idea自动生成spring实体

创建Spring Boot项目

idea创建新项目

File->New->Project选择Spring Initializr默认使用官方的https://start.spring.io/选择下一步。

groupId: com.axd

artifactId: spring_boot_jpa

name: spring_boot_jpa

Type: Maven Project

Java Version: 1.8

packaging: Jar

点击下一步选择web，创建一个新的项目

在pom.xml配置jap的依赖

<!-- Spring Boot jpa 依赖 -->
<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.axd</groupId>
    <artifactId>spring_boot_jpa</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring_boot_jpa</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <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-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.13</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>
    </dependencies>

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

</project>

!pom.xml具体配置()

application.properties配置

spring.datasource.url=jdbc:mysql://192.168.80.129:3306/db_linkbiz
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.show-sql=true

配置自动生成目录

添加数据库

配置好之后测试链接成功

persistence添加

View->Tool Windows->persistence，默认找不到，需要设置一下。

添加Hibernate之后，如果没有就下载。

再次打开就可以看到persistence

生成实体类

如果粗线这种报错，则需要增加一个配置

增加

重新创建

创建Repository

继承JpaRepository，不需要写实现，默认一些增删改查

controller调用

请求localhost:8080/advert/content/all

返回目录