struts2中文乱码解决方法(post请求)

package com.platform.common.web.servlet;

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;

public class SetCharEncodingFilter implements Filter {

protected FilterConfig filterConfig = null;
protected String encoding = "UTF-8";
public void destroy() {
filterConfig = null;
encoding = null;
}

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
FilterChain filterChain) throws IOException, ServletException {
/* if(encoding != null && !"".equals(encoding))
servletRequest.setCharacterEncoding(encoding);*/

servletRequest.setCharacterEncoding("utf-8");
//servletResponse.setContentType("text/html;charset=utf-8");
filterChain.doFilter(servletRequest, servletResponse);
}

public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
}

}

<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>com.platform.common.web.servlet.SetCharEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>