Spring Boot - javax Import statements not working correctly

Question

I just started working with Spring Boot , and am currently following this tutorial with some small modifications to naming and using their own version of Eclipse , which has this generator built in.

When I get to the first snippet of code, I try just copying over the import statements to start with,

import com.fasterxml.jackson.annotation.JsonIgnore;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import java.util.HashSet;
import java.util.Set;

which gets me the following error with the javax imports:

The import javax.persistence.[insert name here] cannot be resolved

When I find the javax.persistence package, I find that, sure enough, the starter code provided from their own service does not contain the listed packages. I'm left confused and wondering if I did something wrong in the initial steps. Anyone have any ideas?

Edit 1: pom content provided

<?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.Me</groupId>
<artifactId>petstore</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>petstore</name>
<description>Petstore Project</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.5.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
</properties>

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

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

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

Answer 1

Add spring-boot-starter-data-jpa dependency

If you are using Maven add to pom.xml

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

If you are using Gradle add in build.gradle

compile "org.springframework.boot:spring-boot-starter-data-jpa"

for other refer this .

Answer 2

Please refer the docs. https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.3-Release-Notes

As of #19550, Web and WebFlux starters do not depend on the validation starter by default anymore. If your application is using validation features, for example you find that javax.validation.* imports are not being resolved, you'll need to add the starter yourself.

For Maven builds, you can do that with the following:

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

For Gradle, you will need to add something like this:

 dependencies { ... implementation 'org.springframework.boot:spring-boot-starter-validation' }

Answer 3

In my case i have added below spring boot data dependency but still not be able to import javax.persistence.*

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

I realized that eclipse somehow not be able to adding this dependencies to my classpath. Firstly i tried right click on the project Maven>Update Project but still not worked. Then I execute mvn eclipse:eclipse inside the root directory and then after successful build i refreshed project in the eclipse. This time it worked.

Answer 4

Add this dependency in you pom.xml

<dependency>
    <groupId>org.hibernate.javax.persistence</groupId>
    <artifactId>hibernate-jpa-2.0-api</artifactId>
    <version>1.0.1.Final</version>
</dependency>

After that Right click on your project and in maven option update your project. That should fix it.

Answer 5

I had the same issue, but previous solutions didn't work for me. I do solve the issue by adding following dependency to POM file.

<!-- https://mvnrepository.com/artifact/javax.persistence/javax.persistence-api -->
<dependency>
    <groupId>javax.persistence</groupId>
    <artifactId>javax.persistence-api</artifactId>
    <version>2.2</version>
</dependency>

Answer 6

Perhaps this will help someone: apparently Java persistence api is renamed to Jakarta persistence. So you will have to import Jakarta persistence instead of javax.persistence.