Azure WebJobs-未找到功能-如何进行无触发器作业? [英] Azure WebJobs - No functions found - How do I make a trigger-less job?

问题描述

我是Azure WebJobs的新手，我运行了一个示例，其中用户将图像上载到Blob存储并将记录插入到队列中，然后作业从队列中检索该记录作为信号，以执行调整大小的操作上传的图片.基本上，在代码中，作业使用公共静态方法上的QueueTrigger属性来完成所有操作.

I'm new to Azure WebJobs, I've run a sample where a user uploads an image to blob storage and inserts a record into the Queue, then the job retrieves that from the queue as a signal to do something like resizing the uploaded image. Basically in the code the job uses QueueTrigger attribute on a public static method to do all that.

现在，我需要一项工作，该工作每小时执行一次操作，例如将记录插入数据库表中，它没有任何类型的触发器，它本身就可以运行.我该怎么办?

Now I need a job that just does something like inserting a record into a database table every hour, it does not have any type of trigger, it just runs itself. How do I do this?

我试图有一个静态方法，在其中我执行了对db的插入操作，虽然确实开始了工作，但是却收到一条消息，提示:

I tried to have a static method and in it I do the insert to db, the job did start but I got a message saying:

未找到功能.尝试公开职业分类和方法公开 静态的.

No functions found. Try making job classes public and methods public static.

我想念什么?

修改 Victor回答后，我尝试了以下方法，

Edit After Victor's answer I tried the following,

static void Main()
{
    JobHost host = new JobHost();
    host.Call(typeof(Program).GetMethod("ManualTrigger"));
}

[NoAutomaticTrigger]
public static void ManualTrigger()
{
    // insert records to db
}

但是这次我得到了InvalidOperationException

无法从Azure WebJobs SDK调用'Void ManualTrigger()'.是否缺少Azure WebJobs SDK属性?

'Void ManualTrigger()' can't be invoked from Azure WebJobs SDK. Is it missing Azure WebJobs SDK attributes?

推荐答案

如果您不使用WebJobs SDK中的任何输入/输出属性(QueueTrigger，Blob，Table等)，则必须使用NoAutomaticTrigger SDK可以识别的属性.

If you don't use any input/output attributes from the WebJobs SDK (QueueTrigger, Blob, Table, etc), you have to decorate the job with the NoAutomaticTrigger Attribute to be recognized by the SDK.

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