SSH中tomcat下中文名称图片不显示的问题

ゞ浴缸里的玫瑰 2022-06-08 23:45 140阅读 0赞

使用创建过滤器的方式解决

import java.io.IOException;
    import java.net.URLDecoder;
     
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletRequest;
     
    public class EncodingFilter implements Filter{
     
        String encoding=null;
         FilterConfig filterConfig=null;
         //销毁方法
         public void destroy() {
          // TODO Auto-generated method stub
          this.encoding=null;
          this.filterConfig=null;
         }
          
         //过滤处理方法
         public void doFilter(ServletRequest request, ServletResponse response,
           FilterChain chain) throws IOException, ServletException {
          // TODO Auto-generated method stub
           HttpServletRequest req = (HttpServletRequest) request;
           String uri = req.getRequestURI();
           String ch = URLDecoder.decode(uri, encoding);
           if(uri.equals(ch)) {
               chain.doFilter(req, response);
               return;
           }
           ch = ch.substring(req.getContextPath().length());
           filterConfig.getServletContext().getRequestDispatcher(ch).forward(req, response);
         }
     
         //初始化方法
         public void init(FilterConfig filterConfig) throws ServletException {
           
          this.filterConfig=filterConfig;
          this.encoding=filterConfig.getInitParameter("encoding");
         }
     
    }

web.xml中配置

<filter>
     <filter-name>encodingFilter</filter-name>
     <filter-class>com.hdsx.gispf.filter.EncodingFilter</filter-class>
     <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
     </init-param>
    </filter>
    
    <filter-mapping>
     <filter-name>encodingFilter</filter-name>
     <url-pattern>/*</url-pattern>
    </filter-mapping>