我在構建 Spring Boot 應用程式時遇到問題。我們需要使用 maven 構建具有“lib/bin/conf”結構的專案。我用另一個專案做了，沒有問題。但是現在發生了沖突，建議采取行動。
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APPLICATION FAILED TO START
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Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.<init>(DefaultSingletonBeanRegistry.java:88)
The following method did not exist:
'java.util.Map org.springframework.core.CollectionFactory.createConcurrentMapIfPossible(int)'
The calling method's class, org.springframework.beans.factory.support.DefaultSingletonBeanRegistry, is available from the following locations:
jar:file:/Users/user/.m2/repository/org/springframework/spring/2.5.5/spring-2.5.5.jar!/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.class
jar:file:/Users/user/.m2/repository/org/springframework/spring-beans/5.3.18/spring-beans-5.3.18.jar!/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.class
The calling method's class was loaded from the following location:
file:/Users/user/.m2/repository/org/springframework/spring/2.5.5/spring-2.5.5.jar
The called method's class, org.springframework.core.CollectionFactory, is available from the following locations:
jar:file:/Users/user/.m2/repository/org/springframework/spring-core/5.3.18/spring-core-5.3.18.jar!/org/springframework/core/CollectionFactory.class
jar:file:/Users/user/.m2/repository/org/springframework/spring/2.5.5/spring-2.5.5.jar!/org/springframework/core/CollectionFactory.class
The called method's class hierarchy was loaded from the following locations:
org.springframework.core.CollectionFactory: file:/Users/user/.m2/repository/org/springframework/spring-core/5.3.18/spring-core-5.3.18.jar
Action:
Correct the classpath of your application so that it contains compatible versions of the classes org.springframework.beans.factory.support.DefaultSingletonBeanRegistry and org.springframework.core.CollectionFactory
我怎么解決這個問題？公司提供的部分庫已被洗掉。這是我的 pom 檔案。
<?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>2.6.6</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>...</groupId>
<artifactId>...</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>...</name>
<properties>
<java.version>11</java.version>
<finalName>${project.artifactId}-${project.version}</finalName>
<logback.version>1.2.9</logback.version>
<log4j.version>2.17.0</log4j.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-starter-batch</artifactId>
</dependency>
<dependency>
<groupId>net.javacrumbs.shedlock</groupId>
<artifactId>shedlock-spring</artifactId>
<version>4.34.0</version>
</dependency>
<dependency>
<groupId>net.javacrumbs.shedlock</groupId>
<artifactId>shedlock-provider-jdbc-template</artifactId>
<version>4.34.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!-- vault -->
<dependency>
<groupId>org.springframework.vault</groupId>
<artifactId>spring-vault-core</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
<!-- log4j -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>${log4j.version}</version>
</dependency>
<!-- logback -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logback.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency>
<!-- Swagger 2 -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.9.2</version>
</dependency>
<!-- Apache Commons -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.11</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.4</version>
</dependency>
<dependency>
<groupId>io.lettuce</groupId>
<artifactId>lettuce-core</artifactId>
<version>5.2.2.RELEASE</version>
</dependency>
<!--proxy-->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.13</version>
</dependency>
</dependencies>
<build>
<finalName>${finalName}</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
uj5u.com熱心網友回復：
Spring 2.5.5已經過時 12 年；你沒有理由擁有它。lib此外，在 Maven中擁有一個目錄絕對沒有任何意義。依賴管理是 Maven 的主要用途。
我在您的 POM 中看不到任何可以引入 Spring 2.5.5 的內容。與您的專案相關的其他內容是否可能出現拼寫錯誤并打算包含 Spring Boot 2.5.5？無論如何，確定這是從哪里來的 ( mvn dependency:tree) 并修復它。
uj5u.com熱心網友回復：
DefaultSingletonBeanRegistry 和 CollectionFactory 在 spring-2.5.5 中是重復的，實際上它們已經包含在 spring-beans 和 spring-core 中。
執行 'mvn dependency:tree -Dverbose' 查看 spring-2.5.5 是如何包含的，排除它并重試
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