在web应用中统一使用UTF-8的关键点

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1、页面

<%@ page contentType="text/html; charset=UTF-8" language="java"%><html><head><title>Add Product Form</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><mce:style type="text/css"></mce:style><style type="text/css" mce_bogus="1">@import url(css/main.css);</style></head><body>...

2、使用过滤器

<filter> <filter-name>SetCharacterEncoding</filter-name> <filter-class>com.njs.utils.SetCharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param></filter><filter-mapping> <filter-name>SetCharacterEncoding</filter-name> <url-pattern>/*</url-pattern></filter-mapping>

package com.njs.utils;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;/** * 统一执行request.setCharacterEncoding(encoding)设置的过滤器 * */public class SetCharacterEncodingFilter implements Filter {protected String encoding = null;protected FilterConfig filterConfig = null;public void destroy() {this.encoding = null;this.filterConfig = null;}public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {// Conditionally select and set the character encoding to be usedif (request.getCharacterEncoding() == null) {String encoding = this.encoding;if (encoding != null) {request.setCharacterEncoding(encoding);}}// Pass control on to the next filterchain.doFilter(request, response);}public void init(FilterConfig filterConfig) throws ServletException {this.filterConfig = filterConfig;this.encoding = filterConfig.getInitParameter("encoding");}}

3、设置应用服务器参数，处理url中的提交参数值的中文字符