1688按图搜索商品(拍立淘)item_search_img-按图搜索1688商品(拍立淘)API

1688按图搜索商品(拍立淘)1688图片识别商品,item_search_img-按图搜索1688商品(拍立淘)API代码示例:

1688平台提供了一系列的API接口,其中包括按图搜索商品(拍立淘)功能。通过这些API接口,开发者可以集成1688的商品搜索功能到自己的应用或网站中,为用户提供更加便捷的商品搜索服务。

具体来说,开发者可以通过以下步骤使用1688的按图搜索商品(拍立淘)API:

  1. 获取API密钥:在1688开放平台上注册账号并创建应用,获得API密钥
  2. 调用API接口:使用获得的API密钥,通过HTTP请求调用相应的API接口。
  3. 发送图片数据:在请求中附带需要搜索的图片数据,可以是Base64编码的图片字符串、图片URL等格式。
  4. 接收搜索结果:服务器会返回搜索结果,包括商品详情、价格等信息。开发者可以根据自己的需求对结果进行处理和展示。

需要注意的是,使用1688的API接口需要遵守相应的使用规范和限制,具体细节可以参考1688开放平台的官方文档。同时,由于API接口的调用涉及到网络请求和数据传输,开发者需要考虑到网络延迟和错误处理等方面的问题,确保应用的稳定性和可用性。

item_search_img-按图搜索1688商品(拍立淘),

请求参数

请求参数:imgid=http://g-search3.alicdn.com/img/bao/uploaded/i4/O1CN01IDpcD81zHbpHs1YgT_!!2200811456689.jpg

参数说明:imgid:图片地址(使用淘宝upload_img接口上传图片,返回图片地址)
如:https://img.alicdn.com/imgextra/i3/15353738/TB2HDHAqN9YBuNjy0FfXXXIsVXa_!!15353738-0-beehive-scenes.jpg

请求示例,API接入Anzexi58

响应示例

{
	"items": {
		"real_total_results": 80,
		"error": "",
		"item": [
			{
				"title": "精英篮球袜子男短袜加厚无骨缝头毛巾底吸汗透气户外跑步毛巾运动",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/490/610/23562016094_1701667707.jpg",
				"price": "3.00",
				"sales": 1600,
				"num_iid": "634209995336",
				"turnHead": "4.4%",
				"seller_nick": "江西恒康麻业针织有限公司",
				"area": "宜春市",
				"detail_url": "https://detailp4p.1688.com/buyer/offerdetail/634209995336.html?trace_log=p4p&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.1/obj_p4pOfferExtV2&_p_isad=1&__track_scene=app_search&offerId=634209995336&type=p4p"
			},
			{
				"title": "勇士篮球比赛运动袜 成人锦纶精英篮球袜 吸汗透气 一件代发",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2018/231/872/9624278132_504216710.jpg",
				"price": "12.00",
				"sales": 4,
				"num_iid": "580998304735",
				"turnHead": "33.3%",
				"seller_nick": "深圳龙华区威町服装商行",
				"area": "广州市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=580998304735&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.2/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "依兰针织定制压力运动袜足球篮球袜莱卡stance专业运动袜定做",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2018/697/992/8785299796_1251967097.jpg",
				"price": "10.00",
				"sales": 1,
				"num_iid": "552588406258",
				"turnHead": "28.8%",
				"seller_nick": "诸暨市依兰针织有限公司",
				"area": "诸暨市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=552588406258&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.3/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "专业户外运动毛巾底篮球袜透气吸汗防滑耐摩包裹防护可定制",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2018/046/945/8853549640_866248898.jpg",
				"price": "7.70",
				"sales": 116,
				"num_iid": "569816875927",
				"turnHead": "31.3%",
				"seller_nick": "晋江沐胜服饰有限公司",
				"area": "晋江市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=569816875927&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.4/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "领途中筒足球袜男士加厚毛巾袜透气耐磨运动袜现货批发训练足球袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/948/873/16050378849_1409184180.jpg",
				"price": "6.50",
				"sales": 8,
				"num_iid": "638389370858",
				"turnHead": "16.6%",
				"seller_nick": "佛山市南海领途袜业有限公司",
				"area": "佛山市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=638389370858&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.5/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "儿童专业精英篮球袜男詹姆斯高筒球袜少年毛巾底孩子童篮球袜子",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/987/710/22796017789_1483736682.jpg",
