学步园

1：可以写一个字符过滤器来解决

package com.capinfotech.filter;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class SetCharacterEncodingFilter extends HttpServlet implements Filter {

	protected String encoding = null;
	protected FilterConfig filterConfig = null;
	protected boolean ignore = true;

	// Handle the passed-in FilterConfig
	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;
		}

	}

	// Process the request/response pair

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {

		// Conditionally select and set the character encoding to be used
		if (ignore || (request.getCharacterEncoding() == null)) {
			String encoding = selectEncoding(request);
			if (encoding != null) {
				request.setCharacterEncoding(encoding);
				response.setCharacterEncoding(encoding);
			}
		}

		// Pass control on to the next filter
		chain.doFilter(request, response);

	}

	protected String selectEncoding(ServletRequest request) {
		return (this.encoding);
	}

	// Clean up resources
	public void destroy() {
		this.encoding = null;
		this.filterConfig = null;
	}
	
}

在web.xml里进行配置，一定要配置在Struts2的前面

<filter>
    <filter-name>setcharacterencodingfilter</filter-name>
<filter-class>com.capinfotech.filter.SetCharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>ignore</param-name>
      <param-value>true</param-value>
    </init-param>
 </filter>
 
 <filter-mapping>
    <filter-name>setcharacterencodingfilter</filter-name>
    <url-pattern>/*</url-pattern>
 </filter-mapping>
 

2：修改Tomcat下面conf下的server.xml的内容

 <Connector port="8088" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" 
               useBodyEncodingForURI="true" URIEncoding="utf-8"
               />

增加useBodyEncodingForURI="true" URIEncoding="utf-8"

3：在struts.xml里或者struts.properties增加struts.i18n.encoding=UTF-8