springboot版本從1.5.3升級2.2.x踩坑實錄1--org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration.backendIdConverterRegistry(RepositoryRestMvcConfiguration.java:721)

1. 報錯背景介紹

      筆者由於黑鴨子掃描結果需要，對本組的項目進行springboot版本進行升級，由於之前項目所用版本較低，為1.5.3，需要升級到2.2.x，結果出現如下錯誤：

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration.backendIdConverterRegistry(RepositoryRestMvcConfiguration.java:721)

The following method did not exist:

    org.springframework.plugin.core.PluginRegistry.of(Ljava/util/List;)Lorg/springframework/plugin/core/PluginRegistry;

The method's class, org.springframework.plugin.core.PluginRegistry, is available from the following locations:

    jar:file:/C:/Users/1/.m2/repository/org/springframework/plugin/spring-plugin-core/1.2.0.RELEASE/spring-plugin-core-1.2.0.RELEASE.jar!/org/springframework/plugin/core/PluginRegistry.class

It was loaded from the following location:

    file:/C:/Users/1/.m2/repository/org/springframework/plugin/spring-plugin-core/1.2.0.RELEASE/spring-plugin-core-1.2.0.RELEASE.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of org.springframework.plugin.core.PluginRegistry

2. 解決方案：

      從報錯信息

 org.springframework.plugin.core.PluginRegistry.of(Ljava/util/List;)Lorg/springframework/plugin/core/PluginRegistry;

可知 ，spring-plugin-core是1.2.0版本，但是在這個版本里面是沒有上述方法。通過查看maven倉庫-https://mvnrepository.com/，發現這個jar包就幾個版本，不是在低版本就是在高版本中。查驗之后發現這個方法是在2.0.0版本中存在的。所以目標明確，去掉1.2.0，引入2.0.0版本，maven依賴如下：

   1）修改原pom文件，去掉swagger中引入的1.2.0版本

<dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.plugin</groupId>
                    <artifactId>spring-plugin-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework.plugin</groupId>
                    <artifactId>spring-plugin-metadata</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>

 2）新引入spring-plugin-core的2.0.0版本

<!-- https://mvnrepository.com/artifact/org.springframework.plugin/spring-plugin-core -->
        <dependency>
            <groupId>org.springframework.plugin</groupId>
            <artifactId>spring-plugin-core</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.plugin/spring-plugin-metadata -->
        <dependency>
            <groupId>org.springframework.plugin</groupId>
            <artifactId>spring-plugin-metadata</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>

但是注意一點，這個jar需要提前引入，所以最好要放在父POM文件里面，這樣才能起效，否則可能會沒效果。