				"price": "12.00",
				"sales": 0,
				"num_iid": "633288097525",
				"turnHead": "5.1%",
				"seller_nick": "莆田市秀屿区东庄成蹊百货商行",
				"area": "莆田市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=633288097525&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.6/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "厂家批发定制男士中长筒毛巾底运动袜吸汗透气户外篮球袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN018hjpsa1IuyUjZ1LhN_!!6000000000954-0-cib.jpg",
				"price": "7.50",
				"sales": 0,
				"num_iid": "634782849328",
				"turnHead": "35%",
				"seller_nick": "义乌市肖华日用品厂",
				"area": "金华市",
				"detail_url": "https://detailp4p.1688.com/buyer/offerdetail/634782849328.html?trace_log=p4p&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.7/obj_p4pOfferExtV2&_p_isad=1&__track_scene=app_search&offerId=634782849328&type=p4p"
			},
			{
				"title": "恒源祥儿童袜子秋冬加厚毛圈袜男童女童冬季保暖舒适拼色中筒棉袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/841/940/23432049148_1169299785.jpg",
				"price": "22.58",
				"sales": 0,
				"num_iid": "633985649183",
				"turnHead": "9.8%",
				"seller_nick": "宁陵县徘徊百货用品店",
				"area": "宁陵县",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=633985649183&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.8/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "专业精英篮球袜男23号詹姆斯高筒球袜球星24号毛巾底儿童篮球袜子",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN01oseMNa1EJBLaqkU6C_!!6000000000330-0-cib.jpg",
				"price": "13.80",
				"sales": 2,
				"num_iid": "634830426442",
				"turnHead": "7.1%",
				"seller_nick": "惠州市庄惠堂药材有限公司",
				"area": "义乌市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=634830426442&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.9/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "防滑中筒足球袜 成人儿童毛巾底神袜男女短筒 专业运动低帮训练袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/370/224/23355422073_193481671.jpg",
				"price": "13.00",
				"sales": 4,
				"num_iid": "633354011246",
				"turnHead": "13.3%",
				"seller_nick": "义乌市霓凰贸易有限公司",
				"area": "义乌市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=633354011246&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.10/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "男士袜子 运动加厚男士运动袜子专业毛巾底袜高统篮球袜运动防滑",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2019/171/382/10866283171_1699305130.jpg",
				"price": "2.09",
				"sales": 0,
				"num_iid": "638452161039",
				"turnHead": "2.4%",
				"seller_nick": "尤溪县小橘子商行",
				"area": "三明市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=638452161039&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.11/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "精英篮球袜男中筒袜秋冬加厚运动袜毛巾底精英袜机能吸汗篮球袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/387/030/19507030783_202062677.jpg",
				"price": "18.12",
				"sales": 0,
				"num_iid": "626278787885",
				"turnHead": "10.3%",
				"seller_nick": "丹阳市开发区易更强百货店",
				"area": "镇江市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=626278787885&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.12/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "厂家可定制篮球袜毛巾底运动船袜毛圈户外中短筒精英跑步袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN010a3Or31cr7TT5Rh7e_!!6000000003653-0-cib.jpg",
				"price": "5.00",
