原文网址：SpringBoot项目支持HTTPS_IT利刃出鞘的博客-CSDN博客

简介

SSL证书

要使用https，首先需要ssl证书，获取SSL证书有两种方式：

  • 通过证书授权机构购买或者免费领取
  • 自己通过keytool生成

注意

SSL详细配置

server.ssl.ciphers= # Supported SSL ciphers.
server.ssl.client-auth= # Whether client authentication is wanted ("want") or needed ("need"). Requires a trust store.
server.ssl.enabled= # Enable SSL support.
server.ssl.enabled-protocols= # Enabled SSL protocols.
server.ssl.key-alias= # Alias that identifies the key in the key store.
server.ssl.key-password= # Password used to access the key in the key store.
server.ssl.key-store= # Path to the key store that holds the SSL certificate (typically a jks file).
server.ssl.key-store-password= # Password used to access the key store.
server.ssl.key-store-provider= # Provider for the key store.
server.ssl.key-store-type= # Type of the key store.
server.ssl.protocol=TLS # SSL protocol to use.
server.ssl.trust-store= # Trust store that holds SSL certificates.
server.ssl.trust-store-password= # Password used to access the trust store.
server.ssl.trust-store-provider= # Provider for the trust store.
server.ssl.trust-store-type= # Type of the trust store.

key-store-password：生成ssl证书时设置的密钥库的口令。

如果server.port不配置，默认为443。

实例前提

获取SSL证书。作为演示，我们使用keytool生成（JDK安装目录下就有keytool）

keytool -genkey -alias tomcat  -storetype PKCS12 -keyalg RSA -keysize 2048  -keystore keystore.p12 -validity 3650
输入密钥库口令:
再次输入新口令:
您的名字与姓氏是什么?
  [Unknown]:  xxx
您的组织单位名称是什么?
  [Unknown]:  xxx
您的组织名称是什么?
  [Unknown]:  xxx
您所在的城市或区域名称是什么?
  [Unknown]:  beijing
您所在的省/市/自治区名称是什么?
  [Unknown]:  beijing
该单位的双字母国家/地区代码是什么?
  [Unknown]:  china
CN=xxx, OU=xxx, O=xxx, L=beijing, ST=beijing, C=china是否正确?
  [否]:  y

会在当前目录下生成一个证书：keystore.p12，同时记住你在生成证书时候输入的密钥库口令。

将keystore.p12放入resources目录下。

参数详解 

-genkey ：生成key；
-alias ：key的别名；
-dname：指定证书拥有者信息
    dname的值详解：
    CN(Common Name名字与姓氏)
    OU(Organization Unit组织单位名称)
    O(Organization组织名称)
    L(Locality城市或区域名称)
    ST(State州或省份名称)
    C(Country国家名称）
-storetype ：密钥库的类型。常用的有JKS(默认),JCEKS(推荐),PKCS12,BKS,UBER。每个密钥库只可以是其中一种类型。
-keyalg ：DSA或RSA算法(当使用-genkeypair参数)，DES或DESede或AES算法(当使用-genseckey参数)；
-keysize ：密钥的长度为512至1024之间(64的倍数)
-keystore ：证书库的名称
-validity ： 指定创建的证书有效期多少天

只支持https请求

application.yml

server:
  port: 9443
  ssl:
    key-store: classpath:keystore.p12
    key-store-password: xxxxxx
    keyAlias: tomcat
    keyStoreType: PKCS12

引入必要的依赖

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

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

测试controller

package com.example.demo.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
    @GetMapping("/hello")
    public String hello() {
        return "hello world";
    }
}

测试

访问https://localhost:9443/hello     //因为是自己生成的ssl证书，所以https请求是不被客户端识别的，会报不安全，可以将其添加到浏览器的“例外”中。项目中实际使用购买的ssl不存在此问题。

 访问：http://localhost:9443/hello    //访问失败

http请求转换成https请求

简介

Spring Boot不支持通过application.properties同时配置HTTP连接器和HTTPS连接器。因为通过程序的方式配置 HTTP 协议更加简单一点，所以，Spring Boot 推荐的做法是把 HTTPS 配置在配置文件，HTTP 通过程序来配置。

application.yml

server:
  port: 9443
  ssl:
    key-store: classpath:keystore.p12
    key-store-password: 222333
    keyAlias: tomcat
    keyStoreType: PKCS12

配置类

package com.example.demo.config;

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.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class TomcatHttpConfig {
    @Bean
    public Connector connector(){
        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(443);
        return connector;
    }

