filter 설정 문자 인 코딩 형식 구현

하나의 filter

실현

    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.http.HttpServletRequest;  
    import javax.servlet.http.HttpServletResponse;  
      
    public class SetCharacterEncodingFilter implements Filter { //   Filter    
     //          
     private String encode = null;  
     public void destroy(){  
        
     }  
       
     public void doFilter(ServletRequest req,ServletResponse resp,FilterChain chain)  
       throws IOException,ServletException{  
        
      //    
      HttpServletRequest request = (HttpServletRequest)req;  
      HttpServletResponse response = (HttpServletResponse)resp;  
        
      /* 
       *    web.xml                
       *     ，                   
       *          GBK 
       */  
      if(this.encode != null && !this.encode.equals("")){  
       request.setCharacterEncoding(this.encode);  
       response.setCharacterEncoding(this.encode);  
      }else{  
       request.setCharacterEncoding("GBK");  
       response.setCharacterEncoding("GBK");  
      }  
        
      /* 
       *   doFilter                  （servlet JSP  ）。 
       * chain.doFilter          （     ），       servlet JSP  。 
       */  
      chain.doFilter(request, response);  
     }  
       
     public void init(FilterConfig config) throws ServletException{  
      //   web.xml                
      this.encode = config.getInitParameter("encode");  
     }  
       
       
    }  

웹. xml 설정

      
      
      
       
       
      SetCharacterEncodingFilter  
        
        
       ssh.dlc.chp1.filter.SetCharacterEncodingFilter  
        
        
            
                       
       encode  
       GBK  
        
       
       
        
      SetCharacterEncodingFilter  
      *.do