java - 在spring MVC中传递非英文字符参数

Question

我在 springMVC 中传递参数时遇到问题。

@RequestMapping(value = "/", method = RequestMethod.POST)
    public String homePost(Model model, HttpServletRequest request) {
        StringBuilder redirect = new StringBuilder();
        String para = request.getParameter("keyword");

        redirect.append("redirect:/search?" + "cat=0&job="+ para);
        logger.info("Page called: SEARCH; Called parameter: KEYWORD: " + redirect.toString());

        return redirect.toString();
}

在我的控制台中，我可以看到:

Page called: SEARCH; Called parameter: KEYWORD: redirect:/search?cat=0&job=lol лол lol

但是我的网址是

http://localhost:8088/search?cat=0&job=lol%20%20%20%20%20lol

我将所有编码设置为“UTF-8”，并且我尝试使用西里尔字母从列表中进行搜索，但它一直将西里尔字母转换为空格。我可以使用拉丁字母进行搜索。如果我使用西里尔字母手动写入 URL，我也可以搜索。在控制台中，它还显示

bind => [%lol lol%]

谢谢。

P.S 即使我没有使用StringBuilder，我也有同样的问题。P.S.S 我的 web.xml 有

<filter>
    <filter-name>encodingFilter</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>
    <init-param>
        <param-name>forceEncoding</param-name>
        <param-value>true</param-value>
    </init-param>
 </filter>
 <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
 </filter-mapping>

Answer 1

感谢您的回答。我解决了这个问题，如果有人感兴趣的话。@Alex 的链接非常有用。

@RequestMapping(value = "/", method = RequestMethod.POST)
    public String homePost(Model model, HttpServletRequest request) throws UnsupportedEncodingException {
        StringBuilder redirect = new StringBuilder();
        String para = request.getParameter("keyword");

        redirect.append("redirect:/search/" + URLEncoder.encode(para, "UTF-8"));
        logger.info("Page called: SEARCH; Called parameter: KEYWORD: " + redirect.toString());

        return redirect.toString();
    }

获取方法是:

@RequestMapping(value="/search/{keyword}", method = RequestMethod.GET)
    public String job(Model model,@PathVariable String keyword) throws UnsupportedEncodingException {

        String job = URLDecoder.decode(keyword);
        return null;
}