Question

我正在尝试集成Maven - Spring MVC - Rest，但我面临的问题是maven没有选择＆＃34; spring-web / aop / beans / context / core＆＃34;（版本4.3.12）依赖。

而不是spring-web / aop / beans / context / core 4.3.12.RELEASE，maven正在挑选＆＃34; spring-web / aop / beans / context / core＆＃34; 2.5.6.SEC03依赖。因为这个＆＃34; org.springframework.web.bind.annotation.RequestMapping;＆＃34;没有得到解决，因为它不存在于春季网站2.5.6.SEC03

Maven版本 - ＆gt; Apache的行家-3.5.2

Maven env变量

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.portal</groupId>
    <artifactId>HumanResourcePortal</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
            </resource>
        </resources>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <warName>${project.artifactId}-${project.version}</warName>
                    <outputDirectory>${project.basedir}/target</outputDirectory>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-clean-plugin</artifactId>
                <version>2.6.1</version>
                <configuration>
                    <filesets>
                        <fileset>
                            <directory>
                                /home/shivam/apache-tomcat-7.0.81/webapps/${project.artifactId}-${project.version}
                            </directory>
                        </fileset>
                        <fileset>
                            <directory>
                                /home/shivam/apache-tomcat-7.0.81/webapps
                            </directory>
                            <includes>
                                <include>
                                    ${project.artifactId}-${project.version}.{packaging}
                                </include>
                            </includes>
                       </fileset>
                    </filesets>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.0.2</version>
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>/home/shivam/apache-tomcat-7.0.81/webapps</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>${project.basedir}/target</directory>
                                    <includes>
                                        <include>${project.artifactId}-${project.version}.${packaging}</include>
                                        <include>${project.artifactId}-${project.version}</include>
                                    </includes>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.thoughtworks.xstream</groupId>
            <artifactId>xstream</artifactId>
            <version>1.4.9</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-bundle</artifactId>
            <version>1.8</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-core</artifactId>
            <version>1.8</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-server</artifactId>
            <version>1.8</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-client</artifactId>
            <version>1.8</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey.contribs</groupId>
            <artifactId>jersey-spring</artifactId>
            <version>1.8</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>4.3.11.Final</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.12</version>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.1.0.7.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>
    </dependencies>
</project>

运行maven依赖关系树后

运行＆＃34; mvn help：effectivePom＆＃34;

Answer 1

选择更接近项目根目录的依赖项版本Maven依赖项查找的已知行为。让我们假设您有以下依赖树：

Your Project
- library-A-1.0.jar
-- library-B-1.5.jar (dependency of library-A)
- library-B-1.2.jar

maven将为您挑选的库设置为library-A-1.0.jar和library-B-1.2.jar（因为此版本距离项目根距离为1，与library-B-1.5.jar相比更接近2）。< / p>

解决此类问题的常用方法是

使用Maven Dependency Plug-in
将所需的库版本定义为更靠近项目根目录
或在包含的工件中排除不需要的依赖
或者在相同距离（第一个将使用）

Answer 2

最有可能的是，过时的Spring版本来自jersey-spring瞬态依赖项。尝试使用最新版本之一。

更好的选择？

首先，您可以使用<dependencyManagement>部分。它用于锁定整个项目中的依赖项版本。 <dependencyManagement>将适用于任何工件。

其次，从3.x版本Spring provides a Bill of Materials开始。 BOM是Maven中的一个特殊概念，如<dependencyManagement>，但它允许通过一次BOM导入锁定多个依赖项。为一些流行的库（如Spring或Camel）准备并发布了BOM。

Maven正在挑选旧版本的依赖

2 个答案: