下载错误

在设置了阿里去代理服务器后，下载的时候总是提示如下错误：

下面为pom.xml配置文件

相关代码：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.imooc</groupId>
  <artifactId>maven</artifactId>
  <version>1.0.0-RELEASE</version>
  
  <repositories>
  	<repository>
	  	<id>aliyun</id>
	  	<name>aliyun</name>
	  	<url>https://maven.aliyun.com/repository/public</url>  	
  	</repository>
  </repositories>
  
  <dependencies>
	<dependency>
	  <groupId>mysql</groupId>
	  <artifactId>mysql-connector-java</artifactId>
	  <version>8.0.28</version>
	</dependency>
	
	<dependency>
	  <groupId>com.belerweb</groupId>
	  <artifactId>pinyin4j</artifactId>
	  <version>2.5.1</version>
	</dependency>
	
	<dependency>
	  <groupId>org.springframework</groupId>
	  <artifactId>spring-web</artifactId>
	  <version>6.0.0</version>
	</dependency>
	
	<dependency>
	  <groupId>org.springframework</groupId>
	  <artifactId>spring-webmvc</artifactId>
	  <version>6.0.0</version>
	</dependency>		
  </dependencies>
</project>