{"id":62455,"date":"2026-01-20T00:34:04","date_gmt":"2026-01-19T16:34:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62455.html"},"modified":"2026-01-20T00:34:04","modified_gmt":"2026-01-19T16:34:04","slug":"f12%e7%bd%91%e7%bb%9c%e6%95%99%e7%a8%8b-%e5%ae%a2%e6%88%b7%e7%ab%af-%e6%9c%8d%e5%8a%a1%e7%ab%af-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%89%8d%e7%ab%af-%e5%90%8e%e7%ab%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62455.html","title":{"rendered":"f12\u7f51\u7edc\u6559\u7a0b \u5ba2\u6237\u7aef \u670d\u52a1\u7aef \u670d\u52a1\u5668\u524d\u7aef \u540e\u7aef"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u5ba2\u6237\u7aef \u670d\u52a1\u7aef \u670d\u52a1\u5668 \u524d\u7aef \u540e\u7aef<\/li>\n<li>\n<ul>\n<li>\u5ba2\u6237\u7aef&#xff08;Client&#xff09;\u2014\u2014\u901a\u4fe1\u89d2\u8272<\/li>\n<li>\n<ul>\n<li>\u8bf7\u6c42\u53d1\u7ed9\u8c01\u4e86&#xff1f;\u6240\u6709\u5ba2\u6237\u7aef\u53d1\u8bf7\u6c42\u65f6&#xff0c;\u8bf7\u6c42\u7684\u94fe\u63a5\u4e00\u5b9a\u6709 IP \u548c\u7aef\u53e3\u3002<\/li>\n<li>\n<ul>\n<li>url\u91cc\u6709 IP \u2192 \u76f4\u63a5\u7528&#xff0c;\u6ca1\u6709 IP \u2192 \u8c03\u7528 DNS \u67e5\u57df\u540d \u2192 \u5f97\u5230 IP<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u670d\u52a1\u7aef&#xff08;Server&#xff09;&#8211;\u901a\u4fe1\u89d2\u8272<\/li>\n<li>\n<ul>\n<li>\u670d\u52a1\u5668 \u7a0b\u5e8f\u8fd0\u884c\u7684\u673a\u5668<\/li>\n<\/ul>\n<\/li>\n<li>\u524d\u7aef&#xff08;Front-end&#xff09;\u2014\u2014\u7cfb\u7edf\u5206\u5c42<\/li>\n<li>\n<ul>\n<li>\u524d\u7aef\u4e0d\u7b49\u4e8e\u6d4f\u89c8\u5668&#xff0c;\u6d4f\u89c8\u5668 &#061; \u524d\u7aef\u5e38\u89c1\u7684\u8fd0\u884c\u73af\u5883\u4e4b\u4e00<\/li>\n<\/ul>\n<\/li>\n<li>\u540e\u7aef &#8212; \u7cfb\u7edf\u5206\u5c42<\/li>\n<li>\u603b\u7ed3<\/li>\n<li>\n<ul>\n<li>Web \u7cfb\u7edf\u4f1a\u53eb\u524d\u540e\u7aef\/\u975e Web \u7cfb\u7edf \u4e00\u822c\u90fd\u662f\u5ba2\u6237\u7aef&#xff0c;\u670d\u52a1\u7aef<\/li>\n<li>\u7a0b\u5e8f&amp;\u670d\u52a1\u5668<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>f12-\u300bnetwork(\u7f51\u7edc)-&gt;\u8fc7\u6ee4-&gt;\u5237\u65b0-&gt; XHR \/ Fetch-\u300b\u70b9\u5f00\u5176\u4e2d\u4e00\u4e2a\u8bf7\u6c42<\/li>\n<li>\n<ul>\n<li>\u6e05\u7a7a\u518d\u64cd\u4f5c: \u5982\u679c\u8bf7\u6c42\u592a\u591a&#xff0c;\u5148\u70b9\u51fb Network \u9762\u677f\u7684\u6e05\u7a7a\u6309\u94ae&#xff0c;\u518d\u64cd\u4f5c\u9875\u9762<\/li>\n<li>XHR \/ Fetch \u9762\u677f\u91cc\u770b\u5230\u7684\u8bf7\u6c42 &#061; \u6d4f\u89c8\u5668\u4f1a\u5411\u540e\u7aef\u53d1\u7684HTTP\u8bf7\u6c42<\/li>\n<li>XHR \/ Fetch XHR \/ Fetch \u8fd9\u4e2a\u7b5b\u9009\u5668 &#061; \u53ea\u770b\u201c\u63a5\u53e3\u8bf7\u6c42\u201d&#xff0c;\u524d\u7aef\u8bf7\u6c42\u540e\u7aef\u63a5\u53e3&#xff0c;\u5c31\u662f&#xff1a;\u6d4f\u89c8\u5668\u7528\u6765\u548c\u540e\u7aef\u63a5\u53e3\u201c\u636e\u201d\u7684\u65b9\u5f0f<\/li>\n<li>\n<ul>\n<li>XHR &#061; XMLHttpRequest<\/li>\n<li>Fetch<\/li>\n<li>XHR\/Fetch \u8bf7\u6c42\u8be6\u60c5<\/li>\n<li>\n<ul>\n<li>payload \u8f7d\u8377<\/li>\n<li>preview \u9884\u89c8<\/li>\n<li>response<\/li>\n<li>Initiator&#xff08;\u542f\u52a8\u5668 \/ \u8c03\u7528\u6765\u6e90&#xff09;<\/li>\n<li>Timing&#xff08;\u65f6\u95f4&#xff09;<\/li>\n<li>Cookies&#xff08;Cookie&#xff09;<\/li>\n<li>header \u8bf7\u6c42\u5934<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u6d4f\u89c8\u5668 Network \u9762\u677f\u91cc\u90fd\u6709\u54ea\u4e9b\u4e1c\u897f&#xff0c;\u4ee5\u53ca XHR\/Fetch \u548c\u5176\u4ed6\u6761\u76ee\u7684\u533a\u522b<\/li>\n<li>\n<ul>\n<li>\u4e3a\u4ec0\u4e48 XHR \/ Fetch \u624d\u662f\u524d\u540e\u7aef\u4ea4\u4e92&#xff1f;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u600e\u4e48\u5728\u540e\u7aef\u4ee3\u7801&#xff0c;\u641c\u8bf7\u6c42\u7684\u7f51\u5740\u3002\u641cpath\u6bb5&#xff0c;\u590d\u5236\u4e00\u90e8\u5206\u5173\u952e\u7684\u8def\u5f84&#xff0c;\u90fd\u4e0d\u5230\u5c31\u5728\u5c11\u590d\u5236\u4e00\u70b9<\/li>\n<\/ul>\n<h2>\u5ba2\u6237\u7aef \u670d\u52a1\u7aef \u670d\u52a1\u5668 \u524d\u7aef \u540e\u7aef<\/h2>\n<h3>\u5ba2\u6237\u7aef&#xff08;Client&#xff09;\u2014\u2014\u901a\u4fe1\u89d2\u8272<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf73ce90.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u8bf7\u6c42\u53d1\u7ed9\u8c01\u4e86&#xff1f;\u6240\u6709\u5ba2\u6237\u7aef\u53d1\u8bf7\u6c42\u65f6&#xff0c;\u8bf7\u6c42\u7684\u94fe\u63a5\u4e00\u5b9a\u6709 IP \u548c\u7aef\u53e3\u3002<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf761924.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf77d998.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>url\u91cc\u6709 IP \u2192 \u76f4\u63a5\u7528&#xff0c;\u6ca1\u6709 IP \u2192 \u8c03\u7528 DNS \u67e5\u57df\u540d \u2192 \u5f97\u5230 IP<\/h5>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf788e15.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf79f024.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u670d\u52a1\u7aef&#xff08;Server&#xff09;\u2013\u901a\u4fe1\u89d2\u8272<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf7b4954.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf7c0c81.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u670d\u52a1\u5668 \u7a0b\u5e8f\u8fd0\u884c\u7684\u673a\u5668<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf7d7449.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163359-696e5cf7e996e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u524d\u7aef&#xff08;Front-end&#xff09;\u2014\u2014\u7cfb\u7edf\u5206\u5c42<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163400-696e5cf86be9a.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163400-696e5cf888934.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u524d\u7aef\u4e0d\u7b49\u4e8e\u6d4f\u89c8\u5668&#xff0c;\u6d4f\u89c8\u5668 &#061; \u524d\u7aef\u5e38\u89c1\u7684\u8fd0\u884c\u73af\u5883\u4e4b\u4e00<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163400-696e5cf8cee3f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163401-696e5cf9175a9.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u540e\u7aef \u2013 \u7cfb\u7edf\u5206\u5c42<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163401-696e5cf92bbe1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163401-696e5cf95ae4f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163401-696e5cf991bf8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163401-696e5cf99e13a.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>Web \u7cfb\u7edf\u4f1a\u53eb\u524d\u540e\u7aef\/\u975e Web \u7cfb\u7edf \u4e00\u822c\u90fd\u662f\u5ba2\u6237\u7aef&#xff0c;\u670d\u52a1\u7aef<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163401-696e5cf9ea4b7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u7a0b\u5e8f&amp;\u670d\u52a1\u5668<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163402-696e5cfa76318.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>f12-\u300bnetwork(\u7f51\u7edc)-&gt;\u8fc7\u6ee4-&gt;\u5237\u65b0-&gt; XHR \/ Fetch-\u300b\u70b9\u5f00\u5176\u4e2d\u4e00\u4e2a\u8bf7\u6c42<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119163403-696e5cfb08b23.