jsp传到数据库中乱码的处理

1.新建一个类：

1. package zz;  
2.   
3.   
4. import java.io.IOException;  
5. import javax.servlet.Filter;  
6. import javax.servlet.FilterChain;  
7. import javax.servlet.FilterConfig;  
8. import javax.servlet.ServletException;  
9. import javax.servlet.ServletRequest;  
10. import javax.servlet.ServletResponse;  
11.   
12. /** 
13.  * Filter that sets the character encoding to be used in parsing the 
14.  * incoming request 
15.  */  
16. public class SetCharacterEncodingFilter implements Filter {  
17.     protected String encoding = null;  
18.     protected FilterConfig filterConfig = null;  
19.     public void destroy() {}  
20.     public void init(FilterConfig filterConfig) throws ServletException {  
21.         this.filterConfig = filterConfig;  
22.         this.encoding = filterConfig.getInitParameter("encoding");  
23.     }  
24.     /** 
25.      * Select and set(if specified) the character encoding to be used to 
26.      * interpret request parameters for this request 
27.      */  
28.     public void doFilter(ServletRequest request,ServletResponse response,  
29.                           FilterChain chain) throws IOException,ServletException {  
30.         request.setCharacterEncoding(encoding);  
31.         response.setCharacterEncoding(encoding);  
32.           
33.         chain.doFilter(request,response);  
34.     }  
35. }  
36. 
    

2.web.xml中的配置加上下面几句话就行了：

<filter>
    <filter-name>SetCharacterEncoding</filter-name>
    <filter-class>com.bigdata.financial.filter.SetCharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  
  <filter-mapping>
    <filter-name>SetCharacterEncoding</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>