				"sales": 0,
				"num_iid": "634239572018",
				"turnHead": "35%",
				"seller_nick": "义乌市肖华日用品厂",
				"area": "金华市",
				"detail_url": "https://detailp4p.1688.com/buyer/offerdetail/634239572018.html?trace_log=p4p&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.13/obj_p4pOfferExtV2&_p_isad=1&__track_scene=app_search&offerId=634239572018&type=p4p"
			},
			{
				"title": "成人篮球精英袜中筒运动袜高帮毛巾底加厚运动袜厂家可定制OEMODM",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN01h7ocHe1eKigg5fR1q_!!6000000003853-0-cib.jpg",
				"price": "7.00",
				"sales": 847,
				"num_iid": "634342120328",
				"turnHead": "17.5%",
				"seller_nick": "石竹(佛山)网络科技有限公司",
				"area": "佛山市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=634342120328&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.14/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "专业运动护小腿透气压力袜男女足球篮球登山骑行护膝护具可定制",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/324/624/18909426423_1635386330.jpg",
				"price": "6.67",
				"sales": 4,
				"num_iid": "624074777563",
				"turnHead": "9.8%",
				"seller_nick": "广东力奥创新科技有限公司",
				"area": "东莞市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=624074777563&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.15/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "篮球袜精英袜加厚高筒袜子男袜毛巾底运动袜毛巾袜儿童中筒长筒袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN01zD842C29LrmLsgOoj_!!2209542918052-0-cib.jpg",
				"price": "9.35",
				"sales": 0,
				"num_iid": "637562663525",
				"turnHead": "9.4%",
				"seller_nick": "明光市铭航贸易商行",
				"area": "上海市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=637562663525&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.16/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "篮球袜精英袜加厚高筒袜子男袜毛巾底运动袜毛巾袜儿童中筒长筒袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/620/120/23626021026_1137453191.jpg",
				"price": "18.51",
				"sales": 0,
				"num_iid": "633561596134",
				"turnHead": "7.6%",
				"seller_nick": "明光市泰恒贸易商行",
				"area": "滁州市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=633561596134&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.17/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "篮球袜精英袜加厚高筒袜子男袜毛巾底运动袜毛巾袜儿童中筒长筒袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN01vtDTIx2AVJYoL6BoL_!!2210254998208-0-cib.jpg",
				"price": "9.26",
				"sales": 0,
				"num_iid": "636051482662",
				"turnHead": "0%",
				"seller_nick": "义乌市蜜英电子商务商行",
				"area": "金华市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=636051482662&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.18/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "R-BAO薄款地板袜室内蹦床袜防打滑男士女士蹦床袜子",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN017p2zRJ2CbO2b08QJe_!!2582008492-0-cib.jpg",
				"price": "4.00",
				"sales": 0,
				"num_iid": "634914672296",
				"turnHead": "27.2%",
				"seller_nick": "晋江市青阳荣豹针织厂",
				"area": "晋江市",
				"detail_url": "https://detailp4p.1688.com/buyer/offerdetail/634914672296.html?trace_log=p4p&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.19/obj_p4pOfferExtV2&_p_isad=1&__track_scene=app_search&offerId=634914672296&type=p4p"
			},
			{
				"title": "篮球袜精英袜加厚高筒袜子男袜毛巾底运动袜毛巾袜儿童中筒长筒袜",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/O1CN01nqf8ng20sXUmpjJHr_!!2209550766905-0-cib.jpg",
				"price": "9.98",
