How to configure springboot to jump from http to https
SSL is a security protocol used to ensure the security and data integrity of network communications. It encrypts network connections at the network transport layer.
Example: cas's single sign-in uses SSL
1. Generation of security certificate
1. You can use the certificate generation tool that comes with jdk, which comes with jdk A certificate management tool called keytool can be used to implement signed certificates.
2. First configure the basic java environment, ctrl r input cmd, enter the java directory
3. Example: Generate a certificate with the alias tomcat. First use the command to enter the jdk bin here. The password is 123456
keytool -genkey -alias tomcat -keypass 123456 -keyalg RSA -keysize 1024 -validity 365 -keystore D:/keys/tomcat.keystore -storepass 123456
4. Get a tomcat.keystore file and put this file in the project directory
2. Configure SSL
1. Edit the file application.properties
package com.example; import org.apache.catalina.Context; import org.apache.catalina.connector.Connector; import org.apache.tomcat.util.descriptor.web.SecurityCollection; import org.apache.tomcat.util.descriptor.web.SecurityConstraint; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory; import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory; import org.springframework.context.annotation.Bean; @SpringBootApplication public class SpringBootHttpsApplication { public static void main(String[] args) { SpringApplication.run(SpringBootHttpsApplication.class, args); } @Bean public EmbeddedServletContainerFactory servletContainer() { TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory() { @Override protected void postProcessContext(Context context) { SecurityConstraint constraint = new SecurityConstraint(); constraint.setUserConstraint("CONFIDENTIAL"); SecurityCollection collection = new SecurityCollection(); collection.addPattern("/*"); constraint.addCollection(collection); context.addConstraint(constraint); } }; tomcat.addAdditionalTomcatConnectors(httpConnector()); return tomcat; } @Bean public Connector httpConnector() { Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol"); connector.setScheme("http"); //Connector监听的http的端口号 connector.setPort(8080); connector.setSecure(false); //监听到http的端口号后转向到的https的端口号 connector.setRedirectPort(8443); return connector; } }
3. Test usage
1. Check the startup information
2. Access address localhost :8080/AmazeUI-2.7.2/login.html I customized an html web page, which has been redirected to port 8443
3. It is displayed in the address bar of the browser Unsafe: Because this certificate is not trusted, traditional enterprises generally need to purchase this certificate
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