import java.io.IOException;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
/**
* 編碼過濾器
* @author Administrator
*
*/
//@WebFilter(value="/*",initParams={@WebInitParam(name="encoding",value="utf-8")})
public class CharacterFilter implements Filter {
private String encoding;
/**
* 初始化
*/
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
System.out.println("字符編碼過濾器啓動...");
encoding=filterConfig.getInitParameter("encoding");
}
/**
* 過濾功能
*/
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
//設置請求編碼格式
request.setCharacterEncoding(encoding);
//設置響應編碼格式
response.setContentType("text/html;charset="+encoding);
response.setCharacterEncoding(encoding);
chain.doFilter(request, response);
}
/**
* 銷燬
*/
@Override
public void destroy() {
// TODO Auto-generated method stub
System.out.println("字符編碼過濾器結束...");
}
}