{"id":310582,"date":"2024-05-20T21:53:54","date_gmt":"2024-05-20T13:53:54","guid":{"rendered":""},"modified":"2024-05-20T21:54:07","modified_gmt":"2024-05-20T13:54:07","slug":"ajax-%e6%80%8e%e4%b9%88%e5%86%99%e8%87%aa%e5%ae%9a%e4%b9%89-header-%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/310582.html","title":{"rendered":"ajax \u600e\u4e48\u5199\u81ea\u5b9a\u4e49 header \u53c2\u6570"},"content":{"rendered":"

\"ajax<\/p>\n

\u5728AJAX\u8bf7\u6c42\u4e2d\u5199\u81ea\u5b9a\u4e49header\u53c2\u6570\u662f\u4e00\u4e2a\u5173\u952e\u6b65\u9aa4\uff0c\u4ee5\u786e\u4fdd\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u6b63\u786e\u901a\u4fe1\u3002\u81ea\u5b9a\u4e49header\u53c2\u6570\u901a\u5e38\u7528\u4e8e\u4f20\u9012\u8ba4\u8bc1\u4fe1\u606f\u3001\u8bbe\u7f6e\u5185\u5bb9\u7c7b\u578b\u6216\u8005\u5176\u4ed6\u5fc5\u8981\u7684\u6570\u636e\u3002\u4f8b\u5982, \u8981\u5728AJAX\u8bf7\u6c42\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u540d\u4e3aX-My-Custom-Header<\/code>\u7684\u81ea\u5b9a\u4e49header\uff0c\u53ef\u4ee5\u4f7f\u7528XMLHttpRequest<\/code>\u5bf9\u8c61\u7684setRequestHeader<\/code>\u65b9\u6cd5\uff0c\u5728\u53d1\u9001\u8bf7\u6c42\u524d\u5c06\u5176\u6dfb\u52a0\u8fdb\u53bb\u3002\u8fd9\u6837\u7684\u81ea\u5b9a\u4e49header\u5bf9\u4e8e\u5904\u7406\u8de8\u6e90\u8bf7\u6c42\u3001\u53d1\u9001\u4ee4\u724c\u6216\u8005\u5f00\u53d1RESTful\u670d\u52a1\u7b49\u60c5\u51b5\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528XMLHttpRequest\u6dfb\u52a0\u81ea\u5b9a\u4e49Header<\/h3>\n<\/p>\n

\u5728\u4f20\u7edf\u7684AJAX\u8bf7\u6c42\u4e2d\u4f7f\u7528XMLHttpRequest<\/code>\u65f6\uff0c\u53ef\u4ee5\u5728\u8c03\u7528open<\/code>\u65b9\u6cd5\u540e\u3001send<\/code>\u65b9\u6cd5\u524d\u4f7f\u7528setRequestHeader<\/code>\u65b9\u6cd5\u6765\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u7684\u8bf7\u6c42\u5934\u90e8\u3002<\/p>\n<\/p>\n

\/\/ \u521b\u5efaXMLHttpRequest\u5bf9\u8c61<\/p>\n
var xhr = new XMLHttpRequest();<\/p>\n
\/\/ \u521d\u59cb\u5316\u8bf7\u6c42<\/p>\n
xhr.open('GET', 'https:\/\/api.example.com\/data', true);<\/p>\n
\/\/ \u8bbe\u7f6e\u81ea\u5b9a\u4e49header<\/p>\n
xhr.setRequestHeader('X-My-Custom-Header', 'CustomValue');<\/p>\n
\/\/ \u914d\u7f6e\u54cd\u5e94\u7684\u56de\u8c03\u51fd\u6570<\/p>\n
xhr.onreadystatechange = function() {<\/p>\n
    if(xhr.readyState === XMLHttpRequest.DONE) {<\/p>\n
        var status = xhr.status;<\/p>\n
        if (status >= 200 && status < 300 || status === 304) {<\/p>\n
            \/\/ \u8bf7\u6c42\u6210\u529f\u5904\u7406<\/p>\n
            console.log(xhr.responseText);<\/p>\n
        } else {<\/p>\n
            \/\/ \u8bf7\u6c42\u5931\u8d25\u5904\u7406<\/p>\n
            console.log(status);<\/p>\n
        }<\/p>\n
    }<\/p>\n
};<\/p>\n
\/\/ \u53d1\u9001\u8bf7\u6c42<\/p>\n
