Tapestry：字符编码问题 [英] Tapestry: character encoding issue

问题描述

我有一个Tapestry应用程序，从表单中检索数据，将其写入数据库，然后显示结果。只要没有使用特殊字符（Ä，Ö，Ü，ß，...），它都可以正常工作。

例如文本

 TestäöüßÄÖÜ€$ 
  

将会导致

 TestäöüÃÃÃ¥
  
 
 
 
我猜这个问题与错误的字符编码设置有关。
 
 
 
 Tapestry java class：
  @Component（parameters = {clientValidation = false}）
私人表格; 
 
 @Component（parameters = {value = someDTO.name}）
 private TextField someNameField; 
  
 Tapestry模板：
 < t：form t：id =form> 
 ... 
< t：textfield t：id =someNameField/> 
 ... 
< / t：form> 
  
我在几个地方检查了我的编码设置：
 
 
 HTML来源：
 
 
 
 
 
 < meta http-equiv =Content-Typecontent =text / html; charset = utf-8> 
  
 
 
 
 
 
 
 Tapestry设置（这应该是默认的） 
  tapestry.charset = UTF-8 
  
 
 
 
 
 Firefox说（工具>页面信息：编码）：UTF-8。
 
 
 
 
底层数据库Oracle）也使用UTF-8：
  character_set_system utf8 
  
 
 
 
然后我检查了POST请求的标题，有两件事情引起了我的注意：
 
 
 
标题中没有指定内容类型。我会期望这样：
  Content-Type：application / x-www-form-urlencoded; charset = UTF-8 
  
 
 
 
 
空格以+而不是％20编码。 > 
 
 
我也尝试过以下操作：
  @Component（parameters = {clientValidation = false，enctype ='application / x-www-form-urlencoded; charset = UTF-8'}）
私人表格; 
  
和
私人表格; 
  
但两个都没有成功（我正在寻找一个一般的解决方案，而不是解决方法）。
 
 
 
有趣的是，此提案适用于一些特殊字符（如ä，ö，ü，ß等），但我不想使用ISO-8859-1。如何设置Tapestry用于窗体的编码为UTF-8？ 
  EDIT ：我做了一个没有数据库的测试，问题仍然存在。 ，所以它不是关于一个错误的编码设置在db端。
解决方案
这确实是我的服务器配置错误。下面的添加到我的web.xml解决了它（当然这也应该与非Spring过滤器工作）。
 < filter> 
< filter-name> charsetFilter< / filter-name> 
< filter-class> org.springframework.web.filter.CharacterEncodingFilter< / filter-class> 
< init-param> 
< param-name> encoding< / param-name> 
< param-value> UTF-8< / param-value> 
< / init-param> 
< / filter> 
 
< filter-mapping> 
< filter-name> charsetFilter< / filter-name> 
< url-pattern> / *< / url-pattern> 
< / filter-mapping> 
  
 
I have a Tapestry application, that retrieves data from a form, writes it to a database and then displays the result. It all works well as long as no special characters (Ä, Ö, Ü, ß, € ...) are used. 

E.g. the text
TestäöüßÄÖÜ€$ 
will result in 
TestäöüÃÃÃÃâ¬$
I guess the problem has something to do with a wrong character encoding setting.

Tapestry java class:
@Component(parameters = {"clientValidation=false"})
private Form form;

@Component(parameters = {"value=someDTO.name"})
private TextField someNameField;
Tapestry Template:
<t:form t:id="form">
    ...
    <t:textfield t:id="someNameField"/>
    ...
</t:form>
I checked my encoding settings at several places:

HTML source: 


    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">



Tapestry settings (this should be the default anyway):
tapestry.charset=UTF-8

Firefox says (Tools>Page Info: Encoding): UTF-8.
The underlying database (Oracle) also uses UTF-8:
character_set_system    utf8

Then I examined the header of the POST request and two things caught my eye:

There is no content type specified in the header. I would expect something like this:
Content-Type: application/x-www-form-urlencoded; charset=UTF-8

Spaces are encoded with + instead of %20.
I also tried the following:
@Component(parameters = {"clientValidation=false", "enctype='application/x-www-form-urlencoded; charset=UTF-8'"})
private Form form;
and
@Component(parameters = {"clientValidation=false", "enctype='application/x-www-form-urlencoded; charset=UTF-8'", "accept-charset='utf-8'"})
private Form form;
but both with no success (and I'm looking for a general solution not a workaround).

Interestingly this proposal works for some special chars (like ä, ö, ü, ß and so on), but I do not want to use ISO-8859-1. How can I set the encoding Tapestry uses for forms to UTF-8? What am I missing or is there a completely different reason for my problem?

EDIT: I made a test without the database and the problem remains, so it's not about a wrong encoding setting on the db-side.
解决方案
It was indeed a misconfiguration of my server. The following addition to my web.xml solved it (of course this should also work with a non-Spring filter).
<filter>
    <filter-name>charsetFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>charsetFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>


                        
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