import java.io.IOException;
import java.util.Date;
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;
import org.springframework.stereotype.Component;
@Component // 表明作为spring的一个bean
public class TimeFilter implements Filter {
private HttpServletRequest request;
private HttpServletResponse response;
@Override
public void destroy() {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
throws IOException, ServletException {
this.request = (HttpServletRequest) servletRequest;
this.response = ((HttpServletResponse) servletResponse);
long start = new Date().getTime();
// 过滤器主要逻辑，整个处理流程
chain.doFilter(request, response);
System.out.print(request.getRequestURL());
System.out.println(" time filter 耗时:" + (new Date().getTime() - start)+"ms");
;
}
@Override
public void init(FilterConfig arg0) throws ServletException {
}
}
