Spring Boot中如何将端口8080重定向到9090呢?

下文笔者讲述SpringBoot中将一个http端口重定向到另一个https端口上的方法分享,如下所示

端口重定向的实现思路

  编写一个ServletWebServerFactory
   然后将端口从HTTP 8080重定向到HTTPS 9090

端口重定向的示例

1.引入依赖
 
pom.xml

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
 
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-thymeleaf</artifactId>
  </dependency>

 2. springboot 2.*

 package com.java265;
 
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.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.context.annotation.Bean;
 
@SpringBootApplication
public class StartApplication {
    public static void main(String[] args) {
        SpringApplication.run(StartApplication.class, args);
    }
 
    // spring boot 2.x
    @Bean
    public ServletWebServerFactory servletContainer() {
        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory() {
            @Override
            protected void postProcessContext(Context context) {
                SecurityConstraint securityConstraint = new SecurityConstraint();
                securityConstraint.setUserConstraint("CONFIDENTIAL");
                SecurityCollection collection = new SecurityCollection();
                collection.addPattern("/*");
                securityConstraint.addCollection(collection);
                context.addConstraint(securityConstraint);
            }
        };
        tomcat.addAdditionalTomcatConnectors(redirectConnector());
        return tomcat;
    }
 
    private Connector redirectConnector() {
        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
        connector.setScheme("http");
        connector.setPort(8080);
        connector.setSecure(false);
        connector.setRedirectPort(9090);
        return connector;
    }
 
}


//spring boot 1.*

@Bean
  public EmbeddedServletContainerFactory servletContainer() {
      TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory() {
          @Override
          protected void postProcessContext(Context context) {
              SecurityConstraint securityConstraint = new SecurityConstraint();
              securityConstraint.setUserConstraint("CONFIDENTIAL");
              SecurityCollection collection = new SecurityCollection();
              collection.addPattern("/*");
              securityConstraint.addCollection(collection);
              context.addConstraint(securityConstraint);
          }
      };
 
      tomcat.addAdditionalTomcatConnectors(redirectConnector());
      return tomcat;
  }
 
  private Connector redirectConnector() {
      Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
      connector.setScheme("http");
      connector.setPort(8080);
      connector.setSecure(false);
      connector.setRedirectPort(8443);
 
      return connector;
  }

使用以上方法后,当我们访问localhost:8080,会重定向到localhost:9090