Spring Boot annotation @GetMapping can not be resolved to a type

Question

I tried creating a Spring Project from Spring Initializr for the first time in my local computer. But I am getting these errors @GetMapping cannot be resolved to a type.

My pom.xml file-

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.4.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>



<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jersey</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>

    </dependency>

    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>

</dependency>


    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

Can someone help me with this? Is there some dependency I am missing?

Solution 1

You have all dependenices which required for spring boot to run and I used your same pom and its worked, few points:

1. If you have

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-web</artifactId>
   </dependency>
   

then not required:

 <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>

    </dependency>

    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>

</dependency>

you can delete these dependencies as starter includes it.

2. Also add maven plugin

   <build>
           <plugins>
               <plugin>
                   <groupId>org.springframework.boot</groupId>
                   <artifactId>spring-boot-maven-plugin</artifactId>
               </plugin>
           </plugins>
       </build>
   

and after this from command line: run mvn clean install 3. then try to rebuild project 4. if still do not work then move your starter-web as first dependency and again check.

Solution 2

Under file -> Invalidate caches->check(Clear file system cache and Local History, Cleared downloaded shared indexes) enter image description here

Comments

[Andy Wilkinson]

@GetMapping is in spring-web which you are already depending upon. In fact, you are depending on it more than once as both it and spring-webmvc are dependencies of spring-boot-starter-web. I would guess that Maven has corrupted the spring-web jar when it downloaded it. Try deleting it from Maven's cache and rebuilding your application.

[Darren Forsythe]

Likely a corrupted maven download, try running mvn dependency:purge-local-repository or go and delete the .m2/repository/org/springframework/spring-web folder and update or compile your maven project again

[Kshitiz Sharma]

Hello @DarrenForsythe . I tried deleting the the spring-web dependency from the maven repository manually. And rebuilt the project. But the error still persists.

[Kshitiz Sharma]

Hello @AndyWilkinson I tried rebuilding the project after deleting the jar. But the error is still there. This is my first spring project.

[Andy Wilkinson]

Can you share the code that's using @GetMapping? Perhaps you're missing an import statement or the package is incorrect.

[Andy Wilkinson]

I don't think this'll help. The question says that Spring Initializr was used and spring-boot-starter is already being used as it's a dependency of spring-boot-starter-web. Even if it wasn't, depending on spring-boot-starter wouldn't fix the problem as @GetMapping is part of spring-boot-starter-web.

[Kshitiz Sharma]

I tried all the things you mentioned. But the error still persits.

[Jerry]

I having the same issue. @GetMapping isn't resolved. I tried this solution, but it's not working.