mybatis无mapper.xml用法

在datasource配置类上加上

@MapperScan("cn.x.x.dao")
@Configuration

<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>
    <groupId>cn.x</groupId>
    <artifactId>xxxtest</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

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

        <dependency>
            <groupId>io.cucumber</groupId>
            <artifactId>cucumber-java8</artifactId>
            <version>4.2.0</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>io.cucumber</groupId>
            <artifactId>cucumber-spring</artifactId>
            <version>4.2.0</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>io.cucumber</groupId>
            <artifactId>cucumber-junit</artifactId>
            <version>4.2.0</version>
            <scope>test</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-jdbc</artifactId>
        </dependency>

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

        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>okhttp</artifactId>
            <version>3.11.0</version>
        </dependency>

        <dependency>
            <groupId>com.squareup.okio</groupId>
            <artifactId>okio</artifactId>
            <version>1.14.0</version>
        </dependency>

        <dependency>
            <groupId>com.google.code.findbugs</groupId>
            <artifactId>jsr305</artifactId>
            <version>3.0.2</version>
        </dependency>

        <dependency>
            <groupId>org.conscrypt</groupId>
            <artifactId>conscrypt-openjdk-uber</artifactId>
            <version>1.1.4</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.49</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.12</version>
        </dependency>

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

    </dependencies>

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

</project>

pom

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    url: jdbc:mysql://1.1.1.1:3306/databasename?useSSL=false
    username: root
    password: root
    filters: stat
    maxActive: 20
    initialSize: 5
    maxWait: 60000
    minIdle: 1
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    testWhileIdle: true
    validationQuery: select 1
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    maxOpenPreparedStatements: 20

appliaction.yml

package cn.x.x.config;

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;

@MapperScan("cn.x.x.dao")
@Configuration
public class DataSourceConfig {

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource dataSource(){
        return new DruidDataSource();
    }

    @Bean
    public SqlSessionFactory sqlSessionFactory(){
        SqlSessionFactory sqlSessionFactory = null;
        try{
            SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
            sqlSessionFactoryBean.setDataSource(dataSource());
            sqlSessionFactory = sqlSessionFactoryBean.getObject();
        }catch (Exception e){
            e.printStackTrace();
        }
        return sqlSessionFactory;
    }

    @Bean
    public ServletRegistrationBean druidServlet(){
        ServletRegistrationBean reg = new ServletRegistrationBean();
        reg.setServlet(new StatViewServlet());
        reg.addUrlMappings("/druid/*");
        reg.addInitParameter("loginUsername","admin");
        reg.addInitParameter("loginPassword","admin123");
        reg.addInitParameter("logSlowSql","true");
        return reg;
    }

    @Bean
    public FilterRegistrationBean filterRegistrationBean(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        filterRegistrationBean.addUrlPatterns("/*");
        filterRegistrationBean.addInitParameter("profileEnable","true");
        return filterRegistrationBean;
    }
}

DataSourceConfig.java

package cn.x.x.dao;

import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

public interface RegUtil {

    @Update("update `databasename`.`t_user` set`user_name` = '${user_name}',`idcard` = '${idcard_no}',`gender` = '男',`race` = '汉',`birthdate` = '1990-09-27 00:00:00',`address` = `宛平路47号',`valid_date` = '2017.12.11-2037.12.11',`id_expired_time` = '2037-12-11 00:00:00'WHERE`id` = '${reg_user_id}'")
    public boolean updateUser(@Param("user_name")String user_name,@Param("idcard_no")String idcard_no,@Param("reg_user_id")String reg_user_id);

    @Insert("insert into databasename.t_user_bankcard(user_id,issue_bank,issue_bank_abbr,card_type,account_no,phone_no,idcard) values('${reg_user_id}','民生银行','CMBC','2','${bankcard_no}','${mobile}','${idcard_no}')" )
    public boolean insertBankCard(@Param("reg_user_id")String reg_user_id,@Param("bankcard_no")String bankcard_no,@Param("mobile")String mobile,@Param("idcard_no")String idcard_no);

    @Select("select count(1) from databasename.t_user where idcard = ${idcard} ")
    int getIdcardCount(@Param("idcard")String idcard);

}

dao