{"id":5171,"date":"2016-07-12T14:15:33","date_gmt":"2016-07-12T06:15:33","guid":{"rendered":"https:\/\/sdeno.com\/?p=5171"},"modified":"2016-07-12T14:19:15","modified_gmt":"2016-07-12T06:19:15","slug":"express-4-x-%e4%b8%ad%e6%96%87%e6%89%8b%e5%86%8capi","status":"publish","type":"post","link":"https:\/\/sdeno.com\/?p=5171","title":{"rendered":"Express 4.x \u4e2d\u6587\u624b\u518cAPI"},"content":{"rendered":"

\u6765\u6e90\uff1ahttps:\/\/www.zybuluo.com\/XiangZhou\/note\/208532<\/a><\/h2>\n

express()<\/h2>\n

express()<\/code>\u7528\u6765\u521b\u5efa\u4e00\u4e2aExpress\u7684\u7a0b\u5e8f\u3002express()<\/code>\u65b9\u6cd5\u662fexpress<\/em><\/strong>\u6a21\u5757\u5bfc\u51fa\u7684\u9876\u5c42\u65b9\u6cd5\u3002<\/p>\n

<\/div>\n
    \n
  1. var<\/span> express <\/span>=<\/span> require<\/span>(<\/span>'express'<\/span>);<\/span><\/code><\/li>\n
  2. var<\/span> app <\/span>=<\/span> express<\/span>();<\/span><\/code><\/li>\n<\/ol>\n
    <\/div>\n

    Methods<\/h3>\n
    <\/div>\n

    express.static(root, [options])<\/h4>\n

    express.static<\/code>\u662fExpress\u4e2d\u552f\u4e00\u7684\u5185\u5efa\u4e2d\u95f4\u4ef6\u3002\u5b83\u4ee5server-static<\/a>\u6a21\u5757\u4e3a\u57fa\u7840\u5f00\u53d1\uff0c\u8d1f\u8d23\u6258\u7ba1 Express \u5e94\u7528\u5185\u7684\u9759\u6001\u8d44\u6e90\u3002
    \n\u53c2\u6570root<\/code>\u4e3a\u9759\u6001\u8d44\u6e90\u7684\u6240\u5728\u7684\u6839\u76ee\u5f55\u3002
    \n\u53c2\u6570options<\/code>\u662f\u53ef\u9009\u7684\uff0c\u652f\u6301\u4ee5\u4e0b\u7684\u5c5e\u6027\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    \u5c5e\u6027<\/th>\n\u63cf\u8ff0<\/th>\n\u7c7b\u578b<\/th>\n\u9ed8\u8ba4\u503c<\/th>\n<\/tr>\n<\/thead>\n
    dotfiles<\/td>\n\u662f\u5426\u54cd\u5e94\u70b9\u6587\u4ef6\u3002\u4f9b\u9009\u62e9\u7684\u503c\u6709”allow”\uff0c”deny”\u548c”ignore”<\/td>\nString<\/td>\n“ignore”<\/td>\n<\/tr>\n
    etag<\/td>\n\u4f7f\u80fd\u6216\u8005\u5173\u95edetag<\/td>\nBoolean<\/td>\ntrue<\/td>\n<\/tr>\n
    extensions<\/td>\n\u8bbe\u7f6e\u6587\u4ef6\u5ef6\u671f\u56de\u9000<\/td>\nBoolean<\/td>\ntrue<\/td>\n<\/tr>\n
    index<\/td>\n\u53d1\u9001\u76ee\u5f55\u7d22\u5f15\u6587\u4ef6\u3002\u8bbe\u7f6efalse\u5c06\u4e0d\u53d1\u9001\u3002<\/td>\nMixed<\/td>\n“index.html”<\/td>\n<\/tr>\n
    lastModified<\/td>\n\u8bbe\u7f6e\u6587\u4ef6\u5728\u7cfb\u7edf\u4e2d\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4\u5230Last-Modified<\/code>\u5934\u90e8\u3002\u53ef\u80fd\u7684\u53d6\u503c\u6709false<\/code>\u548ctrue<\/code>\u3002<\/td>\nBoolean<\/td>\ntrue<\/td>\n<\/tr>\n
    maxAge<\/td>\n\u5728Cache-Control\u5934\u90e8\u4e2d\u8bbe\u7f6emax-age<\/code>\u5c5e\u6027\uff0c\u7cbe\u5ea6\u4e3a\u6beb\u79d2(ms)\u6216\u5219\u4e00\u6bb5ms format<\/a>\u7684\u5b57\u7b26\u4e32<\/td>\nNumber<\/td>\n0<\/td>\n<\/tr>\n
    redirect<\/td>\n\u5f53\u8bf7\u6c42\u7684pathname\u662f\u4e00\u4e2a\u76ee\u5f55\u7684\u65f6\u5019\uff0c\u91cd\u5b9a\u5411\u5230\u5c3e\u968f”\/”<\/td>\nBoolean<\/td>\ntrue<\/td>\n<\/tr>\n
    setHeaders<\/td>\n\u5f53\u54cd\u5e94\u9759\u6001\u6587\u4ef6\u8bf7\u6c42\u65f6\u8bbe\u7f6eheaders\u7684\u65b9\u6cd5<\/td>\nFuntion<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5982\u679c\u4f60\u60f3\u83b7\u5f97\u66f4\u591a\u5173\u4e8e\u4f7f\u7528\u4e2d\u95f4\u4ef6\u7684\u7ec6\u8282\uff0c\u4f60\u53ef\u4ee5\u67e5\u9605Serving static files in Express<\/a>\u3002<\/p>\n

    <\/div>\n

    Application()<\/h2>\n

    app<\/code>\u5bf9\u8c61\u4e00\u822c\u7528\u6765\u8868\u793aExpress\u7a0b\u5e8f\u3002\u901a\u8fc7\u8c03\u7528Express\u6a21\u5757\u5bfc\u51fa\u7684\u9876\u5c42\u7684express()<\/code>\u65b9\u6cd5\u6765\u521b\u5efa\u5b83:<\/p>\n

    <\/div>\n
      \n
    1. var<\/span> express <\/span>=<\/span> require<\/span>(<\/span>'express'<\/span>);<\/span><\/code><\/li>\n
    2. var<\/span> app <\/span>=<\/span> express<\/span>();<\/span><\/code><\/li>\n
    3. <\/code><\/li>\n
    4. app<\/span>.<\/span>get<\/span>(<\/span>'\/'<\/span>,<\/span>function<\/span>(<\/span>req<\/span>,<\/span> res<\/span>)<\/span>{<\/span><\/code><\/li>\n
    5. res<\/span>.<\/span>send<\/span>(<\/span>'hello world!'<\/span>);<\/span><\/code><\/li>\n
    6. });<\/span><\/code><\/li>\n
    7. <\/code><\/li>\n
    8. app<\/span>.<\/span>listen<\/span>(<\/span>3000<\/span>);<\/span><\/code><\/li>\n<\/ol>\n

      app<\/code>\u5bf9\u8c61\u5177\u6709\u4ee5\u4e0b\u7684\u65b9\u6cd5\uff1a<\/p>\n