我一直在尝试设置Spring Boot项目，但出现错误。我研究并尝试了各种选择，但到目前为止还没有运气。任何帮助，将不胜感激。

项目构建错误：不可解析的父POM：无法找到http://repo.maven.apache.org/中的
org.springframework.boot：spring-boot-starter-parent：pom：1.1.3.RELEASE
缓存在本地存储库中，直到中心的更新间隔过去或强制进行更新并且没有本地POM的’parent.relativePath’点都将无法尝试解析

POM.XML（父标记中的错误）

<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>com.programmingfree</groupId>

  <artifactId>spring-data-rest-angular</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <name>Spring Data Rest + AngularJS</name>

  <description>This project uses Spring Data Rest and AngularJS to perform CRUD operations against MySql Database.</description>

  <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>1.1.3.RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>

  <dependencies>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-thymeleaf</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-data-jpa</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-data-rest</artifactId>

        </dependency>

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

        </dependency>

    </dependencies>



    <properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <start-class>com.programmingfree.springservice.Application</start-class>

        <java.version>1.7</java.version>

    </properties>



    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>