我试图运行一个简单的 spring boot 应用程序，我已经用适当的参数填充了 application.properties 以创建基于 jpa 和 mysql 配置的数据源，并且我在 pom.xml 中指定了我的应用程序的一些依赖项可能需要才能运行，但是当我启动我的应用程序时仍然出现同样的错误，这是我的配置文件，我希望能在这里得到一些帮助! 我希望应用程序一开始就使用 orm 技术在我的数据库中创建表，但我遇到了这些错误!!

pom.xml文件

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

<groupId>objectExchange</groupId>
<artifactId>exchange</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>objectExchange</name>
<description>ObjectExchange Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.1.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-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </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>

application.properties 文件

spring.datasource.url = jdbc:mysql://localhost:3306/db_objexchange
spring.datasource.username = root
spring.datasource.password =
spring.datasource.driverClassName = com.mysql.jdbc.Driver
spring.jpa.database = MYSQL
spring.jpa.show-sql = true
spring.jpa.hibernate.ddl-auto = update
spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.ImprovedNamingStrategy  
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

申请文件:

package com;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class ObjectExchangeApplication {

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

jpa持久化类

package com.entities;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class utilisateur implements Serializable {
    @Id
    @GeneratedValue
    private Long id;
    private String nom;
    private String prenom;
    public utilisateur() {
        super();
    }
    public utilisateur(Long id, String nom, String prenom) {
        super();
        this.id = id;
        this.nom = nom;
        this.prenom = prenom;
    }
    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }
    public String getNom() {
        return nom;
    }
    public void setNom(String nom) {
        this.nom = nom;
    }
    public String getPrenom() {
        return prenom;
    }
    public void setPrenom(String prenom) {
        this.prenom = prenom;
    }

}

这是我在我的应用程序中的文件，但我不断收到这些错误:

:: Spring Boot ::        (v1.4.1.RELEASE)

2016-09-25 19:59:02.908  INFO 4952 --- [           main] com.ObjectExchangeApplication            : Starting ObjectExchangeApplication on user-PC with PID 4952 (C:\Users\user\workspace\objectExchange\target\classes started by user in C:\Users\user\workspace\objectExchange)
2016-09-25 19:59:02.918  INFO 4952 --- [           main] com.ObjectExchangeApplication            : No active profile set, falling back to default profiles: default
2016-09-25 19:59:03.277  INFO 4952 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@1eb5ee5: startup date [Sun Sep 25 19:59:03 WEST 2016]; root of context hierarchy
2016-09-25 19:59:05.193  WARN 4952 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/C:/Users/user/.m2/repository/mysql/mysql-connector-java/5.1.39/mysql-connector-java-5.1.39.jar!/com/mysql/fabric/FabricCommunicationException.class]; nested exception is java.util.zip.ZipException: invalid LOC header (bad signature)
2016-09-25 19:59:05.284 ERROR 4952 --- [           main] o.s.boot.SpringApplication               : Application startup failed


org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/C:/Users/user/.m2/repository/mysql/mysql-connector-java/5.1.39/mysql-connector-java-5.1.39.jar!/com/mysql/fabric/FabricCommunicationException.class]; nested exception is java.util.zip.ZipException: invalid LOC header (bad signature)
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:303) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:248) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:137) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:275) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:237) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:204) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:173) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:324) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:246) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:523) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at com.ObjectExchangeApplication.main(ObjectExchangeApplication.java:10) [classes/:na]
Caused by: java.util.zip.ZipException: invalid LOC header (bad signature)
at java.util.zip.ZipFile.read(Native Method) ~[na:1.8.0_92]
at java.util.zip.ZipFile.access$1400(Unknown Source) ~[na:1.8.0_92]
at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source) ~[na:1.8.0_92]
at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(Unknown Source) ~[na:1.8.0_92]
at java.util.zip.InflaterInputStream.read(Unknown Source) ~[na:1.8.0_92]
at java.io.FilterInputStream.read(Unknown Source) ~[na:1.8.0_92]
at java.io.BufferedInputStream.fill(Unknown Source) ~[na:1.8.0_92]
at java.io.BufferedInputStream.read1(Unknown Source) ~[na:1.8.0_92]
at java.io.BufferedInputStream.read(Unknown Source) ~[na:1.8.0_92]
at org.springframework.asm.ClassReader.readClass(ClassReader.java:463) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.asm.ClassReader.<init>(ClassReader.java:426) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:53) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102) ~[spring-core-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:279) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
... 19 common frames omitted

我真的希望我能尽快得到一些帮助，非常感谢大家!!

最佳答案

你的错误是这样的:

Failed to read candidate component class: URL [jar:file:/C:/Users/user/.m2/repository/mysql/mysql-connector-java/5.1.39/mysql-connector-java-5.1.39.jar!/com/mysql/fabric/FabricCommunicationException.class]; nested exception is java.util.zip.ZipException: invalid LOC header (bad signature)

这表明 mysql-connector-java-5.1.39.jar 已损坏。

解决方案

删除 C:/Users/user/.m2/repository(或至少 C:/Users/user/.m2/repository/mysql/mysql-connector-java/).

这将强制 Maven 在重建时重新下载 mysql-connector-java 的 jar(即:mvn clean install)。

关于java - 启动一个简单的 spring boot 应用程序时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39691859/