使用STS的Spring Boot Maven项目构建错误

Question

我在STS中创建一个新的Spring启动项目时收到以下错误消息

project build error: Non-resolvable parent POM for com.test:security:1.3.8-SNAPSHOT: Failure to transfer 
 org.springframework.boot:spring-boot-starter-parent:pom:1.3.8.RELEASE from https://repo.maven.apache.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. Original error: Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:1.3.8.RELEASE 
 from/to central (https://repo.maven.apache.org/maven2): connect timed out and 'parent.relativePath' points at no local POM

的pom.xml

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

            <groupId>com.test</groupId>
            <artifactId>security</artifactId>
            <version>1.3.8-SNAPSHOT</version>
            <packaging>jar</packaging>

            <name>security</name>
            <description>Demo project for Spring Boot</description>

            <parent>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>1.3.8.RELEASE</version>
                <relativePath/> <!-- lookup parent from repository -->
            </parent>

            <properties>
                <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
                <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
                <java.version>1.8</java.version>
            </properties>

            <dependencies>
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-security</artifactId>
                </dependency>

                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-test</artifactId>
                    <scope>test</scope>
                </dependency>
            </dependencies>

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


        </project>

的

对于每个Spring启动项目，我收到上述错误消息。

Answer 1

您应该将Spring引导父依赖项更新为最新的realease 1.5.3：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
</dependency>

Answer 2

您使用的是Maven 2还是Maven 3.x？

根据文档，Spring Boot与Apache Maven 3.2或更高版本（https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#getting-started-maven-installation）兼容