尝试运行我的应用程序后，此处存在主类：
@SpringBootApplication public class RappersInfo {
public static void main(String[] args) {
SpringApplication.run(RappersInfo.class, args);
} @Component
public class JspContextCustomizer implements TomcatContextCustomizer {
@Override
public void customize(Context context) {
JspPropertyGroup group = new JspPropertyGroup();
group.addUrlPattern("/*");
group.setPageEncoding("UTF-8");
context.setJspConfigDescriptor(new JspConfigDescriptorImpl(
Collections.singletonList(new JspPropertyGroupDescriptorImpl(group)),
Collections.emptyList()));
}
}
}
尝试运行该类后我收到该错误：
org.springframework.context.ApplicationContextException：无法启动bean“webServerStartStop”；嵌套异常是 org.springframework.boot.web.server.WebServerException: 无法启动嵌入式 Tomcat 服务器
在 org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181) ~[spring-context-5.3.24.jar:5.3.24]
在 org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.24.jar:5.3.24]
在 org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.24.jar:5.3.24]
在 java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
在 org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.24.jar:5.3.24]
在 org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.24.jar:5.3.24]
在 org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.24.jar:5.3.24]
在 org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.24.jar:5.3.24]
在 org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.6.jar:2.7.6]
在 com.example.RappersInfo.demo.RappersInfo.main(RappersInfo.java:20) ~[classes/:na]
在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(本机方法) ~[na:na]
在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
在 java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
在 org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.7.6.jar:2.7.6]
导致：org.springframework.boot.web.server.WebServerException：无法启动嵌入式Tomcat服务器
在 org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:229) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.start(WebServerStartStopLifecycle.java:43) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.24.jar:5.3.24]
19个常用帧省略
引起：org.springframework.boot.web.server.WebServerException：Web应用程序[]中的Servlet [jsp]抛出load()异常
在 org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.load(TomcatEmbeddedContext.java:86) ~[spring-boot-2.7.6.jar:2.7.6]
在 java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) ~[na:na]
在 java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na]
在 java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[na:na]
在 java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) ~[na:na]
在 java.base/java.util.TreeMap$ValueSpliterator.forEachRemaining(TreeMap.java:3215) ~[na:na]
在 java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na]
在 java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na]
在 java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[na:na]
在 java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[na:na]
在 java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
在 java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) ~[na:na]
在 org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.lambda$deferredLoadOnStartup$0(TomcatEmbeddedContext.java:64) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.doWithThreadContextClassLoader(TomcatEmbeddedContext.java:105) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.deferredLoadOnStartup(TomcatEmbeddedContext.java:63) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.web.embedded.tomcat.TomcatWebServer.performDeferredLoadOnStartup(TomcatWebServer.java:305) ~[spring-boot-2.7.6.jar:2.7.6]
在 org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:216) ~[spring-boot-2.7.6.jar:2.7.6]
21个常用帧省略
引起：javax.servlet.ServletException：类 [org.apache.jasper.servlet.JspServlet] 不是 Servlet
在 org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1072) ~[tomcat-embed-core-9.0.69.jar:9.0.69]
在 org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1007) ~[tomcat-embed-core-9.0.69.jar:9.0.69]
在 org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.load(TomcatEmbeddedContext.java:81) ~[spring-boot-2.7.6.jar:2.7.6]
37个常用帧省略
引起原因：java.lang.ClassCastException：类org.apache.jasper.servlet.JspServlet无法转换为类javax.servlet.Servlet（org.apache.jasper.servlet.JspServlet和javax.servlet.Servlet位于未命名模块中加载器“应用程序”）
在 org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1067) ~[tomcat-embed-core-9.0.69.jar:9.0.69]
39个常用帧省略
这是我的 pom.xml：
<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>2.7.6</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example.RappersInfo</groupId>
<artifactId>demo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>rappersInfoImage</name>
<description>Demo project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>17</java.version>
</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-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>11.0.0-M1</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>glassfish-jstl</artifactId>
<version>11.0.2</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>5.1.3</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>3.6.0</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap-datepicker</artifactId>
<version>1.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>11.0.0-M1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>```
What can i do?
Tried almost everything what was in the internet.
Error happens after changing spring boot version from 3.x. to 2.7.6 (i want to deploy it with war file). Im not sure about my pom.xml. Maybe there is a problem with tomcat dependencies?
如果您的地址或端口不正确/已使用，则会出现类似的错误。这可以修复大多数情况下的错误，但是像上面提到的驱动程序可能会导致该错误。
尝试更改端口号8080到别的东西。如果这还不够，那么我遇到的另一个实例如下：
为个人网络接口控制器（NIC）安装了控制软件，允许同时使用以太网和 WiFi。安装这个据说是为了改善游戏体验，但在 Spring 中与 tomcat 配合不佳。一旦禁用，应用程序就能够按预期运行。其描述如下：
这是已安装卡的网络接口 Carr 驱动程序。根据安装的卡和驱动程序的不同，它会有所不同 - 您可以通过查看 Windows 上的设备管理器来查看驱动程序。
希望对你有帮助！！
本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系:hwhale#tublm.com(使用前将#替换为@)
