我一直在關注
然后，當我查看 intellij 的控制臺時，出現以下錯誤：
2022-08-28 12:43:24.779 DEBUG 7476 --- [nio-8102-exec-3] o.s.web.servlet.DispatcherServlet : GET "/", parameters={}
2022-08-28 12:43:24.789 DEBUG 7476 --- [nio-8102-exec-3] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to com.jre.hireout.api.IndexController#home()
2022-08-28 12:43:24.805 DEBUG 7476 --- [nio-8102-exec-3] o.s.w.s.v.ContentNegotiatingViewResolver : Selected 'text/html' given [text/html, application/xhtml xml, image/avif, image/webp, image/apng, application/xml;q=0.9, application/signed-exchange;v=b3;q=0.9, */*;q=0.8]
2022-08-28 12:43:24.962 DEBUG 7476 --- [nio-8102-exec-3] o.s.web.servlet.DispatcherServlet : Completed 200 OK
2022-08-28 12:43:24.987 DEBUG 7476 --- [nio-8102-exec-2] o.s.web.servlet.DispatcherServlet : GET "/static/js/main.7097d855.js", parameters={}
2022-08-28 12:43:24.998 DEBUG 7476 --- [nio-8102-exec-4] o.s.web.servlet.DispatcherServlet : GET "/static/css/main.073c9b0a.css", parameters={}
2022-08-28 12:43:25.002 DEBUG 7476 --- [nio-8102-exec-4] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped to ResourceHttpRequestHandler [classpath [META-INF/resources/], classpath [resources/], classpath [static/], classpath [public/], ServletContext [/]]
2022-08-28 12:43:25.002 DEBUG 7476 --- [nio-8102-exec-2] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped to ResourceHttpRequestHandler [classpath [META-INF/resources/], classpath [resources/], classpath [static/], classpath [public/], ServletContext [/]]
2022-08-28 12:43:25.007 DEBUG 7476 --- [nio-8102-exec-2] o.s.w.s.r.ResourceHttpRequestHandler : Resource not found
2022-08-28 12:43:25.008 DEBUG 7476 --- [nio-8102-exec-4] o.s.w.s.r.ResourceHttpRequestHandler : Resource not found
2022-08-28 12:43:25.008 DEBUG 7476 --- [nio-8102-exec-4] o.s.web.servlet.DispatcherServlet : Completed 404 NOT_FOUND
2022-08-28 12:43:25.008 DEBUG 7476 --- [nio-8102-exec-2] o.s.web.servlet.DispatcherServlet : Completed 404 NOT_FOUND
2022-08-28 12:43:25.017 DEBUG 7476 --- [nio-8102-exec-2] o.s.web.servlet.DispatcherServlet : "ERROR" dispatch for GET "/error", parameters={}
2022-08-28 12:43:25.017 DEBUG 7476 --- [nio-8102-exec-4] o.s.web.servlet.DispatcherServlet : "ERROR" dispatch for GET "/error", parameters={}
2022-08-28 12:43:25.022 DEBUG 7476 --- [nio-8102-exec-2] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController#error(HttpServletRequest)
2022-08-28 12:43:25.022 DEBUG 7476 --- [nio-8102-exec-4] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController#error(HttpServletRequest)
2022-08-28 12:43:25.068 DEBUG 7476 --- [nio-8102-exec-2] o.s.w.s.m.m.a.HttpEntityMethodProcessor : Using 'application/json', given [*/*] and supported [application/json, application/* json, application/json, application/* json]
2022-08-28 12:43:25.068 DEBUG 7476 --- [nio-8102-exec-4] o.s.w.s.m.m.a.HttpEntityMethodProcessor : Using 'application/json;q=0.1', given [text/css, */*;q=0.1] and supported [application/json, application/* json, application/json, application/* json]
2022-08-28 12:43:25.070 DEBUG 7476 --- [nio-8102-exec-4] o.s.w.s.m.m.a.HttpEntityMethodProcessor : Writing [{timestamp=Sun Aug 28 12:43:25 BST 2022, status=404, error=Not Found, path=/static/css/main.073c9b0a (truncated)...]
2022-08-28 12:43:25.071 DEBUG 7476 --- [nio-8102-exec-2] o.s.w.s.m.m.a.HttpEntityMethodProcessor : Writing [{timestamp=Sun Aug 28 12:43:25 BST 2022, status=404, error=Not Found, path=/static/js/main.7097d855. (truncated)...]
