{"id":38590,"date":"2023-08-15T11:29:29","date_gmt":"2023-08-20T01:16:25","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%80%9a%e8%bf%87react%e7%bb%8f%e7%94%b1rails%e4%b8%8a%e4%bc%a0%e6%96%87%e4%bb%b6%e5%88%b0s3%e7%9a%84%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-30T18:39:00","modified_gmt":"2024-04-30T10:39:00","slug":"%e9%80%9a%e8%bf%87react%e7%bb%8f%e7%94%b1rails%e4%b8%8a%e4%bc%a0%e6%96%87%e4%bb%b6%e5%88%b0s3%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%80%9a%e8%bf%87react%e7%bb%8f%e7%94%b1rails%e4%b8%8a%e4%bc%a0%e6%96%87%e4%bb%b6%e5%88%b0s3%e7%9a%84%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u901a\u8fc7React\u7ecf\u7531Rails\u4e0a\u4f20\u6587\u4ef6\u5230S3\u7684\u65b9\u6cd5"},"content":{"rendered":"

\u4f60\u597d\uff0c\u6211\u662f\u5c0f\u83dc\u4e00\u679a\u3002
\n\u6700\u8fd1\u6211\u5c1d\u8bd5\u4f7f\u7528React\u6765\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u4e0a\u4f20\u529f\u80fd\uff0c\u4f46\u610f\u5916\u5730\u9047\u5230\u4e86\u4e00\u4e9b\u56f0\u6270\uff0c\u6240\u4ee5\u6211\u5199\u4e86\u4e00\u7bc7\u6587\u7ae0\u6765\u5206\u4eab\u7ecf\u9a8c\u3002
\n\u540e\u7aef\u6211\u4f7f\u7528Rails\u5c06\u6587\u4ef6\u5b58\u50a8\u5728S3\u4e0a\u3002<\/p>\n

\u5c06\u6587\u4ef6\u6570\u636e\u4eceReact\u53d1\u9001\u5230Rails\u3002<\/h2>\n

\u9996\u5148\u521b\u5efa\u4e00\u4e2a\u9644\u52a0\u6587\u4ef6\u7684\u6309\u94ae\u3002
\n\u6709\u5f88\u591a\u9009\u62e9\uff0c\u4f46\u8fd9\u6b21\u6211\u4eec\u9009\u62e9\u4e86Material-UI\u3002
\n\u5b83\u65e2\u65f6\u5c1a\u53c8\u5177\u5907\u5230\u8fbe\u75d2\u5904\u7684\u529f\u80fd\u3002
\n\u9996\u5148\u5b89\u88c5Material-UI\u3002<\/p>\n

yarn add @mui\/material @emotion\/react @emotion\/styled\r\n<\/code><\/pre>\n
\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u590d\u5236\u5e76\u7c98\u8d34\u3002<\/p>\n
import<\/span> React<\/span>,{<\/span>useMemo<\/span>}<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\nimport<\/span> Input<\/span> from<\/span> \"<\/span>@mui\/material\/Input<\/span>\"<\/span>;<\/span>\r\nexport<\/span> default<\/span> function<\/span> APP<\/span>()<\/span> {<\/span>\r\n  const<\/span> [<\/span>file<\/span>,<\/span> setFile<\/span>]<\/span> =<\/span> React<\/span>.<\/span>useState<\/span><<\/span>File<\/span> |<\/span> string<\/span>><\/span>();<\/span>\r\n  const<\/span> handleChangeFile<\/span> =<\/span> useMemo<\/span>(<\/span>\r\n    ()<\/span> =><\/span> (<\/span>e<\/span>:<\/span> any<\/span>)<\/span> =><\/span> {<\/span>\r\n      const<\/span> file<\/span> =<\/span> e<\/span>.<\/span>target<\/span>.<\/span>files<\/span>[<\/span>0<\/span>];<\/span>\r\n      setFile<\/span>(<\/span>file<\/span>);<\/span>\r\n    },<\/span>\r\n    [<\/span>file<\/span>]<\/span>\r\n  );<\/span>\r\n  return <\/span>(<\/span>\r\n    <<\/span>label<\/span> htmlFor<\/span>=<\/span>\"<\/span>contained-button-file<\/span>\"<\/span>><\/span>\r\n      <<\/span>Input<\/span>\r\n        id<\/span>=<\/span>\"<\/span>contained-button-file<\/span>\"<\/span>\r\n        type<\/span>=<\/span>\"<\/span>file<\/span>\"<\/span>\r\n        onChange<\/span>=<\/span>{(<\/span>e<\/span>:<\/span> React<\/span>.