				"sales": 0,
				"num_iid": "639231979488",
				"turnHead": "7.5%",
				"seller_nick": "明光市跃鸿贸易商行",
				"area": "滁州市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=639231979488&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.20/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "精英篮球袜男中高筒夏季防滑跑步袜足球袜专业比赛球袜中筒袜544#",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/089/386/19620683980_1986423579.jpg",
				"price": "6.50",
				"sales": 0,
				"num_iid": "625314103608",
				"turnHead": "21%",
				"seller_nick": "广州劲动体育用品有限公司",
				"area": "广州市",
				"detail_url": "http://detail.m.1688.com/page/index.html?offerId=625314103608&sortType=&pageId=&abBizDataType=cbuOffer&trace_log=normal&traceId=bd52b859fb37482fa782f783fdf4a277&spm=a262eq.8850311.1688img_search.21/obj_normalOfferExtV2&__track_scene=app_search&type=normal"
			},
			{
				"title": "男士袜子长筒运动袜防臭白色高筒秋冬季中厚纯棉青少年篮球袜中筒",
				"pic_url": "https://cbu01.alicdn.com/img/ibank/2020/367/004/15118400763_258113609.jpg",
				"price": "31.88",
				"sales": 0,
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<think>我们正在实现前端功能页面,主要分为以下几个步骤: 1. 图像采集:通过摄像头或相册获取图片 2. 图像处理:对图片进行压缩、裁剪等处理 3. 发送请求:将处理后的图片发送到后端进行识别 4. 展示结果:将后端返回的商品列表展示在页面上 根据引用[1]我们知道,功能的核心是用户上传一张图片,然后系统识别并返回相似商品列表。 同时,我们可以参考引用[3]中提到的浮动框功能,在用户操作过程中给予提示;引用[5]中的页面截图功能可能用于生成分享图片。 具体实现步骤: 一、页面布局 我们可以设计一个简单的页面,包含以下元素: - 一个按钮用于打开相机 - 一个按钮用于选择相册图片 - 一个区域用于显示摄或选择的图片 - 一个区域用于显示识别结果(商品列表) 二、图像采集 1. 使用`<input type="file">`让用户选择图片文件 2. 或者使用`navigator.mediaDevices.getUserMedia()`调用摄像头实时照 三、图像处理 1. 使用Canvas对图片进行压缩和裁剪(如固定为300x300) 2. 将图片转换为Base64或Blob格式,以便上传 四、发送请求 1. 使用Fetch API图片数据发送到后端接口 2. 等待后端返回商品列表数据 五、展示结果 1. 将返回的商品列表以网格形式展示 2. 每个商品包括图片、标题、价格等信息 六、附加功能 1. 使用浮动框(引用[3])在用户操作时给出提示 2. 使用截图功能(引用[5])让用户分享识别结果 下面我们分别实现这些步骤: 1. 页面布局(HTML部分): ```html <!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title></title> <style> /* 样式省略,可根据需要设计 */ </style> </head> <body> <div class="container"> <h1></h1> <div class="camera-control"> <button id="cameraButton">打开相机</button> <button id="uploadButton">选择图片</button> </div> <div class="preview-area"> <video id="video" autoplay playsinline style="display:none;"></video> <canvas id="canvas" style="display:none;"></canvas> <img id="previewImage" src="" alt="预览" style="display:none; max-width:300px;"/> </div> <div class="result-area" id="resultArea"> <!-- 商品列表将在这里展示 --> </div> </div> <!-- 引入jQuery(如果需要)和我们的脚本 --> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script src="main.js"></script> </body> </html> ``` 2. JavaScript逻辑(main.js): ```javascript // 获取DOM元素 const cameraButton = document.getElementById('cameraButton'); const uploadButton = document.getElementById('uploadButton'); const video = document.getElementById('video'); const canvas = document.getElementById('canvas'); const previewImage = document.getElementById('previewImage'); const resultArea = document.getElementById('resultArea'); // 打开相机 cameraButton.addEventListener('click', async () => { try { const stream = await navigator.mediaDevices.getUserMedia({ video: true }); video.style.display = 'block'; video.srcObject = stream; } catch (err) { console.error("无法打开相机: ", err); alert('无法打开相机,请确保已授予相机权限'); } }); // 照 function takePhoto() { const context = canvas.getContext('2d'); canvas.width = video.videoWidth; canvas.height = video.videoHeight; context.drawImage(video, 