IntelliJ IDEA，maven项目不自动导入依赖

Question

我导入了一个maven项目，但是idea没有自动导入依赖。

但我已经选中了“自动导入 Maven 项目”复选框。

我尝试删除 .idea 和 .iml 并重新导入项目。

关于想法：

IntelliJ IDEA 2018.1.1 (Ultimate Edition)
Build #IU-181.4445.78, built on April 10, 2018
Licensed to **
Subscription is active until October 14, 2018
JRE: 1.8.0_152-release-1136-b27 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
macOS 10.13.4

idea中我的项目结构：

更新问题！

发现我的pom.xml有问题，换成其他pom.xml可以自动导入依赖。但我不知道问题出在哪里。

<?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.dai</groupId>
    <artifactId>micro</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <properties>
        <spring-boot.version>2.0.2.RELEASE</spring-boot.version>
        <commons-lang3.version>3.1</commons-lang3.version>
        <postgresql.version>9.4.1212</postgresql.version>
        <commons-codec.version>1.10</commons-codec.version>
        <httpclient.version>4.5.2</httpclient.version>
        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
        <java-jwt.version>3.2.0</java-jwt.version>
        <wsdl4j.version>1.6.3</wsdl4j.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.fasterxml.jackson.datatype</groupId>
                <artifactId>jackson-datatype-jsr310</artifactId>
                <version>2.9.0</version>
            </dependency>
            <dependency>
                <groupId>com.auth0</groupId>
                <artifactId>java-jwt</artifactId>
                <version>${java-jwt.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>org.postgresql</groupId>
                <artifactId>postgresql</artifactId>
                <version>${postgresql.version}</version>
                <classifier/>
            </dependency>
            <dependency>
                <groupId>commons-codec</groupId>
                <artifactId>commons-codec</artifactId>
                <version>${commons-codec.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web-services</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <version>${spring-boot.version}</version>
                <scope>test</scope>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-redis</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-aop</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-amqp</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>wsdl4j</groupId>
                <artifactId>wsdl4j</artifactId>
                <version>${wsdl4j.version}</version>
            </dependency>

        </dependencies>

    </dependencyManagement>
    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>${maven-compiler-plugin.version}</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>${spring-boot.version}</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>jaxb2-maven-plugin</artifactId>
                    <version>1.6</version>
                    <executions>
                        <execution>
                            <id>xjc</id>
                            <goals>
                                <goal>xjc</goal>
                            </goals>
                        </execution>
                    </executions>
                    <configuration>
                        <schemaDirectory>${project.basedir}/src/main/resources/</schemaDirectory>
                        <outputDirectory>${project.basedir}/src/main/java</outputDirectory>
                        <clearOutputDir>false</clearOutputDir>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build> </project>

Answer 1

首先，确保使用最新的 Intellij Idea 版本。当前最新版本为 2018.1.4。您可以使用Jetbrains Toolbox 自动更新。

其次，您的pom.xml 应该在~/dev/micro-service 之下而不是~/dev/micro-service/src - 阅读Introduction to the Standard Directory Layout 以了解maven 项目应该是什么样子。

Answer 2

您的packaging 定义是pom，而您只有dependencyManagement 而不是dependency 部分。这些定义用于父 pom。您可以查看maven 了解有关它们的信息。

解决：

将packaging 更改为jar 并删除dependencyManagement 同时保留dependency 应该可以让您导入依赖项。