Spring 5 个样板项目无法 运行
Spring 5 boilerplate project unable to run
我正在尝试 Spring 5 上的教程，我尝试通过 start.spring.io 使用默认元数据创建 Spring 引导项目。
将其导入 Spring 工具套件
Version: 3.9.2.RELEASE
Build Id: 201712210947
Platform: Eclipse Oxygen.2 (4.7.2)
当我 运行 通过 Spring 引导应用程序时，我收到此异常
Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/framework/AopProxyUtils
at org.springframework.context.event.AbstractApplicationEventMulticaster.addApplicationListener(AbstractApplicationEventMulticaster.java:105)
at org.springframework.boot.context.event.EventPublishingRunListener.<init>(EventPublishingRunListener.java:56)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.aop.framework.AopProxyUtils
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 14 more
所以我将依赖项放在 pom.xml 中，这是我更新后的 pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.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-actuator</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-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.4</version>
</dependency>
</dependencies>
当我尝试 运行 使用更新后的 pom.xml,
15:33:01.349 [main] DEBUG org.springframework.boot.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre/lib/resources.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre/lib/rt.jar,
..
15:33:01.353 [main] ERROR org.springframework.boot.SpringApplication - Application startup failed
java.lang.NullPointerException: null
at org.springframework.core.BridgeMethodResolver.findBridgedMethod(BridgeMethodResolver.java:60)
at org.springframework.beans.GenericTypeAwarePropertyDescriptor.<init>(GenericTypeAwarePropertyDescriptor.java:70)
$ mvn -v
Apache Maven 3.5.2 (138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T15:58:13+08:00)
Maven home: /opt/apache-maven-3.5.2
Java version: 1.8.0_151, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.13.3", arch: "x86_64", family: "mac"
$ java -version
java version "1.8.0_151"
Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)
您没有提供重现问题的信息，所以这就是我的尝试...
- 从 SPRING 我下载的 INITIALIZR 页面 demo.zip
- 我使用
mvn clean install 构建了它
- 我 运行 使用
java -jar target\demo-0.0.1-SNAPSHOT.jar 来自同一文件夹的应用程序，仅此而已
构建必须成功完成：
$ mvn clean install
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 13.346 s
[INFO] Finished at: 2018-02-02T09:02:15+01:00
[INFO] Final Memory: 35M/314M
[INFO] ------------------------------------------------------------------------
日志：
$ java -jar target\demo-0.0.1-SNAPSHOT.jar
. ____ _ __ _ _
/\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.10.RELEASE)
2018-02-02 09:02:27.556 INFO 18588 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on CZCHOWN5019295 with PID 18588 (C:\betlista\DGF_MDM\tmp\demo\target\demo-0.0.1-SNAPSHOT.jar started by msuska in c:\betlista\DGF_MDM\tmp\demo)
2018-02-02 09:02:27.560 INFO 18588 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2018-02-02 09:02:27.647 INFO 18588 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@255316f2: startup date [Fri Feb 02 09:02:27 CET 2018]; root of context hierarchy
2018-02-02 09:02:28.551 INFO 18588 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-02-02 09:02:28.578 INFO 18588 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 1.571 seconds (JVM running for 2.332)
2018-02-02 09:02:28.579 INFO 18588 --- [ Thread-2] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@255316f2: startup date [Fri Feb 02 09:02:27 CET 2018]; root of context hierarchy
2018-02-02 09:02:28.581 INFO 18588 --- [ Thread-2] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
我的 Java 和 Maven 版本：
$ mvn -v
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T17:41:47+01:00)
Maven home: c:\betlista\progs\apache-maven-3.3.9\bin\..
Java version: 1.8.0_74, vendor: Oracle Corporation
Java home: c:\java\jdk1.8.0_74\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"
$ java -version
java version "1.8.0_141"
Java(TM) SE Runtime Environment (build 1.8.0_141-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.141-b15, mixed mode)
初始pom.xml依赖项：
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
快速检查 - 删除所有额外的 spring 依赖项解决了问题。
换句话说，我删除了所有 <groupId>org.springframework</groupId> 因为它应该存在，因为 Spring 引导，所以很可能不兼容的版本...
您可以使用 mvn dependency:tree 进一步调查。似乎 Spring 启动使用的是 Spring 4.3.14，而不是您添加的 5.0.3...
为了解决您原来的问题 - 对于 AopProxyUtils，它在 spring-aop 中，在 spring-boot-starter-aop 中，也在 [=49= 中]-boot-starter-web 或 spring-boot-starter-data-jpa 你已经有...
