<p>我是 Spring-boot 的初學者，當我嘗試執行 Spring-boot 應用程式時，當我嘗試執行 Spring-Boot 應用程式時，我遇到了這個問題。 </p> <pre class="brush:php;toolbar:false;">Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type com. JPA. test. UserException: No qualifying bean of type com. JPA. test. UserExcept at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:340) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:331) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1148) at com. JPA. test. Test Application. main(TestApplication.java:17)</pre> <p>我希望資料能夠正確保存在資料庫中。</p> <p>目錄資料夾排列：目錄資料夾排列</p> <p>錯誤頁面：錯誤頁面1 錯誤頁面2</p> <p>屬性介面：屬性申請頁</p> <p>主類別代碼：</p> <pre class="brush:php;toolbar:false;">package com.jpa.test; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; import org.springframework.context.ApplicationContext; @SpringBootApplication(exclude={DataSourceAutoConfiguration.class}) public class TestApplication { public static void main(String[] args) { ApplicationContext context = SpringApplication.run(TestApplication.class, args); UserRepository ur = context.getBean(UserRepository.class); User user = new User(); user.setName("XYZ"); user.setStatus("Active"); user.setCity("OOPS"); User save = ur. save(user); System.out.println(save); } }</pre> <p>實體類別（使用者）：</p> <pre class="brush:php;toolbar:false;">package com.jpa.test; import jakarta.persistence.Entity; import jakarta.persistence.GeneratedValue; import jakarta.persistence.GenerationType; import jakarta.persistence.Id; @Entity public class User { @Id @GeneratedValue(strategy = GenerationType.AUTO) private int id; private String name; private String city; private String status; public User() { super(); // TODO Auto-generated constructor stub } public User(int id, String name, String city, String status) { super(); this.id = id; this.name = name; this.city = city; this.status = status; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getCity() { return city; } public void setCity(String city) { this.city = city; } public String getStatus() { return status; } public void setStatus(String status) { this.status = status; } @Override public String toString() { return "User [id=" id ", name=" name ", city=" city ", status=" status "]"; } }</前> <p>Dao（使用者儲存庫）package com.jpa.test; 導入 org.springframework.data.repository.CrudRepository; 導入 org.springframework.stereotype.Repository; @儲存庫 公共介面 UserRepository 擴充 CrudRepository { }</pre></p>

@Configuration
@EnableAutoConfiguration
@ComponentScan
@EntityScan("com.jpa.test")
@EnableJpaRepositories("com.jpa.test")