如果你的公司正在建立一个防火墙，并使用HTTP代理服务器来阻止用户直接连接到互联网。如果您使用代理，Maven将无法下载任何依赖。
为了使它工作，你必须声明在 Maven 的配置文件中设置代理服务器：settings.xml.
1. Maven配置文件
找到文件 {M2_HOME}/conf/settings.xml, 并把你的代理服务器信息配置写入。注：{M2_HOME}
=> D:\software\yiibai.com\apache-maven
{M2_HOME}/conf/settings.xml
|
<!-- proxies
| This is a list of proxies which can be
used on this machine to connect to the network.
| Unless otherwise specified (by system
property or command-line switch), the first
proxy
| specification in this list marked as active
will be used.
|-->
<proxies>
<!-- proxy
| Specification for one proxy, to be used
in connecting to the network.
|
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<username>proxyuser</</username>
<password>proxypass</password>
<host>proxy.host.net</host>
<port>80</port>
<nonProxyHosts> local.net|some.host.com< /nonProxyHosts>
</proxy>
-->
</proxies>
|
取消注释代理选项，填写您的代理服务器的详细信息。
|
<!-- proxies
| This is a list of proxies which can be
used on this machine to connect to the network.
| Unless otherwise specified (by system
property or command-line switch), the first
proxy
| specification in this list marked as active
will be used.
|-->
<proxies>
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<username>yiibai</username>
<password>password</password>
<host>proxy.yiibai.com</host>
<port>8888</port>
<nonProxyHosts> local.net|some.host.com</nonProxyHosts>
</proxy>
</proxies>
|
2. 保存文件
完成后，Apache Maven 应该是能够通过代理服务器立即连接到Internet。
注意：重新启动不是必需的。Maven 只是一个命令，当你调用它，它会再次读取该文件。
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