0, 0, canvas.width, canvas.height); // 显示照结果 const dataUrl = canvas.toDataURL('image/jpeg'); previewImage.src = dataUrl; previewImage.style.display = 'block'; // 停止视频流 video.srcObject.getTracks().forEach(track => track.stop()); video.style.display = 'none'; // 处理图片并上传 processImage(dataUrl); } // 选择图片上传 uploadButton.addEventListener('click', () => { const input = document.createElement('input'); input.type = 'file'; input.accept = 'image/*'; input.onchange = (e) => { const file = e.target.files[0]; const reader = new FileReader(); reader.onload = (event) => { previewImage.src = event.target.result; previewImage.style.display = 'block'; processImage(event.target.result); }; reader.readAsDataURL(file); }; input.click(); }); // 图片处理(压缩等) function processImage(dataUrl) { // 创建新的Canvas进行压缩 const img = new Image(); img.onload = () => { const compressCanvas = document.createElement('canvas'); const ctx = compressCanvas.getContext('2d'); // 设置压缩后尺寸(例如300x300) const maxSize = 300; let width = img.width; let height = img.height; if (width > height) { if (width > maxSize) { height *= maxSize / width; width = maxSize; } } else { if (height > maxSize) { width *= maxSize / height; height = maxSize; } } compressCanvas.width = width; compressCanvas.height = height; ctx.drawImage(img, 0, 0, width, height); // 获取压缩后的Base64(质量0.8) const compressedData = compressCanvas.toDataURL('image/jpeg', 0.8); // 上传图片 uploadImage(compressedData); }; img.src = dataUrl; } // 上传图片到后端 function uploadImage(imageData) { // 显示加载中 resultArea.innerHTML = '加载中...'; // 将Base64转换为Blob(减少传输大小) const blob = dataURLtoBlob(imageData); // 使用FormData发送 const formData = new FormData(); formData.append('image', blob, 'image.jpg'); // 发送到后端(假设接口为 /api/search) fetch('/api/search', { method: 'POST', body: formData }) .then(response => response.json()) .then(data => { // 展示结果 displayResults(data); }) .catch(error => { console.error('上传失败:', error); resultArea.innerHTML = '识别失败,请重试'; }); } // 将Base64转换为Blob function dataURLtoBlob(dataurl) { const arr = dataurl.split(','); const mime = arr[0].match(/:(.*?);/)[1]; const bstr = atob(arr[1]); let n = bstr.length; const u8arr = new Uint8Array(n); while (n--) { u8arr[n] = bstr.charCodeAt(n); } return new Blob([u8arr], { type: mime }); } // 展示结果 function displayResults(products) { if (!products || products.length === 0) { resultArea.innerHTML = '未找到相似商品'; return; } let html = '<div class="product-list">'; products.forEach(product => { html += ` <div class="product-item"> <img src="${product.image}" alt="${product.title}"> <h3>${product.title}</h3> <p>价格: ${product.price}</p> </div> `; }); html += '</div>'; resultArea.innerHTML = html; } // 在视频区域点击照(简单实现:在视频显示后,点击视频区域照) video.addEventListener('click', takePhoto); ``` 3. 注意事项: - 跨域问题:如果前端和后端不在同一个域名,需要处理CORS。 - 安全性:用户图片上传需注意隐私,传输过程使用HTTPS。 - 性能:图片压缩避免过大,减少网络传输时间。 4. 附加功能实现: - 浮动提示框:参考引用[3],可以在用户操作时显示提示信息,例如:“正在识别中...”。 - 截图分享:使用引用[5]的html2canvas库,将结果区域生成图片供用户保存分享。 关于截图分享功能,可以添加一个分享按钮: ```html <button id="shareButton" style="display:none;">分享结果</button> ``` 在识别结果显示后显示该按钮,然后: ```javascript document.getElementById('shareButton').addEventListener('click', function() { html2canvas(resultArea).then(canvas => { // 将canvas转换为图片并提示用户保存 const imgData = canvas.toDataURL('image/png'); // 创建一个临时链接供用户下载 const link = document.createElement('a'); link.download = '结果.png'; link.href = imgData; link.click(); }); }); ``` 注意:在展示结果后显示分享按钮,并在上传前隐藏。 