问题描述
如何通过连接的电缆使J2ME Midlet与PC上的Java程序或某些应用程序通信?
How do I make a J2ME Midlet to communicate with a java program or some application on the pc through the cable connected?
推荐答案
Incredible_Honk几乎正确.关键是使用(标准)系统属性"microedition.commports".这提供了以逗号分隔的COM端口列表，这些端口可用于您的应用程序.要打开连接，请按以下步骤使用CommConnection:
Incredible_Honk is almost right. The key is to use the (standard) system property "microedition.commports". This provides a comma delimited list of the com ports which are available to your application. To open a connection use CommConnection as follows:
CommConnection con = (CommConnection) Connector.open("com:<commport name>");
通常，这将提供对USB串行连接的访问，如果可能的话，也可以通过红外线进行访问.遍历每个对象，以查看与您要查找的连接相对应的对象.
Usually this will provide access to a USB serial connection, possibly also infrared if available. Iterate through each one to see which one corresponds to the connection you're looking for.
至少在Windows上，您需要首先为手机安装正确的驱动程序.然后，这将允许您打开串行连接并与应用程序通信.
On Windows at least, you will need to install the correct drivers for your handset first. This will then allow you to open a serial connection and communicate with the application.
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