如果直接在controller里面使用中文,像下面这样:
代码语言:javascript复制-module(snooker_main_controller, [Req]).
-compile(export_all).
index('GET', []) ->
{ok, [{greeting, "中文测试!"}]}.
会报类似下面的错误
代码语言:javascript复制http process <0.5215.0> has died with reason: {badarg,
[{erlang,list_to_binary,
[[<<"<!DOCTYPE html>n<html lang="en">n<head>n<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />n<title>">>,
<<230,150,175,232,175,186,
229,174,162,32,45,32,228,
184,128,232,181,183,230,
150,175,232,175,186,229,
174,162>>,
原因在于erlang的源文件都是只支持latin字符集的,只要是*erl的文件,都是这样,所以出现unicode字符的话,都会类似的错误。所有的unicode字符都应该由变量传递或者进行encode
解决方法: 修改controller源文件
代码语言:javascript复制-module(snooker_main_controller, [Req]).
-compile(export_all).
index('GET', []) ->
{ok, [{greeting, unicode:characters_to_binary("中文测试!", utf8, utf8)}]}.
这样就可以了。
unicode:characters_to_binary的用法:
代码语言:javascript复制characters_to_binary(Data, InEncoding, OutEncoding) -> Result
Types:
Data = latin1_chardata() | chardata() | external_chardata()
InEncoding = OutEncoding = encoding()
Result = binary()
| {error, binary(), RestData}
| {incomplete, binary(), binary()}
RestData = latin1_chardata() | chardata() | external_chardata()
- Previous 在Ubuntu Oneiric下从源代码安装 Erlang R15B
- Next 如何在Erlang的List中移除element?