运行 spring 本地主机中的引导应用程序出错
Error in running spring boot application in localhost
我是 spring 引导的初学者，我无法在服务器上 spring 引导应用程序。我使用 tomcat 服务器和 IDE 作为 eclipse。我想在浏览器中 运行 我的应用程序。
我的控制台在这里
:: Spring Boot :: (v2.4.1)
2021-01-14 09:36:34.144 INFO 14508 --- [ main] com.example.demo.FirstApp1Application : Starting FirstApp1Application using Java 15.0.1 on DESKTOP-TCH1T7S with PID 14508 (E:\springboot\FirstApp1\target\classes started by Samanthika in E:\springboot\FirstApp1)
2021-01-14 09:36:34.160 INFO 14508 --- [ main] com.example.demo.FirstApp1Application : No active profile set, falling back to default profiles: default
2021-01-14 09:36:35.384 INFO 14508 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2021-01-14 09:36:35.397 INFO 14508 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-01-14 09:36:35.397 INFO 14508 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.41]
2021-01-14 09:36:35.507 INFO 14508 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-01-14 09:36:35.508 INFO 14508 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1283 ms
2021-01-14 09:36:35.730 INFO 14508 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2021-01-14 09:36:35.842 WARN 14508 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'resourceHandlerMapping' threw exception; nested exception is java.lang.NoSuchMethodError: 'org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.setUseLastModified(boolean)'
2021-01-14 09:36:35.843 INFO 14508 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2021-01-14 09:36:35.846 INFO 14508 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2021-01-14 09:36:35.864 INFO 14508 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-01-14 09:36:35.879 ERROR 14508 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.addResourceHandlers(WebMvcAutoConfiguration.java:339)
The following method did not exist:
'org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.setUseLastModified(boolean)'
The method's class, org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration, is available from the following locations:
jar:file:/C:/Users/Samanthika/.m2/repository/org/springframework/spring-webmvc/5.2.12.RELEASE/spring-webmvc-5.2.12.RELEASE.jar!/org/springframework/web/servlet/config/annotation/ResourceHandlerRegistration.class
The class hierarchy was loaded from the following locations:
org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration: file:/C:/Users/Samanthika/.m2/repository/org/springframework/spring-webmvc/5.2.12.RELEASE/spring-webmvc-5.2.12.RELEASE.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration
这是我的 pom.xml 文件。 hera 我添加了两个依赖项，除了默认的网络依赖项
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>FirstApp1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>FirstApp1</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<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>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.3.7.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这里是FirstApp1Application.javaclass
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Component;
@SpringBootApplication
public class FirstApp1Application {
public static void main(String[] args) {
SpringApplication.run(FirstApp1Application.class, args);
System.out.println("Welcome");
}
}
package com.example.demo;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HomeController {
@RequestMapping(value="/welcome")
public static String Welcome(){
return "Welcome to spring boot";
}
}
在 class 路径资源 [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class] 中创建名称为 'resourceHandlerMapping' 的 bean 时出错：通过工厂方法实例化 Bean 失败；嵌套异常是 org.springframework.beans.BeanInstantiationException：无法实例化 [org.springframework.web.servlet.HandlerMapping]：工厂方法 'resourceHandlerMapping' 抛出异常；嵌套异常是 java.lang.NoSuchMethodError: 'org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.setUseLastModified(boolean)'
根据上述行，你没有用@Component注解class，IOC无法注册
很可能您正在使用不兼容的模块。这也是错误消息所说的：
Correct the classpath of your application so that it contains a
single, compatible version of
org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration
为了解决这个问题，请转到 https://start.spring.io/ 并根据您的需要生成一个项目。对于“MVC 项目”，您只需要 spring-boot-starter-parent 和 spring-boot-starter-web；你绝对不应该引入 webmvc，这里有一个示例 pom:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>15</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
只需尝试从 spring-boot-starter-web 依赖项中删除版本标记并从 pom.xml 文件中删除 spring-webmvc 依赖项。
正在从此依赖项中删除版本标记。
