创建sprngboot项目

生成项目

https://start.spring.io/

项目依赖

<?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 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>2.0.0.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.hd</groupId>
	<artifactId>vmds</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>vmds</name>
	<description>Demo</description>

	<!-- 配置java版本(必配) -->
	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<!--核心 POM，包含自动配置支持、日志库和对 YAML 配置文件的支持-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>

		<!--核心 POM，包含自动配置支持、日志库和对 YAML 配置文件的支持-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions>
		</dependency>

		<!--支持使用 JDBC 访问数据库-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>

		<!-- springboot的启动依赖(集成tomcat)  -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<!--mybatis-->
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.1.1</version>
		</dependency>

		<!--Druid-->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid-spring-boot-starter</artifactId>
			<version>1.1.10</version>
		</dependency>

		<!--mysql-->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>

		<!--Junit-->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

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

</project>

配置

create file application.yml

server:
  port: 8080
 
spring:
  datasource:
      username: root
      password: 123456
      url: jdbc:mysql://localhost:3306/nnobita?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
      driver-class-name: com.mysql.jdbc.Driver
      type: com.alibaba.druid.pool.DruidDataSource
      druid:
        initial-size: 8
        min-idle: 1
        max-active: 20
        max-wait: 60000
        time-between-eviction-runsMillis: 60000
        min-evictable-idle-timeMillis: 300000
        validation-query: select 'x' FROM DUAL
        test-while-idle: true
        test-on-borrow: false
        test-on-return: false
        pool-prepared-statements: true
        max-open-prepared-statements: 20
        max-pool-prepared-statement-per-connection-size: 20
        filters: stat
        connection-properties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
        use-global-data-source-stat: true
 
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.hd.entity

logging:
  config: classpath:logback-spring.xml
  # 这里可以是包名也可以是类名
  # DEBUG<INFO<WARN<ERROR<FATAL
  level:
    com:
      hd:
        dao : debug

logback配置

<?xml version="1.0" encoding="UTF-8" ?>
<configuration>

    <!--0. 日志格式和颜色渲染 -->
    <!-- 彩色日志依赖的渲染类 -->
    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
    <conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
    <!-- 彩色日志格式 -->
    <property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>

    <!-- 配置控制台输出 -->
    <appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
        <!--此日志appender是为开发使用，只配置最底级别，控制台输出的日志级别是大于或等于此级别的日志信息-->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>debug</level>
        </filter>
        <encoder>
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            <!-- 设置字符集 -->
            <charset>UTF-8</charset>
        </encoder>
    </appender>

    <!-- 配置文件输出(Info)-->
    <appender name="fileInfoLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
        </encoder>
        <!-- 滚动策略-->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- 文件位置 -->
            <fileNamePattern>e:/log/info-%d.log</fileNamePattern>
        </rollingPolicy>
    </appender>

    <!-- 配置文件输出（Error）-->
    <appender name="fileErrorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!--添加 范围 过滤-->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERROR</level>
        </filter>
        <encoder>
            <pattern>%d -- %msg%n</pattern>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>e:/log/error-%d.log</fileNamePattern>
        </rollingPolicy>
    </appender>

    <root level="info">
        <appender-ref ref="consoleLog" />
        <appender-ref ref="fileInfoLog" />
        <appender-ref ref="fileErrorLog" />
    </root>
</configuration>

Druid配置类

/**
 * druid监控
 */
@Configuration
public class DruidConfiguration {
    @Bean
    public ServletRegistrationBean statViewServlet() {
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        //白名单：
        servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
        //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的即提示:Sorry, you are not permitted to view this page.
        servletRegistrationBean.addInitParameter("deny", "192.168.1.100");
        //登录查看信息的账号密码.
        servletRegistrationBean.addInitParameter("loginUsername", "druid");
        servletRegistrationBean.addInitParameter("loginPassword", "12345678");
        //是否能够重置数据.
        servletRegistrationBean.addInitParameter("resetEnable", "false");
        return servletRegistrationBean;
    }

//    @Bean
//    public FilterRegistrationBean statFilter() {
//        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
//        //添加过滤规则.
//        filterRegistrationBean.addUrlPatterns("/*");
//        //添加不需要忽略的格式信息.
//        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
//        return filterRegistrationBean;
//    }

    @Bean
    PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

    //配置数据库的基本链接信息
//    @Bean(name = "dataSource")
//    @Primary
//    @ConfigurationProperties(prefix = "spring.datasource")    //可以在application.properties中直接导入
//    public DataSource dataSource() {
//        return DataSourceBuilder.create().type(com.alibaba.druid.pool.DruidDataSource.class).build();
//    }

//    @Bean
//    public SqlSessionFactoryBean sqlSessionFactory(@Qualifier("dataSource") DataSource dataSource) throws Exception {
//        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
//        bean.setDataSource(dataSource);
//        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
//        bean.setMapperLocations(resolver.getResources("classpath:/mappers/*.xml"));
//        return bean;
//    }
}

启动类

• @MapperScan：扫描dao接口

@MapperScan("com.hd.dao")
@SpringBootApplication
public class VmdsApplication {

	public static void main(String[] args) {
		SpringApplication.run(VmdsApplication.class, args);
	}

}

entity

package com.hd.entity;

public class Device {
    private int device_id;
    private String device_name;
    private int device_num;
    private String curr_vers;
    。。。
}

mapper

public interface DeviceMapper {
    List<Device> list();
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
	PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
	"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

	<mapper namespace="com.hd.dao.DeviceMapper">
	    <select id="list" resultType="Device">
	        select * from   tb_device
	    </select>
	</mapper>

项目结构