Because each service will likely require JDBC, reference libraries, systems users, and messaging functionality, add these requirements to the deployment topology.
由于每个服务可能都需要JDBC、引用库、系统用户和消息传递功能,所以要将这些需求添加到部署拓扑中。
Proxies have many applications, such as wrapping legacy systems, adapting interfaces to libraries, and managing copies of the real object.
代理有很多用处,比如包装遗留系统、调整库的接口、管理实际对象的副本等。
In this example, only one C file is used, but in large systems, typically various libraries are built and finally linked to build the executable file.
在这个例子中,只有一个 C 文件被使用,但是在较大的系统中,通常是各种数据库被建立,最终连接到这个可执行文件中。
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