idea+sprinboot+postgres创建WEB项目

1、新建项目

 2选择SpringBoot 版本和需要的依赖。新手要注意与jdk的版本要一致。（jdk1.8+springboot2.6.13）

 

 3创建模块，（设置--项目结构--项目设置--模块，点右边的 + 号）

 附：

 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><groupId>com.lingrui</groupId><artifactId>admin</artifactId><version>0.0.1-SNAPSHOT</version><name>admin</name><description>admin</description><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring-boot.version>2.7.12</spring-boot.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><!-- Spring Boot JPA启动器 - 提供ORM相关功能 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jpa</artifactId></dependency><!-- Spring Boot Web启动器 - 提供Web开发相关功能 --><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><!-- PostgreSQL数据库驱动 - 用于连接PostgreSQL数据库 --><dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><scope>runtime</scope>  <!-- 运行时依赖，编译时不需要 --></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.10.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>${spring-boot.version}</version><configuration><mainClass>com.lingrui.admin.AdminApplication</mainClass><skip>true</skip></configuration><executions><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build></project>

application.yml

server:port: 8099
# Spring框架配置
spring:# 数据源配置 - 连接数据库的相关设置datasource:# 数据库连接URL，指定数据库类型、主机地址、端口和数据库名url: jdbc:postgresql://localhost:5432/clientinfo# 数据库用户名username: postgres# 数据库密码password: 123456# 数据库驱动类名driver-class-name: org.postgresql.Driver# JPA配置 - Java持久化API相关设置jpa:# Hibernate配置 - ORM框架相关设置hibernate:# DDL自动更新策略，update表示根据实体类自动更新数据库表结构ddl-auto: update# 是否在控制台显示SQL语句show-sql: true# Hibernate属性配置properties:hibernate:# 指定Hibernate方言，用于生成特定数据库的SQL语句dialect: org.hibernate.dialect.PostgreSQLDialect