本文实例讲述了springboot 增加过滤器方法操作。分享给大家供大家参考，具体如下：

在访问服务器时，我们需要控制用户是否允许权限，这个时候可以使用过滤器。

在springboot 配置过滤器的方法如下：

编写过滤器代码：

package com.neo.filter;import java.io.IOException;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;public class MyFilter implements Filter { @Override public void destroy() { } @Override public void doFilter(ServletRequest srequest, ServletResponse sresponse, FilterChain filterChain) throws IOException, ServletException { HttpServletRequest request = (HttpServletRequest) srequest; System.out.println("this is MyFilter,url :"+request.getRequestURI()); filterChain.doFilter(srequest, sresponse); } @Override public void init(FilterConfig arg0) throws ServletException { }}

编写加载过滤器代码：

package com.neo.conf;import org.springframework.boot.web.servlet.FilterRegistrationBean;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import com.neo.filter.MyFilter;import com.neo.filter.MyFilter2;@Configurationpublic class WebConfiguration { @Bean public FilterRegistrationBean registerFilter() { FilterRegistrationBean registration = new FilterRegistrationBean(); registration.setFilter(new MyFilter()); registration.addUrlPatterns("/*"); registration.addInitParameter("paramName", "paramValue"); registration.setName("MyFilter"); registration.setOrder(1); return registration; } @Bean public FilterRegistrationBean registerFilter2() { FilterRegistrationBean registration = new FilterRegistrationBean(); registration.setFilter(new MyFilter2()); registration.addUrlPatterns("/*"); registration.addInitParameter("paramName", "paramValue"); registration.setName("MyFilter2"); registration.setOrder(2); return registration; }}

这里我们看到我们注册了两个过滤器，过滤器的执行顺序通过setOrder确定。

更多关于java相关内容感兴趣的读者可查看本站专题：《Spring框架入门与进阶教程》、《Java数据结构与算法教程》、《Java操作DOM节点技巧总结》、《Java文件与目录操作技巧汇总》和《Java缓存操作技巧汇总》

希望本文所述对大家java程序设计有所帮助。