Spring 引导项目未从数据库重新加载数据

Question

i have been working on a full stack application using angular and spring boot for the first time (i'm following a full project tutorial),

i downloaded a project from https://start.spring.io/ and added the following dependencies; mySQL driver, lombok, spring data JPA and REST repositories.after working on my project and executing it,i found out that the data are not loaded from the database (PS: database not empty): and here's my execution result

: while this is the tutor's result

i ingore it and tried to consume the data in the front end using angular and this is my result

while this is my tutor's results

i'll share with you my application propreties here:

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/full-stack-ecommerce?useSSL=false&useUnicode=yes&characterEncoding=UTF-8&allowPublicKeyRetrieval=true&serverTimezone=UTC
spring.datasource.username=ecommerceapp
spring.datasource.password=ecommerceapp

spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect

spring.data.rest.base-path=/api

server.port=9091

and 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.luv2code</groupId>
    <artifactId>spring-boot-ecommerce</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-boot-ecommerce</name>
    <description>Spring Boot Ecommerce Project</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency> 
                    <groupId>org.hibernate</groupId> 
                    <artifactId>hibernate-core</artifactId> 
                     
</dependency>
<dependency> 
                      <groupId>org.hibernate</groupId> 
                      <artifactId>hibernate-entitymanager</artifactId> 
                      </dependency>
<dependency> 
                        <groupId>javax.xml.bind</groupId> 
                        <artifactId>jaxb-api</artifactId> 
                        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

i truly appreciate any help

Answer 1

Im doing exactly the same Chad project now, everything works, Java 17 and spring 2.6.1

here is application properties (i changed username, password):

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/full-stack-ecommerce?useSSL=false&useUnicode=yes&characterEncoding=UTF-8&allowPublicKeyRetrieval=true&serverTimezone=UTC
spring.datasource.username=angfullecom
spring.datasource.password=angfullecom

spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect

spring.data.rest.base-path=/api

As you see i dont have your line: server.port=9091

my pom file:

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.ilze</groupId>
    <artifactId>full-ang-ecommerce</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>full-ang-ecommerce</name>
    <description>Spring Boot Angular Ecommerce Project</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </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>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

Did you accessed the project using address http://localhost:8080/api/products?