<\/span>ChangeEvent<\/span><<\/span>HTMLInputElement<\/span>><\/span>)<\/span> =><\/span> {<\/span>\r\n          handleChangeFile<\/span>(<\/span>e<\/span>);<\/span>\r\n        }}<\/span>\r\n      \/<\/span>>\r\n<\/span>    <<\/span>\/label<\/span>>\r\n<\/span>  );<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee3\u7801\u6c99\u76d2\uff1a\u793a\u4f8b
\n\u901a\u8fc7\u67e5\u770b\u4e0a\u65b9\uff0c\u4f60\u4f1a\u53d1\u73b0\u51fa\u73b0\u4e86\u4e00\u4e2a\u6587\u4ef6\u9644\u4ef6\u6309\u94ae\u3002
\n\u7b80\u5355\u6765\u89e3\u91ca\u4e00\u4e0b\uff0c\u5f53\u4f60\u9644\u52a0\u6587\u4ef6\u65f6\uff0c\u5b83\u5c06\u4f1a\u51fa\u73b0\u3002<\/p>\n
onChange<\/span>=<\/span>{(<\/span>e<\/span>:<\/span> React<\/span>.<\/span>ChangeEvent<\/span><<\/span>HTMLInputElement<\/span>><\/span>)<\/span> =><\/span> {<\/span>\r\n  handleChangeFile<\/span>(<\/span>e<\/span>);<\/span>\r\n}}<\/span>\r\n<\/code><\/pre>\n
\u2191\u70b9\u71c3<\/p>\n
const<\/span> handleChangeFile<\/span> =<\/span> useMemo<\/span>(<\/span>\r\n  ()<\/span> =><\/span> (<\/span>e<\/span>:<\/span> any<\/span>)<\/span> =><\/span> {<\/span>\r\n    const<\/span> file<\/span> =<\/span> e<\/span>.<\/span>target<\/span>.<\/span>files<\/span>[<\/span>0<\/span>];<\/span>\r\n    setFile<\/span>(<\/span>file<\/span>);<\/span>\r\n  },<\/span>\r\n  [<\/span>file<\/span>]<\/span>\r\n);<\/span>\r\n<\/code><\/pre>\n
\u6267\u884c\u2191\u64cd\u4f5c\uff0c\u5e76\u5c06\u9009\u62e9\u7684\u7b2c\u4e00\u4e2a\u6587\u4ef6\u5b58\u50a8\u5728file\u53d8\u91cf\u4e2d\u3002
\n\u7136\u540e\u5c06file\u53d1\u9001\u5230Rails\uff0c\u4ee5\u4fbf\u8fdb\u884c\u4e0b\u4e00\u6b65\u64cd\u4f5c\uff0c\u4f46\u662f\u76ee\u524dRails\u65e0\u6cd5\u8bc6\u522b\u8be5\u6587\u4ef6\u3002
\n\u9700\u8981\u5c06file\u8f6c\u6362\u4e3a\u6587\u4ef6\u683c\u5f0f\u624d\u884c\u3002
\n\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u3002<\/p>\n
import<\/span> React<\/span>,{<\/span>useMemo<\/span>}<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\nimport<\/span> Input<\/span> from<\/span> \"<\/span>@mui\/material\/Input<\/span>\"<\/span>;<\/span>\r\nexport<\/span> default<\/span> function<\/span> APP<\/span>()<\/span> {<\/span>\r\n  const<\/span> [<\/span>file<\/span>,<\/span> setFile<\/span>]<\/span> =<\/span> React<\/span>.<\/span>useState<\/span><<\/span>File<\/span> |<\/span> string<\/span>><\/span>();<\/span>\r\n  const<\/span> handleChangeFile<\/span> =<\/span> useMemo<\/span>(<\/span>\r\n    ()<\/span> =><\/span> (<\/span>e<\/span>:<\/span> any<\/span>)<\/span> =><\/span> {<\/span>\r\n      const<\/span> file<\/span> =<\/span> e<\/span>.<\/span>target<\/span>.