配置文件

• pom.xml

springboot

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.3.2</version>
</dependency>

spring-mybatis

<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.2</version>
</dependency>

mysql

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.12</version>
</dependency>

• application.yaml

mybatis:
  type-aliases-package: org.wyv.monitor.mapper #mapper接口文件位置
  configuration:
    map-underscore-to-camel-case: true #驼峰声明方式
    default-statement-timeout: 30 #SQL运行超时时间
  mapper-locations: classpath:mappers/*.xml #SQL代码文件存放位置

代码

• java接口文件

@Mapper
@Component("XXXDao") //不用这个会出现报错的情况
public interface XXXMapper{

    List<SoaServView> querySOAMessageLogOfHourToday(HashMap map);

}

• Mapper文件

<?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="org.wyv.monitor.mapper.XXXMapper">
    <select id="querySOAMessageLogOfHourToday"
            resultType="org.wyv.monitor.model.vo.SoaServView">
       SELECT service_id,
       service_name,
       count(service_id) as cnt,
       sum(if(stat = 'true',1,0)) as cnt_true,
       sum(if(stat = 'false',1,0)) as cnt_false,
       sum(if(stat = 'true',respond_time,0))/sum(if(stat = 'true',1,0)) as avg_time,
       left(reg_time,10) as serv_time
        FROM m_service_message
        where
        reg_time &gt;= concat(date_format(current_date(),'%Y%m%d'),'0000000')
        and reg_time &lt;= concat(date_format(current_date(),'%Y%m%d'),'5959999')
        <if test="sid != null">
            and service_id = #{sid}
        </if>
        <if test="sname != null">
            and service_name like #{sname}
        </if>
        group by service_id,left(reg_time,10),service_name
        order by service_id,left(reg_time,10)
    </select>
</mapper>

添加springboot配置

application.yml

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/db_cqt?useUnicode=true&characterEncoding=utf8&useSSL=false&allowPublicKeyRetrieval=true
    username: root
    password: 12345678
    driver-class-name: com.mysql.cj.jdbc.Driver
  aop:
    proxy-target-class: true
mybatis:
  type-aliases-package: org.yiva.cqtserver.mapper
  configuration:
    map-underscore-to-camel-case: true
  mapper-locations: classpath:mappers/*.xml
server:
  port: 9001

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 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>2.1.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>org.yiva</groupId>
    <artifactId>cqtserver</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <!--<packaging>war</packaging>-->
    <packaging>jar</packaging>
    <name>demo</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-tomcat</artifactId>-->
            <!--<scope>provided</scope>-->
        <!--</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-aop</artifactId>
        </dependency>

        <!--mybatis插件-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!-- MySQL 连接驱动依赖 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.12</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.49</version>
        </dependency>
    </dependencies>

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

</project>

目录结构

目录结构