xhr.send();<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u5728fetch\u4e2d\u4f7f\u7528\u81ea\u5b9a\u4e49Header<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u652f\u6301\u73b0\u4ee3\u6807\u51c6\u7684API\uff0c\u4f7f\u7528fetch<\/code>\u6765\u53d1\u8d77\u8bf7\u6c42\u53d8\u5f97\u8d8a\u53d1\u666e\u904d\u3002fetch<\/code>\u5141\u8bb8\u4f60\u5728\u5176\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684headers<\/code>\u5c5e\u6027\u4e2d\u6dfb\u52a0\u81ea\u5b9a\u4e49header\u3002<\/p>\n<\/p>\n
\/\/ \u8bbe\u7f6e\u81ea\u5b9a\u4e49header\u53c2\u6570<\/p>\n
const headers = new Headers();<\/p>\n
headers.append('X-My-Custom-Header', 'CustomValue');<\/p>\n
\/\/ \u53d1\u8d77fetch\u8bf7\u6c42<\/p>\n
fetch('https:\/\/api.example.com\/data', {<\/p>\n
    method: 'GET',<\/p>\n
    headers: headers<\/p>\n
})<\/p>\n
.then(response => {<\/p>\n
    if (response.ok) {<\/p>\n
        return response.json();<\/p>\n
    }<\/p>\n
    throw new Error('Network response was not ok.');<\/p>\n
})<\/p>\n
.then(data => console.log(data))<\/p>\n
.catch(error => console.error('There has been a problem with your fetch operation:', error));<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528jQuery ajax\u65b9\u6cd5\u8bbe\u7f6e\u81ea\u5b9a\u4e49Header<\/h3>\n<\/p>\n
\u5982\u679c\u4f60\u662f\u5728\u4f7f\u7528jQuery\u5e93\u6765\u8fdb\u884cAJAX\u8bf7\u6c42\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7jQuery\u7684$.ajax<\/code>\u65b9\u6cd5\u7684beforeSend<\/code>\u9009\u9879\u6765\u6dfb\u52a0\u81ea\u5b9a\u4e49header\u3002<\/p>\n<\/p>\n
$.ajax({<\/p>\n
    url: 'https:\/\/api.example.com\/data',<\/p>\n
    type: 'GET',<\/p>\n
    beforeSend: function(xhr){<\/p>\n
        xhr.setRequestHeader('X-My-Custom-Header', 'CustomValue');<\/p>\n
    },<\/p>\n
    success: function(data) {<\/p>\n
        console.log(data);<\/p>\n
    },<\/p>\n
    error: function(error) {<\/p>\n
        console.error('There has been a problem with your operation:', error);<\/p>\n
    }<\/p>\n
});<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5728Axios\u4e2d\u914d\u7f6e\u81ea\u5b9a\u4e49Header<\/h3>\n<\/p>\n
Axios\u662f\u4e00\u4e2a\u57fa\u4e8ePromise\u7684HTTP\u5ba2\u6237\u7aef\uff0c\u9002\u7528\u4e8e\u6d4f\u89c8\u5668\u548cnode.js\u3002\u5728Axios\u4e2d\u8bbe\u7f6e\u81ea\u5b9a\u4e49header\u4e5f\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<\/p>\n
axios.get('https:\/\/api.example.com\/data', {<\/p>\n
    headers: {<\/p>\n
        'X-My-Custom-Header': 'CustomValue'<\/p>\n
    }<\/p>\n
})<\/p>\n
.then(response => {<\/p>\n
    console.log(response.data);<\/p>\n
})<\/p>\n
.catch(error => {<\/p>\n
    console.error('There has been a problem with your operation:', error);<\/p>\n
