java 如何将 struts2 中的字符集更改为 utf-8
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How to change charset in struts2 to utf-8
提问by Aleksei Bulgak
Hi I have testfield in which I want to put test not in English(for example into Russian)
but in my action class I get instead of text only ?????????.
I trying to write simple filter which described Parameters charset conversion in struts2
嗨，我有测试字段，我想在其中测试不是英语（例如俄语），但在我的动作课中我得到而不是仅文本?????????。我试图写一个简单的过滤器，它描述 了 struts2 中的参数字符集转换
but it still do not work.. can somebody help me
但它仍然不起作用..有人可以帮我吗
updateI have this
更新我有这个
<s:textfield key="index.login" name="login" />
I want to put into it test in Russian language and then send it to my action.but in my action class I get instead of text only ?????????.to fix this problem I need to change charset into utf8 instead of win1251.
我想用俄语对其进行测试，然后将其发送到我的 action.but 在我的 action 类中，我得到的不是文本?????????。要解决这个问题，我需要将字符集更改为 utf8 而不是 win1251。
回答by Paulius Matulionis
Create a filter:
创建过滤器：
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class CharacterEncodingFilter implements Filter {
@Override
public void init(FilterConfig filterConfig)
throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
servletRequest.setCharacterEncoding("UTF-8");
servletResponse.setContentType("text/html; charset=UTF-8");
filterChain.doFilter(servletRequest, servletResponse);
}
@Override
public void destroy() {
}
}
Declare it into your web.xml:
将其声明到您的 web.xml 中：
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>your.package.filter.CharacterEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
And your're good to go. Also make sure that your every JSPpage contains: <%@ page contentType="text/html;charset=UTF-8" language="java" %>. If your application is running on tomcat, make sure your add URIEncoding="UTF-8"attribute to your Connectorelement.
你可以走了。还要确保您的每一JSP页都包含：<%@ page contentType="text/html;charset=UTF-8" language="java" %>。如果您的应用程序在 tomcat 上运行，请确保您URIEncoding="UTF-8"的Connector元素的add属性。
回答by Christian
If you need to force jsp to UTF-8 you can write the following in web.xml:
如果需要强制 jsp 为 UTF-8，可以在 web.xml 中编写以下内容：
<jsp-config>
<jsp-property-group >
<url-pattern>*.jsp</url-pattern>
<page-encoding>UTF-8</page-encoding>
</jsp-property-group>
</jsp-config>
回答by exoddus
(cannot comment on previus response)
（无法评论之前的回复）
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<page-encoding>UTF-8</page-encoding>
</jsp-property-group>
Ok for web.xml > 2.3
好的 web.xml > 2.3
I'm not sure if in 2012 it doesn't exists yet, but take care that this element is only available for web.xml > 2.4 (that element doesn't exist in 2.3 http://java.sun.com/dtd/web-app_2_3.dtd).
我不确定 2012 年它是否还不存在，但请注意该元素仅适用于 web.xml > 2.4（该元素在 2.3 http://java.sun.com/dtd中不存在）/web-app_2_3.dtd）。
