eclipse在tomcat下get/post中文问题解决

Tomcat UTF-8编码设置

最新推荐文章于 2024-12-29 21:26:50 发布

原创最新推荐文章于 2024-12-29 21:26:50 发布 · 577 阅读

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#tomcat #eclipse #encoding #character #null #filter

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本文介绍如何为Tomcat服务器设置GET请求的UTF-8编码，并通过自定义过滤器实现POST请求的UTF-8编码支持。具体步骤包括修改server.xml和web.xml文件。

get比较简单，修改tomcat的server.xml配置：

最后的URIEncoding="utf-8"加上即可

post复杂些，先添加一个类：

package net.viralpatel.spring3.controller;

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;

/**
* @author Administrator
*
* TODO 要更改此生成的类型注释的模板，请转至窗口－首选项－ Java －代码样式－代码模板
*/
public class SetCharacterEncodingFilter implements Filter {
   protected String encoding = null;
   protected FilterConfig filterConfig = null;
   protected boolean ignore = true;

   public void destroy() {
       this.encoding = null;
       this.filterConfig = null;
   }

   public void doFilter(ServletRequest request, ServletResponse response,
           FilterChain chain) throws IOException, ServletException {
       if (ignore || (request.getCharacterEncoding() == null)) {
           if (encoding != null)
               request.setCharacterEncoding(this.encoding);
       }
       chain.doFilter(request, response);
   }

   public void init(FilterConfig filterConfig) throws ServletException {
       this.filterConfig = filterConfig;
       this.encoding = filterConfig.getInitParameter("encoding");
       String value = filterConfig.getInitParameter("ignore");
       if (value == null)
           this.ignore = true;
       else if (value.equalsIgnoreCase("true"))
           this.ignore = true;
       else if (value.equalsIgnoreCase("yes"))
           this.ignore = true;
       else
           this.ignore = false;

   }

}

然后修改web.xml：

    <filter>
       <filter-name>Set Character Encoding</filter-name>
       <filter-class>net.viralpatel.spring3.controller.SetCharacterEncodingFilter</filter-class>
       <init-param>
           <param-name>encoding</param-name>
           <param-value>UTF-8</param-value>
       </init-param>
   </filter>
   <filter-mapping>
       <filter-name>Set Character Encoding</filter-name>
       <url-pattern>/*</url-pattern>
   </filter-mapping>

注意两点：一是上面的两个filter-name的值必须一致，另外filter-class必须写成上面新建的类