以上是一个基本的前端功能页面实现。实际项目中,后端接口需要能够接收图片并进行图像识别,返回相似商品列表。 根据引用[1],的核心是图像识别服务,这部分通常由后端完成,前端主要负责图片采集、处理和展示。 最后,我们还可以考虑: - 使用Web Worker在后台线程进行图像压缩,避免阻塞UI(引用中提到的性能优化)。 - 使用WebGL(如通过TensorFlow.js)在客户端进行一些初步的图像处理,但注意移动端性能。 希望这个实现方案对您有帮助! 如果遇到具体问题(如相机调用失败、图片上传格式等),可以进一步调整。 引用说明: [^1]: 功能的核心是图像识别和商品匹配。 [^3]: 使用浮动框提示用户操作状态。 [^5]: 使用html2canvas实现结果分享功能。</think>### 前端功能页面实现方法 #### 一、核心实现步骤 1. **图像采集模块** ```html <!-- 相机控制区域 --> <div class="camera-container"> <video id="cameraFeed" autoplay playsinline></video> <canvas id="canvas" style="display:none"></canvas> <button id="captureBtn">照识别</button> <button id="uploadBtn">上传图片</button> <input type="file" id="fileInput" accept="image/*" style="display:none"> </div> ``` ```javascript // 调用摄像头 async function initCamera() { const video = document.getElementById('cameraFeed'); try { const stream = await navigator.mediaDevices.getUserMedia({ video: true }); video.srcObject = stream; } catch (err) { console.error("摄像头访问失败:", err); } } // 照功能 document.getElementById('captureBtn').addEventListener('click', () => { const canvas = document.getElementById('canvas'); const video = document.getElementById('cameraFeed'); canvas.width = video.videoWidth; canvas.height = video.videoHeight; canvas.getContext('2d').drawImage(video, 0, 0); processImage(canvas.toDataURL('image/jpeg')); }); // 图片上传 document.getElementById('uploadBtn').addEventListener('click', () => { document.getElementById('fileInput').click(); }); document.getElementById('fileInput').addEventListener('change', (e) => { const file = e.target.files[0]; const reader = new FileReader(); reader.onload = (event) => processImage(event.target.result); reader.readAsDataURL(file); }); ``` 2. **图像处理与压缩** ```javascript function processImage(dataUrl) { const img = new Image(); img.onload = () => { const canvas = document.createElement('canvas'); const ctx = canvas.getContext('2d'); // 压缩至300x300(标准尺寸) const MAX_SIZE = 300; let width = img.width; let height = img.height; if (width > height) { if (width > MAX_SIZE) { height *= MAX_SIZE / width; width = MAX_SIZE; } } else { if (height > MAX_SIZE) { width *= MAX_SIZE / height; height = MAX_SIZE; } } canvas.width = width; canvas.height = height; ctx.drawImage(img, 0, 0, width, height); // 获取压缩后的图像(质量80%) const compressedData = canvas.toDataURL('image/jpeg', 0.8); sendToServer(compressedData); }; img.src = dataUrl; } ``` 3. **数据发送与结果展示** ```javascript async function sendToServer(imageData) { // 显示加载状态(参考引用[3]的浮动提示) showFloatingTip("正在识别商品..."); try { const response = await fetch('https://api.example.com/search', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ image: imageData.split(',')[1] }) // 去掉Base64前缀 }); const results = await response.json(); displayResults(results); } catch (error) { showFloatingTip("识别失败,请重试"); } } function displayResults(products) { const resultsContainer = document.getElementById('results'); resultsContainer.innerHTML = ''; products.forEach(product => { resultsContainer.innerHTML += ` <div class="product-card"> <img src="${product.image}" alt="${product.name}"> <h3>${product.name}</h3> <p>¥${product.price}</p> </div> `; }); } // 浮动提示实现(参考引用[3]) function showFloatingTip(message) { const tip = document.createElement('div'); tip.className = 'floating-tip'; tip.textContent = message; document.body.appendChild(tip); setTimeout(() => { tip.remove(); }, 3000); } ``` #### 二、关键技术实现 1. **性能优化方案** - **Web Workers图像压缩**: ```javascript // 在worker.js中 self.onmessage = (e) => { const { dataUrl, maxSize } = e.data; const img = new Image(); img.onload = () => { // ...