代码
<%@ page language="java" contentType="text/html; charset=GBK"%>
<%
//request.setCharacterEncoding("GBK");
String contentId = request.getParameter("contentId");
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>Jsp Test</title>
</head>
<body>
<form method = "post" action="ActionVerify.jsp">
<table>
<tr>
<td>
<input name = "contentId" type = "text" value= "<%=contentId %>">
</td>
<td>
<input name = "submit" type = "submit" value= "提交">
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=GBK"%>
<%
//request.setCharacterEncoding("GBK");
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>Insert title here</title>
</head>
<body>
<form action="">
<table>
<tr>
<td>
<%=request.getParameter("contentId") %>
</td>
</tr>
</table>
</form>
</body>
</html>
我已经设置了编码方式为GBK，但是我设置了request.setCharacterEncoding("GBK");就可以正常显示，<%@ page language="java" contentType="text/html; charset=GBK"%>不能起到当前页面全局作用的效果吗？
第一个为index.jsp第二个为Actionverify.jsp
port="8080" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" URIEncoding="GBK" />3、设置编码转换过滤器，写一个设置字符的类，并在web.xml配置该文件。一.filter类的代码 :package com.yourpackage;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;
import javax.servlet.UnavailableException;/** *//**
* Example filter that sets the character encoding to be used in parsing the
* incoming request
* 字符集过滤器，解决Java中文问题，非常有效
*/
public class SetCharacterEncodingFilter implements Filter ...{ /** *//**
* Take this filter out of service.
*/
public void destroy() ...{
}
/** *//**
* Select and set (if specified) the character encoding to be used to
* interpret request parameters for this request.
*/
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain)throws IOException, ServletException ...{ request.setCharacterEncoding("GB2312"); // 传递控制到下一个过滤器
chain.doFilter(request, response);
} public void init(FilterConfig filterConfig) throws ServletException ...{
}
}二.web.xml里面的配置:<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>netstore.framework.util.SetCharacterEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>4、如果以上方法都不行，检查开发环境是否有问题，我之前就是因为用的eclipse+lomboz整合版导致中文乱码和一些jsp页面编译后会出现少"\"的错误，换成myeclipse就OK了！
像你说的这个，其实<%@ page language="java" contentType="text/html; charset=GBK"%>
确实是起全局作用，就是说整个页面的编码方式是GBK，但是对从别的页面传过来的值就可能不起作用。你必须再转换一次编码方式，一般这种情况只会出现在传中文的时候，你自己写的那是一种解决方法，还可以这样转换：(request.getParameter("contentId").getBytes("ISO8859_1"),"GBK")