IntelliJ无法找到google-cloud-storage类

Question

I'm trying to use Google cloud storage and I'm following this guide: https://cloud.google.com/storage/docs/reference/libraries#using_the_client_library

I'm using Java with Maven, and this is my Pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.findwise.app</groupId>
    <artifactId>data-pipeline</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <dependency>
          <groupId>com.google.cloud</groupId>
          <artifactId>google-cloud-pubsub</artifactId>
          <version>0.32.0-beta</version>
        </dependency>
        <dependency>
          <groupId>com.google.cloud.dataflow</groupId>
          <artifactId>google-cloud-dataflow-java-sdk-all</artifactId>
          <version>2.2.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.cloud</groupId>
            <artifactId>google-cloud-storage</artifactId>
            <version>1.70.0</version>
        </dependency>
    </dependencies>
</project>

As you can see I've added the google-cloud-storage dependency. My problem is that the classes used in the Java part of the guide ( Storage , StorageOptions , Bucket , BucketInfo ) are unfindable by IntelliJ. I can't import them. In fact, when I try to import via the absolute path:

import com.google.cloud.storage.Storage;

IntelliJ complains that the symbol google cannot be resolved. What is wrong here?

Answer 1

There are a few places to look:

1. Find your local .m2 repository and navigate to the com.google.cloud dependencies. If you don't find it, or the JARs aren't there, IntelliJ won't be able to access them.
2. IntelliJ will show you the External Libraries it is using under your source code in the project panel on the left.

If IntelliJ cannot import the class, it suggests that your Maven pull isn't working.