Spring启动Spring Starter Web项目初始化错误

Question

我在eclipse中使用Spring Boot starter Intializer，当我添加JPA时，它总是给我丢失的工件，我删除它的项目成功构建

当我自己添加它时，它会给我错误，当我删除它时，项目构建成功

当我添加sql时，当我成功删除项目构建时会给出错误

以及许多依赖性

我读过春季启动它使依赖版本兼容吗？ 但通过这种方式我尝试多个项目，并尝试添加多个依赖它总是给我错误

我有问题或弹簧启动效率不高吗？

pom.xml示例

<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns="http://maven.apache.org/POM/4.0.0"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
 http://maven.apache.org/maven-v4_0_0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>org.springframework.samples</groupId>
 <artifactId>spring-petclinic</artifactId>
 <version>1.5.1</version>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.4.RELEASE</version>
 </parent>
 <name>petclinic</name>

 <properties>

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

 <!-- Web dependencies -->
 <webjars-bootstrap.version>3.3.6</webjars-bootstrap.version>
 <webjars-jquery-ui.version>1.11.4</webjars-jquery-ui.version>
 <webjars-jquery.version>2.2.4</webjars-jquery.version>
<wro4j.version>1.8.0</wro4j.version>
<thymeleaf.version>3.0.6.RELEASE</thymeleaf.version>
<jdk.version>1.8</jdk.version>
<cobertura.version>2.7</cobertura.version>

 </properties>

<dependencies>
<!-- Spring and Spring Boot dependencies -->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-cache</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-web</artifactId>
</dependency>
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-thymeleaf</artifactId>
  <exclusions>
    <exclusion>
        <groupId>nz.net.ultraq.thymeleaf</groupId>
        <artifactId>thymeleaf-layout-dialect</artifactId>
    </exclusion>
  </exclusions>
</dependency>
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-test</artifactId>
  <scope>test</scope>
</dependency>

<!-- Databases - Uses HSQL by default -->
<dependency>
  <groupId>org.hsqldb</groupId>
  <artifactId>hsqldb</artifactId>
  <scope>runtime</scope>
</dependency>
<dependency>
  <groupId>mysql</groupId>
  <artifactId>mysql-connector-java</artifactId>
  <scope>runtime</scope>
</dependency>

<!-- caching -->
<dependency>
  <groupId>javax.cache</groupId>
  <artifactId>cache-api</artifactId>
</dependency>
<dependency>
  <groupId>org.ehcache</groupId>
  <artifactId>ehcache</artifactId>
</dependency>

<!-- webjars -->
<dependency>
  <groupId>org.webjars</groupId>
  <artifactId>webjars-locator</artifactId>
</dependency>
<dependency>
  <groupId>org.webjars</groupId>
  <artifactId>jquery</artifactId>
  <version>${webjars-jquery.version}</version>
</dependency>
<dependency>
  <groupId>org.webjars</groupId>
  <artifactId>jquery-ui</artifactId>
  <version>${webjars-jquery-ui.version}</version>
</dependency>
<dependency>
  <groupId>org.webjars</groupId>
  <artifactId>bootstrap</artifactId>
  <version>${webjars-bootstrap.version}</version>
</dependency>
<!-- end of webjars -->

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-devtools</artifactId>
  <scope>runtime</scope>
</dependency>


<dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>

</dependencies>

<build>
<sourceDirectory>src</sourceDirectory>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.5.1</version>
            <configuration>
                <source>${jdk.version}</source>
                <target>${jdk.version}</target>
            </configuration>
        </plugin>
        <plugin>
            <artifactId>maven-war-plugin</artifactId>
            <version>3.0.0</version>
            <configuration>
                <warSourceDirectory>WebContent</warSourceDirectory>
            </configuration>
        </plugin>

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