GET和POST方式请求API接口数据返回

区别

GET在浏览器回退时是无害的，而POST会再次提交请求。

GET产生的URL地址可以被Bookmark，而POST不可以。

GET请求会被浏览器主动cache，而POST不会，除非手动设置。

GET请求只能进行url编码，而POST支持多种编码方式。

GET请求参数会被完整保留在浏览器历史记录里，而POST中的参数不会被保留。

GET请求在URL中传送的参数是有长度限制的，而POST么有。

对参数的数据类型，GET只接受ASCII字符，而POST没有限制。

GET比POST更不安全，因为参数直接暴露在URL上，所以不能用来传递敏感信息。

GET参数通过URL传递，POST放在Request body中。

特别：

GET和POST还有一个重大区别，简单的说：

GET产生一个TCP数据包；POST产生两个TCP数据包。

长的说：

对于GET方式的请求，浏览器会把http header和data一并发送出去，服务器响应200（返回数据）；

而对于POST，浏览器先发送header，服务器响应100 continue，浏览器再发送data，服务器响应200 ok（返回数据）。

但是：

1. GET与POST都有自己的语义，不能随便混用。

2. 据研究，在网络环境好的情况下，发一次包的时间和发两次包的时间差别基本可以无视。而在网络环境差的情况下，两次包的TCP在验证数据包完整性上，有非常大的优点。

3. 并不是所有浏览器都会在POST中发送两次包，Firefox就只发送一次。

数据返回都是一样的，如下所示

{ "item": { "num_iid": "652874751412", "title": "北欧轻奢布艺沙发小户型简约现代客厅ins风网红款三双人订制沙发", "desc_short": "", "price": "480.00", "total_price": 0, "suggestive_price": 0, "orginal_price": "3400.00", "nick": "惜情yqq1127", "num": 1550, "min_num": 0, "detail_url": "https://item.taobao.com/item.htm?id=652874751412", "pic_url": "//img.alicdn.com/imgextra/i4/2568161054/O1CN01aYBriY1Jem9UDtt9e_!!2568161054.jpg", "brand": "#0 工厂", "brandId": null, "rootCatId": "50008164", "cid": "50020632", "crumbs": [], "created_time": "", "modified_time": "", "delist_time": "", "desc": "<div > \n <div >\n <img src=\"http://img.alicdn.com/imgextra/i3/2568161054/O1CN01LFmSOU1Jem9QOjMPb_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i3/2568161054/O1CN014vyOOT1Jem9DpHz3Y_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i1/2568161054/O1CN01B3PpsA1Jem9N8V7uf_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i2/2568161054/O1CN015JbyeY1Jem9MZshUt_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i1/2568161054/O1CN01HXSoxx1Jem9RvgzHN_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i3/2568161054/O1CN01IEultA1Jem9MdEx8R_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i3/2568161054/O1CN0176K98O1Jem9QOjE69_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i4/2568161054/O1CN013Pxp1O1Jem9RvgeTv_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i1/2568161054/O1CN01SfyZ8M1Jem9QOi1Gx_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i4/2568161054/O1CN01bb1POa1Jem9Sdgve2_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i3/2568161054/O1CN018Eo9dV1Jem9KV0y79_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i1/2568161054/O1CN01vuEofr1Jem9Nzy9xY_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i4/2568161054/O1CN01qw9sAi1Jem8wkNKpy_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i1/2568161054/O1CN01HeFhFw1Jem8rLnjBY_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i2/2568161054/O1CN01SNgjoi1Jem9QOil15_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i2/2568161054/O1CN01RXf3RA1Jem9DpHVwj_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i4/2568161054/O1CN01gZmZjt1Jem9ISThgm_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i2/2568161054/O1CN01YL0FHM1Jem9PQTjX9_!!2568161054.jpg\" />\n <img src=\"http://img.alicdn.com/imgextra/i4/2568161054/O1CN01UhsEhZ1Jem8yvJIhZ_!!2568161054.jpg\" />\n </div> \n </div><img src=\"https://www.o0b.cn/i.php?t.png&rid=gw-4.6438c7992c849&p=1778786741&k=i_key&t=1681442715\" style=\"display:none\" />", "desc_img": [ "http://img.alicdn.com/imgextra/i3/2568161054/O1CN01LFmSOU1Jem9QOjMPb_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i3/2568161054/O1CN014vyOOT1Jem9DpHz3Y_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i1/2568161054/O1CN01B3PpsA1Jem9N8V7uf_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i2/2568161054/O1CN015JbyeY1Jem9MZshUt_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i1/2568161054/O1CN01HXSoxx1Jem9RvgzHN_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i3/2568161054/O1CN01IEultA1Jem9MdEx8R_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i3/2568161054/O1CN0176K98O1Jem9QOjE69_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i4/2568161054/O1CN013Pxp1O1Jem9RvgeTv_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i1/2568161054/O1CN01SfyZ8M1Jem9QOi1Gx_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i4/2568161054/O1CN01bb1POa1Jem9Sdgve2_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i3/2568161054/O1CN018Eo9dV1Jem9KV0y79_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i1/2568161054/O1CN01vuEofr1Jem9Nzy9xY_!!2568161054.jpg", "http://img.alicdn.com/imgextra/i4/2568161054/O1CN01qw9sAi1Jem8wkNKpy_!!2568161054.jpg", 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"//img.alicdn.com/imgextra/i3/2568161054/O1CN01KUfBFL1Jem9KTTMn1_!!2568161054.jpg" } ], "item_weight": "", "item_size": "", "location": "江苏南通", "post_fee": "", "express_fee": null, "ems_fee": "", "shipping_to": "", "has_discount": "true", "video": { "url": null }, "is_virtual": "", "sample_id": "", "is_promotion": "true", "props_name": "31480:14306495906:几人坐:脚踏90*60*48cm;31480:14306495907:几人坐:双人165*95*67cm;31480:14306495908:几人坐:三人210*95*67cm;31480:14306495909:几人坐:单人100*95*67cm;31480:21480914361:几人坐:四人位240*95*67cm;31480:21480914362:几人坐:大四人320*95*76cm;31480:1387571900:几人坐:3米贵妃沙发;31480:32527954:几人坐:定制尺寸;1627207:28321:颜色分类:乳白色尺寸颜色可定制", "prop_imgs": { "prop_img": [ { "properties": "1627207:28321", "url": "//img.alicdn.com/imgextra/i1/2568161054/O1CN017GTZ4h1Jem9Qra1ap_!!2568161054.jpg" } ] }, "property_alias": "", "props": [ { "name": "品牌", "value": "#0 工厂" }, { "name": "型号", "value": "520" }, { "name": "材质", "value": "木" }, { "name": "木质材质", "value": "松木" }, { "name": "面料", "value": "绒布" }, { "name": "风格", "value": "北欧" }, { "name": "几人坐", "value": "脚踏90*60*48cm,双人165*95*67cm,三人210*95*67cm,单人100*95*67cm,四人位240*95*67cm,大四人320*95*76cm,3米贵妃沙发,定制尺寸" }, { "name": "颜色分类", "value": "乳白色" }, { "name": "填充物", "value": "海绵" }, { "name": "结构工艺", "value": "木质工艺" }, { "name": "是否可定制", "value": "是" }, { "name": "沙发组合形式", "value": "U形" }, { "name": "是否可拆洗", "value": "是" }, { "name": "适用对象", "value": "成年人" }, { "name": "是否带储物空间", "value": "否" }, { "name": "产地", "value": "上海" }, { "name": "地市", "value": "上海市" }, { "name": "区县", "value": "奉贤区" }, { "name": "是否组装", "value": "否" }, { "name": "出租车是否可运输", "value": "否" }, { "name": "填充物硬度", "value": "软" }, { "name": "款式定位", "value": "经济型" } ], "total_sold": null, "skus": { "sku": [ { "price": "480", "total_price": 0, "orginal_price": "480", "properties": "31480:14306495906;1627207:28321", "properties_name": "31480:14306495906:几人坐:脚踏90*60*48cm;1627207:28321:颜色分类:乳白色尺寸颜色可定制", "quantity": "200", "sku_id": "4881047531343" }, { "price": "1688", 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