Some problems with creating projects on springboot official website

https://start.spring.io/

Can't connect, you can use your mobile phone as a hotspot, then you can connect

Download the project, open the first line of the pom and report an error, the error content is unknow

It can be configured as follows:

    <properties>
        <java.version>1.8</java.version>
        <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
    </properties>