{"id":6181,"date":"2022-05-17T15:01:19","date_gmt":"2022-05-17T07:01:19","guid":{"rendered":"https:\/\/www.lilichao.com\/?p=6181"},"modified":"2022-05-17T15:01:20","modified_gmt":"2022-05-17T07:01:20","slug":"fetch-api","status":"publish","type":"post","link":"https:\/\/lilichao.com\/?p=6181","title":{"rendered":"Fetch API"},"content":{"rendered":"\n

React\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u53d6\u4ee3\u4e86\u539f\u751fDOM\uff0c\u8ba9\u6211\u4eec\u64cd\u4f5c\u7f51\u9875\u7684\u65b9\u5f0f\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u3002\u4f46\u662fReact\u4e2d\u5e76\u6ca1\u6709\u4e3a\u6211\u4eec\u63d0\u4f9b\u5411\u670d\u52a1\u5668\u4e2d\u53d1\u9001\u8bf7\u6c42\u7684\u65b9\u6cd5\uff08\u56e0\u4e3a\u8fd9\u672c\u6765\u5c31\u4e0d\u662f\u5b83\u6240\u5173\u6ce8\u7684\u4e8b\u60c5\uff09\u3002\u6240\u4ee5\u5728React\u4e2d\u53d1\u9001\u8bf7\u6c42\u7684\u65b9\u5f0f\u548c\u4f20\u7edf\u9879\u76ee\u5176\u5b9e\u662f\u4e00\u81f4\u7684\uff0c\u65e0\u975e\u5c31\u662f\u4f7f\u7528\u6d4f\u89c8\u5668\u81ea\u5e26\u7684Ajax\u3001Fetch\u6216\u8005\u662f\u7c7b\u4f3c\u4e8eAxios\u7684\u7b2c\u4e09\u65b9\u6846\u67b6\u3002\u8fd9\u4e5f\u5c31\u610f\u5473\u7740\u5728React\u4e2d\u53d1\u9001\u8bf7\u6c42\u7684\u65b9\u5f0f\u5176\u5b9e\u662f\u975e\u5e38\u7075\u6d3b\u7684\uff0c\u4f60\u5b8c\u5168\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u4e60\u60ef\u9009\u62e9\u4e00\u79cd\u4f60\u559c\u6b22\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n

Fetch API<\/h2>\n\n\n\n

Fetch\u662f\u6d4f\u89c8\u5668\u4e2d\u81ea\u5e26\u7684\u4e00\u79cd\u53d1\u9001\u8bf7\u6c42\u7684\u65b9\u5f0f\uff0c\u5b83\u662fAjax\u7684\u5347\u7ea7\u7248\uff0c\u76f8\u8f83\u4e8eAjax\u6765\u8bf4\u5b83\u4f7f\u7528\u8d77\u6765\u66f4\u52a0\u65b9\u4fbf\uff0c\u4ee3\u7801\u4e5f\u66f4\u52a0\u7b80\u6d01\u6e05\u6670\u3002<\/p>\n\n\n\n

