偏航西里尔的产出

Question

你能帮帮我吗？ 在网页上，我需要打印这个：

团队1 vs团队2

团队3 vs团队4

团队5 vs团队6

团队7 vs团队8

我的代码：

<erl>
first_team_write(Head) ->
  {ehtml,
    %[{text,[], f("~p vs ", [Head])}]}.        % try
    [{p,[], [Val, " vs "]} || Val <- [Head]]}. % different
second_team_write(Head) ->
  {ehtml,
    %[{text,[], f("~p", Head)},                % ways
    [{p,[], [Head]},                           %
    {p,[], []}]}.

write_teams([], Num) ->
  Num;

write_teams([Head|Tail], Num) ->
if
  (Num rem 2) /= 0 ->
    first_team_write([Head]),
    io:format("~p vs ", [Head]),  %% debug
    write_teams(Tail, Num+1);
  (Num rem 2) == 0 ->
    second_team_write(Head),
    io:format("~p~n", [Head]),  %% debug
    write_teams(Tail, Num+1)
end.


out(A) ->
  application:start(odbc), 
  ConnString = 
  %"Driver={MySQL ODBC 5.2 ANSI Driver};" ++
  "Driver={MySQL ODBC 5.2 Unicode Driver};" ++
  "Server=127.0.0.1;Database=erandom;" ++ 
      "User=root;Password=1q2w3e;" ++ 
      "Option=3;" ++
      "CharSet=utf8;",
      {ok, Conn} = odbc:connect(ConnString, []), 
      % Cyrillic results
      Results = odbc:sql_query(Conn, "select team_name from teams where id in (select team_id from leagues where league_name = 'First League')"), 
      %{selected, [Selector], Results} = odbc:sql_query(Conn, "select team_name from teams where team_name in ('Sporting', 'Old School')"),
      %{selected, [Selector], Results} = odbc:sql_query(Conn, "select team_name from teams where id in (select team_id from leagues where league_name = 'First League')"),
      odbc:disconnect(Conn),
      application:stop(odbc),
      TeamList = element(3, Results),
      {ehtml,
        [{h4,[], "Пары этого тура:"},
        {hr},
          write_teams(TeamList,1)
      ]}.

</erl>

.

结果：我的网页是空白的。 我究竟做错了什么？ 我在调试控制台中看到：

1>
=INFO REPORT==== 25-Feb-2014::23:08:27 ===
    application: odbc
    exited: stopped
type: temporary
1> {[208,159,209,128,208,190,208,188,208,181,209,130,208,181,208,185]} vs 1> {[208,161,208,145,208,162]}
1> {[208,158,208,187,208,184,208,188,208,191]} vs 1> {[208,159,209,128,208,190,208,179,209,128,208,181,209,129,209,129]}
1> {[208,164,208,154,32,208,148,209,142,208,182,208,184,208,189,208,176]} vs 1> {"Old school"}
1> {[208,161,208,191,208,176,209,128,209,130,208,176,208,186]} vs 1> {[208,160,208,190,209,130,208,190,209,128]}
1> {"Sporting"} vs 1> {[208,161,208,190,208,191,209,128,208,190,209,130,208,184,208,178,208,187,208,  181,208,189,208,184,208,181]}

.

Answer 1

我相信您在HTTP响应中没有正确指定Charset。首先，由于您的.yaws页面中嵌入了西里尔文本，因此确保您的编辑器将其保存为UTF-8。如何完成这一点取决于您的开发环境和编辑，但我使用Emacs，因此我刚刚将以下HTML评论添加到.yaws文件的顶部：

<!-- -*- coding: utf-8 -*- -->

.

下一个问题是在响应的HTTP标题中正确设置Charset。为此，请在您的回复中适当地设置Content-Type标题：

[{header, {content_type, erase}},
 {header, {content_type, "text/html; charset=UTF-8"}},
 {ehtml,
  [{h4,[], "Пары этого тура:"},
   {hr},
      write_teams(TeamList,1)
  ]}].

.

请注意，整个返回类型是erlang列表。列表中的第一个元组删除了默认情况下yaws应用于。yaws页面的默认生成Content-Type标题。列表中的第二个元组指定了包括UTF-8 Charset的生成的正确值。列表的第三个元素是您在上面的问题声明中指定的相同的世生古代替代代码元组。

btw您可以通过运行yaws Content-Type脚本来构建带有UTF-8的偏航，如下所示：

configure --with-defaultcharset=UTF-8

.

之后，像往常一样使用ehtml重建偏航。如果您这样做，则不再需要设置用于设置回复的configure的元组，因为UTF-8将是所有回复的默认Charset。