spring boot学习第十二篇:mybatis框架中调用存储过程控制事务性-编程知识

1、MySQL方面，已经准备好了存储过程，参考：MYSQL存储过程（含入参、出参）-CSDN博客

2、pom.xml文件内容如下：

<?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>2.6.4</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.hmblogs</groupId><artifactId>hmblogs</artifactId><version>0.0.1-SNAPSHOT</version><name>hmblogs</name><description>hmblogs</description><properties><java.version>8</java.version><druid.version>1.2.8</druid.version><log4jdbc.version>1.16</log4jdbc.version><es.version>7.9.2</es.version></properties><dependencies><!-- druid数据源驱动 --><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>${druid.version}</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!-- mybatis --><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.5.3.1</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><!--Mysql依赖包--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency><!--lombok插件--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><!--监控sql日志--><dependency><groupId>org.bgee.log4jdbc-log4j2</groupId><artifactId>log4jdbc-log4j2-jdbc4.1</artifactId><version>${log4jdbc.version}</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.9</version></dependency><dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId></dependency><dependency><groupId>org.apache.kafka</groupId><artifactId>kafka-clients</artifactId></dependency><dependency><groupId>org.springframework.kafka</groupId><artifactId>spring-kafka</artifactId></dependency><!-- high client--><dependency><groupId>org.elasticsearch.client</groupId><artifactId>elasticsearch-rest-high-level-client</artifactId><version>${es.version}</version><exclusions><exclusion><groupId>org.elasticsearch</groupId><artifactId>elasticsearch</artifactId></exclusion><exclusion><groupId>org.elasticsearch.client</groupId><artifactId>elasticsearch-rest-client</artifactId></exclusion></exclusions></dependency><!-- rest-high-level-client 依赖如下2个jar --><dependency><groupId>org.elasticsearch</groupId><artifactId>elasticsearch</artifactId><version>${es.version}</version></dependency><dependency><groupId>org.elasticsearch.client</groupId><artifactId>elasticsearch-rest-client</artifactId><version>${es.version}</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-mongodb</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId></dependency><dependency><groupId>org.springframework.security.oauth.boot</groupId><artifactId>spring-security-oauth2-autoconfigure</artifactId><version>2.4.0</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

3、application.yml文件内容如下：

server:port: 8081servlet.context-path: /#配置数据源
spring:datasource:druid:db-type: com.alibaba.druid.pool.DruidDataSourcedriverClassName: net.sf.log4jdbc.sql.jdbcapi.DriverSpyurl: jdbc:log4jdbc:mysql://${DB_HOST:localhost}:${DB_PORT:3306}/${DB_NAME:eladmin}?serverTimezone=Asia/Shanghai&characterEncoding=utf8&useSSL=falseusername: ${DB_USER:root}password: ${DB_PWD:demo}redis:host: localhostport: 6379password: demodatabase: 10data:mongodb:host: 43.138.0.199port: 27017username: hmblogspassword: demodatabase: hmblogsauthentication-database: admines:host: 43.138.0.199port: 9200scheme: httpuser: elasticpassword: demo

4、BackendApplication文件内容如下：

package com.hmblogs.backend;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class BackendApplication {public static void main(String[] args) {SpringApplication.run(BackendApplication.class, args);}}

5、StockMapper.xml文件内容如下：

<?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.hmblogs.backend.dao.StockMapper"><resultMap id="BaseResultMap" type="com.hmblogs.backend.entity.Stock"><id column="id" property="id"/><result column="quantity" property="quantity"/></resultMap><sql id="BaseResultMap">id, quantity</sql><select id="findAll" resultMap="BaseResultMap">select<include refid="BaseResultMap"/>from t_stock</select><select id="findById" resultMap="BaseResultMap"  parameterType="com.hmblogs.backend.entity.Stock">select<include refid="BaseResultMap"/>from t_stockwhere id=#{id}</select><update id="updateStockById" parameterType="com.hmblogs.backend.entity.Stock">update t_stock set quantity=quantity-1 where id=#{id}</update><select id="invokeStockProdudure" statementType="CALLABLE" parameterType="java.util.Map" resultType="java.util.Map">CALL stock_produdure(#{id1,mode=IN,jdbcType=INTEGER},#{quantity1,mode=IN,jdbcType=INTEGER},#{id2,mode=IN,jdbcType=INTEGER},#{quantity2,mode=IN,jdbcType=INTEGER},#{result,mode=OUT,jdbcType=INTEGER});</select></mapper>

6、StockMapper文件内容如下：

package com.hmblogs.backend.dao;import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.hmblogs.backend.entity.Stock;
import org.apache.ibatis.annotations.Mapper;import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;@Mapper
public interface StockMapper extends BaseMapper<Stock> {List<Stock> findAll();Stock findById(Stock stock);Integer updateStockById(Stock stock);Map<String,Integer> invokeStockProdudure(Map<String,String> param);
}

7、Stock文件内容如下：

package com.hmblogs.backend.entity;import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;@Data
@TableName("t_stock")
public class Stock {@TableId(value="id", type = IdType.AUTO)private Integer id;private Integer quantity;}

8、StockServiceImpl代码如下：

package com.hmblogs.backend.service;import com.hmblogs.backend.dao.StockMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.HashMap;
import java.util.Map;@Slf4j
@Service
public class StockServiceImpl {@Autowiredprivate StockMapper stockMapper;public void operateProcedure(){HashMap<String,String> param = new HashMap<>();param.put("id1","7000");param.put("quantity1","15");param.put("id2","7001");param.put("quantity2","18");Map<String,Integer> result = stockMapper.invokeStockProdudure(param);log.info("result:"+result);}
}

9、测试类ProcedureTest内容如下：

package com.hmblogs.backend.util;import com.hmblogs.backend.service.StockServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;import java.util.HashMap;
import java.util.Map;@Slf4j
//@Component
@RunWith(SpringRunner.class)
@SpringBootTest
public class ProcedureTest {@Autowiredprivate StockServiceImpl stockServiceImpl;@Testpublic void testProcedure() {// 请求参数stockServiceImpl.operateProcedure();}
}

执行该方法，