一、自定义的类（注意其中的属性，web.xml中的配置就是根据这个类的）import org.springframework.web.filter.OncePerRequestFilter;import javax.servlet.FilterChain;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.Iterator;/** * Filter - 编码格式转换 */public class EncodingConvertFilter extends OncePerRequestFilter {    /** 原编码格式：与web.xml文件中对应设置 */    private String fromEncoding = "ISO-8859-1";    /** 目标编码格式 ：与web.xml文件中对应设置*/    private String toEncoding = "UTF-8";    @SuppressWarnings("unchecked")    @Override    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {        if (request.getMethod().equalsIgnoreCase("GET")) {            for (Iterator<String[]> iterator = request.getParameterMap().values().iterator(); iterator.hasNext();) {                String[] parames = iterator.next();                for (int i = 0; i < parames.length; i++) {                    try {                        parames[i] = new String(parames[i].getBytes(fromEncoding), toEncoding);                    } catch (UnsupportedEncodingException e) {                        e.printStackTrace();                    }                }            }        }        filterChain.doFilter(request, response);    }    /**     * 获取原编码格式     * @return 原编码格式     */    public String getFromEncoding() {        return fromEncoding;    }    /**     * 设置原编码格式     * @param fromEncoding     *   原编码格式     */    public void setFromEncoding(String fromEncoding) {        this.fromEncoding = fromEncoding;    }    /**     * 获取目标编码格式     * @return 目标编码格式     */    public String getToEncoding() {        return toEncoding;    }    /**     * 设置目标编码格式     * @param toEncoding     *            目标编码格式     */    public void setToEncoding(String toEncoding) {        this.toEncoding = toEncoding;    }}二、web.xml<!--springmvc自定的过滤post--><filter>    <filter-name>encodingFilter</filter-name>    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>    <!-- 其中encoding用来设置编码格式，forceEncoding用来设置是否理会 request.getCharacterEncoding()方法，设置为true则强制覆盖之前的编码格式 -->    <init-param>      <param-name>encoding</param-name>      <param-value>UTF-8</param-value>    </init-param>    <init-param>      <param-name>forceEncoding</param-name>      <param-value>true</param-value>    </init-param>  </filter><!--自定义过滤get请求，如果tomcat中server.xml文件中配置了URIEncoding="UTF-8",可以不需要-->  <filter>    <filter-name>encodingConvertFilter</filter-name>    <filter-class>home.xxx.filter.EncodingConvertFilter</filter-class>    <init-param>      <param-name>fromEncoding</param-name>      <param-value>ISO-8859-1</param-value>    </init-param>    <init-param>      <param-name>toEncoding</param-name>      <param-value>UTF-8</param-value>    </init-param>  </filter><filter-mapping>