SpringBoot常用场景依赖，及相关YAML配置

 

SpringBoot 项目搭建基础依赖

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.4.RELEASE</version>
    </parent>


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

    </dependencies>

lombok

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

dev-Tools

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>

自定义bean的提示功能

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>

<--打包时不打包这个处理器-->
 <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.springframework.boot</groupId>
                            <artifactId>spring-boot-configuration-processor</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

YAML 开启页面表单的Rest功能

spring:
  mvc:
    hiddenmethod:
      filter:
        enabled: true   #开启页面表单的Rest功能

开启基于请求参数的内容协商功能

spring:
    contentnegotiation:
      favor-parameter: true  #开启请求参数内容协商模式

JDBC场景引入

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

MySQL驱动导入

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.49</version>
        </dependency>

想要修改版本
1、直接依赖引入具体版本（maven的就近依赖原则）
2、重新声明版本（maven的属性的就近优先原则）
    <properties>
        <mysql.version>5.1.49</mysql.version>
    </properties>

druid场景引入

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.17</version>
        </dependency>

YAML数据源配置

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/db_account
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver

    druid:
      aop-patterns: com.atguigu.admin.*  #监控SpringBean
      filters: stat,wall     # 底层开启功能，stat（sql监控），wall（防火墙）

      stat-view-servlet:   # 配置监控页功能
        enabled: true
        login-username: admin
        login-password: admin
        resetEnable: false

      web-stat-filter:  # 监控web
        enabled: true
        urlPattern: /*
        exclusions: '*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'


      filter:
        stat:    # 对上面filters里面的stat的详细配置
          slow-sql-millis: 1000
          logSlowSql: true
          enabled: true
        wall:
          enabled: true
          config:
            drop-table-allow: false

MyBatis场景引入

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>

MyBatis Plus 场景引入

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.1</version>
        </dependency>

数据源连接配置

//mysql8以上（spring boot 2.1）

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/mybatis_plus?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=199891



spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/mybatis_plus
spring.datasource.username=root
spring.datasource.password=199891

开启sql输出日志

mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

全局设置主键生成策略

mybatis-plus.global-config.db-config.id-type=auto

自动填充组件

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {

private static final Logger LOGGER =
LoggerFactory.getLogger(MyMetaObjectHandler.class);

@Override
public void insertFill(MetaObject metaObject) {
LOGGER.info("start insert fill ....");
this.setFieldValByName("createTime", new Date(), metaObject);
this.setFieldValByName("updateTime", new Date(), metaObject);
}

@Override
public void updateFill(MetaObject metaObject) {
LOGGER.info("start update fill ....");
this.setFieldValByName("updateTime", new Date(), metaObject);
}
}

乐观锁插件

public class MybatisPlusConfig {

/**
* 乐观锁插件
*/
@Bean
public OptimisticLockerInterceptor optimisticLockerInterceptor() {
return new OptimisticLockerInterceptor();
}
}

逻辑删除插件

@Bean
public ISqlInjector sqlInjector() {
return new LogicSqlInjector();
}

逻辑删除默认值配置

mybatis-plus.global-config.db-config.logic-delete-value=1 
mybatis-plus.global-config.db-config.logic-not-delete-value=0

Redis场景引入

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

Jedis依赖导入

   <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
   </dependency>

YAML 配置Jedis

spring:
  redis:
      host: r-bp1nc7reqesxisgxpipd.redis.rds.aliyuncs.com
      port: 6379
      password: lfy:Lfy123456
      client-type: jedis
      jedis:
        pool:
          max-active: 10

Test场景引入

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

junit4依赖导入

SpringBoot 2.4 以上版本移除了默认对 Vintage 的依赖。如果需要兼容junit4需要自行引入
（不能使用junit4的功能 @Test）

<dependency>
    <groupId>org.junit.vintage</groupId>
    <artifactId>junit-vintage-engine</artifactId>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>org.hamcrest</groupId>
            <artifactId>hamcrest-core</artifactId>
        </exclusion>
    </exclusions>
</dependency>

指标监控场景引入

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

YAML文件指定xml文件路径

# 配置mybatis规则
mybatis:
#  config-location: classpath:mybatis/mybatis-config.xml
  mapper-locations: classpath:mybatis/mapper/*.xml
  configuration:
    map-underscore-to-camel-case: true
    
 可以不写全局；配置文件，所有全局配置文件的配置都放在configuration配置项中即可