我有一个注册页regist.jsp,业务逻辑user.java（实现用户查询，更新等操作），控制处理层有registForm.java(得到注册的数据)，registAction.java(主要是得到注册数据，并用user.java的的方法实现更新操作)。现在出现的问题是：写入到sqlserver中的数据是汉字的都出现了？？，给看看怎么回事，谢谢
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做一个Filter,专门处理request时的编码处理
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用filter解决
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1.web.xml中加入过滤器
<filter>
<filter-name> Set Character Encoding </filter-name>
<filter-class> com.test.filters.SetCharacterEncodingFilter </filter-class>
<init-param>
<param-name> encoding </param-name>
<param-value> UTF-8 </param-value>
</init-param>
</filter>
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package com.test.filters;
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;
public class SetCharacterEncodingFilter implements Filter {
protected String encoding = null;
protected FilterConfig filterConfig = null;
protected boolean ignore = true;
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 used
if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null) {
request.setCharacterEncoding(encoding);
}
}
// Pass control on to the next filter
chain.doFilter(request, response);
}
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter( "encoding ");
String value = filterConfig.getInitParameter( "ignore ");
if (value == null) {
this.ignore = true;
} else if (value.equalsIgnoreCase( "true ")) {
this.ignore = true;
} else if (value.equalsIgnoreCase( "yes ")) {
this.ignore = true;
} else {
this.ignore = false;
}
}
protected String selectEncoding(ServletRequest request) {
return (this.encoding);
}
}