在 Spring Boot App 中启动 ApplicationContext 时出错

Question

我正在尝试使用简单的 spring 启动应用程序。我在 ApplicationContext 上启动应用程序时遇到问题。

2017-04-26 11:17:31.101 WARN 14528 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'standardJacksonObjectMapperBuilderCustomizer' defined in class path resource [org/springframework/boot/autoconfigure/jackson/JacksonAutoConfiguration$Jackson2ObjectMapperBuilderCustomizerConfiguration.class]: Unsatisfied dependency expressed through method 'standardJacksonObjectMapperBuilderCustomizer' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'spring.jackson-org.springframework.boot.autoconfigure.jackson.JacksonProperties': Initialization of bean failed; nested exception is javax.validation.ValidationException: Unable to create a Configuration, because no Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath. 2017-04-26 11:17:31.116 INFO 14528 --- [ main] utoConfigurationReportLoggingInitializer :

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 2017-04-26 11:17:31.121 ERROR 14528 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :

我在启动应用程序时遇到了上述错误。我正在使用 spring boot 1.5.1.RELEASE 版本。

有需要的请多多指教。

编辑 1

编辑 2

package com.hello;

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

@SpringBootApplication
public class HelloWorld{

public static void main(String[] args) {
    // TODO Auto-generated method stub
    SpringApplication.run(HelloWorld.class, args);
}

}

Answer 1

Jackson 库似乎不适用于此引导项目。手动添加 Jackson 库或添加以下将在内部导入 Jackson 库的依赖项。

<?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>

    <name>helloWorld</name>
    <version>0.0.0-SNAPSHOT</version>
    <groupId>com.test</groupId>
    <artifactId>test</artifactId>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.1.RELEASE</version>
    </parent>

    <packaging>jar</packaging>

    <properties>
        <dozer.version>5.4.0</dozer.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-feign</artifactId>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Camden.SR5</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>

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

Answer 2

我通过排除 pom.xml 中的 hibernate-validator 依赖关系解决了这个问题。它工作正常，没有任何问题。

Answer 3

通过为 Jackson 添加以下依赖项解决了该问题：

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-autoconfigure</artifactId>
      <version>1.2.1.RELEASE</version> 
</dependency>

还要确保删除 Jackson 的类路径条目

在 Spring Boot App 中启动 ApplicationContext 时出错

Error starting ApplicationContext in Spring Boot App

java

spring

spring-mvc

spring-boot

spring-bean