springboot多語言國際化

實現localresolve介面，定義messageservice bean

/** * 自定義messages服務，指定國際化配置路徑

* @return

*/@bean

(name =

"messagesource"

)public resourcebundlemessagesource getmessageresource()

}

@component

public
class
multilanguageutils
/** * 獲取國際化messages
* @param key
* @return
*/public
static string getmessage
(string key)
/** * 獲取國際化messages
* @param key messages.properties的key
* @param args messages的佔位符{}
* @return
*/public
static string getmessage
(string key, object[
] args)
}

核心就是messagesource.getmessage(key, args, key, localecontextholder.getlocale())

local通過localcontext獲取,localcontext又由localecontexthold獲取

frameworkservlet

localecontext localecontext = buildlocalecontext(request);

dispatcherservlet

重寫buildlocalecontext(request)

public

class
dispatcherservlet
else
}}

public

class
localecontextholder
public
static localecontext getlocalecontext()
return localecontext;
}public
static locale getlocale
(@nullable localecontext localecontext)
}return
(defaultlocale != null ? defaultlocale : locale.
getdefault()
);}}

在沒有配置messagesource bean時，預設生成乙個messagesource bean

@configuration

(proxybeanmethods =
false
)// public static final string message_source_bean_name = "messagesource";
@conditionalo****singbean
@autoconfigureorder
(ordered.highest_precedence)
@conditional
(resourcebundlecondition.
class
)@enableconfigurationproperties
public
class
messagesourceautoconfiguration
;@bean
@configurationproperties
(prefix =
"spring.messages"
)public messagesourceproperties messagesourceproperties()
@bean
public messagesource messagesource
(messagesourceproperties properties)
if(properties.
getencoding()
!= null)
messagesource.
setfallbacktosystemlocale
(properties.
isfallbacktosystemlocale()
);duration cacheduration = properties.
getcacheduration()
;if(cacheduration != null)
messagesource.
setalwaysusemessageformat
(properties.
isalwaysusemessageformat()
);messagesource.
setusecodeasdefaultmessage
(properties.
isusecodeasdefaultmessage()
);return messagesource;
}protected
static
class
resourcebundlecondition
extends
springbootcondition
return outcome;
}private conditionoutcome getmatchoutcomeforbasename
(conditioncontext context, string basename)}}
return conditionoutcome.
nomatch
(message.
didnotfind
("bundle with basename "
+ basename)
.atall()
);}private resource[
]getresources
(classloader classloader, string name)
catch
(exception ex)}}
}public
class
messagesourceproperties

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