Big data IDEA debug flink program

Flink development in IDEA is a relatively difficult thing, there is no reference materials on the Internet, even if the employment is too general, I do not know if it will not say or will not talk nonsense, in order to solve the problem of flink, I specially made a simple description of the development. Mainly consider two issues: 1, the construction of the language environment. 2. The flink code is compiled and run.

For more video materials of big data, please add QQ group: 947967114 first solve the first problem:

To create a maven environment, the configuration of maven is not described. In other words, before reading this article, you should first make sure that the maven under IDEA is normal:

[if! supportLists] 1 and [endif] create a maven project: file-new-project-Maven (pull to the lowest change to find scala-archetype-simple) as shown below:

[if! supportLists] 2, [endif] set GroupId and ArtifacId:

[if! supportLists] 3, [endif] pay attention to the maven environment you download:

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The environmental conditions you will see after the configuration is completed are as follows

[if! supportLists] 2 and [endif] configure the environment of scala. I have added the environment of spark:

File-Project Structure-Libraries-+Scala SDK: select the scala version of the windows you installed:

Add spark environment (may not be added): File-Project Structure-Libraries-+---java

[if! supportLists] 3, [endif] the key point is to configure the flink environment: File-Project Structure-Libraries-+---java selects the flink that you download. Here you need to add two packages: one is the lib package and the other is the opt package. After that, OK determines:

We see that the environment we choose is like this:

At this point we see that the environment and dependency packages of our project look like this:

But it cannot be developed yet. It is necessary to set up the directory: main right, Make Drectory As--Source Root to get more big data video materials, please add QQ group: 947967114

You can now create the flink program in the main package:

A test program and the running results are as follows:

Friends, if you are also successful, please applaud yourself! IT is endless, come on! For more video information of big data, please add QQ group: 947967114