springboot http转https

springboot http转https

一、安全证书的生成
可以使用jdk自带的证书生成工具，jdk自带一个叫keytool的证书管理工具，可以用它来实现签名的证书。

1、进入cmd命令控制终端

2、生成一个证书
别名：alias = tomcat
密码：keypass = 123456
生成位置：keystore = D:/keys
keys文件夹需要自己先创建好
 

cmd命令:

keytool -genkey -alias tomcat -keypass 123456 -keyalg RSA -keysize 1024 -validity 365 -keystore D:/keys/tomcat.keystore -storepass 123456
 

 3、获取tomcat.keystore文件，放入项目根目录下面

 二，配置yml文件

server:
  port: 8443
  ssl:
    key-store: server.keystore
    key-alias: tomcat
    enabled: true
    key-store-type: JKS
    key-store-password: 123456

三、springbootApplication启动类配置

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 WeijingApplication {

    public static void main(String[] args) {
        SpringApplication.run(WeijingApplication.class, args);
    }
    @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(8443);
        return connector;
    }

启动成功

另外：springboot2.xx版本以上可以用上面的方法 如果2.xx以下的 就要换成

EmbeddedServletContainerFactory

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.context.annotation.Bean;

@SpringBootApplication
public class WeijingApplication {

    public static void main(String[] args) {
        SpringApplication.run(WeijingApplication.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;
    }

另外：报错端口被占用的话可以看下这个

报错是因为不能读取配置文件的端口，那个端口是要被用的

部署到Linux服务器 https启动失败报错 原因：

部署到服务器的时候 需要用再linux服务器上面 重新用Linux的JDK生成证书 (不能用windows生成的证书) 并放再固定的文件夹位置

更改yml文件配置 

 更改成服务器文件夹路径：/usr/local/xxx/server.keystore