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
我是 spring 引导的初学者，我无法在服务器上 spring 引导应用程序。我使用 tomcat 服务器和 IDE 作为 eclipse。我想在浏览器中 运行 我的应用程序。 我的控制台在这里
:: Spring Boot :: (v2.4.1)
2021-01-14 09:36:34.144 INFO 14508 --- [ main] com.example.demo.FirstApp1Application : Starting FirstApp1Application using Java 15.0.1 on DESKTOP-TCH1T7S with PID 14508 (E:\springboot\FirstApp1\target\classes started by Samanthika in E:\springboot\FirstApp1)
2021-01-14 09:36:34.160 INFO 14508 --- [ main] com.example.demo.FirstApp1Application : No active profile set, falling back to default profiles: default
2021-01-14 09:36:35.384 INFO 14508 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2021-01-14 09:36:35.397 INFO 14508 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-01-14 09:36:35.397 INFO 14508 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.41]
2021-01-14 09:36:35.507 INFO 14508 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-01-14 09:36:35.508 INFO 14508 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1283 ms
2021-01-14 09:36:35.730 INFO 14508 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2021-01-14 09:36:35.842 WARN 14508 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'resourceHandlerMapping' threw exception; nested exception is java.lang.NoSuchMethodError: 'org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.setUseLastModified(boolean)'
2021-01-14 09:36:35.843 INFO 14508 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2021-01-14 09:36:35.846 INFO 14508 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2021-01-14 09:36:35.864 INFO 14508 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-01-14 09:36:35.879 ERROR 14508 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.addResourceHandlers(WebMvcAutoConfiguration.java:339)
The following method did not exist:
'org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.setUseLastModified(boolean)'
The method's class, org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration, is available from the following locations:
jar:file:/C:/Users/Samanthika/.m2/repository/org/springframework/spring-webmvc/5.2.12.RELEASE/spring-webmvc-5.2.12.RELEASE.jar!/org/springframework/web/servlet/config/annotation/ResourceHandlerRegistration.class
The class hierarchy was loaded from the following locations:
org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration: file:/C:/Users/Samanthika/.m2/repository/org/springframework/spring-webmvc/5.2.12.RELEASE/spring-webmvc-5.2.12.RELEASE.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration
这是我的 pom.xml 文件。 hera 我添加了两个依赖项，除了默认的网络依赖项
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>FirstApp1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>FirstApp1</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<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>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.3.7.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这里是FirstApp1Application.javaclass
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Component;
@SpringBootApplication
public class FirstApp1Application {
public static void main(String[] args) {
SpringApplication.run(FirstApp1Application.class, args);
System.out.println("Welcome");
}
}
package com.example.demo;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HomeController {
@RequestMapping(value="/welcome")
public static String Welcome(){
return "Welcome to spring boot";
}
}
在 class 路径资源 [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class] 中创建名称为 'resourceHandlerMapping' 的 bean 时出错：通过工厂方法实例化 Bean 失败；嵌套异常是 org.springframework.beans.BeanInstantiationException：无法实例化 [org.springframework.web.servlet.HandlerMapping]：工厂方法 'resourceHandlerMapping' 抛出异常；嵌套异常是 java.lang.NoSuchMethodError: 'org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.setUseLastModified(boolean)'
根据上述行，你没有用@Component注解class，IOC无法注册
很可能您正在使用不兼容的模块。这也是错误消息所说的：
Correct the classpath of your application so that it contains a single, compatible version of org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration
为了解决这个问题，请转到 https://start.spring.io/ 并根据您的需要生成一个项目。对于“MVC 项目”，您只需要 spring-boot-starter-parent 和 spring-boot-starter-web；你绝对不应该引入 webmvc，这里有一个示例 pom:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>15</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
只需尝试从 spring-boot-starter-web 依赖项中删除版本标记并从 pom.xml 文件中删除 spring-webmvc 依赖项。
正在从此依赖项中删除版本标记。
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>