NoClassDefFoundError: org/apache/http/ssl/SSLContexts

添加依赖接口解决

<dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpcore</artifactId>
                <version>4.4</version>
            </dependency>

            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>4.5.2</version>
            </dependency>