【SpringBoot】SpringBoot 与 MyBatis 多数据源配置（二十九）

　　本章介绍SpringBoot 与 MyBatis 多数据源配置，SpringBoot与Mybatis整合内容可以参考【SpringBoot】SpringBoot 与Mybatis整合（十三）

　　1、准备2个数据库，本例以mysql为例

　　　　在第一个数据库test_mysql中，新建表user

 1 -- ----------------------------
 2 -- Table structure for user
 3 -- ----------------------------
 4 DROP TABLE IF EXISTS `user`;
 5 CREATE TABLE `user` (
 6   `id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID',
 7   `name` varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '名称',
 8   PRIMARY KEY (`id`)
 9 ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
10 
11 -- ----------------------------
12 -- Records of user
13 -- ----------------------------
14 BEGIN;
15 INSERT INTO `user` VALUES (1, '张三');
16 INSERT INTO `user` VALUES (2, '李四');
17 INSERT INTO `user` VALUES (3, '王五');
18 COMMIT;

　　　　在第二个数据库test_mysql2中，新建表dog

 1 -- ----------------------------
 2 -- Table structure for dog
 3 -- ----------------------------
 4 DROP TABLE IF EXISTS `dog`;
 5 CREATE TABLE `dog` (
 6   `id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID',
 7   `dog_name` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '狗名',
 8   PRIMARY KEY (`id`)
 9 ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
10 
11 -- ----------------------------
12 -- Records of dog
13 -- ----------------------------
14 BEGIN;
15 INSERT INTO `dog` VALUES (1, '旺财');
16 INSERT INTO `dog` VALUES (2, '二哈');
17 INSERT INTO `dog` VALUES (3, '大黑');
18 COMMIT;

项目搭建

　　1、新建一个SpringBoot Web项目

　　　　完成pom文件如下：

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5     <modelVersion>4.0.0</modelVersion>
 6 
 7     <groupId>com.test</groupId>
 8     <artifactId>test-springboot-muldatasource</artifactId>
 9     <version>1.0-SNAPSHOT</version>
10 
11     <parent>
12         <groupId>org.springframework.boot</groupId>
13         <artifactId>spring-boot-starter-parent</artifactId>
14         <version>2.1.8.RELEASE</version>
15     </parent>
16 
17     <properties>
18 
19         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
20         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
21         <java.version>1.8</java.version>
22     </properties>
23 
24     <dependencies>
25 
26         <dependency>
27             <groupId>org.springframework.boot</groupId>
28             <artifactId>spring-boot-starter-web</artifactId>
29         </dependency>
30 
31         <dependency>
32             <groupId>org.mybatis.spring.boot</groupId>
33             <artifactId>mybatis-spring-boot-starter</artifactId>
34             <version>2.0.1</version>
35         </dependency>
36 
37         <!-- mysql -->
38         <dependency>
39             <groupId>mysql</groupId>
40             <artifactId>mysql-connector-java</artifactId>
41             <version>8.0.12</version>
42         </dependency>
43 
44         <dependency>
45             <groupId>org.springframework.boot</groupId>
46             <artifactId>spring-boot-starter-test</artifactId>
47             <scope>test</scope>
48         </dependency>
49 
50     </dependencies>
51 
52 
53     <!-- SpringBoot打包插件，可以将代码打包成一个可执行的jar包 -->
54     <build>
55         <plugins>
56             <plugin>
57                 <groupId>org.springframework.boot</groupId>
58                 <artifactId>spring-boot-maven-plugin</artifactId>
59             </plugin>
60         </plugins>
61     </build>
62 
63 </project>

pom.xml