中文乱码处理办法

-------------------JAVA代码------------------

Java code

  

   
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   package
    tools; 
   import
    javax.servlet.http.HttpServlet; 
   import
    javax.servlet.Filter; 
   import
    javax.servlet.FilterConfig; 
   import
    javax.servlet.ServletRequest; 
   import
    javax.servlet.ServletResponse; 
   import
    javax.servlet.FilterChain; 
   public
    
   class
    EncodingFilter 
   extends
    HttpServlet 
   implements
    Filter { 
   private
    FilterConfig config 
   =
    
   null
   ; 
   private
    String targetEncoding 
   =
    
   "
   GBK
   "
   ; 
   public
    
   void
    init(FilterConfig filterConfig) { 
   this
   .config 
   =
    filterConfig; 
   this
   .targetEncoding 
   =
    config.getInitParameter(
   "
   encoding
   "
   ); } 
   public
    
   void
    destroy() { config 
   =
    
   null
   ; targetEncoding 
   =
    
   null
   ; } 
   public
    
   void
    doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) { ServletRequest request 
   =
    (ServletRequest) servletRequest; 
   try
    { request.setCharacterEncoding(targetEncoding); filterChain.doFilter(servletRequest, servletResponse); } 
   catch
    (Exception ex) { ex.printStackTrace(); } } } 

  

------------web.xml------------

Java code

  

   
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   <
   filter
   >
    
   <
   filter
   -
   name
   >
   EncodingFilter
   </
   filter
   -
   name
   >
    
   <
   filter
   -
   class
   >
   [color
   =
   #FF0000]db.EncodingFilter[
   /
   color]
   </
   filter
   -
   class
   >
    
   <
   init
   -
   param
   >
    
   <
   param
   -
   name
   >
   encoding
   </
   param
   -
   name
   >
    
   <
   param
   -
   value
   >
   [color
   =
   #0000FF]GBK[
   /
   color]
   </
   param
   -
   value
   >
    
   </
   init
   -
   param
   >
    
   </
   filter
   >
    
   <
   filter
   -
   mapping
   >
    
   <
   filter
   -
   name
   >
   EncodingFilter
   </
   filter
   -
   name
   >
    
   <
   url
   -
   pattern
   >
   /*
   </url-pattern> </filter-mapping> 

  

-------------------------------------------------------------------------------

红色是类的路径，蓝色是编码，注意和jsp页面上的要一致

添加、查询数据都没问题，有没有有效请用过再说，希望能帮新学的XDJM们不再受到乱码问题的困扰，有什么不足也请老大们指出

附:只在sqlserver2000和mysql中试验过