当我尝试从数据库获取时出现白标签错误

Question

我试图在springboot中制作一个小的rest api，但我总是收到这个错误404它连接到一个数据库，但当我试图从Post获得一个GET时，我也有404错误

这是我的结构项目结构

我的pom

<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>2.6.6</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>Clientix</groupId>
<artifactId>Ruben_DeNicolas</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Clientix</name>
<description>TFG</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

存储库

package repositories;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import models.ClientesModel;

@Repository
public interface ClientesRepository extends CrudRepository<ClientesModel, Integer>{

}

服务

package services;

import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import models.ClientesModel;
import repositories.ClientesRepository;

@Service
public class ClientesService {
@Autowired
ClientesRepository clientesRepository;

public ArrayList<ClientesModel>getClientes()
{
return(ArrayList<ClientesModel>)clientesRepository.findAll();
}


public ClientesModel insert(ClientesModel c)
{

return clientesRepository.save(c);

}



}

型号

package models;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "clientes")
public class ClientesModel {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(unique = true, nullable = false)
private Integer idCliente;
private String NombreCliente;
private String CIFNIF;
private String DireccionFacturacion;


public ClientesModel(String NombreCliente) {

this.NombreCliente = NombreCliente;

}

public ClientesModel(int idCliente, String NombreCliente, String CIFNIF, String DireccionFacturacion) {
this.idCliente = idCliente;
this.NombreCliente = NombreCliente;
this.CIFNIF = CIFNIF;
this.DireccionFacturacion = DireccionFacturacion;
}

public Integer getIdCliente() {
return idCliente;
}

public void setIdCliente(Integer idCliente) {
this.idCliente = idCliente;
}

public String getNombreCliente() {
return NombreCliente;
}

public void setNombreCliente(String nombreCliente) {
NombreCliente = nombreCliente;
}

public String getCIFNIF() {
return CIFNIF;
}

public void setCIFNIF(String cIFNIF) {
CIFNIF = cIFNIF;
}

public String getDireccionFacturacion() {
return DireccionFacturacion;
}

public void setDireccionFacturacion(String direccionFacturacion) {
DireccionFacturacion = direccionFacturacion;
}
}

控制器

package controllers;
import java.util.ArrayList;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import models.ClientesModel;
import services.ClientesService;
@RestController
@RequestMapping(value = "/clientes",produces="application/json")
public class ClientesController {
@Autowired
ClientesService clientesService; 



//OBTENER TODOS LOS CLIENTES
//@RequestMapping(value = "/",method = RequestMethod.GET)
@GetMapping()
public ArrayList<ClientesModel> getClientes()
{
return clientesService.getClientes();

}

//INSTERTAR CLIENTE
@PostMapping
public ClientesModel insert(@RequestBody ClientesModel c)
{
return this.clientesService.insert(c);
}


}
```

Clientix应用程序

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan()
public class ClientixApplication {
public static void main(String[] args) {
SpringApplication.run(ClientixApplication.class, args);
}
}

这是SpringBoot日志

.   ____          _            __ _ _
/\ / ___'_ __ _ _(_)_ __  __ _    
( ( )___ | '_ | '_| | '_ / _` |    
\/  ___)| |_)| | | | | || (_| |  ) ) ) )
'  |____| .__|_| |_|_| |___, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot ::                (v2.6.6)
2022-04-06 16:05:32.098  INFO 15728 --- [           main] C.Ruben_DeNicolas.ClientixApplication    : Starting ClientixApplication using Java 17.0.2 on DESKTOP-0EJNGE1 with PID 15728 (C:UsersRubénDesktopTestSpringBootRuben_DeNicolas (1)Ruben_DeNicolastargetclasses started by Rubén in C:UsersRubénDesktopTestSpringBootRuben_DeNicolas (1)Ruben_DeNicolas)
2022-04-06 16:05:32.101  INFO 15728 --- [           main] C.Ruben_DeNicolas.ClientixApplication    : No active profile set, falling back to 1 default profile: "default"
2022-04-06 16:05:32.373  INFO 15728 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-04-06 16:05:32.381  INFO 15728 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 2 ms. Found 0 JPA repository interfaces.
2022-04-06 16:05:32.627  INFO 15728 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2022-04-06 16:05:32.632  INFO 15728 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-04-06 16:05:32.632  INFO 15728 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.60]
2022-04-06 16:05:32.692  INFO 15728 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-04-06 16:05:32.692  INFO 15728 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 569 ms
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
2022-04-06 16:05:32.784  INFO 15728 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-04-06 16:05:32.810  INFO 15728 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.6.7.Final
2022-04-06 16:05:32.893  INFO 15728 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-04-06 16:05:32.945  INFO 15728 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2022-04-06 16:05:32.948  WARN 15728 --- [           main] com.zaxxer.hikari.util.DriverDataSource  : Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
2022-04-06 16:05:33.018  INFO 15728 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2022-04-06 16:05:33.034  INFO 15728 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL55Dialect
2022-04-06 16:05:33.132  INFO 15728 --- [           main] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-04-06 16:05:33.138  INFO 15728 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-04-06 16:05:33.156  WARN 15728 --- [           main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2022-04-06 16:05:33.313  INFO 15728 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2022-04-06 16:05:33.319  INFO 15728 --- [           main] C.Ruben_DeNicolas.ClientixApplication    : Started ClientixApplication in 1.398 seconds (JVM running for 1.705)
2022-04-06 16:05:36.286  INFO 15728 --- [nio-8080-exec-2] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2022-04-06 16:05:36.287  INFO 15728 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2022-04-06 16:05:36.287  INFO 15728 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet        : Completed initialization in 0 ms

Answer 1

您在浏览器上点击的url是什么，请确保不要使用https点击。。。代码看起来不错，试着点击

http://localhost:8080/clientes