我在GET请求中使用spring mvc和特殊字符时遇到问题。请考虑以下方法:
@RequestMapping("/update")
public Object testMethod(@RequestParam String name) throws IOException {
}
例如,我向其发送名称包含“ä”(德语为umlaut)的GET请求。由于浏览器将“ä”映射到
%C3%A4
,因此导致spring收到“ä”。因此,如何获得 Controller 的正确编码字符串?
谢谢你的帮助!
最佳答案
那这个呢?能帮上忙吗?
在您的 web.xml 中:
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>com.example.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<servlet-name>dispatcher</servlet-name>
</filter-mapping>
com.example.CharacterEncodingFilter :
public class CharacterEncodingFilter implements Filter {
protected String encoding;
public void init(FilterConfig filterConfig) throws ServletException {
encoding = filterConfig.getInitParameter("encoding");
}
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
request.setCharacterEncoding(encoding);
filterChain.doFilter(servletRequest, servletResponse);
}
public void destroy() {
encoding = null;
}
}