I just started learning how to make Spring MVC applications. Installed Tomcat 9. The error is most likely that the mapping does not work. Also i use thymeleaf. The execution of the program basically does not reach my Java code (I set breakpoints and the application did not stop).
I have tried installing different versions of Tomcat
I also checked the port and entered the correct URL. I would also like to note that when entering the full path to the hello.html file (relative to the webapp), in my case http://localhost:8080/views/hello.html, it also gives a 404 error, but everything will work with the jsp file http://localhost:8080/views/hello.jsp (but it’s still not the right thing, because the mapping doesn’t work).
As planned, hello.html should be displayed in the browser when you
enter the string http://localhost:8080/helloW in the url.
The problem is that when I type in the URL http://localhost:8080/helloW and see:
I also tried to put different Application Context in the configuration:
My project structure:
Below i going to show code of my classes:
HelloController:
package edu.vega.spring;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class HelloController {
@GetMapping(value = {"/helloW", "/"})
public String sayHello(){
return "hello";
}
}
MySpringMVCDispatcherServletInitializer:
package edu.vega.spring.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class MySpringMVCDispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return null;
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] {SpringConfig.class};
}
@Override
protected String[] getServletMappings() {
return new String[]{"/"};
}
}
SpringConfig:
package edu.vega.spring.config;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.thymeleaf.spring5.SpringTemplateEngine;
import org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver;
import org.thymeleaf.spring5.view.ThymeleafViewResolver;
@Configuration
@ComponentScan("edu.vega.spring")
@EnableWebMvc
public class SpringConfig implements WebMvcConfigurer {
private final ApplicationContext applicationContext;
@Autowired
public SpringConfig(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
@Bean
public SpringResourceTemplateResolver templateResolver() {
SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
templateResolver.setApplicationContext(applicationContext);
templateResolver.setPrefix("views/");
templateResolver.setSuffix(".html");
return templateResolver;
}
@Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver());
templateEngine.setEnableSpringELCompiler(true);
return templateEngine;
}
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
resolver.setTemplateEngine(templateEngine());
registry.viewResolver(resolver);
}
}
pom.xml (dependencies):
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring5</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>jakarta.servlet</groupId>
<artifactId>jakarta.servlet-api</artifactId>
<version>6.0.0</version>
</dependency>
</dependencies>
<build>
<finalName>spring_web_app1</finalName>
</build>
</project>
I tried a lot of things, but it doesn’t work, I’m already thinking about completely changing the OS to Ubuntu and maybe then it will help.
All logs that i have (now i in Access Log):
Output:
127.0.0.1 - - [07/Jul/2023:11:30:41 +0300] "GET / HTTP/1.1" 200 48
127.0.0.1 - - [07/Jul/2023:11:30:41 +0300] "GET / HTTP/1.1" 200 48
0:0:0:0:0:0:0:1 - - [07/Jul/2023:11:30:41 +0300] "GET / HTTP/1.1" 200 48
0:0:0:0:0:0:0:1 - - [07/Jul/2023:11:30:47 +0300] "GET /helloW HTTP/1.1" 404 682
LocalHost log output:
07-Jul-2023 11:30:40.491 INFO [RMI TCP Connection(2)-127.0.0.1] org.apache.catalina.core.ApplicationContext.log Marking servlet [dispatcher] as unavailable
07-Jul-2023 11:30:40.492 SEVERE [RMI TCP Connection(2)-127.0.0.1] org.apache.catalina.core.StandardContext.loadOnStartup Servlet [dispatcher] in web application [] threw load() exception
java.lang.ClassCastException: class org.springframework.web.servlet.DispatcherServlet cannot be cast to class javax.servlet.Servlet (org.springframework.web.servlet.DispatcherServlet is in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @168986bb; javax.servlet.Servlet is in unnamed module of loader java.net.URLClassLoader @3aeaafa6)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1020)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:960)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4673)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4980)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:683)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:658)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:662)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1782)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:294)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:803)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:460)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:408)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:294)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:803)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
at java.management/com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:472)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1472)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1310)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1412)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:360)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:598)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:844)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:721)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:720)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1623)
Exception with Tomcat 10+
12-Jul-2023 13:32:02.151 SEVERE [RMI TCP Connection(2)-127.0.0.1] org.apache.catalina.core.ApplicationContext.log Servlet.init() for servlet [dispatcher] threw exception
java.lang.NoSuchMethodError: 'void org.springframework.web.context.support.ServletContextResourceLoader.<init>(jakarta.servlet.ServletContext)'
