Spring Boot工程支持HTTP和HTTPS，HTTP重定向HTTPS

来自： http://my.oschina.net/freegarden/blog/609975

1- 使用HTTPS连接器，需要生成一份Certificate keystore，用于加密和机密浏览器的SSL沟通

# windows:  keytool -genkeypair -alias "tomcat" -keyalg "RSA" -keystore "d:\\1.keystore"    # linux:  keytool -genkey -alias tomcat -keyalg RSA  # 执行完上述命令后在home目录下多了一个新的.keystore文件

2- 新增属性文件 tomcat.https.properties

    类比

<!-- Define an SSL HTTP/1.1 Connector on port 443 -->  <Connector className="org.apache.catalina.connector.http.HttpConnector"   port="443" minProcessors="5" maxProcessors="75"  keystoreFile="path.to.keystore"  enableLookups="true"  acceptCount="10" debug="0" scheme="https" secure="true">  <Factory className="org.apache.catalina.net.SSLServerSocketFactory"  clientAuth="false" protocol="TLS" keystorePass="keystore.password"/>  </Connector>

custom.tomcat.https.port=443  custom.tomcat.https.secure=true  custom.tomcat.https.scheme=https  custom.tomcat.https.ssl=true  custom.tomcat.https.keystore=d:\\1.keystore  custom.tomcat.https.keystore-password=xinli2016

3- 新增配置 JAVA代码

package cn.com.xinli.conf;    import java.io.File;    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.context.embedded.EmbeddedServletContainerFactory;  import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;  import org.springframework.boot.context.properties.ConfigurationProperties;  import org.springframework.boot.context.properties.EnableConfigurationProperties;  import org.springframework.context.annotation.Bean;  import org.springframework.context.annotation.Configuration;  import org.springframework.context.annotation.PropertySource;  import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;    @Configuration  @PropertySource("classpath:/tomcat.https.properties")  @EnableConfigurationProperties(WebConfiguration.TomcatSslConnectorProperties.class)  public class WebConfiguration extends WebMvcConfigurerAdapter {     @Bean   public EmbeddedServletContainerFactory servletContainer(TomcatSslConnectorProperties properties) {    TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory() {     @Override     protected void postProcessContext(Context context) {      // SecurityConstraint必须存在，可以通过其为不同的URL设置不同的重定向策略。      SecurityConstraint securityConstraint = new SecurityConstraint();      securityConstraint.setUserConstraint("CONFIDENTIAL");      SecurityCollection collection = new SecurityCollection();      collection.addPattern("/*");      securityConstraint.addCollection(collection);      context.addConstraint(securityConstraint);     }    };    tomcat.addAdditionalTomcatConnectors(createSslConnector(properties));    return tomcat;   }     private Connector createSslConnector(TomcatSslConnectorProperties properties) {    Connector connector = new Connector();    properties.configureConnector(connector);    return connector;   }     @ConfigurationProperties(prefix = "custom.tomcat.https")   public static class TomcatSslConnectorProperties {    private Integer port;    private Boolean ssl = true;    private Boolean secure = true;    private String scheme = "https";    private File keystore;    private String keystorePassword;      // 省略 get set        public void configureConnector(Connector connector) {     if (port != null) {      connector.setPort(port);     }     if (secure != null) {      connector.setSecure(secure);     }     if (scheme != null) {      connector.setScheme(scheme);     }     if (ssl != null) {      connector.setProperty("SSLEnabled", ssl.toString());     }     if (keystore != null && keystore.exists()) {      connector.setProperty("keystoreFile", keystore.getAbsolutePath());      connector.setProperty("keystorePass", keystorePassword);     }    }     }    }