});<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4efb\u4f55\u7f51\u7ad9\u6216\u5e94\u7528\u7a0b\u5e8f\u4e0e\u670d\u52a1\u5668\u4ea4\u6362\u6570\u636e\u65f6\uff0c\u6b63\u786e\u914d\u7f6e\u8bf7\u6c42\u5934\u90e8\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u901a\u8fc7\u81ea\u5b9a\u4e49header\u53ef\u4ee5\u4f20\u9012\u989d\u5916\u7684\u4fe1\u606f\uff0c\u6bd4\u5982API\u5bc6\u94a5\u3001\u8bf7\u6c42\u5143\u6570\u636e\u6216\u7528\u6237\u8eab\u4efd\u4fe1\u606f\u3002\u8fd9\u4e9b\u4fe1\u606f\u6709\u52a9\u4e8e\u670d\u52a1\u5668\u66f4\u6b63\u786e\u5730\u7406\u89e3\u548c\u5904\u7406\u8bf7\u6c42\u3002HTTPHeader\u7684\u7075\u6d3b\u6027\u4f7f\u5176\u6210\u4e3a\u524d\u540e\u7aef\u901a\u4fe1\u4e2d\u4e0d\u5bb9\u5ffd\u89c6\u7684\u4e00\u4e2a\u73af\u8282\u3002\u5728\u5f00\u53d1\u65f6\u52a1\u5fc5\u6ce8\u610f\u6784\u9020\u5408\u9002\u7684\u5934\u90e8\u4fe1\u606f\uff0c\u9075\u5b88HTTP\u534f\u8bae\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002\u9002\u65f6\u7684\u8bbe\u7f6e\u81ea\u5b9a\u4e49header\u80fd\u591f\u589e\u52a0\u5e94\u7528\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\uff0c\u4f18\u5316\u7528\u6237\u4f53\u9a8c\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5982\u4f55\u5728ajax\u4e2d\u6dfb\u52a0\u81ea\u5b9a\u4e49header\u53c2\u6570\uff1f<\/strong><\/p>\n
\u5f53\u4f60\u60f3\u8981\u5728ajax\u8bf7\u6c42\u4e2d\u6dfb\u52a0\u81ea\u5b9a\u4e49\u7684header\u53c2\u6570\u65f6\uff0c\u4f60\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\uff1a<\/p>\n
    \n
  1. \n
    \u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\uff1a
    \n\u4f7f\u7528var xhr = new XMLHttpRequest();<\/code>\u6765\u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\u3002<\/p>\n<\/li>\n
  2. \n
    \u8bbe\u7f6eHTTP\u8bf7\u6c42\u5934\uff1a
    \n\u4f7f\u7528xhr.setRequestHeader(header, value);<\/code>\u65b9\u6cd5\u6765\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u7684header\u53c2\u6570\u3002\u5176\u4e2d\uff0cheader<\/code>\u53c2\u6570\u662f\u4f60\u8981\u8bbe\u7f6e\u7684header\u7684\u540d\u79f0\uff0cvalue<\/code>\u53c2\u6570\u662f\u8be5header\u7684\u503c\u3002<\/p>\n<\/li>\n
  3. \n
    \u53d1\u9001\u8bf7\u6c42\uff1a
    \n\u4f7f\u7528xhr.open(method, url, async);<\/code>\u65b9\u6cd5\u6765\u914d\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u3001\u8bf7\u6c42\u7684URL\u548c\u662f\u5426\u5f02\u6b65\u53d1\u8d77\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u901a\u8fc7\u8c03\u7528xhr.send(data);<\/code>\u65b9\u6cd5\u6765\u53d1\u9001\u8bf7\u6c42\u3002\u5176\u4e2d\uff0cdata<\/code>\u53c2\u6570\u53ef\u4ee5\u662f\u9700\u8981\u53d1\u9001\u5230\u670d\u52a1\u5668\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ol>\n
    \u8bf7\u95ee\u5982\u4f55\u4f7f\u7528ajax\u53d1\u9001\u5e26\u6709\u81ea\u5b9a\u4e49header\u53c2\u6570\u7684\u8bf7\u6c42\uff1f<\/strong><\/p>\n
    \u8981\u53d1\u9001\u5e26\u6709\u81ea\u5b9a\u4e49header\u53c2\u6570\u7684ajax\u8bf7\u6c42\uff0c\u4f60\u53ef\u4ee5\u6309\u7167\u4e0b\u9762\u7684\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\uff1a<\/p>\n
      \n
    1. \n
      \u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\uff1a
      \n\u4f7f\u7528var xhr = new XMLHttpRequest();<\/code>\u6765\u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\u3002<\/p>\n<\/li>\n
    2. \n
      \u8bbe\u7f6eHTTP\u8bf7\u6c42\u5934\uff1a