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:155)
at jakarta.servlet.GenericServlet.init(GenericServlet.java:143)
at jakarta.servlet.http.HttpServlet.init(HttpServlet.java:121)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:944)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:901)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:805)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4633)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4926)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:683)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:658)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:713)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1821)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:294)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:803)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:376)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:294)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:803)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
at java.management/com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:472)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1472)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1310)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1412)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:360)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:598)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:844)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:721)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:720)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1623)
12-Jul-2023 13:32:02.151 SEVERE [RMI TCP Connection(2)-127.0.0.1] org.apache.catalina.core.StandardContext.loadOnStartup Servlet [dispatcher] in web application [] threw load() exception
java.lang.NoSuchMethodError: 'void org.springframework.web.context.support.ServletContextResourceLoader.<init>(jakarta.servlet.ServletContext)'
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:155)
at jakarta.servlet.GenericServlet.init(GenericServlet.java:143)
at jakarta.servlet.http.HttpServlet.init(HttpServlet.java:121)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:944)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:901)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:805)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4633)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4926)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:683)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:658)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:713)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1821)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:294)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:803)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:376)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:294)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:803)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
at java.management/com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:472)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1472)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1310)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1412)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:360)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:598)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:844)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:721)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:720)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1623)
Exception with spring5 and thymeleaf5
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.thymeleaf.spring5.view.ThymeleafViewResolver#0' defined in ServletContext resource [/WEB-INF/applicationContextMVC.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'debug' of bean class [org.thymeleaf.spring5.view.ThymeleafViewResolver]: Bean property 'debug' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
My pom.xml with openJDK 20:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>edu.vega.spring</groupId>
<artifactId>spring_web_app1</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>spring_web_app1 Maven Webapp</name>
<url>https://maven.apache.org</url>
<properties>
<maven.compiler.source>20</maven.compiler.source>
<maven.compiler.target>20</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>6.0.11</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>6.0.11</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>6.0.11</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>6.0.11</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring6</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>jakarta.servlet</groupId>
<artifactId>jakarta.servlet-api</artifactId>
<version>6.0.0</version>
</dependency>
</dependencies>
<build>
<finalName>spring_web_app1</finalName>
</build>
</project>
Error log with pom.xml above (sorry for screenshot but 30k symbols limit in body):
2
Answers
So, in 1 week i solve my problem and i hope if someone take a same problem my answer help you.
All dependencies in pom.xml was right (jakarta-api 6 with spring6 and thymeleaf6) ofc i need use TomCat 10+ for Spring 6+ (10.1.11 - currently my version).
I tried use
mvn clean installcommand in the terminal and i see that problem:org.codehaus.plexus.component.repository.exception.ComponentLookupException: Cannot access defaults field of Properties
The problem is related to version compatibility of the Maven War Plugin.
After that i add plugin with new version:
And after that if u run use
mvn clean installu will take an error with web.xml and u need add that file and use basic config (u can find it in google) after configurating web.xml u can usemvn clean install.My full pom.xml:
Spring 6.0 requires the new
jakarta.servletnamespace instead ofjavax.servlet. So you’ll need Tomcat 10, it appears.https://spring.io/blog/2022/11/16/spring-framework-6-0-goes-ga
https://tomcat.apache.org/migration-10.html