servlet web.xml 中文乱码。

过滤器代码(本人家里没环境 复制别人的过滤器改的 如果有错的话你就自己改下波。。)
Java code

——
import java.io.IOException;
import javax.servlet.*;

public class EncodingFilter implements Filter {
FilterConfig config;
public void setFilterConfig(FilterConfig config) {
this.config = config;
}
public FilterConfig getFilterConfig() {
return config;
}
public void doFilter(ServletRequest r1, ServletResponse r2, FilterChain chain) {
HttpServletRequest request = (HttpServletRequest)r1;
HttpServletResponse response = (HttpServletResponse)r2;
String encoding = “UTF-8″;
request.setCharacterEncoding(encoding);
response.setCharacterEncoding(encoding);
chain.doFilter(r1, r2);
}
}

web.xml配置
XML code

<filter>
<filter-name>EncodingFilter</filter-name>
<filter-class>过滤器的位置</filter-class>
</filter>

<filter-mapping>
<filter-name>EncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

http://blog.csdn.net/lanchengxiaoxiao/article/details/7551509