Idea创建Springboot项目

淡淡的烟草味﹌ 2024-03-22 23:04 32阅读 0赞

1.新建项目

![7f9501a42c8b45be8f41308b76c50c2e.png][]

2. 选择对应的版本

![460127f8ed83495d954862e5d383c4e9.png][]

3.看jdk版本是否为8![4b01d37b5801447fb80acbef5d2065e6.png][]

![651ce919859849bfbc2eda7663368e9c.png][]

4.看本地maven是否配置成功

![ac814992e9754329824301eea2b02b6e.png][]

![9384be1eb892455e82a3a4b15d8d15af.png][] 5.pom.xml文件

<?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>2.7.6</version>
            <relativePath/>
        </parent>
        <groupId>com.hnyc</groupId>
        <artifactId>demo3</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>demo3</name>
        <description>demo3</description>
        <properties>
            <java.version>8</java.version>
        </properties>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>3.4.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
                <version>5.3.24</version>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>RELEASE</version>
                <scope>compile</scope>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>8.0.27</version>
            </dependency>
        </dependencies>
        <repositories>
            
            <repository>
                <id>aliyun</id>
                <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            </repository>
        </repositories>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <configuration>
                        <testFailureIgnore>true</testFailureIgnore>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </project>

6.application.yml

# 开发环境配置
    server:
      # 服务器的HTTP端口，默认为8080
      port: 8081
      servlet:
        # 应用的访问路径
        context-path: /
      tomcat:
        # tomcat的URI编码
        uri-encoding: UTF-8
        # 连接数满后的排队数，默认为100
        accept-count: 1000
        threads:
          # tomcat最大线程数，默认为200
          max: 800
          # Tomcat启动初始化的线程数，默认值10
          min-spare: 100
    
    # MyBatis配置
    mybatis:
      # 搜索指定包别名
      mapper-locations: classpath:/mapper/**/**Mapper.xml
      #实体扫描，多个package用逗号或者分号分隔
      typeAliasesPackage: com.hnyc.entity
      global-config:
        #刷新mapper 调试神器
        db-config:
          #主键类型  0:"数据库ID自增", 1:"用户输入ID",2:"全局唯一ID (数字类型唯一ID)", 3:"全局唯一ID UUID";
          id-type: ID_WORKER_STR
      configuration:
        map-underscore-to-camel-case: true
        cache-enabled: false
    # PageHelper分页插件
    pagehelper:
      helperDialect: mysql
      supportMethodsArguments: true
      params: count=countSql
    
    mybatis-plus:
      configuration:
        log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    
    # 数据源配置
    spring:
      datasource:
        url: jdbc:mysql://localhost:3306/cand_1?useSSL=false&autoReconnect=true&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&serverTimezone=Asia/Shanghai
        username: root
        password: 123456
        driver-class-name: com.mysql.cj.jdbc.Driver

7.启动类

import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.Configuration;
    
    @MapperScan("com.hnyc.mapper.*")
    @ComponentScan(basePackages = {"com.hnyc.*"})
    @Configuration
    @SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
    public class Demo3Application {
    
        public static void main(String[] args) {
            SpringApplication.run(Demo3Application.class, args);
        }
    
    }

[7f9501a42c8b45be8f41308b76c50c2e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/14/f3c25073314a42e39465b8ddceeab7a6.png
[460127f8ed83495d954862e5d383c4e9.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/14/efeb525c24f34ccdbaec7008f5a1c63b.png
[4b01d37b5801447fb80acbef5d2065e6.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/14/320ce9b5b2c549b2a266eef43e4e31fc.png
[651ce919859849bfbc2eda7663368e9c.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/14/7ae474f33b0c4e1fbcf485a218140d43.png
[ac814992e9754329824301eea2b02b6e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/14/595fc2de443747ad8af4c02c8c12a7c8.png
[9384be1eb892455e82a3a4b15d8d15af.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/14/8b2d415c6caf4153b85e0b45aacbd237.png