/2022/03/03/c220210105154619.348.jpg * * Hash: * 格式: appName/hash前两位/hash3到4位/hash.扩展名 * 重复文件处理: 重复hash会覆盖 * 示例: http://localhost/spider/zq/I9/zqI98OULV8j60XbNSTTxQg==.jpg */ "FilePathCalculatorType": "hash", // 应用 "Apps": [ { "AppId": "1", "AppName": "spider", "AppKey": "123456" } ] }
builder.Services.AddLazyFileServer(builder.Configuration); app.UseSimpleFileServer("/");
经过简单的配置,一个上传服务已经搭建好了。本例中通过http://localhost:5001/,header设置appid,appkey即可上传。
3.自定义路径计算方式
- 定义IFilePathCalculator实现类
public class CustomFilePathCalculator : IFilePathCalculator { public string Name { get { return "custom"; } } /// <summary> /// 直接返回文件名 /// </summary> /// <param name="input"></param> /// <returns></returns> public string Calculate(FilePathCalculatorInput input) { return input.FileName; } }
- 注入服务
builder.Services.AddLazyFileServer(builder.Configuration).AddFilePathCalculator<CustomFilePathCalculator>();
- 修改配置
"FilePathCalculatorType": "custom"
4.自定义应用查找器
默认从AppSetting查找.
- 定义CustomAppFinder实现类
public class CustomAppFinder : IAppFinder { private static List<AppInfo> Apps = new List<AppInfo>() { new AppInfo{ AppId = "1", AppKey = "654321", AppName = "spider" } }; public Task<AppInfo> FindAsync(string appid) { return Task.FromResult(Apps.FirstOrDefault(e => e.AppId == appid)); } }
- 替换默认服务
builder.Services.AddLazyFileServer(builder.Configuration).ReplaceAppFinder<CustomAppFinder>();
客户端
前端应用理论上可以直接调用服务的上传接口,但这样会将appid,AppKey裸露在外界。因此需要各应用包裹下,提供一个上传端点。
1. 安装
Install-Package Lazy.FileServer.Client -Version 1.0.1
2. 示例
using Microsoft.AspNetCore.Mvc; namespace Lazy.FileServer.Client.WebApi.Host.Controllers { [ApiController] public class FileController : ControllerBase { private readonly ILogger<FileController> _logger; private IHttpContextAccessor _httpContextAccessor; public FileController(ILogger<FileController> logger, IHttpContextAccessor httpContextAccessor) { _logger = logger; _httpContextAccessor = httpContextAccessor; } [HttpPost()] [Route("Upload")] public async Task<IEnumerable<string>> UploadAsync() { var client = new FileServerClient("http://localhost:5001", "1", "123456"); return await client.UploadAsync(_httpContextAccessor.HttpContext); } } }