\u53d1\u9001get\u8bf7\u6c42<\/p>\n\n\n\n

fetch(resource)<\/code><\/pre>\n\n\n\n
\u4f7f\u7528fetch\u53d1\u9001get\u8bf7\u6c42\u65f6\uff0c\u53ea\u9700\u8981\u5c06\u8bf7\u6c42\u5730\u5740\u4f5c\u4e3a\u53c2\u6570\u5373\u53ef\u3002<\/p>\n\n\n\n
fetch<\/em>('http:\/\/localhost:1337\/api\/students')<\/pre>\n\n\n\n
API\u5730\u5740\u662f\u6211\u4eec\u524d\u8fb9\u8bfe\u7a0b\u4e2d\u901a\u8fc7Strapi\u5b9a\u4e49\u7684\u5730\u5740\u3002\u548c\u4f20\u7edf\u7684Ajax\u4e0d\u540c\uff0cfetch\u8fd4\u56de\u7684\u662f\u4e00\u4e2apromise\uff0c\u6240\u4ee5\u6211\u4eec\u4e0d\u9700\u8981\u518d\u53bb\u76d1\u542c\u54cd\u5e94\u8fd4\u56de\u7684\u4e8b\u4ef6\u53ea\u9700\u5728fetch\u540e\u8c03\u7528then()<\/code>\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n
fetch<\/em>('http:\/\/localhost:1337\/api\/students')\n    .then(res => \/\/res\u662f\u54cd\u5e94\u4fe1\u606f )<\/pre>\n\n\n\n
\u5f53\u8bf7\u6c42\u53d1\u9001\u6210\u529f\u540e\uff0cfetch\u4f1a\u81ea\u52a8\u8c03\u7528then\u4e2d\u7684\u56de\u8c03\u51fd\u6570\uff0c\u56de\u8c03\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u5c31\u662f\u670d\u52a1\u5668\u8fd4\u56de\u7684\u54cd\u5e94\u4fe1\u606f\uff0c\u8fd9\u91cc\u6211\u4eec\u7528res\u8868\u793a\uff08response\u7684\u7b80\u5199\uff09\u3002res\u4e2d\u5305\u542b\u4e86\u5168\u90e8\u7684\u54cd\u5e94\u4fe1\u606f\uff0c\u8fd9\u4e9b\u4fe1\u606f\u4e2d\u6211\u4eec\u6bd4\u8f83\u5173\u5fc3\u7684\u662f\u670d\u52a1\u5668\u8fd4\u56de\u7684json\u6570\u636e\uff0c\u6240\u4ee5\u6211\u4eec\u8fd8\u9700\u8c03\u7528res\u7684json()<\/code>\u65b9\u6cd5\u6765\u83b7\u53d6res\u4e2d\u7684json\u6570\u636e\uff0cjson()<\/code>\u65b9\u6cd5\u540c\u6837\u4f1a\u8fd4\u56de\u4e00\u4e2apromise\uff0c\u6240\u4ee5\u6211\u4eec\u8fd8\u9700\u8981\u63a5\u7740then\uff0c\u50cf\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n
fetch<\/em>('http:\/\/localhost:1337\/api\/students')\n    .then(res => res.json())\n    .then(data => console.log(data))<\/pre>\n\n\n\n
\u7b2c\u4e8c\u4e2athen\u4e2d\u7684data\uff0c\u4fbf\u662f\u4eceres\u4e2d\u89e3\u6790\u5230\u7684\u6570\u636e\uff0c\u4e5f\u5c31\u662f\u670d\u52a1\u5668\u6240\u53d1\u9001\u7684\u6570\u636e\uff0c\u5b83\u5df2\u7ecf\u76f4\u63a5\u8f6c\u6362\u4e3a\u4e86JS\u5bf9\u8c61\uff0c\u6570\u636e\u7ed3\u6784\u548c\u670d\u52a1\u5668\u4e2d\u8fd4\u56de\u7684\u6570\u636e\u4e00\u81f4\uff1a<\/p>\n\n\n\n
{\r\n    \"data\": [\r\n        {\r\n            \"id\": 1,\r\n            \"attributes\": {\r\n                \"name\": \"\u5b59\u609f\u7a7a\",\r\n                \"gender\": \"\u7537\",\r\n                \"age\": 18,\r\n                \"address\": \"\u82b1\u679c\u5c71\",\r\n                \"createdAt\": \"2022-05-16T10:05:10.538Z\",\r\n                \"updatedAt\": \"2022-05-16T10:05:34.201Z\"\r\n            }\r\n        },\r\n        {\r\n            \"id\": 2,\r\n            \"attributes\": {\r\n                \"name\": \"\u732a\u516b\u6212\",\r\n                \"gender\": \"\u7537\",\r\n                \"age\": 28,\r\n                \"address\": \"\u9ad8\u8001\u5e84\",\r\n                \"createdAt\": \"2022-05-16T10:07:01.140Z\",\r\n                \"updatedAt\": \"2022-05-16T10:07:01.140Z\"\r\n            }\r\n        },\r\n        {\r\n            \"id\": 3,\r\n            \"attributes\": {\r\n                \"name\": \"\u6c99\u548c\u5c1a\",\r\n                \"gender\": \"\u7537\",\r\n                \"age\": 38,\r\n                \"address\": \"\u6d41\u6c99\u6cb3\",\r\n                \"createdAt\": \"2022-05-16T10:15:51.303Z\",\r\n                \"updatedAt\": \"2022-05-16T10:15:51.303Z\"\r\n            }\r\n        }\r\n    ],\r\n    \"meta\": {\r\n        \"pagination\": {\r\n            \"page\": 1,\r\n            \"pageSize\": 25,\r\n            \"pageCount\": 1,\r\n            \"total\": 3\r\n        }\r\n    }\r\n}<\/code><\/pre>\n\n\n\n
