java – 限制访问Spring MVC控制器 – 一次N个会话

在应用程序启动时,您应该创建一个包含许可证或商业库对象的对象池(不确定它们具有哪种公共接口).

public class CommercialObjectFactory extends BasePoolableObjectFactory { 
    // for makeObject we'll simply return a new commercial object
    @Override
    public Object makeObject() { 
        return new CommercialObject(); 
    } 
}

GenericObjectPool pool = new GenericObjectPool(new CommercialObjectFactory());

// The size of pool in our case it is N
pool.setMaxActive(N) 
// We want to wait if the pool is exhausted
pool.setWhenExhaustedAction(GenericObjectPool.WHEN_EXHAUSTED_BLOCK)

当你需要代码中的商业对象时.

CommercialObject obj = null;
try { 
    obj = (CommercialObject)pool.borrowObject();

    // use the commerical object the way you to use it.
    // ....

} finally { 
    // be nice return the borrwed object
    try {
        if(obj != null) {
            pool.returnObject(obj);
        }
    } catch(Exception e) {
        // ignored
    }
}

如果这不是您想要的,那么您需要提供有关商业图书馆的更多详细信息.