Java jsp sevlet中文乱码问题解决方案

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Java Web开发中的中文乱码问题的处理办法，jsp、javabean、servlet等稍改动后均适用。
-------------------JAVA代码------------------

1. package tools;
2. 
   
3. import javax.servlet.http.HttpServlet;
4. import javax.servlet.Filter;
5. import javax.servlet.FilterConfig;
6. import javax.servlet.ServletRequest;
7. import javax.servlet.ServletResponse;
8. import javax.servlet.FilterChain;
9. 
   
10. public class EncodingFilter extends HttpServlet implements Filter
11. {
12.     private FilterConfig config = null;
13.     private String targetEncoding = "GBK";
14. 
    
15.     public void init(FilterConfig filterConfig)
16.     {
17.         this.config = filterConfig;
18.         this.targetEncoding = config.getInitParameter("encoding");
19.     }
20. 
    
21.     public void destroy()
22.     {
23.         config = null;
24.         targetEncoding = null;
25.     }
26. 
    
27.     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
28.                          FilterChain filterChain)
29.     {
30.         ServletRequest request = (ServletRequest) servletRequest;
31.         try
32.         {
33.             request.setCharacterEncoding(targetEncoding);
34.             filterChain.doFilter(servletRequest, servletResponse);
35.         }
36.         catch (Exception ex)
37.         {
38.             ex.printStackTrace();
39.         }
40.     }
41. 
    
42. }
43. 
    

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

1. <filter>
2.     <filter-name>EncodingFilter</filter-name>
3.     <filter-class>db.EncodingFilter</filter-class>
4.     <init-param>
5.       <param-name>encoding</param-name>
6.       <param-value>GBK</param-value>
7.     </init-param>
8.   </filter>
9.    <filter-mapping>
10.     <filter-name>EncodingFilter</filter-name>
11.     <url-pattern>/*</url-pattern>
12.   </filter-mapping>
13. 
    

在sqlserver2000和mysql中试验通过。
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