无法解析commons-collections:commons-collections:2.1

Question

当我尝试修复我的代码时，我有一个问题。当我重新加载maven/reimport maven无法解析commons-collections:commons-collections:2.1时，我一直收到问题

当我打开Maven时，我在Dependencies中的文件夹中看到一个错误在commons-validator:commons-validator:1.3.1中启动

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>2.3.0.RELEASE</version>
        <relativePath />
        <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demoSpring</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demoSpring</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-validation -->
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <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>
        <!-- https://mvnrepository.com/artifact/org.assertj/assertj-core -->
        <dependency>
            <groupId>org.assertj</groupId>
            <artifactId>assertj-core</artifactId>
            <version>3.16.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
            <version>3.4.5</version>
        </dependency>
        <dependency>
            <groupId>com.example</groupId>
            <artifactId>demoSpring</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>commons-validator</groupId>
            <artifactId>commons-validator</artifactId>
            <version>1.3.1</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

看一看，看看我如何解决这个问题。

Cannot resolve commons-collections:commons-collections:2.1

Cannot resolve org.apache.commons:commons-collections4:4.4

Cannot resolve commons-digester:commons-digester:1.6

Cannot resolve xml-apis:xml-apis:1.0.b2

Cannot resolve commons-logging:commons-logging:1.0.4

Answer 1

错误是“无法解析commons-collections:commons-collections:2.1”

它与"commons-validator“依赖无关。

commons集合工件已移动到maven artifactory中的另一个位置。

请查看此https://mvnrepository.com/artifact/org.apache.commons/commons-collections4

Answer 2

尝试更改包的版本，但最好在https://mvnrepository.com/中找到所需的依赖项，复制此文本并尝试重新导入。