java - 失败 - 上下文路径中的应用程序无法启动

Question

我的 Spring Boot 应用程序正在运行，这是主类。

@SpringBootApplication
public class BwsApplication {
    private ConfigClass config;
    private static final Logger log = LoggerFactory.getLogger(Logs.class);

    public BwsApplication(ConfigClass configClass) {
        config = configClass;
    }

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

    @PostConstruct
    private void postConstruct() {
        Connection con = null;
        try {
            con = config.getConnection();
        } catch (SQLException e) {
            log.error(e.toString());
        }

        QuartzApp qa = new QuartzApp(config);
        qa.excecution();

    }
}

由于它的配置，我能够使用 maven 生成一个 jar 并且它工作正常，但现在我需要生成一个 WAR 文件，因为该应用程序必须作为 tomcat 服务器内的服务运行。

这是我第一次使用 Spring，所以我研究并发现要生成一个 war 文件，我需要在我的 pom.xml 和我的主类中进行更改，我做到了。

@SpringBootApplication
public class BwsApplication extends SpringBootServletInitializer {

    private ConfigClass config;
    private static final Logger log = LoggerFactory.getLogger(Logs.class);

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(BwsApplication.class);
    }

    public BwsApplication(ConfigClass configClass) {
        config = configClass;
    }

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

    @PostConstruct
    private void postConstruct() {
        Connection con = null;
        try {
            con = config.getConnection();
        } catch (SQLException e) {
            log.error(e.toString());
        }
        QuartzApp qa = new QuartzApp(config);
        qa.excecution();
    }
}

我的主类发生了变化……我把它扩展到 SpringBootServletInitializer 并添加了 configure 方法。

我还修改了我的 pom.xml，他的是完整的 .xml

<?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>

    <groupId>com.speedsoft</groupId>
    <artifactId>bedelServer</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <!--    <packaging>jar</packaging>-->
    <packaging>war</packaging>

    <name>bedel</name>
    <description>BWS</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.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>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
        <java.version>1.8</java.version>
        <quartz.version>2.2.1</quartz.version>
        <jooq.version>3.9.1</jooq.version>
        <logback.version>1.2.3</logback.version>
        <logbackaccess.version>1.3.0-alpha4</logbackaccess.version>
        <mysql.version>6.0.3</mysql.version>
        <exec-maven-plugin>1.7</exec-maven-plugin>

        <start-class>com.speedsoft.bws.BwsApplication</start-class>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
           <scope>provided</scope>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>${quartz.version}</version>
        </dependency>

        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz-jobs</artifactId>
            <version>${quartz.version}</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>

        <dependency>
            <groupId>org.jooq</groupId>
            <artifactId>jooq</artifactId>
            <version>${jooq.version}</version>
        </dependency>

        <dependency>
            <groupId>org.jooq</groupId>
            <artifactId>jooq-meta</artifactId>
            <version>${jooq.version}</version>
        </dependency>

        <dependency>
            <groupId>org.jooq</groupId>
            <artifactId>jooq-codegen</artifactId>
            <version>${jooq.version}</version>
        </dependency>

        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>${logback.version}</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jul-to-slf4j</artifactId>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>log4j-over-slf4j</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-commons</artifactId>
            <version>2.0.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-access</artifactId>
            <version>${logbackaccess.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.3.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.9</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.0.1</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>${exec-maven-plugin.version}</version>
                <configuration>
                    <mainClass>com.speedsoft.bws.BwsApplication</mainClass>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>

<!--plugin exe-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <executable>true</executable>
                </configuration>
            </plugin>
        </plugins>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>

            <!-- inserida para teste -->
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>**/*.properties</include>
                </includes>

            </resource>
        </resources>
    </build>
</project>

进行这些更改后，当我尝试在 intellij 中运行应用程序时出现此错误

09-04-2019 15:04:14.247 [main] INFO  o.s.c.a.AnnotationConfigApplicationContext.prepareRefresh - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@61dd025: startup date [Tue Apr 09 15:04:14 BRT 2019]; root of context hierarchy
09-04-2019 15:04:16.312 [main] WARN  o.s.c.a.AnnotationConfigApplicationContext.refresh - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.speedsoft.bws.BwsApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.servlet.support.SpringBootServletInitializer
09-04-2019 15:04:16.387 [main] ERROR o.s.boot.SpringApplication.reportFailure - Application run failed
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.speedsoft.bws.BwsApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.servlet.support.SpringBootServletInitializer
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:316)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243)
    at com.speedsoft.bws.BwsApplication.main(BwsApplication.java:34)
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.servlet.support.SpringBootServletInitializer
    at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:169)
    at org.springframework.context.annotation.ConfigurationClassParser.retrieveBeanMethodMetadata(ConfigurationClassParser.java:390)
    at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:315)
    at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:202)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:170)
    ... 12 common frames omitted
Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContext
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.getDeclaredMethods(Class.java:1975)
    at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:158)
    ... 17 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContext
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 21 common frames omitted

Process finished with exit code 1

我按照提示操作，现在我可以在 IDE 中运行应用程序，只有在尝试在 tomcat 中启动应用程序时才会构建 war(package maven)时出现错误失败 - 上下文路径 [/bedelServer-0.0.1-SNAPSHOT] 中的应用程序无法启动

TomCat 日志

09-Apr-2019 14:07:08.442 INFORMAÇÕES [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/bedel]
09-Apr-2019 14:29:31.736 INFORMAÇÕES [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\bedelServer-0.0.1-SNAPSHOT.war]
09-Apr-2019 14:29:48.097 GRAVE [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.core.StandardContext.startInternal Error during ServletContainerInitializer processing
 javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:158)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5098)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:986)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1858)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:772)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:426)
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1629)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:304)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1179)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1401)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1405)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1373)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodException: com.speedsoft.bws.BwsApplication.<init>()
    at java.lang.Class.getConstructor0(Unknown Source)
    at java.lang.Class.getDeclaredConstructor(Unknown Source)
    at org.springframework.util.ReflectionUtils.accessibleConstructor(ReflectionUtils.java:503)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:155)
    ... 21 more

Answer 1

我认为您需要将范围从提供更新为编译

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>compile</scope>
        </dependency>