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u6e05\u7a7a\u518d\u64cd\u4f5c: \u5982\u679c\u8bf7\u6c42\u592a\u591a&#xff0c;\u5148\u70b9\u51fb Network \u9762\u677f\u7684\u6e05\u7a7a\u6309\u94ae&#xff0c;\u518d\u64cd\u4f5c\u9875\u9762<\/h3>\n<p><img decoding=\"async\" src=\"2026-01-203o0bpfadl0y.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>XHR \/ Fetch \u9762\u677f\u91cc\u770b\u5230\u7684\u8bf7\u6c42 &#061; \u6d4f\u89c8\u5668\u4f1a\u5411\u540e\u7aef\u53d1\u7684HTTP\u8bf7\u6c42<\/h3>\n<p><img decoding=\"async\" src=\"2026-01-20efbqclskybz.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"2026-01-20f1h3jvpjifz.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>XHR \/ Fetch XHR \/ Fetch \u8fd9\u4e2a\u7b5b\u9009\u5668 &#061; \u53ea\u770b\u201c\u63a5\u53e3\u8bf7\u6c42\u201d&#xff0c;\u524d\u7aef\u8bf7\u6c42\u540e\u7aef\u63a5\u53e3&#xff0c;\u5c31\u662f&#xff1a;\u6d4f\u89c8\u5668\u7528\u6765\u548c\u540e\u7aef\u63a5\u53e3\u201c\u636e\u201d\u7684\u65b9\u5f0f<\/h3>\n<h4>XHR &#061; XMLHttpRequest<\/h4>\n<p><img decoding=\"async\" src=\"2026-01-20pz5coxvavqo.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>Fetch<\/h4>\n<p><img decoding=\"async\" src=\"2026-01-20lfo0kkrcci4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>XHR\/Fetch \u8bf7\u6c42\u8be6\u60c5<\/h4>\n<p><img decoding=\"async\" src=\"2026-01-20ajgr1xrmfna.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>payload \u8f7d\u8377<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-20c5lyjv5wdy5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>preview \u9884\u89c8<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-20vezzac3fqcp.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>response<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-204um4pnrpehy.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>Initiator&#xff08;\u542f\u52a8\u5668 \/ \u8c03\u7528\u6765\u6e90&#xff09;<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-200doifnd2ccg.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>Timing&#xff08;\u65f6\u95f4&#xff09;<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-2042c1jdn5und.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>Cookies&#xff08;Cookie&#xff09;<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-20njn0shnfv3f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>header \u8bf7\u6c42\u5934<\/h5>\n<p><img decoding=\"async\" src=\"2026-01-20qug0cofr2i2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u6d4f\u89c8\u5668 Network \u9762\u677f\u91cc\u90fd\u6709\u54ea\u4e9b\u4e1c\u897f&#xff0c;\u4ee5\u53ca XHR\/Fetch \u548c\u5176\u4ed6\u6761\u76ee\u7684\u533a\u522b<\/h3>\n<p><img decoding=\"async\" src=\"2026-01-20kwotbdut3zg.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u4e3a\u4ec0\u4e48 XHR \/ Fetch \u624d\u662f\u524d\u540e\u7aef\u4ea4\u4e92&#xff1f;<\/h4>\n<p><img decoding=\"async\" src=\"2026-01-20sebzxqey0mq.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"2026-01-200imk4kg545q.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u600e\u4e48\u5728\u540e\u7aef\u4ee3\u7801&#xff0c;\u641c\u8bf7\u6c42\u7684\u7f51\u5740\u3002\u641cpath\u6bb5&#xff0c;\u590d\u5236\u4e00\u90e8\u5206\u5173\u952e\u7684\u8def\u5f84&#xff0c;\u90fd\u4e0d\u5230\u5c31\u5728\u5c11\u590d\u5236\u4e00\u70b9<\/h2>\n<p><img decoding=\"async\" src=\"2026-01-20p2r2jm22czc.png\" 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