spring引导导致http状态404–未找到

o2rvlv0m  于 2021-07-07  发布在  Java
关注(0)|答案(1)|浏览(579)

我的spring启动应用程序运行，但当我在postman中访问它时，它只为每个函数调用返回“httpstatus404–notfound”。我试过很多办法，都没有用。
文件夹结构
（图片）
FlightPlanner应用程序.java

  1. package com.bogen.FlightPlanner;
  2. import org.springframework.boot.SpringApplication;
  3. import org.springframework.boot.autoconfigure.SpringBootApplication;
  5. @SpringBootApplication
  6. public class FlightPlannerApplication {
  7.     public static void main(String[] args) {
  8.         SpringApplication.run(FlightPlannerApplication.class, args);
  9.     }
  10. }

airportapi.java文件

  1. package com.bogen.FlightPlanner.api;
  3. import java.util.List;
  4. import org.springframework.beans.factory.annotation.Autowired;
  5. import org.springframework.http.HttpStatus;
  6. import org.springframework.http.ResponseEntity;
  7. import org.springframework.web.bind.annotation.GetMapping;
  8. import org.springframework.web.bind.annotation.RequestMapping;
  9. import org.springframework.web.bind.annotation.RestController;
  10. import org.springframework.web.server.ResponseStatusException;
  11. import com.bogen.FlightPlanner.model.Airport;
  12. import com.bogen.FlightPlanner.service.AirportService;
  14. @RestController
  15. @RequestMapping("AirportAPI")
  16. public class AirportAPI {
  18.     @Autowired
  19.     private AirportService airportService;
  21.     @GetMapping("/getAirports")
  22.     public ResponseEntity<?> getAirports() {
  23.         try {
  24.             List<Airport> airports = airportService.getAirports();
  25.             return new ResponseEntity<List<Airport>>(airports, HttpStatus.OK);
  26.         }
  27.         catch (Exception e) {
  28.             throw new ResponseStatusException(HttpStatus.BAD_REQUEST, e.getMessage());
  29.         }
  30.     }
  31. }

airportserviceimpl.java文件

  1. import java.util.List;
  2. import javax.transaction.Transactional;
  3. import org.springframework.beans.factory.annotation.Autowired;
  4. import org.springframework.stereotype.Service;
  5. import com.bogen.FlightPlanner.dao.AirportDAO;
  6. import com.bogen.FlightPlanner.model.Airport;
  8. @Service(value="airportService")
  9. @Transactional
  10. public class AirportServiceImpl implements AirportService {
  12.     @Autowired
  13.     AirportDAO airportDAO;
  15.     @Override
  16.     public List<Airport> getAirports() {
  17.         List<Airport> airports = null;
  19.         try {
  20.             airports = airportDAO.getAirports();
  21.         } catch (Exception e) {
  22.             // TODO Auto-generated catch block
  23.             e.printStackTrace();
  24.         }
  26.         return airports;
  27.     }
  28. }

而airportdaoimpl.java文件正如您所期望的那样，用 @Repository 并包含一个用 @PersistenceContext .
以下是控制台日志：

