Spring Boot 2 Lombok：jar：2.6.7丢失，没有可用的依赖项信息

时间：2019-04-27 17:10:15

标签： java maven intellij-idea lombok intellij-lombok-plugin

这是我的private void registerCameraState() { cm = (CameraManager)getSystemService(Context.CAMERA_SERVICE); handler = new Handler(); cm.registerAvailabilityCallback(new CameraManager.AvailabilityCallback() { @Override public void onCameraAvailable(String cameraId) { super.onCameraAvailable(cameraId); isCameraOpened = false; } @Override public void onCameraUnavailable(String cameraId) { super.onCameraUnavailable(cameraId); isCameraOpened = true; } },handler); } ，它是从start.spring.io为M2春季启动版本生成的。这就是为什么要添加Maven Spring存储库的原因。但是找不到依赖项。

pom.xml

当我从最新的Intellij 2019.1.1运行 <?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.2.0.M2</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>auth-service</artifactId> <version>0.0.1-SNAPSHOT</version> <name>auth-service</name> <description>Authorization service</description> <properties> <java.version>11</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> <dependency> <groupId>com.okta.spring</groupId> <artifactId>okta-spring-boot-starter</artifactId> <version>1.1.0</version> </dependency> <dependency> <groupId>org.springframework.security.oauth</groupId> <artifactId>spring-security-oauth2</artifactId> <version>2.3.5.RELEASE</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>2.6.7</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <repositories> <repository> <id>spring-snapshots</id> <name>Spring Snapshots</name> <url>https://repo.spring.io/snapshot</url> <snapshots> <enabled>true</enabled> </snapshots> </repository> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>spring-snapshots</id> <name>Spring Snapshots</name> <url>https://repo.spring.io/snapshot</url> <snapshots> <enabled>true</enabled> </snapshots> </pluginRepository> <pluginRepository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </pluginRepository> </pluginRepositories> </project> 时，出现以下错误：

mvn clean:install

为什么Maven无法正确获得Lombok版本？ Intellij似乎看到了版本 [INFO] ------------------------------------------------------------------------ [WARNING] The POM for org.projectlombok:lombok:jar:2.6.7 is missing, no dependency information available [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.336 s [INFO] Finished at: 2019-04-27T19:04:10+02:00 [INFO] Final Memory: 18M/70M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal on project auth-service: Could not resolve dependencies for project com.example:auth-service:jar:0.0.1-SNAPSHOT: Failure to find org.projectlombok:lombok:jar:2.6.7 in http://repo1.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException ，因为在2.6.7下它可用，但是maven看不到吗？

1 个答案:

答案 0 :(得分：0)

我从start.spring.io下载了一个具有类似依赖关系的类似spring项目-2.2.0.M2。 下面是我的pom.xml文件

<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.0.M2</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</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-oauth2-client</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>com.okta.spring</groupId>
        <artifactId>okta-spring-boot-starter</artifactId>
        <version>1.1.0</version>
    </dependency>

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

<repositories>
    <repository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </pluginRepository>
    <pluginRepository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
    </pluginRepository>
</pluginRepositories>

有一个mvn clean compile，可以看到依赖项已下载到我的.m2文件夹中，并且构建成功。

下面是龙目岛注释示例

package com.example.demo;

import lombok.Value;

@Value
public class User {
    String firstName;
    String lastName;
}

下面是我的主要课程：

@SpringBootApplication
public class DemoApplication implements CommandLineRunner {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }


    @Override
    public void run(String... args) {
        User user = new User("Hello", "World");
        System.out.println("First Name: " + user.getFirstName());
        System.out.println("Last Name: " + user.getLastName());
        System.out.println(user.toString());
    }

}

下面是输出：

2019-04-28 10:33:58.649  INFO 8732 --- [           main] com.example.demo.DemoApplication         : No active profile set, falling back to default profiles: default
2019-04-28 10:34:01.069  INFO 8732 --- [           main] com.example.demo.DemoApplication         : Started DemoApplication in 3.824 seconds (JVM running for 6.822)
First Name: Hello
Last Name: World
User(firstName=Hello, lastName=World)

Process finished with exit code
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