\u4ece\u670d\u52a1\u5668\u4e2d\u52a0\u8f7d\u5230\u7684\u6570\u636e\u6bd4\u8f83\u591a\uff0c\u6211\u4eec\u4f7f\u7528\u65f6\u8fd8\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u8c03\u6574\uff0c\u4f7f\u5176\u53d8\u6210\u6211\u4eec\u9700\u8981\u7684\u6570\u636e\u7ed3\u6784\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5728\u6700\u540e\u8c03\u7528catch\uff0c\u5e76\u5728catch\u5904\u7406\u5f02\u5e38\uff1a<\/p>\n\n\n\n
        fetch('http:\/\/localhost:1337\/api\/students')\r\n            .then(\r\n                res => res.json())\r\n            .then(\r\n                data => {\r\n                    const formatData = data.data.map(item => ({\r\n                        id:item.id,\r\n                        name:item.attributes.name,\r\n                        age:item.attributes.age,\r\n                        gender:item.attributes.gender,\r\n                        address:item.attributes.address,\r\n                    }));\r\n\r\n                    console.log(formatData);\r\n                })\r\n            .catch(err => console.log(err));<\/code><\/pre>\n\n\n\n
\u5176\u4ed6\u7c7b\u578b\u8bf7\u6c42<\/h2>\n\n\n\n
\u53d1\u9001\u5176\u4ed6\u7c7b\u578b\u8bf7\u6c42\u65f6\uff0c\u9664\u4e86\u8981\u6307\u5b9a\u8bf7\u6c42\u5730\u5740\u5916\uff0c\u8fd8\u8981\u4f20\u9012\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u8bbe\u7f6e\u8bf7\u6c42\u7684\u4fe1\u606f\uff1a<\/p>\n\n\n\n
fetch(resource, init)<\/code><\/pre>\n\n\n\n
init\u5bf9\u8c61\u5c31\u662f\u7528\u6765\u8bbe\u7f6e\u8bf7\u6c42\u4fe1\u606f\u7684\uff0c\u5e38\u7528\u7684\u5c5e\u6027\u6709method\u7528\u6765\u8bbe\u7f6e\u8bf7\u6c42\u65b9\u6cd5\uff0cheaders\u7528\u6765\u8bbe\u7f6e\u8bf7\u6c42\u5934\uff0cbody\u7528\u6765\u8bbe\u7f6e\u8bf7\u6c42\u4f53\u3002<\/p>\n\n\n\n
\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
\u53d1\u9001delete\u8bf7\u6c42\uff1a<\/p>\n\n\n\n
fetch<\/em>('http:\/\/localhost:1337\/api\/students\/3',{
        method:'delete'
    })
        .then(
            res => res.json())
        .then(
            data => console.log(data))
        .catch(err => console.log(err));
};<\/pre>\n\n\n\n
\u53d1\u9001post\u8bf7\u6c42\uff1a<\/p>\n\n\n\n
fetch<\/em>('http:\/\/localhost:1337\/api\/students', {
    method: 'post',
    headers: {
        \"Content-Type\": 'application\/json'
    },
    body: JSON.stringify({
        data: {
            name: '\u6c99\u548c\u5c1a',
            age: 38,
            gender: '\u7537',
            address: '\u6d41\u6c99\u6cb3'
        }
    })
})
    .then(
        res => res.json())
    .then(
        data => console.log(data))
    .catch(err => console.log(err));<\/pre>\n\n\n\n
\u53d1\u9001put\u8bf7\u6c42\uff1a<\/p>\n\n\n\n
    fetch<\/em>('http:\/\/localhost:1337\/api\/students\/5', {\n        method: 'put',\n        headers: {\n            \"Content-Type\": 'application\/json'\n        },\n        body: JSON.stringify({\n            data: {\n                age: 48,\n            }\n        })\n    })\n        .then(\n            res => res.json())\n        .then(\n            data => console.log(data))\n        .catch(err => console.log(err));\n<\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
React\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u53d6\u4ee3\u4e86\u539f\u751fDOM\uff0c\u8ba9\u6211\u4eec\u64cd\u4f5c\u7f51\u9875\u7684\u65b9\u5f0f\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u3002\u4f46\u662fReact\u4e2d\u5e76\u6ca1\u6709\u4e3a\u6211\u4eec\u63d0\u4f9b\u5411\u670d […]<\/p>\n","protected":false},"author":1,"featured_media":6183,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[241,198],"tags":[259,206,200,202,205],"_links":{"self":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/6181"}],"collection":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6181"}],"version-history":[{"count":2,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/6181\/revisions"}],"predecessor-version":[{"id":6184,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/6181\/revisions\/6184"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/media\/6183"}],"wp:attachment":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}