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SpringBoot整合flyway SpringBoot整合flyway实现步骤解析

JaxYoun 人气:0
想了解SpringBoot整合flyway实现步骤解析的相关内容吗,JaxYoun在本文为您仔细讲解SpringBoot整合flyway的相关知识和一些Code实例,欢迎阅读和指正,我们先划重点:SpringBoot,整合,flyway,下面大家一起来学习吧。

引入依赖

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 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>2.2.6.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
  </parent>

  <groupId>com.yang</groupId>
  <artifactId>fly-way-demo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>fly-way-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.flywaydb</groupId>
      <artifactId>flyway-core</artifactId>
    </dependency>

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

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

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
      <exclusions>
        <exclusion>
          <groupId>org.junit.vintage</groupId>
          <artifactId>junit-vintage-engine</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

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

</project>

第一版sql脚本

src/main/resources/db/migration/V1__sys_dept.sql

SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for sys_dept
-- ----------------------------
DROP TABLE IF EXISTS `sys_dept`;
CREATE TABLE `sys_dept` (
 `dept_id` int(20) NOT NULL AUTO_INCREMENT,
 `name` varchar(50) DEFAULT NULL COMMENT '部门名称',
 `sort` int(11) DEFAULT '0' COMMENT '排序',
 `create_time` datetime DEFAULT NULL COMMENT '创建时间',
 `update_time` datetime DEFAULT NULL COMMENT '修改时间',
 `del_flag` char(1) DEFAULT '0' COMMENT '是否删除 -1:已删除 0:正常',
 `parent_id` int(11) DEFAULT NULL,
 PRIMARY KEY (`dept_id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC COMMENT='部门管理';

第二版sql脚本

src/main/resources/db/migration/V1.1__sys_dept.sql

INSERT INTO `sys_dept` VALUES (1, '总经办', 0, '2020-03-13 13:13:16', '2020-03-13 13:14:31', '0', 0);
INSERT INTO `sys_dept` VALUES (2, '行政中心', 1, '2020-03-13 13:13:30', NULL, '0', 1);
INSERT INTO `sys_dept` VALUES (3, '技术中心', 2, '2020-03-13 13:14:55', NULL, '0', 1);
INSERT INTO `sys_dept` VALUES (4, '运营中心', 3, '2020-03-13 13:15:15', NULL, '0', 1);
INSERT INTO `sys_dept` VALUES (5, '研发中心', 5, '2020-03-13 13:15:34', NULL, '0', 3);
INSERT INTO `sys_dept` VALUES (6, '产品中心', 6, '2020-03-13 13:15:49', NULL, '0', 3);
INSERT INTO `sys_dept` VALUES (7, '测试中心', 7, '2020-03-13 13:16:02', NULL, '0', 3);

项目配置文件,主要是dataSource,flyway的采用约定值

src/main/resources/application.properties

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/fly_way?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=GMT%2B8&allowPublicKeyRetrieval=true
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

一些flyway配置项

flyway.baseline-description对执行迁移时基准版本的描述.
flyway.baseline-on-migrate当迁移时发现目标schema非空,而且带有没有元数据的表时,是否自动执行基准迁移,默认false.
flyway.baseline-version开始执行基准迁移时对现有的schema的版本打标签,默认值为1.
flyway.check-location检查迁移脚本的位置是否存在,默认false.
flyway.clean-on-validation-error当发现校验错误时是否自动调用clean,默认false.
flyway.enabled是否开启flywary,默认true.
flyway.encoding设置迁移时的编码,默认UTF-8.
flyway.ignore-failed-future-migration当读取元数据表时是否忽略错误的迁移,默认false.
flyway.init-sqls当初始化好连接时要执行的SQL.
flyway.locations迁移脚本的位置,默认db/migration.
flyway.out-of-order是否允许无序的迁移,默认false.
flyway.password目标数据库的密码.
flyway.placeholder-prefix设置每个placeholder的前缀,默认${.
flyway.placeholder-replacementplaceholders是否要被替换,默认true.
flyway.placeholder-suffix设置每个placeholder的后缀,默认}.
flyway.placeholders.[placeholder name]设置placeholder的value
flyway.schemas设定需要flywary迁移的schema,大小写敏感,默认为连接默认的schema.
flyway.sql-migration-prefix迁移文件的前缀,默认为V.
flyway.sql-migration-separator迁移脚本的文件名分隔符,默认__
flyway.sql-migration-suffix迁移脚本的后缀,默认为.sql
flyway.tableflyway使用的元数据表名,默认为schema_version
flyway.target迁移时使用的目标版本,默认为latest version
flyway.url迁移时使用的JDBC URL,如果没有指定的话,将使用配置的主数据源
flyway.user迁移数据库的用户名
flyway.validate-on-migrate迁移时是否校验,默认为true.

启动项目可以看到业务表的变化及flyway_schema_history版本记录表的变化。

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