<\/span>files<\/span>[<\/span>0<\/span>];<\/span>\r\n      setFile<\/span>(<\/span>file<\/span>);<\/span>\r\n    },<\/span>\r\n    [<\/span>file<\/span>]<\/span>\r\n  );<\/span>\r\n+ <\/span> const<\/span> createFormData<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n<\/span>+ <\/span>   const<\/span> formData<\/span> =<\/span> new<\/span> FormData<\/span>();<\/span>\r\n<\/span>+ <\/span>   formData<\/span>.<\/span>append<\/span>(<\/span>\"<\/span>user[file]<\/span>\"<\/span>,<\/span> file<\/span>!<\/span>);<\/span>\r\n<\/span>+ <\/span>   return<\/span> formData<\/span>;<\/span>\r\n<\/span>+ <\/span> };<\/span>\r\n<\/span>  return <\/span>(<\/span>\r\n    <<\/span>label<\/span> htmlFor<\/span>=<\/span>\"<\/span>contained-button-file<\/span>\"<\/span>><\/span>\r\n      <<\/span>Input<\/span>\r\n        id<\/span>=<\/span>\"<\/span>contained-button-file<\/span>\"<\/span>\r\n        type<\/span>=<\/span>\"<\/span>file<\/span>\"<\/span>\r\n        onChange<\/span>=<\/span>{(<\/span>e<\/span>:<\/span> React<\/span>.<\/span>ChangeEvent<\/span><<\/span>HTMLInputElement<\/span>><\/span>)<\/span> =><\/span> {<\/span>\r\n          handleChangeFile<\/span>(<\/span>e<\/span>);<\/span>\r\n        }}<\/span>\r\n      \/<\/span>><\/span>\r\n    <<\/span>\/label<\/span>><\/span>\r\n  );<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
formData.append\u88ab\u8f6c\u6362\u4e3a\u6587\u4ef6\u683c\u5f0f\u3002
\nformData.append\u7684\u53c2\u6570\u662f<\/p>\n
formData<\/span>.<\/span>append<\/span>(<\/span>\"<\/span>Rails\u306e\u30c6\u30fc\u30d6\u30eb\u540d[\u30ab\u30e9\u30e0\u540d]<\/span>\"<\/span>,<\/span> \u30d5\u30a1\u30a4\u30eb\u304c\u683c\u7d0d\u3055\u308c\u305f\u5909\u6570<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u6211\u51b3\u5b9a\u6210\u8fd9\u6837\u3002
\n\u8bf7\u6ce8\u610f\u8868\u540d\u6ca1\u6709\u201cs\u201d\u3002
\n\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528axios\u5c06\u6570\u636e\u53d1\u9001\u5230Rails\u3002<\/p>\n
yarn add axios\r\n<\/code><\/pre>\n
\u8bf7\u5b89\u88c5 Axios\u3002
\n\u8bf7\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u3002<\/p>\n
import<\/span> React<\/span>,<\/span> {<\/span> useMemo<\/span> }<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\nimport<\/span> Input<\/span> from<\/span> \"<\/span>@mui\/material\/Input<\/span>\"<\/span>;<\/span>\r\n+ <\/span>import<\/span> Button<\/span> from<\/span> \"<\/span>@mui\/material\/Button<\/span>\"<\/span>;<\/span>\r\n<\/span>+ <\/span>import<\/span> axios<\/span> from<\/span> \"<\/span>axios<\/span>\"<\/span>;<\/span>\r\n<\/span>export<\/span> default<\/span> function<\/span> APP<\/span>()<\/span> {<\/span>\r\n  const<\/span> [<\/span>file<\/span>,<\/span> setFile<\/span>]<\/span> =<\/span> React<\/span>.<\/span>useState<\/span><<\/span>File<\/span> |<\/span> string<\/span>><\/span>();<\/span>\r\n  const<\/span> handleChangeFile<\/span> =<\/span> useMemo<\/span>(<\/span>\r\n    ()<\/span> =><\/span> (<\/span>e<\/span>:<\/span> any<\/span>)<\/span> =><\/span> {<\/span>\r\n      const<\/span> file<\/span> =<\/span> e<\/span>.<\/span>target<\/span>.