structs中文乱码处理----filter

                                                         structs中文乱码处理----filter

方案一：

写一个MyActionServlet，并覆盖掉ActionServlet的process方法：

1. package com.web;   
2.   
3. import java.io.IOException;   
4.   
5. import javax.servlet.ServletException;   
6. import javax.servlet.http.HttpServletRequest;   
7. import javax.servlet.http.HttpServletResponse;   
8.   
9. import org.apache.struts.action.ActionServlet;   
10.   
11. public class MyActionServlet extends ActionServlet {   
12.     @Override  
13.     protected void process(HttpServletRequest request,   
14.             HttpServletResponse response) throws IOException, ServletException {   
15.         // TODO Auto-generated method stub   
16.         response.setCharacterEncoding("utf-8");   
17.         request.setCharacterEncoding("utf-8");   
18.         super.process(request, response);   
19.     }   
20. } 

 配置文件web.xml

<filter> 
   <filter-name>Set Character Encoding</filter-name> 
   <filter-class>com.baihe.story.util.GbkActionSerlvet</filter-class> 
   <init-param> 
    <param-name>encoding</param-name> 
    <param-value>utf-8</param-value> 
   </init-param> 
 </filter> 
  
 <filter-mapping> 
    <filter-name>Set Character Encoding</filter-name> 
    <url-pattern>/*</url-pattern> 
  </filter-mapping> 
  </filter-mapping>

 方案二：写一个过滤器，对所有请求进行过滤

1. package com.web;   
2.   
3. import java.io.IOException;   
4.   
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. public class SetCharacterEncodingFilter implements Filter {   
13.     
14.  private String encoding;   
15.  private FilterConfig filterConfig = null;   
16.     
17.  public void destroy() {   
18.   this.encoding = null;   
19.   this.filterConfig = null;   
20.   
21.  }   
22.   
23.  public void doFilter(ServletRequest request, ServletResponse response,   
24.    FilterChain chain) throws IOException, ServletException {   
25.   request.setCharacterEncoding(this.encoding);   
26.   chain.doFilter(request, response);   
27.  }   
28.   
29.  public void init(FilterConfig filterConfig) throws ServletException {   
30.   this.encoding = filterConfig.getInitParameter("encoding");   
31.  }   
32.   
33. } 

 配置文件web.xml

Xml代码

1. <filter>  
2.   <filter-name>Set Character Encoding</filter-name>  
3.   <filter-class>com.web.SetCharacterEncodingFilter</filter-class>  
4.   <init-param>  
5.    <param-name>encoding</param-name>  
6.    <param-value>utf-8</param-value>  
7.   </init-param>  
8.  </filter>  
9.   
10.  <filter-mapping>  
11.   <filter-name>Set Character Encoding</filter-name>  
12.   <url-pattern>/*</url-pattern>  
13.  </filter-mapping>  
14.   </filter-mapping>