开发中遇到中文乱码，请检查“jsp-tomcat-struts1-ajax-webservice”，请检查以下几处：
1.jsp页面：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ page language="java" pageEncoding="GBK" contentType="text/html;charset=GBK"%>
<script type="text/javascript" src="${pageContext.request.contextPath }/tsjs/userinfo.js" charset="GBK"></script>
2.Action类:
request.setCharacterEncoding("GBK");
/**...**/ response.setContentType("text/html");
response.setCharacterEncoding("GBK");
PrintWriter out = response.getWriter();
out.write(price);
out.flush();
out.close();
3.tomcat配置中(修改tomcat下的conf/server.xml文件)，Tomcat（默认ISO-8859-1编码）****此处可不做修改：
<!--修改前<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />--> <!--修改后--> <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" URIEncoding="UTF-8" />
4.最后就是自己写一个过滤器，这个是最有效的解决中文访问(request/response)的办法了：
字符编码过滤器类EncodingFilter：
package com.ts.filter;
import java.io.IOException;
import java.util.Map;
import java.util.Set;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
/**
* ClassName: EncodingFilter Chinese encoding exception <br/>
* Date: 2015-1-15 下午01:37:20 <br/>
* <br/>
*
* @author tskk@ts.com
*
* first made
* @version 0.0.1<br/>
*
*/
public class EncodingFilter implements Filter {
private FilterConfig config;
private String encoding;
/**
* filter Chinese encoding
* */
@SuppressWarnings("unchecked")
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,ServletException {
HttpServletRequest reqhttp = (HttpServletRequest) request;
encoding = config.getInitParameter("encoding");
encoding = encoding == null ? "GBK" : encoding;
//if ajax request
if(reqhttp.getHeader("X-Requested-With") != null && reqhttp.getHeader("X-Requested-With").equalsIgnoreCase("XMLHttpRequest")){
request.setCharacterEncoding("UTF-8");
//webservice req res
}else if(reqhttp.getHeader("soapaction") != null){
request.setCharacterEncoding("UTF-8");
//other req
}else{
//post http req
if(reqhttp.getMethod().equalsIgnoreCase("POST")){
request.setCharacterEncoding(encoding);
}
//get http req
if(reqhttp.getMethod().equalsIgnoreCase("GET")){
Map map = reqhttp.getParameterMap();
Set set = map.entrySet();
for(Object obj : set){
//value entry.getKey() no encoding error
Map.Entry entry = (Map.Entry)obj;
String [] value = (String[]) entry.getValue();
for(int i = 0,j = value.length;i < j;i++){
String reqEncoding = reqhttp.getCharacterEncoding();
reqEncoding = reqEncoding == null ? "ISO8859-1" : reqEncoding;
value[i] = new String(value[i].getBytes(reqEncoding),encoding);
}
}
request = reqhttp;
}
}
chain.doFilter(request,response);
}
/**
* init encoding
* @param config encoding
* */
@Override
public void init(FilterConfig config) throws ServletException {
this.config = config;
}
/**
* destroy encoding
* */
@Override
public void destroy() {
this.config = null;
}
}
web.xml配置：
<!-- Chinese encoding --> <filter> <filter-name>EncodingFilter</filter-name> <filter-class>com.ts.filter.EncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>GBK</param-value> </init-param> </filter> <filter-mapping> <filter-name>EncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