<\/span>files<\/span>[<\/span>0<\/span>];<\/span>\r\n      setFile<\/span>(<\/span>file<\/span>);<\/span>\r\n    },<\/span>\r\n    [<\/span>file<\/span>]<\/span>\r\n  );<\/span>\r\n  const<\/span> createFormData<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n    const<\/span> formData<\/span> =<\/span> new<\/span> FormData<\/span>();<\/span>\r\n    formData<\/span>.<\/span>append<\/span>(<\/span>\"<\/span>user[file]<\/span>\"<\/span>,<\/span> file<\/span>!<\/span>);<\/span>\r\n    return<\/span> formData<\/span>;<\/span>\r\n  };<\/span>\r\n+ <\/span>  const<\/span> postFile<\/span> =<\/span> async <\/span>()<\/span> =><\/span> {<\/span>\r\n<\/span>+ <\/span>    const<\/span> data<\/span> =<\/span> createFormData<\/span>();<\/span>\r\n<\/span>+ <\/span>    await<\/span> axios<\/span>\r\n<\/span>+ <\/span>      .<\/span>post<\/span>(<\/span>`http:\/\/localhost:3000\/post_file\/`<\/span>,<\/span> data<\/span>)<\/span>\r\n<\/span>+ <\/span>      .<\/span>then<\/span>((<\/span>response<\/span>)<\/span> =><\/span> {<\/span>\r\n<\/span>+ <\/span>        \/\/\u6210\u529f\u3057\u305f\u3068\u304d\u306e\u51e6\u7406<\/span>\r\n<\/span>+ <\/span>      })<\/span>\r\n<\/span>+ <\/span>      .<\/span>catch<\/span>(()<\/span> =><\/span> {<\/span>\r\n<\/span>+ <\/span>        \/\/\u5931\u6557\u3057\u305f\u3068\u304d\u306e\u51e6\u7406<\/span>\r\n<\/span>+ <\/span>      });<\/span>\r\n<\/span>+ <\/span>  };<\/span>\r\n<\/span>  return <\/span>(<\/span>\r\n    <<\/span>label<\/span> htmlFor<\/span>=<\/span>\"<\/span>contained-button-file<\/span>\"<\/span>><\/span>\r\n      <<\/span>Input<\/span>\r\n        id<\/span>=<\/span>\"<\/span>contained-button-file<\/span>\"<\/span>\r\n        type<\/span>=<\/span>\"<\/span>file<\/span>\"<\/span>\r\n        onChange<\/span>=<\/span>{(<\/span>e<\/span>:<\/span> React<\/span>.<\/span>ChangeEvent<\/span><<\/span>HTMLInputElement<\/span>><\/span>)<\/span> =><\/span> {<\/span>\r\n          handleChangeFile<\/span>(<\/span>e<\/span>);<\/span>\r\n        }}<\/span>\r\n      \/<\/span>><\/span>\r\n+ <\/span>      <<\/span>Button<\/span>\r\n<\/span>+ <\/span>        size<\/span>=<\/span>\"<\/span>medium<\/span>\"<\/span>\r\n<\/span>+ <\/span>        onClick<\/span>=<\/span>{()<\/span> =><\/span> {<\/span>\r\n<\/span>+ <\/span>          postFile<\/span>();<\/span>\r\n<\/span>+ <\/span>        }}<\/span>\r\n<\/span>+ <\/span>      ><\/span>\r\n<\/span>+ <\/span>        Rails\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u9001\u4fe1<\/span>\r\n<\/span>+ <\/span>      <<\/span>\/Button<\/span>><\/span>\r\n<\/span>    <<\/span>\/label<\/span>><\/span>\r\n  );<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee3\u7801\u6c99\u76d2\uff1a\u793a\u4f8b
\n\u6211\u8ba4\u4e3a\u5f53\u60a8\u6dfb\u52a0\u4ee3\u7801\u65f6\uff0c\u4f1a\u5f97\u5230\u4e0e\u4e0a\u8ff0\u76f8\u540c\u7684\u7ed3\u679c\u3002
\n\u5f53\u70b9\u51fb\u6309\u94ae\u540e\uff0cpostFile\u51fd\u6570\u4f1a\u88ab\u89e6\u53d1\uff0caxios\u4f1a\u5f00\u59cb\u8fd0\u884c\u3002<\/p>\n
