Spring Boot (入门) 过滤器

过滤器（Filter）文件
MyFilter.java

/**filterName 给过滤器取一个外号

• urlPatterns 配置过滤器的拦截地址
• @author Maibenben

*/

@WebFilter(filterName=“firstFiler”,urlPatterns="/*")
public class MyFilter implements Filter{

@Override
public void init(FilterConfig filterConfig) throws ServletException {
	// TODO Auto-generated method stub
	System.out.println("MyFilter-->init 初始化");
	
}

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
		throws IOException, ServletException {
	// TODO Auto-generated method stub
	HttpServletRequest req=(HttpServletRequest) request;
	System.out.println("MyFilter-->init 过滤中。。"+request);
	System.out.println("MyFilter-->init 过滤中。。");
	String url=req.getRequestURI().toString();
	//如果后面还有过滤器就表示执行下一个过滤器，如果没有，就表示过滤完成
	chain.doFilter(request, response);
	
}

@Override
public void destroy() {
	// TODO Auto-generated method stub
	System.out.println("MyFilter-->init 被销毁");
	
}

}