解决SpringBoot项目部署时Filter失效

把SpringBoot项目打成war包部署到Tomcat上时Filter无法拦截请求,但在idea上运行没有问题

解决:

首先添加依赖:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>

然后在Filter上添加@Component注解

@WebFilter
@Component//这里
public class SSOFilter  implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }
    ......        
}

打包 启动。