const<\/span> data<\/span> =<\/span> createFormData<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u5c06\u5728\u6b64\u5904\u8f6c\u6362\u7684\u6587\u4ef6\u5b58\u50a8\u5230data\u4e2d<\/p>\n
.<\/span>post<\/span>(<\/span>`http:\/\/localhost:3000\/post_file\/`<\/span>,<\/span> data<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u5411Rails\u53d1\u9001\u6570\u636e\u3002
\n\u5f53\u7136\uff0c\u5728\u6b63\u5f0f\u73af\u5883\u4e0b\uff0chttp:\/\/localhost:3000\u7684\u90e8\u5206\u4f1a\u6539\u53d8\u3002
\n\u8bf7\u5c06\u60a8\u81ea\u5df1\u7684\u6b63\u5f0f\u73af\u5883URL\u653e\u5165\u3002
\n\u6709\u5173\u8be6\u7ec6\u7684axios\u4f7f\u7528\u65b9\u6cd5\uff0c\u8bf7\u53c2\u8003\u5176\u4ed6\u6587\u7ae0\u3002<\/p>\n
\u5728Rails\u4e2d\u63a5\u6536\u6570\u636e<\/h2>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cRails\u4e0d\u4f1a\u63a5\u6536\u6765\u81ea\u5176\u4ed6\u7aef\u53e3\u7684post\u8bf7\u6c42\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528rack-cors\u6765\u8fdb\u884c\u6388\u6743\u3002<\/p>\n
+ <\/span>gem<\/span> 'rack-cors'<\/span>\r\n<\/span><\/code><\/pre>\n
\u8bf7\u5728Gemfile\u4e2d\u6dfb\u52a0\u2191\u5e76\u6267\u884cbundle install\u3002
\n\u7136\u540e\u5728config\/initializers\u6587\u4ef6\u5939\u4e0b\u521b\u5efacors.rb\u6587\u4ef6\u3002
\n\u914d\u7f6e\u6587\u4ef6\u7684\u5185\u5bb9\u5e94\u8be5\u5982\u2193\u6240\u793a\u3002<\/p>\n
Rails<\/span>.<\/span>application<\/span>.<\/span>config<\/span>.<\/span>middleware<\/span>.<\/span>insert_before<\/span> 0<\/span>,<\/span> Rack<\/span>::<\/span>Cors<\/span> do<\/span>\r\n  allow<\/span> do<\/span>\r\n    origins<\/span> 'http:\/\/localhost:3001'<\/span>\r\n    resource<\/span> '*'<\/span>,<\/span>\r\n             headers: :any<\/span>,<\/span>\r\n             expose: <\/span>%w[access-token expiry token-type uid client]<\/span>,<\/span>\r\n             methods: <\/span>%i[get post put patch delete options head]<\/span>,<\/span>\r\n             credentials: <\/span>true<\/span>\r\n  end<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u539f\u70b9\u90e8\u5206\u662fRails\u4f7f\u7528\u7684\u7aef\u53e3\u90e8\u5206\u3002
\n\u9ed8\u8ba4\u662f3000\uff0c\u4f46\u662fReact\u8bbe\u7f6e\u4e3a3000\uff0c\u6240\u4ee5Rails\u662f3001\u3002
\n\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u4e5f\u662f\u76f8\u540c\u7684\uff0c\u5c06\u57df\u540d\u653e\u5165\u539f\u70b9\u3002
\n\u63a5\u4e0b\u6765\u5b89\u88c5carrierwave\u548cfog-aws\u3002<\/p>\n
  gem<\/span> 'rack-cors'<\/span>\r\n+ <\/span>gem<\/span> 'carrierwave'<\/span>\r\n<\/span>+ <\/span>gem<\/span> 'fog-aws'<\/span>\r\n<\/span><\/code><\/pre>\n
Carrierwave\u662f\u4e00\u4e2a\u65b9\u4fbf\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5904\u7406\u4e0a\u4f20\u3001\u4e0b\u8f7d\u7b49\u64cd\u4f5c\u3002
\n\u8fd0\u884c”bundle exec rails g uploader File”\u547d\u4ee4\uff0c\u521b\u5efaapp\/uploaders\/file_uploader.rb\u6587\u4ef6\u3002<\/p>\n
