必应每日壁纸API封装

简介

这个类封装了必应首页的每日壁纸查看功能，提供了查看、保存壁纸的方法，最大支持查看近8天的壁纸

使用方法

async Task Main()
{try{var bing = BingWallpaperAPI.CreateInstance(8); //初始化，参数8表示一共会加载8张图片var task = await bing.Current();task.Wallpaper.Dump();  //加载壁纸Console.WriteLine("日期\t" + task.EndDate);Console.WriteLine("标题\t" + task.Title);  //加载相关信息Console.WriteLine("版权\t" + task.Copyright);Console.WriteLine("链接\t" + task.CopyrightLink);if (await bing.SaveCurrentWallpaper(@"D:\bing.jpg"))	//保存当前的壁纸{Console.WriteLine("保存成功");};var task1 = await bing.Next();  //加载下一张壁纸task1.Wallpaper.Dump(); //打印壁纸var task2 = await bing.Previous();  //加载上一张壁纸task2.Wallpaper.Dump(); //打印壁纸}catch (Exception ex){Console.WriteLine(ex.Message);}
}

效果预览

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API封装

点击查看代码

using System;
using System.Diagnostics;
using System.Drawing.Imaging;
using System.Linq;
using System.Net.Http;
using System.Text.Json;
using System.Threading.Tasks;/// <summary>/// 加载Bing壁纸，单例，使用CreateInstance方法创建类的实例/// </summary>public sealed class BingWallpaperAPI{private static BingWallpaperAPI _instance = null;private static readonly object _padlock = new Object();/// <summary>/// 创建类的实例/// </summary>/// <param name="imgnums">壁纸的张数，可以是1-8之间的数</param>/// <returns></returns>public static BingWallpaperAPI CreateInstance(byte imgnums = 3){if (_instance is null){lock (_padlock){if (_instance is null) _instance = new BingWallpaperAPI(imgnums);}}return _instance;}private BingWallpaperAPI(byte imgnums){if (imgnums > 8 || imgnums <= 0){_imgnums = 3;Debug.WriteLine($"仅支持1-8张图片，你输入的{imgnums}被重置为3");}else { _imgnums = imgnums; }GetWallpaperLink();}/// <summary>内置索引</summary>private int _index = -1;/// <summary>/// 加载Bing壁纸的数量，默认为3/// </summary>private static byte _imgnums;private BingApiModel _bingApiModel;/// <summary>/// 加载壁纸的JSON格式文件，文件中包含了壁纸的下载地址等关键信息/// </summary>/// <exception cref="Exception"></exception>private void GetWallpaperLink(){HttpClient client = new HttpClient();for (int i = 0; i < 3; i++) //这个步骤会尝试3次{try{var res = client.GetAsync($"https://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n={_imgnums}&mkt=zh-CN").Result;//参数n:1-8 返回请求数量，目前最多一次获取8张//参数format:js/xml//参数idx:请求图片截止天数 0 今天;1 截止至昨天，类推（目前最多获取到7天前的图片）//参数mkt:地区var json = res.Content.ReadAsStringAsync().Result;BingApiModel bingApiModel = new BingApiModel();_bingApiModel = JsonSerializer.Deserialize<BingApiModel>(json);ImageCount = _bingApiModel.images.Count();if (ImageCount == _imgnums){break;  //加载成功时直接终止循环}}catch (Exception ex){if (i == 2) { throw ex; } else Console.WriteLine(ex.Message);}}}/// <summary>/// 根据JSON数据下载壁纸/// </summary>/// <param name="index">_bingApiModel索引</param>/// <returns></returns>/// <exception cref="Exception"></exception>private async Task<BingWallpaper> GetWallpaper(int index){try{using (HttpClient client = new HttpClient()){var element = _bingApiModel.images[index];var res = await client.GetAsync("https://cn.bing.com" + element.url);//这个URL中的第一个1920x1080改成UHD是4kvar imgStream = await res.Content.ReadAsStreamAsync();return (new BingWallpaper(){Wallpaper = System.Drawing.Image.FromStream(imgStream),Title = element.title,Copyright = element.copyright,CopyrightLink = element.copyrightlink,EndDate = element.enddate,});}}catch (Exception ex){throw ex;}}/// <summary>/// 加载JSON数据包含的URL数量/// </summary>public int ImageCount { get;private set; }/// <summary>/// 下一张壁纸/// </summary>/// <returns></returns>        /// <exception cref="Exception"></exception>public async Task<BingWallpaper> Next(){if (ImageCount == 0){return null;}_index++;if (_index >= ImageCount)   //重置索引{_index = 0;}return await GetWallpaper(_index);}/// <summary>/// 上一张壁纸/// </summary>/// <returns></returns>/// <exception cref="Exception"></exception>public async Task<BingWallpaper> Previous(){if (ImageCount == 0){return null;}_index--;if (_index < 0){_index = ImageCount - 1;    //重置索引}return await GetWallpaper(_index);}/// <summary>/// 保存当前的壁纸到本地/// </summary>/// <param name="path">保存的路径、含文件名（如c:\1.jpg），格式为JPEG</param>/// <returns>保存是否成功</returns>/// <exception cref="Exception"></exception>public async Task<bool> SaveCurrentWallpaper(string path){try{var task = await Current();task.Wallpaper.Save(path, ImageFormat.Jpeg);return true;}catch (Exception ex){throw ex;}}/// <summary>/// 当前壁纸/// </summary>/// <returns></returns>/// <exception cref="Exception"></exception>public async Task<BingWallpaper> Current(){if (ImageCount == 0){return null;}if (_index == -1){_index = 0;}return await GetWallpaper(_index);}}/// <summary>/// 用来保存壁纸信息的类模型/// </summary>public class BingWallpaper{/// <summary>壁纸</summary>public System.Drawing.Image Wallpaper { get; set; }/// <summary>标题</summary>public string Title { get; set; }/// <summary>版权</summary>public string Copyright { get; set; }/// <summary>版权链接</summary>public string CopyrightLink { get; set; }/// <summary>/// 壁纸所属日期/// </summary>public string EndDate { get; set; }}/// <summary>/// 用来解析JSON数据的类模型/// </summary>public class BingApiModel{/// <summary>/// 返回图片集合/// </summary>public Image[] images { get; set; }}public class Image{/// <summary>/// 每日壁纸的日期/// </summary>public string enddate { get; set; }/// <summary>/// 壁纸的地址/// </summary>public string url { get; set; }/// <summary>壁纸的简述、拍摄地址(摄影人)</summary>public string copyright { get; set; }/// <summary>壁纸相关搜索链接</summary>public string copyrightlink { get; set; }/// <summary>壁纸的标题</summary>public string title { get; set; }}

原创声明

作者：落水的月亮
出处：博客园
转载：可以转载，转载必须注明出处。必须在文章中给出原文连接。

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