压缩逻辑同前... self.postMessage(compressedData); }; img.src = dataUrl; }; // 主线程调用 const worker = new Worker('worker.js'); worker.postMessage({ dataUrl, maxSize: 300 }); worker.onmessage = (e) => sendToServer(e.data); ``` 2. **用户体验增强** - **实时取景框**:使用CSS实现九宫格取景框 ```css .camera-container { position: relative; } .viewfinder { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 70%; height: 70%; border: 2px solid #ff5000; background: transparent; } ``` - **结果瀑布流布局**: ```css .results-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; } ``` #### 三、完整页面结构 ```html <!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title></title> <style> /* 基础样式 */ .camera-container { position: relative; width: 100%; max-width: 500px; margin: 0 auto; } #cameraFeed { width: 100%; background: #000; } .controls { display: flex; justify-content: center; gap: 20px; margin: 15px 0; } button { padding: 10px 20px; background: #ff5000; color: white; border: none; border-radius: 4px; } /* 浮动提示(参考引用[3]) */ .floating-tip { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,0.7); color: white; padding: 10px 20px; border-radius: 20px; z-index: 1000; } /* 结果展示 */ .results-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 15px; padding: 20px; } .product-card img { width: 100%; border-radius: 8px; } </style> </head> <body> <div class="camera-container"> <video id="cameraFeed" autoplay playsinline></video> <div class="viewfinder"></div> <canvas id="canvas" style="display:none"></canvas> </div> <div class="controls"> <button id="captureBtn">照识别</button> <button id="uploadBtn">上传图片</button> <input type="file" id="fileInput" accept="image/*" style="display:none"> </div> <div class="results-container" id="results"></div> <script> // 包含上述所有JavaScript功能 </script> </body> </html> ``` #### 四、关键注意事项 1. **安全与权限**: - 使用`navigator.permissions.query({name:'camera'})`检查摄像头权限 - 上传图片时验证MIME类型防止恶意文件 2. **兼容性处理**: ```javascript // 旧版浏览器兼容 if (!navigator.mediaDevices?.getUserMedia) { alert("您的浏览器不支持摄像头功能,请使用Chrome/Firefox等现代浏览器"); } ``` 3. **网络优化**: - 先发送低分辨率图片获取快速响应 - 使用WebP格式替代JPEG(支持情况下) 4. **错误处理**: ```javascript function handleCameraError(err) { console.error("摄像头错误:", err.name); switch(err.name) { case 'NotAllowedError': showFloatingTip("请允许摄像头访问权限"); break; case 'NotFoundError': showFloatingTip("未找到可用摄像头"); break; default: showFloatingTip("摄像头不可用"); } } ``` #### 五、扩展功能建议 1. **历史记录功能**(参考引用[4]): ```javascript function saveHistory(product) { const history = JSON.parse(localStorage.getItem('pailitao') || '[]'); history.unshift({ id: product.id, image: product.thumbnail, timestamp: Date.now() }); localStorage.setItem('pailitao', JSON.stringify(history.slice(0, 10))); } ``` 2. **分享功能**(参考引用[2][5]): ```javascript function shareResult() { html2canvas(document.getElementById('results')).then(canvas => { canvas.toBlob(blob => { const file = new File([blob], "结果.png"); navigator.share({ files: [file] }); }); }); } ``` ---
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