class<\/span> FileUploader<\/span> <<\/span> CarrierWave<\/span>::<\/span>Uploader<\/span>::<\/span>Base<\/span>\r\n  # Include RMagick or MiniMagick support:<\/span>\r\n  # include CarrierWave::RMagick<\/span>\r\n  # include CarrierWave::MiniMagick<\/span>\r\n  # Choose what kind of storage to use for this uploader:<\/span>\r\n  # if Rails.env.production?<\/span>\r\n  #   storage :fog<\/span>\r\n  # else<\/span>\r\n  #   storage :file<\/span>\r\n  # end<\/span>\r\n  if<\/span> Rails<\/span>.<\/span>env<\/span>.<\/span>development?<\/span>\r\n    storage<\/span> :file<\/span>\r\n  else<\/span>\r\n    storage<\/span> :fog<\/span>\r\n  end<\/span>\r\n  # Override the directory where uploaded files will be stored.<\/span>\r\n  # This is a sensible default for uploaders that are meant to be mounted:<\/span>\r\n  def<\/span> store_dir<\/span>\r\n    \"uploads\/<\/span>#{<\/span>model<\/span>.<\/span>class<\/span>.<\/span>to_s<\/span>.<\/span>underscore<\/span>}<\/span>\/<\/span>#{<\/span>mounted_as<\/span>}<\/span>\/<\/span>#{<\/span>model<\/span>.<\/span>id<\/span>}<\/span>\"<\/span>\r\n  end<\/span>\r\n  # Provide a default URL as a default if there hasn't been a file uploaded:<\/span>\r\n  # def default_url(*args)<\/span>\r\n  #   # For Rails 3.1+ asset pipeline compatibility:<\/span>\r\n  #   # ActionController::Base.helpers.asset_path(\"fallback\/\" + [version_name, \"default.png\"].compact.join('_'))<\/span>\r\n  #<\/span>\r\n  #   \"\/images\/fallback\/\" + [version_name, \"default.png\"].compact.join('_')<\/span>\r\n  # end<\/span>\r\n  # Process files as they are uploaded:<\/span>\r\n  # process scale: [200, 300]<\/span>\r\n  #<\/span>\r\n  # def scale(width, height)<\/span>\r\n  #   # do something<\/span>\r\n  # end<\/span>\r\n  # Create different versions of your uploaded files:<\/span>\r\n  # version :thumb do<\/span>\r\n  #   process resize_to_fit: [50, 50]<\/span>\r\n  # end<\/span>\r\n  # Add a white list of extensions which are allowed to be uploaded.<\/span>\r\n  # For images you might use something like this:<\/span>\r\n  # def extension_whitelist<\/span>\r\n  #   %w(jpg jpeg gif png)<\/span>\r\n  # end<\/span>\r\n  # Override the filename of the uploaded files:<\/span>\r\n  # Avoid using model.id or version_name here, see uploader\/store.rb for details.<\/span>\r\n  # def filename<\/span>\r\n  #   \"something.jpg\" if original_filename<\/span>\r\n  # end<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u6211\u4f1a\u505a\u5f97\u50cf\u2191\u90a3\u6837\u7684\u611f\u89c9\u3002<\/p>\n
if<\/span> Rails<\/span>.<\/span>env<\/span>.<\/span>development?<\/span>\r\n  storage<\/span> :file<\/span>\r\nelse<\/span>\r\n  storage<\/span> :fog<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u5b58\u50a8\uff1a\u5f53\u4f7f\u7528\u6587\u4ef6\u7cfb\u7edf\uff08file\uff09\u65f6\uff0c\u4e0a\u4f20\u7684\u6587\u4ef6\u5c06\u4fdd\u5b58\u5728public\/uploads\u6587\u4ef6\u5939\u4e0b\u3002
