本篇文章为大家展示了springboot中怎么增加一个过滤器，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。
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; }}
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