javaWeb中乱码问题

1.解决HTML页面中的中文乱码
   <META http-equiv=Content-Type content="text/html;charset=utf-8">

2.解决JSP页面中的中文乱码问题
  <%@ page contentType="text/html;charset=utf-8" language="java" %>

3.解决Servlet响应结果的中文
  response.setCharacterEncoding("utf-8");

4.解决页面数据传输的中文
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>
    org.springframework.web.filter.CharacterEncodingFilter
  </filter-class>
   <init-param>
       <param-name>encoding</param-name>
       <param-value>utf-8</param-value>
   </init-param>
</filter>

<filter-mapper>
   <filter-name>encodingFilter</filter-name>
   <url-pattern>/*<url-pattern>
</filter-mapper>

5.解决Http中get请求方式的乱码
  String parameter= request.getParameter("parameter");
  if(parameter!=null)
   parameter=new String(parameter.getBytes("ISO-8859-1"),"UTF-8");

  （tomcat中servser.xml中 添加
        <Connector port="8080"
        maxThreads="150"
        ...
       disableUploadTimeout="true"
       URIEncoding="utf-8"
    >）


方式三：（不管server.xml怎么配，都不会有问题）
思路：在页面中两次URL编码，
                              在Action中自己做一次URL解码。
1.在JS中：
param = encodeURI(param);
param = encodeURI(param);

                       
       
                        function show(id){
                      对id进行一次url编码
                      id =encodeURI(id)
                      对id进行二次url编码
                      id =encodeURI(id)
            
                       var    url="${pageContext.request.contextPath}/one.action?id="+id;
                     window.showModalDialog(url,null,"dialogHeight:450px;dialogWidth:600px;resizable:yes");

                    }

                      2.在action类中进行解码: 
                        解码   URLDecoder.decode(id,"utf-8");

                       (编码)  java.net.URLEncoder.encode(id,"utf-8");
                     
                      3.在<s:a>中：
                        <s:a action="oneAction_delete">
                        <s:param name="key"  value-"%{@java.net.URLEncoder@encode(key,"utf-8")}" />
                         删除
                        </s:a>

                      4.设置ognl表达式中可以调用静态方法
                       <constant  name="struts.ognl.allowStaticMethodAccess" value="true">
                       </constant>




6.解决Mysql数据库中乱码
jdbc:mysql://localhost/test?user=root&password=123&useUnicode=true&characterEncoding=utf-8