    @Bean
    public TomcatServletWebServerFactory tomcatServletWebServerFactory(Connector connector){
        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(connector);
        return tomcat;
    }
}

测试

访问：http://localhost:8080/hello    //自动跳转到https://localhost:9443/hello

访问： https://localhost:9443/hello

同时支持http和https请求

application.yml

server:
  port: 9443
  ssl:
    key-store: classpath:keystore.p12
    key-store-password: 222333
    keyAlias: tomcat
    keyStoreType: PKCS12

配置类

法1：直接创建http

package com.example.demo.config;

import org.apache.catalina.connector.Connector;
import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class TomcatHttpConfig {
    @Bean
    public ServletWebServerFactory serverFactory() {
        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory();
        tomcat.addAdditionalTomcatConnectors(createStandardConnector());
        return tomcat;
    }
    private Connector createStandardConnector() {
        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
        connector.setPort(8080);
        return connector;
    }
}

法2：http隐式转为https  //相对“http请求转换成https请求”，只是将false改为true

package com.example.demo.config;

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.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class TomcatHttpConfig {
    @Bean
    public Connector connector(){
        // 默认采用："org.apache.coyote.http11.Http11NioProtocol"
        Connector connector=new Connector();
        connector.setScheme("http");
        //Connector监听的http的端口号
        connector.setPort(8080);
        connector.setSecure(true);
        //监听到http的端口号后转向到的https的端口号
        connector.setRedirectPort(443);
        return connector;
    }

    @Bean
    public TomcatServletWebServerFactory tomcatServletWebServerFactory(Connector connector){
        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(connector);
        return tomcat;
    }
}

法3.WebServerFactoryCustomizer

其他网址 

Springboot项目同时支持http和https访问 | 极客空的小博客

测试

项目启动

2020-12-14 14:41:13.697  INFO 15480 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 443 (https) 8080 (http) with context path ''

访问：http://localhost:8080/hello

访问：https://localhost:9443/hello

多个SSL证书

其他网址

Spring Boot HTTPS配置与后台调用-iTRunner-奔跑的猿-51CTO博客

编程方式支持HTTPS

其他网址

SpringBoot2.2 官方指导手册中文版3--嵌入式Web服务器
enable-multiple-connectors-in-tomcat   //SpringBoot 官网

简介

 本处通过编程来支持https，所以，原来的http不用动，可以直接支持。

放置keystore.p12

放到：src/main/java/com/exmple/demo/config路径下

application.yml

server:
  port: 9000

custom:
  https:
    server:
      port: 9443
      ssl:
        enabled: true
        key-store: keystore.p12
        key-store-password: 222333
        keyAlias: tomcat
        keyStoreType: PKCS12

配置类

package com.example.demo.config;

import org.apache.catalina.connector.Connector;
import org.apache.coyote.http11.Http11NioProtocol;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;

import java.io.File;
import java.io.IOException;

@Configuration
public class TomcatHttpsConfig {
    @Value("${custom.https.server.port: 0}")
    private Integer httpsPort;

    @Value("${custom.https.server.ssl.enabled: 0}")
    private Boolean httpsEnabled;

    @Value("${custom.https.server.ssl.key-store:'keystore.p12'}")
    private String keyStore;

    @Value("${custom.https.server.ssl.keyAlias:'tomcat'}")
    private String kayAlias;

    @Value("${custom.https.server.ssl.key-store-password:'222333'}")
    private String kayStorePassword;

    @Bean
    public ServletWebServerFactory httpsFactory() {
        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory();
        if (httpsEnabled) {
            tomcat.addAdditionalTomcatConnectors(createSslConnector());
        }
        return tomcat;
    }
    private Connector createSslConnector() {
        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
        Http11NioProtocol protocol = (Http11NioProtocol) connector.getProtocolHandler();
        try {
            File keyStoreFile = new ClassPathResource(keyStore).getFile();
            connector.setScheme("https");
            connector.setSecure(true);
            connector.setPort(httpsPort);
            protocol.setSSLEnabled(true);
            protocol.setKeystoreFile(keyStoreFile.getAbsolutePath());
            protocol.setKeystorePass(kayStorePassword);
            protocol.setKeyAlias(kayAlias);
            return connector;
        }
        catch (IOException ex) {
            throw new IllegalStateException("can't access keystore: [" + "keystore"
                    + "] or truststore: [" + "keystore" + "]", ex);
        }
    }
}

测试

访问：http://localhost:9000/hello

访问：https://localhost:9443/hello

其他网址

SpringBoot 2安装SSL配置HTTPS，实现HTTP自动跳转HTTPS或同时支持访问 - 码问

# https # http # restful
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