web中显示中文名称的图片，可以这样配置filter

com.cy.filter.UrlFilter:

package com.cy.filter;

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 UrlFilter implements Filter{
    public final static String DEFAULT_URI_ENCODE = "UTF-8";
    private FilterConfig config = null;
    private String encode = null;
    
    @Override
    public void init(FilterConfig config) throws ServletException {
        this.config = config;
        this.encode = config.getInitParameter("DEFAULT_URI_ENCODE");
        if(this.encode == null){
            this.encode = DEFAULT_URI_ENCODE;
        }
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) req;
        String uri = request.getRequestURI();
        String ch = URLDecoder.decode(uri, encode);
        if(uri.equals(ch)){                                //如果url中没有中文的话
            chain.doFilter(req, res);
            return;
        }
        
        //url中如果含有中文
        ch = ch.substring(request.getContextPath().length());
        config.getServletContext().getRequestDispatcher(ch).forward(req, res);
    }

    @Override
    public void destroy() {
        this.config = null;
    }

}

web.xml中的配置：

<!-- 中文路径 -->
    <filter>
        <filter-name>urlFilter</filter-name>
        <filter-class>com.cy.filter.UrlFilter</filter-class>
        <init-param>
            <param-name>DEFAULT_URI_ENCODE</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>urlFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

index.jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="resources/js/jquery.min.js"></script>
<title>index</title>
<style type="text/css">
</style>
</head>
<body>
    <p>hello index</p>
    <div>
        <img src="resources/images/觅心射手.png" />
    </div>
    
</body>
<script type="text/javascript">

</script>
</html>

访问index首页，可以正确的看到中文的图片。

posted on 2018-03-13 22:08 有点懒惰的大青年阅读(349) 评论(0) 编辑收藏举报