SSH设置字符集过滤器解决中文乱码问题

浅浅的花香味﹌ 2022-05-14 04:03 284阅读 0赞

文章原文：[https://www.cnblogs.com/vincentExclusiveBlog/p/5351610.html][https_www.cnblogs.com_vincentExclusiveBlog_p_5351610.html]

**web.xml配置**（必须放在struts2配置之前）：

<filter>
    <filter-name>CharEncodingFilter</filter-name>
    <filter-class>com.crm.tools.CharEncodingFilter</filter-class>
    <init-param>
    <param-name>encoding</param-name> 
    <param-value>UTF-8</param-value> 
    </init-param>
    </filter>
    <filter-mapping>
    <filter-name>CharEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    
    
    <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>

**自定义CharEncodingFilter类实现Filter接口：**

package com.crm.tools;
    
    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;
    import javax.servlet.annotation.WebFilter;
    
    /**
     * 字符过滤器
     */
    
    @WebFilter("/CharEncodingFilter")
    public class CharEncodingFilter implements Filter {
    
    　　//设置为UTF-8
        public void doFilter(ServletRequest request, ServletResponse response,
    
            FilterChain chain) throws IOException, ServletException {
            request.setCharacterEncoding("UTF-8");
            response.setCharacterEncoding("UTF-8");
            chain.doFilter(request, response);
    
        }
    
    　　//初始化
        public void init(FilterConfig filterConfig) throws ServletException {
          
        }
    
    　　//销毁
        public void destroy() {
    
        }
    
    }

**字符编码过滤器必须放在其它过滤器之前，还有请求的表单必须为post，反正我试过，不指定method属性进行提交的话，会出现乱码**

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