如果你今天想使用 Spring 启动测试 Spring 5，你必须在 http://start.spring.io/
中选择 "Spring Boot 2.0.0 RC1"
我正在尝试 Spring 5 上的教程，我尝试通过 start.spring.io 使用默认元数据创建 Spring 引导项目。
将其导入 Spring 工具套件
Version: 3.9.2.RELEASE
Build Id: 201712210947
Platform: Eclipse Oxygen.2 (4.7.2)
当我 运行 通过 Spring 引导应用程序时，我收到此异常
Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/framework/AopProxyUtils
at org.springframework.context.event.AbstractApplicationEventMulticaster.addApplicationListener(AbstractApplicationEventMulticaster.java:105)
at org.springframework.boot.context.event.EventPublishingRunListener.<init>(EventPublishingRunListener.java:56)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.aop.framework.AopProxyUtils
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 14 more
所以我将依赖项放在 pom.xml 中，这是我更新后的 pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.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-actuator</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-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.4</version>
</dependency>
</dependencies>
当我尝试 运行 使用更新后的 pom.xml,
15:33:01.349 [main] DEBUG org.springframework.boot.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre/lib/resources.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre/lib/rt.jar,
..
15:33:01.353 [main] ERROR org.springframework.boot.SpringApplication - Application startup failed
java.lang.NullPointerException: null
at org.springframework.core.BridgeMethodResolver.findBridgedMethod(BridgeMethodResolver.java:60)
at org.springframework.beans.GenericTypeAwarePropertyDescriptor.<init>(GenericTypeAwarePropertyDescriptor.java:70)
$ mvn -v
Apache Maven 3.5.2 (138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T15:58:13+08:00)
Maven home: /opt/apache-maven-3.5.2
Java version: 1.8.0_151, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.13.3", arch: "x86_64", family: "mac"
$ java -version
java version "1.8.0_151"
Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)
您没有提供重现问题的信息，所以这就是我的尝试...
- 从 SPRING 我下载的 INITIALIZR 页面 demo.zip
- 我使用
mvn clean install 构建了它
- 我 运行 使用
java -jar target\demo-0.0.1-SNAPSHOT.jar来自同一文件夹的应用程序，仅此而已
构建必须成功完成：
$ mvn clean install
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 13.346 s
[INFO] Finished at: 2018-02-02T09:02:15+01:00
[INFO] Final Memory: 35M/314M
[INFO] ------------------------------------------------------------------------
日志：
$ java -jar target\demo-0.0.1-SNAPSHOT.jar
. ____ _ __ _ _
/\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.10.RELEASE)
2018-02-02 09:02:27.556 INFO 18588 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on CZCHOWN5019295 with PID 18588 (C:\betlista\DGF_MDM\tmp\demo\target\demo-0.0.1-SNAPSHOT.jar started by msuska in c:\betlista\DGF_MDM\tmp\demo)
2018-02-02 09:02:27.560 INFO 18588 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2018-02-02 09:02:27.647 INFO 18588 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@255316f2: startup date [Fri Feb 02 09:02:27 CET 2018]; root of context hierarchy
2018-02-02 09:02:28.551 INFO 18588 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-02-02 09:02:28.578 INFO 18588 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 1.571 seconds (JVM running for 2.332)
2018-02-02 09:02:28.579 INFO 18588 --- [ Thread-2] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@255316f2: startup date [Fri Feb 02 09:02:27 CET 2018]; root of context hierarchy
2018-02-02 09:02:28.581 INFO 18588 --- [ Thread-2] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
我的 Java 和 Maven 版本：
$ mvn -v
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T17:41:47+01:00)
Maven home: c:\betlista\progs\apache-maven-3.3.9\bin\..
Java version: 1.8.0_74, vendor: Oracle Corporation
Java home: c:\java\jdk1.8.0_74\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"
$ java -version
java version "1.8.0_141"
Java(TM) SE Runtime Environment (build 1.8.0_141-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.141-b15, mixed mode)
初始pom.xml依赖项：
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
快速检查 - 删除所有额外的 spring 依赖项解决了问题。
换句话说，我删除了所有 <groupId>org.springframework</groupId> 因为它应该存在，因为 Spring 引导，所以很可能不兼容的版本...
您可以使用 mvn dependency:tree 进一步调查。似乎 Spring 启动使用的是 Spring 4.3.14，而不是您添加的 5.0.3...
为了解决您原来的问题 - 对于 AopProxyUtils，它在 spring-aop 中，在 spring-boot-starter-aop 中，也在 [=49= 中]-boot-starter-web 或 spring-boot-starter-data-jpa 你已经有...
如果你今天想使用 Spring 启动测试 Spring 5，你必须在 http://start.spring.io/
中选择 "Spring Boot 2.0.0 RC1"