\n\u5b58\u50a8\uff1a\u5f53\u4f7f\u7528\u4e91\u5b58\u50a8\uff08fog\uff09\u65f6\uff0c\u4f1a\u50a8\u5b58\u5728S3\u4e0a\uff0c\u501f\u52a9fog-aws\u5b9e\u73b0\u3002
\n\u4ee5\u4e0a\u662f\u8bbe\u7f6e\uff0c\u672c\u5730\u73af\u5883\u4e0b\u4fdd\u5b58\u5728public\/uploads\u6587\u4ef6\u5939\u4e0b\uff0c\u751f\u4ea7\u73af\u5883\u4e0b\u4fdd\u5b58\u5728S3\u4e0a\u3002
\n\u73af\u5883\u53d8\u91cf\u7684\u8bbe\u7f6e\u5982\u4e0b\u3002
\n\u653e\u5728Rails\u6839\u76ee\u5f55\u4e0b\u3002<\/p>\n
RAILS_ENV = \"development\"\r\n<\/code><\/pre>\n
\u5982\u679c\u662f\u6b63\u5f0f\u7684\u8bdd\uff0c\u53ea\u9700\u8981\u628a\u8fd9\u4e2a\u6539\u4e3aProduction\u3002
\n\u4e3a\u4e86\u4fdd\u5b58\u5230S3\uff0c\u6211\u4eec\u5c06\u5728config\/initializers\u6587\u4ef6\u5939\u4e0b\u521b\u5efa\u4e00\u4e2acarrierwave.rb\u6587\u4ef6\u3002<\/p>\n
require<\/span> 'carrierwave\/storage\/abstract'<\/span>\r\nrequire<\/span> 'carrierwave\/storage\/file'<\/span>\r\nrequire<\/span> 'carrierwave\/storage\/fog'<\/span>\r\nCarrierWave<\/span>.<\/span>configure<\/span> do<\/span> |<\/span>config<\/span>|<\/span>\r\n    config<\/span>.<\/span>storage<\/span> :fog<\/span>\r\n    config<\/span>.<\/span>fog_provider<\/span> =<\/span> 'fog\/aws'<\/span>\r\n    config<\/span>.<\/span>fog_directory<\/span>  =<\/span> '\u30d0\u30b1\u30c3\u30c8\u540d'<\/span> # \u4f5c\u6210\u3057\u305f\u30d0\u30b1\u30c3\u30c8\u540d\u3092\u8a18\u8ff0<\/span>\r\n    config<\/span>.<\/span>fog_credentials<\/span> =<\/span> {<\/span>\r\n      provider: <\/span>'AWS'<\/span>,<\/span>\r\n      aws_access_key_id: <\/span>ENV<\/span>[<\/span>'AWS_ACCESS_KEY_ID'<\/span>],<\/span> # \u74b0\u5883\u5909\u6570<\/span>\r\n      aws_secret_access_key: <\/span>ENV<\/span>[<\/span>'AWS_SECRET_ACCESS_KEY'<\/span>],<\/span> # \u74b0\u5883\u5909\u6570<\/span>\r\n      region: <\/span>'ap-northeast-1'<\/span>,<\/span>   # \u30a2\u30b8\u30a2\u30d1\u30b7\u30d5\u30a3\u30c3\u30af(\u6771\u4eac)\u3092\u9078\u629e\u3057\u305f\u5834\u5408<\/span>\r\n      path_style: <\/span>true<\/span>\r\n    }<\/span>\r\nend<\/span> \r\n<\/code><\/pre>\n
\u8bf7\u53c2\u8003\u3010Rails\u3011CarrierWave\u6559\u7a0b\uff0c\u6309\u7167\u4e0a\u8ff0\u7684\u8bbe\u7f6e\u8fdb\u884c\u914d\u7f6e\u3002
\n\u5728\u8fc1\u79fb\u4e2d\uff0c\u6211\u4f1a\u521b\u5efaUser\u8868\u548cFile\u5217\u3002<\/p>\n
rails g migration User\r\n<\/code><\/pre>\n
class<\/span> User<\/span> <<\/span> ActiveRecord<\/span>::<\/span>Migration<\/span>[<\/span>7.0<\/span>]<\/span>\r\n  def<\/span> change<\/span>\r\n    create_table<\/span> :users<\/span> do<\/span> |<\/span>t<\/span>|<\/span>\r\n      t<\/span>.<\/span>string<\/span> 'file'<\/span>\r\n      t<\/span>.<\/span>timestamps<\/span>\r\n    end<\/span>\r\n  end<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
rails db:migrate\r\n<\/code><\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6a21\u578b\uff0c\u5e76\u5c06\u5176\u4e0eCarrierWave\u8fdb\u884c\u5173\u8054\u3002<\/p>\n
rails g model User\r\n<\/code><\/pre>\n
