More Handlers Solution - Web DevelopmentYouTube↗  IA↗(long shot)
Education  2.4K views 10 likes 0 dislikes   22 Apr 2012
Udacity 651K subscribers United States YouTube↗


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正解はHTTPリクエストが表示されるでした
correct answer is you should be looking at the HTTP request
言葉を入力し送信ボタンをクリックしてみましょう
I'll try it myself okay we have our form I click Submit
表示されました
and boom here we are this is actually
これがHTTPリクエストです
what we're looking at is the HTTP
ではリクエストの内容について詳しく見ていきましょう
request well look at the code in a sec to remind ourselves how this happened
最初のレッスンで話した
but you remember from our first lesson
HTTPリクエストを覚えてますか？
when we talked about HTTP requests and
ここがリクエストラインです
how they look well here's our request
GETのあとにURLがあり
line get and then our URL slash test
そしてqの値として入力した言葉が入っています
form and then Q equals the text we typed
ヘッダを見てみましょう
in the in the field you can see a couple
この部分にあるAcceptでは このサイトで使われる言語と
more headers except and what what languages we are expecting to receive
文字タイプの設定を確認できます
what character sets are okay you can see
ここはHostの内容です
the host header we're familiar with that
その下にRefererヘッダがあります
one you can see the referer header refer
このヘッダはリクエストが 送られたURLを参照します
headers interesting this refers to the URL that sent that sent this request so
この場合のURLはlocalhost:8080/となります 今私が見ているURLは/testformです
the URL of our form is localhost 8080 slash and the URL run right now is you
このヘッダはリクエストの送信元を確認できるのです
know slash test form but this header is helpful for for telling the server where
Refererのスペルが間違っていますね
the request came from you notice that
最初にHTTPスペックを登録した際に
refer is misspelled here that's because in the original HTTP spec the word refer
Referrerを間違えて Refererと登録してしまったのです 互換性の関係で変更することができず
was spelled wrong it normally has to ours but it's lived on for backwards
20年近く修正されていません
compatibility reasons for nearly 20
実はこのような間違いは
years now and this is actually
HTTPやWebではよく見られることです
symptomatic of how a lot of things in an HTTP or on the web are which is you know
20年前に誰かが決めたことが
somebody made a decision you know 20
間違っていても未だに使用されているのです
years ago that still haunts us today and
時間をかけて有機的に成長すると
it's not necessarily a bad thing it's
このような間違いが起きることは仕方がないのです
just a site effective of you know when things grow organically over time
次のヘッダに移りましょう
another header we've talked about our
User-Agentヘッダでは Chromeを使用していることが確認できます
user agent in this case I'm using I'm using Chrome you can see that here and a
Mac OS Xのバージョン情報もでています
lot amidst a bunch of version
ではコードを見直してみましょう
information on Mac OS X looking at our code here's what we did we set the
コンテンツタイプを指定しました
content type to text plain if we hadn't
ここにtext/plainを入れないと ブラウザはHTMLとして読み込みます
done that the the response we were
これをHTMLとして読み込むと
looking at in the HTML or in the browser
ブラウザの表示はおかしくなります
would have looked weird because the browser would have assumed it was HTML
HTTPリクエストを出すには
and a lot of that text wouldn't have
text/plainと指定してください
shown up so we set at the plain because
ここではオブジェクトそのものに リクエストを入れることで
I knew what we were going to do then instead of writing text or writing out
テキストやqの値で書き出していません
our Q parameter we actually wrote off
HTTPのように表示がされる理由は
this request object itself which is the
Pythonのオブジェクトがリクエストを表すためです これは偶然起こることではないのです
Python object that represents the quest but conveniently it prints out very much like HTTP looks which is not the coincidence so it's a handy little
Webアプリケーションを使用していて
tool though when you're when you're
コードの修正やデバッグする必要がある際は
writing web applications and debugging you want to see you know where something
この方法でHTTPリクエストを確認できます
broke or you know what's going on you
では元々あった2行を戻し
can just print out the request and see so let's let's replace these two lines
新しいことを始めましょう
again back to the way they were and move
追加した行はあとから使うので
on to something else I'm just going to
コメントアウトしておきます
comment these lines out however because
ファイルが元どおりになったので次に進みましょう
we're going to need them for later so this is how our file was before let's move on to a new section
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