servlet jsp 编码解决方案 过滤器

自己写一个过滤器,将所有的字符编码为UTF-8 就可以了.最好把页面的编码也设置成utf-8  或者统一用GBK 也可以! 祝你好运!!
Java代码
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;  
 
/** 
* 字符编码过滤器,为了解决乱码问题. 
* @author guanminglin 
*/ 
public class EncodingFilter implements Filter {  
 
    public void init(FilterConfig arg0) throws ServletException {  
       // throw new UnsupportedOperationException("Not supported yet.");  
    }  
 
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {  
//        throw new UnsupportedOperationException("Not supported yet.");  
        request.setCharacterEncoding("UTF-8");  
 
// 传递控制到下一个过滤器  
chain.doFilter(request, response);   
    }  
 
    public void destroy() {  
      //  throw new UnsupportedOperationException("Not supported yet.");  
    }  
 
} 

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;

/**
* 字符编码过滤器,为了解决乱码问题.
* @author guanminglin
*/
public class EncodingFilter implements Filter {

    public void init(FilterConfig arg0) throws ServletException {
       // throw new UnsupportedOperationException("Not supported yet.");
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
//        throw new UnsupportedOperationException("Not supported yet.");
        request.setCharacterEncoding("UTF-8");

// 传递控制到下一个过滤器
chain.doFilter(request, response);
    }

    public void destroy() {
      //  throw new UnsupportedOperationException("Not supported yet.");
    }

}
然后在web.xml中添加下面的代码就可以了!
Xml代码
<filter> 
       <filter-name>EncodingFilter</filter-name> 
       <filter-class>org.news.comm.EncodingFilter</filter-class>           
  </filter>     
  <filter-mapping> 
       <filter-name>EncodingFilter</filter-name> 
       <url-pattern>/*</url-pattern> 
   </filter-mapping>