2022-08-28 12:43:25.139 DEBUG 7476 --- [nio-8102-exec-4] o.s.web.servlet.DispatcherServlet : Exiting from "ERROR" dispatch, status 404
2022-08-28 12:43:25.139 DEBUG 7476 --- [nio-8102-exec-2] o.s.web.servlet.DispatcherServlet : Exiting from "ERROR" dispatch, status 404
2022-08-28 12:43:25.163 DEBUG 7476 --- [nio-8102-exec-5] o.s.web.servlet.DispatcherServlet : GET "/manifest.json", parameters={}
2022-08-28 12:43:25.164 DEBUG 7476 --- [nio-8102-exec-5] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped to ResourceHttpRequestHandler [classpath [META-INF/resources/], classpath [resources/], classpath [static/], classpath [public/], ServletContext [/]]
2022-08-28 12:43:25.167 DEBUG 7476 --- [nio-8102-exec-5] o.s.w.s.r.ResourceHttpRequestHandler : Resource not found
2022-08-28 12:43:25.168 DEBUG 7476 --- [nio-8102-exec-5] o.s.web.servlet.DispatcherServlet : Completed 404 NOT_FOUND
2022-08-28 12:43:25.171 DEBUG 7476 --- [nio-8102-exec-5] o.s.web.servlet.DispatcherServlet : "ERROR" dispatch for GET "/error", parameters={}
2022-08-28 12:43:25.172 DEBUG 7476 --- [nio-8102-exec-5] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController#error(HttpServletRequest)
2022-08-28 12:43:25.174 DEBUG 7476 --- [nio-8102-exec-5] o.s.w.s.m.m.a.HttpEntityMethodProcessor : Using 'application/json', given [*/*] and supported [application/json, application/* json, application/json, application/* json]
2022-08-28 12:43:25.175 DEBUG 7476 --- [nio-8102-exec-5] o.s.w.s.m.m.a.HttpEntityMethodProcessor : Writing [{timestamp=Sun Aug 28 12:43:25 BST 2022, status=404, error=Not Found, path=/manifest.json}]
2022-08-28 12:43:25.178 DEBUG 7476 --- [nio-8102-exec-5] o.s.web.servlet.DispatcherServlet : Exiting from "ERROR" dispatch, status 404
如您所見，它似乎根本找不到檔案。但是，它們肯定在那里：
這是我的 applications.properties 檔案到目前為止的樣子：
# Local H2 database config
#spring.datasource.url=jdbc:h2:file:/data/db/assetregister_db; # Linux only
# Production only!
#spring.datasource.url=jdbc:h2:file:~/data/db/assetregister_db;DB_CLOSE_ON_EXIT=FALSE;AUTO_RECONNECT=TRUE
# Test Only!
spring.datasource.url=jdbc:h2:mem:test_db
spring.jpa.hibernate.ddl-auto=update
#spring.jpa.show-sql=true
spring.jpa.defer-datasource-initialization=true
spring.datasource.driver-class-name=org.h2.Driver
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.h2.console=true
spring.h2.console.path=/console
spring.datasource.username=sa
spring.datasource.password=
spring.data.rest.base-uri=/api
spring.datasource.initialization-mode=always
spring.thymeleaf.prefix=classpath://./../../../target/classes/
# App config
server.port=8102
logging.level.org.springframework.web=debug
#logging.level.org.hibernate=debug
這是我的 pom.xml 檔案：
<?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>2.7.2</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.jre</groupId>
<artifactId>hireout</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>HireOut</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>18</java.version>
<kotlin.version>1.7.10</kotlin.version>
<frontend-src-dir>${project.basedir}/src/main/frontend</frontend-src-dir>
<node.version>v16.17.0</node.version>
<yarn.version>v1.22.0</yarn.version>
<frontend-maven-plugin.version>1.12.1</frontend-maven-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.3.22</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
<build>
<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
<plugins>
<plugin>
<groupId>com.github.eirslett</groupId>
<artifactId>frontend-maven-plugin</artifactId>
<version>${frontend-maven-plugin.version}</version>
<configuration>
<nodeVersion>${node.version}</nodeVersion>
<yarnVersion>${yarn.version}</yarnVersion>
<workingDirectory>${frontend-src-dir}</workingDirectory>
<installDirectory>${project.build.outputDirectory}</installDirectory>
</configuration>
<executions>
<execution>
<id>install-frontend-tools</id>
<goals>
<goal>install-node-and-yarn</goal>
</goals>
</execution>
<execution>
<id>yarn-install</id>
<goals>
<goal>yarn</goal>
</goals>
<configuration>
<arguments>install</arguments>
</configuration>
</execution>
<execution>
<id>build-frontend</id>
<goals>
<goal>yarn</goal>
</goals>
<phase>prepare-package</phase>
<configuration>
<arguments>build</arguments>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>position-react-build</id>
<goals>
<goal>copy-resources</goal>
</goals>
<phase>prepare-package</phase>
<configuration>
<outputDirectory>${project.build.outputDirectory}</outputDirectory>
<resources>
<resource>
<directory>${frontend-src-dir}/build</directory>
<filtering>false</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<configuration>
<args>
<arg>-Xjsr305=strict</arg>
</args>
<compilerPlugins>
<plugin>spring</plugin>
</compilerPlugins>
</configuration>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-allopen</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
我不確定是什么導致了這種情況發生，因為這一切看起來都是正確的……但是，我必須遺漏一些東西，否則就不會發生這種情況。
編輯：
這是我的Github 存盤庫，上面有整個專案。
uj5u.com熱心網友回復：
請參考此專案以獲得您的答案https://github.com/vinodhmahendra/simplilearn-phase3-2022/tree/master/14-todo-service-rest-jpa-h2 首先您的springboot專案因錯誤退出。讓它運行，如果它開始使用郵遞員相同的 url，你必須傳遞給你的 react 應用程式。如果你通過 env 變數獲取 url，請確保它以 REACT_APP 開頭。
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