      \n\u4f7f\u7528xhr.setRequestHeader(header, value);<\/code>\u65b9\u6cd5\u6765\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u7684header\u53c2\u6570\u3002\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0cheader<\/code>\u53c2\u6570\u662f\u4f60\u8981\u8bbe\u7f6e\u7684header\u7684\u540d\u79f0\uff0cvalue<\/code>\u53c2\u6570\u662f\u8be5header\u7684\u503c\u3002<\/p>\n<\/li>\n
    3. \n
      \u76d1\u542c\u8bf7\u6c42\u72b6\u6001\u53d8\u5316\uff1a
      \n\u4f7f\u7528xhr.onreadystatechange<\/code>\u6765\u76d1\u542c\u8bf7\u6c42\u72b6\u6001\u7684\u53d8\u5316\u3002\u5f53xhr.readyState<\/code>\u7b49\u4e8e4\u4e14xhr.status<\/code>\u7b49\u4e8e200\u65f6\uff0c\u8868\u793a\u8bf7\u6c42\u5df2\u6210\u529f\u5b8c\u6210\u3002<\/p>\n<\/li>\n
    4. \n
      \u53d1\u9001\u8bf7\u6c42\uff1a
      \n\u4f7f\u7528xhr.open(method, url, async);<\/code>\u65b9\u6cd5\u6765\u914d\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u3001\u8bf7\u6c42\u7684URL\u548c\u662f\u5426\u5f02\u6b65\u53d1\u8d77\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u901a\u8fc7\u8c03\u7528xhr.send(data);<\/code>\u65b9\u6cd5\u6765\u53d1\u9001\u8bf7\u6c42\u3002\u5176\u4e2d\uff0cdata<\/code>\u53c2\u6570\u53ef\u4ee5\u662f\u9700\u8981\u53d1\u9001\u5230\u670d\u52a1\u5668\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ol>\n
      \u6709\u6ca1\u6709\u529e\u6cd5\u4e3aajax\u8bf7\u6c42\u6dfb\u52a0\u81ea\u5b9a\u4e49\u7684header\u53c2\u6570\uff1f<\/strong><\/p>\n
      \u5f53\u4f60\u5e0c\u671b\u4e3aajax\u8bf7\u6c42\u6dfb\u52a0\u81ea\u5b9a\u4e49\u7684header\u53c2\u6570\u65f6\uff0c\u4f60\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n
        \n
      1. \n
        \u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\uff1a
        \n\u4f7f\u7528var xhr = new XMLHttpRequest();<\/code>\u6765\u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\u3002<\/p>\n<\/li>\n
      2. \n
        \u8bbe\u7f6eHTTP\u8bf7\u6c42\u5934\uff1a
        \n\u4f7f\u7528xhr.setRequestHeader(header, value);<\/code>\u65b9\u6cd5\u6765\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u7684header\u53c2\u6570\u3002\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0cheader<\/code>\u53c2\u6570\u662f\u4f60\u8981\u8bbe\u7f6e\u7684header\u7684\u540d\u79f0\uff0cvalue<\/code>\u53c2\u6570\u662f\u8be5header\u7684\u503c\u3002<\/p>\n<\/li>\n
      3. \n
        \u53d1\u9001\u8bf7\u6c42\uff1a
        \n\u4f7f\u7528xhr.open(method, url, async);<\/code>\u65b9\u6cd5\u6765\u914d\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u3001\u8bf7\u6c42\u7684URL\u548c\u662f\u5426\u5f02\u6b65\u53d1\u8d77\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u901a\u8fc7\u8c03\u7528xhr.send(data);<\/code>\u65b9\u6cd5\u6765\u53d1\u9001\u8bf7\u6c42\u3002\u5176\u4e2d\uff0cdata<\/code>\u53c2\u6570\u53ef\u4ee5\u662f\u9700\u8981\u53d1\u9001\u5230\u670d\u52a1\u5668\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n
      4. \n
        \u76d1\u542c\u54cd\u5e94\uff1a
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