class<\/span> User<\/span> <<\/span> ApplicationRecord<\/span>\r\n  mount_uploader<\/span> :file<\/span>,<\/span> FileUploader<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u5c06\u4e0efile_uploader.rb\u6587\u4ef6\u76f8\u5173\u8054\u3002
\n\u63a5\u4e0b\u6765\u8bbe\u7f6e\u8def\u7531\u3002<\/p>\n
Rails<\/span>.<\/span>application<\/span>.<\/span>routes<\/span>.<\/span>draw<\/span> do<\/span>\r\n  post<\/span> '\/post_file'<\/span> =><\/span> 'users#post_file'<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
\u521b\u5efa\u63a7\u5236\u5668\u3002<\/p>\n
rails g controller user\r\n<\/code><\/pre>\n
class<\/span> UsersController<\/span> <<\/span> ApplicationController<\/span>\r\n  def<\/span> post_file<\/span>\r\n    User<\/span>.<\/span>create<\/span>(<\/span>file: <\/span>params<\/span>[<\/span>:user<\/span>][<\/span>:file<\/span>])<\/span>\r\n    render<\/span> status: <\/span>200<\/span>\r\n  end<\/span> \r\nend<\/span>\r\n<\/code><\/pre>\n
\u5f53\u4f7f\u7528axios\u8fdb\u884c.post(“http:\/\/localhost:3000\/post_file\/”, data)\u8bf7\u6c42\u65f6\uff0cuser_controller\u4f1a\u8c03\u7528post_file\u52a8\u4f5c\uff0c\u5c06file\u53c2\u6570\u4fdd\u5b58\u5230file\u5217\u4e2d\uff0c\u5e76\u521b\u5efa\u7528\u6237\u3002
\nfile\u5217\u4e0eCarrierWave\u76f8\u5173\u8054\uff0c\u5b83\u4f1a\u518d\u6b21\u5c06\u6587\u4ef6\u683c\u5f0f\u8f6c\u6362\uff0c\u5e76\u6839\u636ecarrierwave.rb\u7684\u8bbe\u7f6e\u4fdd\u5b58\u5230\u6307\u5b9a\u4f4d\u7f6e\u3002
\n\u5982\u679c\u6709\u4efb\u4f55\u9519\u8bef\uff0c\u8bf7\u5728\u8bc4\u8bba\u680f\u544a\u77e5\u3002
\n\u4ee5\u4e0a\u4e3a\u8349\u7387\u7684\u89e3\u91ca\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f60\u597d\uff0c\u6211\u662f\u5c0f\u83dc\u4e00\u679a\u3002 \u6700\u8fd1\u6211\u5c1d\u8bd5\u4f7f\u7528React\u6765\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u4e0a\u4f20\u529f\u80fd\uff0c\u4f46\u610f\u5916\u5730\u9047\u5230\u4e86\u4e00\u4e9b\u56f0\u6270\uff0c\u6240\u4ee5\u6211\u5199\u4e86\u4e00\u7bc7\u6587 […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38590","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u901a\u8fc7React\u7ecf\u7531Rails\u4e0a\u4f20\u6587\u4ef6\u5230S3\u7684\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u901a\u8fc7react\u7ecf\u7531rails\u4e0a\u4f20\u6587\u4ef6\u5230s3\u7684\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u901a\u8fc7React\u7ecf\u7531Rails\u4e0a\u4f20\u6587\u4ef6\u5230S3\u7684\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"\u4f60\u597d\uff0c\u6211\u662f\u5c0f\u83dc\u4e00\u679a\u3002 \u6700\u8fd1\u6211\u5c1d\u8bd5\u4f7f\u7528React\u6765\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u4e0a\u4f20\u529f\u80fd\uff0c\u4f46\u610f\u5916\u5730\u9047\u5230\u4e86\u4e00\u4e9b\u56f0\u6270\uff0c\u6240\u4ee5\u6211\u5199\u4e86\u4e00\u7bc7\u6587 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u901a\u8fc7react\u7ecf\u7531rails\u4e0a\u4f20\u6587\u4ef6\u5230s3\u7684\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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