在previous question之后,我询问了有关将Sping Boot 和React集成在一起的问题,我使用该解决方案解决了Spring Boot查找React构建文件以及显示来自API请求的信息的问题。
另一个意想不到的问题出现了- Apache Tomcat无法部署这些更改所导致的war
文件。但是,当项目在IDE中工作时,它是完美的。
尝试启动项目时,会发生以下情况:
首先,这是堆栈跟踪:
09-Mar-2023 15:53:27.129 INFO [http-nio-8080-exec-18] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/backend]
09-Mar-2023 15:53:37.395 INFO [http-nio-8080-exec-21] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\backend.war]
09-Mar-2023 15:53:42.775 INFO [http-nio-8080-exec-21] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
09-Mar-2023 15:53:55.329 SEVERE [http-nio-8080-exec-21] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\backend.war]
java.lang.IllegalStateException: Error starting child
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:698)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:696)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1023)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:543)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1689)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:293)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1614)
at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:291)
at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:209)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:696)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:779)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:203)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:126)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:177)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:660)
at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:378)
at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:56)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:891)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1784)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/backend]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
... 47 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'application': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javafx.application.Application]: Is it an abstract class?; nested exception is java.lang.InstantiationException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1232)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:175)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:155)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:97)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:174)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5211)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
... 48 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javafx.application.Application]: Is it an abstract class?; nested exception is java.lang.InstantiationException
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:215)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1326)
... 68 more
Caused by: java.lang.InstantiationException
at java.base/jdk.internal.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211)
... 70 more
09-Mar-2023 15:53:55.331 INFO [http-nio-8080-exec-21] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\backend.war] has finished in [17,937] ms
09-Mar-2023 15:54:03.325 INFO [http-nio-8080-exec-23] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
以下是各种代码的详细信息:
package.json:
{
"name": "frontend",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.16.5",
"@testing-library/react": "^13.4.0",
"@testing-library/user-event": "^13.5.0",
"antd": "^5.1.6",
"axios": "^1.2.1",
"bootstrap": "^5.2.3",
"clsx": "^1.2.1",
"moment": "^2.29.4",
"react": "^18.2.0",
"react-bootstrap": "^2.7.0",
"react-calendar": "^4.0.0",
"react-dom": "^18.2.0",
"react-router-dom": "^6.4.3",
"react-scripts": "5.0.1",
"react-table": "^7.8.0",
"validator": "^13.7.0",
"web-vitals": "^2.1.4"
},
"homepage":".",
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"css-loader": "^6.7.3"
}
}
App.js:
class App extends Component {
render() {
return (
<HashRouter>
<div>
<Navigation />
<Routes>
<Route exact path="/" element={<Home />} />
<Route path="/about" element={<About />}/>
<Route path="/contact" element={<Contact />}/>
</Routes>
</div>
</HashRouter>
);
}
}
export default App;
UserController.java
package com.example.demo.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import com.example.demo.model.User;
import com.example.demo.service.UserService;
@Controller
public class UserController {
@Autowired
UserService userService;
@GetMapping(value = "/**/{path:[^\\.]*}")
public String forward() {
return "forward:/";
}
@GetMapping("/clients")
public List<User> getAllUsers() {
return userService.getAllUsers();
}
}
pom.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 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>2.7.9</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>backend_2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>backend-3</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<tomcat.version>9.0.71</tomcat.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-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</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.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
</dependencies>
<build>
<finalName>backend</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<addResources>true</addResources>
</configuration>
</plugin>
<plugin>
<groupId>com.github.eirslett</groupId>
<artifactId>frontend-maven-plugin</artifactId>
<version>1.12.1</version>
<executions>
<execution>
<id>Install node and npm</id>
<goals>
<goal>install-node-and-npm</goal>
</goals>
<phase>generate-resources</phase>
<configuration>
<nodeVersion>v19.6.1</nodeVersion>
<npmVersion>9.4.0</npmVersion>
</configuration>
</execution>
<!-- running npm install -->
<execution>
<id>npm install</id>
<goals>
<goal>npm</goal>
</goals>
<phase>generate-resources</phase>
<configuration>
<arguments>install</arguments>
</configuration>
</execution>
<!-- build production version -->
<execution>
<id>npm build</id>
<goals>
<goal>npm</goal>
</goals>
<phase>generate-resources</phase>
<configuration>
<arguments>run build</arguments>
</configuration>
</execution>
</executions>
<configuration>
<nodeVersion>v19.6.1</nodeVersion>
<workingDirectory>src/main/frontend</workingDirectory>
</configuration>
</plugin>
<!-- copy react build artigact to spring boot -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>Copy JavaScript app into SpringBoot</id>
<phase>process-resources</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>target/classes/static</outputDirectory>
<resources>
<resource>
<directory>src/main/frontend/build</directory>
<filtering>false</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
我想这是关于我工作所需的文件。
这个问题可以归结为Apache无法初始化User模型,或者这就是错误告诉我的。然而,Controller也不是任何意义上的抽象方法,而且在项目中也没有使用这样的方法。
为了记录在案,项目构建成功:
我尝试过的方法包括:
- Specify tomcat version
- authentication issue,,但这与项目无关(仍处于演示阶段)
- what seemed the most promising,将BrowserRouter更改为HashRouter,并将主页设置为句点,但没有任何结果。
- 在www.example.com文件中安排上下文路径application.properties,但这实际上并不适用于此应用的生产版本:
# these configuration details cannot be used for external Tomcat, they only work for the embedded version.
#server.servlet.context-path=/
#spring.mvc.servlet.path=/backend-3
- 已将
UserController
文件中的@RestController
更改为@Controller
。 - deploying the project on an external Tomcat,这实质上归结为在pom.xml文件中提供作用域。
- 另一个建议是把
@Autowired
放在模型中的构造函数上,但这对结果没有影响,而且看起来也不重要。否则,构造函数就是典型的字段,getter/setter,constructor,blank constructor和toString。
更新 - 我尝试的另一件事是将已构建项目的名称
backend
作为路由的一部分放入App.js
文件中,但没有成功;这是基于问题顶部连接的最后一个例子。我不认为这应该与前端路由相关,但是?
更新日期:2023年3月10日
Apache Tomcat和Java 11的版本之间没有版本冲突,我正在使用Java 11:
这个问题似乎是从静态路径上的index.html文件中的最后一个问题中删除正斜杠后开始的,这会阻止Apache Tomcat找到初始路径;似乎是另一个路径问题。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="shortcut icon" href="/favicon.ico">
<title>React App</title>
<link href="static/css/main.9a0fe4f1.css" rel="stylesheet">
</head>
<body>
<div id="root"></div>
<script type="text/javascript" src="static/js/main.f55352b1.js"></script>
</body>
</html>
我在其他任何地方都找不到这个特定的踪迹,但是在这个项目的上下文中,它的细节对我来说也没有什么意义。
提前感谢您的任何见解!
1条答案
按热度按时间rjee0c151#
问题是Tomcat找不到javafx.application.Application的实现,只找到了抽象定义。
这与reactJS或安全性无关,JavaFX和ReactJS被混合在一起让我感到奇怪--也许是无意的。
关键字是堆栈跟踪中的以下内容:导致错误原因:网站首页示例化[javafx.application.应用程序]失败:它是抽象类吗?嵌套异常是在org.springframework.beans.beanUtils.示例化类中的java.lang.示例化异常(BeanUtils.java:215)
我没有看到对javafx jar的依赖关系,因此推测IDE设置为提供它们。
尝试将以下内容添加到pom中以拉入所有javafx依赖项: