SpringBoot 配置多个JdbcTemplate的实现步骤

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

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

<!-- mysql驱动 -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
</dependency>

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

<!--单元测试-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

spring.datasource.one.url=jdbc:mysql://localhost:3306/oy1?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
spring.datasource.one.jdbcUrl=jdbc:mysql://localhost:3306/oy1?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
spring.datasource.one.username=***
spring.datasource.one.password=***
spring.datasource.one.driver-class-name=com.mysql.cj.jdbc.Driver

spring.datasource.two.url=jdbc:mysql://localhost:3306/oy2?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
spring.datasource.two.jdbcUrl=jdbc:mysql://localhost:3306/oy2?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
spring.datasource.two.username=***
spring.datasource.two.password=***
spring.datasource.two.driver-class-name=com.mysql.cj.jdbc.Driver

package com.bestoyc.jdbctemplatedemo;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;

import javax.sql.DataSource;

/**
 * @author oyc
 * @Title: DataSourceConfig
 * @ProjectName jdbctemplatedemo
 * @Description: TODO
 * @date 2019/9/22 0:47
 */
@Configuration
public class DataSourceConfig {

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource.one")
    @Qualifier("oneDataSource")
    DataSource dsOne() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource.two")
    @Qualifier("twoDataSource")
    DataSource dsTwo() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "oneJdbcTemplate")
    public JdbcTemplate primaryJdbcTemplate(
            @Qualifier("oneDataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }

    @Bean(name = "twoJdbcTemplate")
    public JdbcTemplate secondaryJdbcTemplate(
            @Qualifier("twoDataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }
}

@Autowired
@Qualifier("oneJdbcTemplate")
private JdbcTemplate oneJdbcTemplate;

@Autowired
@Qualifier("twoJdbcTemplate")
private JdbcTemplate twoJdbcTemplate;

@RequestMapping("/createUser1")
public String createUser1() {
    oneJdbcTemplate.update("INSERT INTO `user`(`id`, `name`, `age`) VALUES (?,?,?);", null,"ouyang", 12);
    return "success";
}

@RequestMapping("/createUser2")
public String createUser2() {
    twoJdbcTemplate.update("INSERT INTO `user`(`id`, `name`, `age`) VALUES (?,?,?);", null,"ouyang", 12);
    return "success";
}