org.springframework.beans.factory.BeanCreationException：创建名为“flywayInitializer”的bean时出错答案

【问题标题】：org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer'org.springframework.beans.factory.BeanCreationException：创建名为“flywayInitializer”的bean时出错
【发布时间】：2020-06-28 17:40:57
【问题描述】：

学习中flyway有问题，按照视频教程开始项目，但是开始后发现flyway和spring的版本已经过时了，在pom.xml中放了另一个版本的Drope当我尝试上传项目时，创建的类别表和版本 e 方案 flyway 向我显示此错误。

>     org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path
> resource
> [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]:
> Invocation of init method failed; nested exception is
> org.flywaydb.core.api.FlywayException: Validate failed: 
> 
> Migration checksum mismatch for migration version 01
> -> Applied to database : 1894708545
> -> Resolved locally    : -2070596035

Pom.xml 之前：

<?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>1.5.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.algaworks.algamoney-api</groupId>
    <artifactId>algamoney-api</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <name>algamoney-api</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-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
            <version>3.2.1</version>
            <scope>runtime</scope>
        </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>
        </plugins>
    </build>

</project>

Pom.xml 之后：

<?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>2.3.1.RELEASE</version>
<!--        <packaging>jar</packaging> -->
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.algaworks.algamoney-api</groupId>
    <artifactId>algamoney-api</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <name>algamoney-api</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-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
            <version>6.4.4</version>
            <scope>runtime</scope>
        </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>
        </plugins>
    </build>

</proje

ct>

我的脚本：

CREATE table categoria(
    id BIGINT(20) PRIMARY KEY AUTO_INCREMENT,
    nome VARCHAR(50) NOT NULL
    
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO categoria (nome) values ('Lazer');
INSERT INTO categoria (nome) values ('Alimentação');
INSERT INTO categoria (nome) values ('Supermercado');
INSERT INTO categoria (nome) values ('Farmácia');
INSERT INTO categoria (nome) values ('Outros');

数据库中还没有创建表，schema_version 中也没有记录，因为我也删除了它。为什么会出错？谁能告诉我？

【问题讨论】：

标签： java spring-boot flyway

【解决方案1】：

如果您查看 Flyway 的发布文档，它会说，从 Flyway 4 到 5/6，schema_version 表已更改为 flyway_schema_history。

计算校验和的算法也发生了变化：

第 3 版 -

crc32 字节数：

bytes = resource.loadAsBytes()
...
crc32.update(bytes);

第 5 版（不是逐字副本）- crc32 over lines（忽略 CR/LF，使用 UTF-8 编码）：

 BufferedReader bufferedReader = new BufferedReader(new StringReader(resource.loadAsString(configuration.getEncoding())));
[...]
while ((line = bufferedReader.readLine()) != null) {
     crc32.update(line.getBytes("UTF-8"));
 }

flyway 在 v6 中用于校验和计算的类名是 org.flywaydb.core.internal.resolver.ChecksumCalculator

可以使用以下属性来处理第一个更改（关于表）：

  flyway.table=schema_version

第二个更改（校验和算法）可以通过在调用 migrate 之前使用 flyway repair 来解决（通过命令行或通过代码）

Flyway flyway = fluentConfig.schemas(schemaName).load();
flyway.repair();
flyway.migrate();

【讨论】：

但问题是 spring 和 flyway 版本不兼容。 tks
@Mussum 为什么不兼容？我在我的项目中使用相同的版本。有哪些兼容版本可以解决您的问题？
@Abhinada 检查我的答案。

【解决方案2】：

我的 pom：

这是我的 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>2.3.1.RELEASE</version>
        <!-- <packaging>jar</packaging> -->
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.algaworks.algamoney-api</groupId>
    <artifactId>algamoney-api</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <name>algamoney-api</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-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>2.0.1.Final</version>
        </dependency>
        <dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
            <version>6.4.4</version>
            <scope>runtime</scope>
        </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>
        </plugins>
    </build>

</project>

【讨论】：