  1. 2020-12-02 12:48:43.236  INFO 4452 --- [           main] c.b.F.FlightPlannerApplication           : Starting FlightPlannerApplication using Java 15.0.1 on DESKTOP-38S2QIU with PID 4452 (C:\Users\bogen\Downloads\FlightPlanner\target\classes started by bogen in C:\Users\bogen\Downloads\FlightPlanner)
  2. 2020-12-02 12:48:43.238  INFO 4452 --- [           main] c.b.F.FlightPlannerApplication           : No active profile set, falling back to default profiles: default
  3. 2020-12-02 12:48:43.552  INFO 4452 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFERRED mode.
  4. 2020-12-02 12:48:43.562  INFO 4452 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 5 ms. Found 0 JPA repository interfaces.
  5. 2020-12-02 12:48:43.894  INFO 4452 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
  6. 2020-12-02 12:48:43.901  INFO 4452 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
  7. 2020-12-02 12:48:43.901  INFO 4452 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.39]
  8. 2020-12-02 12:48:43.973  INFO 4452 --- [           main] o.a.c.c.C.[.[localhost].[/Project]       : Initializing Spring embedded WebApplicationContext
  9. 2020-12-02 12:48:43.973  INFO 4452 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 708 ms
  10. 2020-12-02 12:48:44.095  INFO 4452 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
  11. 2020-12-02 12:48:44.123  INFO 4452 --- [         task-1] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
  12. 2020-12-02 12:48:44.162  INFO 4452 --- [         task-1] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.4.23.Final
  13. 2020-12-02 12:48:44.263  INFO 4452 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path '/Project'
  14. 2020-12-02 12:48:44.265  INFO 4452 --- [           main] DeferredRepositoryInitializationListener : Triggering deferred initialization of Spring Data repositories…
  15. 2020-12-02 12:48:44.265  INFO 4452 --- [           main] DeferredRepositoryInitializationListener : Spring Data repositories initialized!
  16. 2020-12-02 12:48:44.268  INFO 4452 --- [         task-1] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
  17. 2020-12-02 12:48:44.272  INFO 4452 --- [           main] c.b.F.FlightPlannerApplication           : Started FlightPlannerApplication in 1.272 seconds (JVM running for 1.516)
  18. 2020-12-02 12:48:44.348  INFO 4452 --- [         task-1] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
  19. 2020-12-02 12:48:44.591  INFO 4452 --- [         task-1] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
  20. 2020-12-02 12:48:44.610  INFO 4452 --- [         task-1] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL8Dialect
  21. 2020-12-02 12:48:45.032  INFO 4452 --- [         task-1] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
  22. 2020-12-02 12:48:45.038  INFO 4452 --- [         task-1] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'

最后，pom.xml文件：

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <parent>
  6.         <groupId>org.springframework.boot</groupId>
  7.         <artifactId>spring-boot-starter-parent</artifactId>
  8.         <version>2.4.0</version>
  9.         <relativePath/> <!-- lookup parent from repository -->
  10.     </parent>
  11.     <groupId>com.bogen</groupId>
  12.     <artifactId>FlightPlanner</artifactId>
  13.     <version>0.0.1-SNAPSHOT</version>
  14.     <name>FlightPlanner</name>
  15.     <description>Flight Planner project for Spring Boot</description>
  17.     <properties>
  18.         <java.version>15</java.version>
  19.     </properties>
  21.     <dependencies>
  22.         <dependency>
  23.             <groupId>org.springframework.boot</groupId>
  24.             <artifactId>spring-boot-starter-data-jpa</artifactId>
  25.         </dependency>
  27.         <dependency>
  28.             <groupId>mysql</groupId>
  29.             <artifactId>mysql-connector-java</artifactId>
  30.             <scope>runtime</scope>
  31.         </dependency>
  32.         <dependency>
  33.             <groupId>org.springframework.boot</groupId>
  34.             <artifactId>spring-boot-starter-test</artifactId>
  35.             <scope>test</scope>
  36.         </dependency>
  38.         <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
  39.         <dependency>
  40.             <groupId>org.springframework</groupId>
  41.             <artifactId>spring-web</artifactId>
  42.             <version>5.3.1</version>
  43.         </dependency>
  45.         <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-tomcat -->
  46.         <dependency>
  47.             <groupId>org.springframework.boot</groupId>
  48.             <artifactId>spring-boot-starter-tomcat</artifactId>
  49.             <version>2.4.0</version>
  50.         </dependency>
  52.     </dependencies>
  54.     <build>
  55.         <plugins>
  56.             <plugin>
  57.                 <groupId>org.springframework.boot</groupId>
  58.                 <artifactId>spring-boot-maven-plugin</artifactId>
  59.             </plugin>
  60.         </plugins>
  61.     </build>
  63. </project>

如预期的那样，应用程序无限期运行。来自 Postman 的get请求转到url:http://localhost：8080/project/airportapi/getairports。
有什么想法吗？

Javaspringspring-bootspring-mvchttp-status-code-404

1条答案

按热度按时间
fivyi3re

fivyi3re1#

添加以下依赖项

  1. <dependency>
  2.     <groupId>org.springframework.boot</groupId>
  3.     <artifactId>spring-boot-starter-web</artifactId>
  4. </dependency>
  5. ``` `spring-web` 这还不够。您需要带有自动配置的spring引导 Package 器，这样springmvc就可以为您引导了。
  6. 也可以删除 `spring-web` 依赖，因为它会被 `spring-boot-start-web` .
赞(0）分享  回复(0）举报  2021-07-07
我来回答

相关问题

    查看更多

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新问答

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com