一篇文章入门SpringBoot的学习教程

一、学习git相关操作，在学习的同时把demo同步到github或gitee上

我是这样学习git的：git教程

二、学习安装maven，我构建的pom.xml文件是这样的：

	4.0.0

	com.zgm
	springboot_learning
	0.0.1-SNAPSHOT
	jar

	springboot_learning
	A project for Spring Boot Learning

	
		org.springframework.boot
		spring-boot-starter-parent
		2.0.3.RELEASE
		 
	

	
		UTF-8
		UTF-8
		1.8
		1.2.29
		5.0.2.Final
		1.3.1
		5.1.38
		5.0.2.Final
	

	
		
			org.springframework.boot
			spring-boot-starter-web
		
		
			org.springframework.boot
			spring-boot-starter-test
			test
		
		
		
			org.hibernate
			hibernate-validator
			${version.hibernate-validator}
			
				
					org.slf4j
					slf4j-api
				
			
		
		
			com.alibaba
			fastjson
			${version.fastjson}
		
		
			org.springframework.boot
			spring-boot-starter-test
			test
		
		
			org.projectlombok
			lombok
			true
		
	

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

三、自定义filter ,  用途：录调用日志、排除有XSS威胁的字符、执行权限验证等等

实现：添加一下配置类

import org.apache.catalina.filters.RemoteIpFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

@Configuration
public class WebConfiguration {
    @Bean
    public RemoteIpFilter remoteIpFilter() {
        return new RemoteIpFilter();
    }
    @Bean
    public FilterRegistrationBean testFilterRegistration() {

        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(new MyFilter());
        registration.addUrlPatterns("/*");
        registration.addInitParameter("paramName", "paramValue");
        registration.setName("MyFilter");
        registration.setOrder(1);
        return registration;
    }

    public class MyFilter implements Filter {
        @Override
        public void destroy() {
            // TODO Auto-generated method stub
        }

        @Override
        public void doFilter(ServletRequest srequest, ServletResponse sresponse, FilterChain filterChain)
                throws IOException, ServletException {
            // TODO Auto-generated method stub
            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 {
            // TODO Auto-generated method stub
        }
    }
}

当请求“/hello”时，就会调用该自定义filter的doFilter方法，打印出：

四、redis在springboot中的使用

用途①：做spring session(spring-session-data-redis) , 可以在分布式系统中共享session

未完待续。。。