如何解决@GetMapping 在 Spring Boot 中工作正常,但在 Postman 中返回错误 404
我使用 JPA 从 postgres 获取数据。我在数据库中创建了一个表 - smartbank 并相应地创建了模型类。现在,在 sts 中一切正常并且没有错误并且 tomcat 服务器启动,但是当我去邮递员并使用 get 方法时,它显示状态:404。 请在下面找到控制器的代码:
package com.scb.smartbank.model.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.scb.smartbank.model.Model;
import com.scb.smartbank.service.Service;
@RestController
@CrossOrigin
public class Controller {
@Autowired
Service service;
@GetMapping("/getdata")
List<Model> getDetails(){
return service.findAll();
}
}
模型类代码:
package com.scb.smartbank.model;
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 = "details")
public class Model {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "creditcard_num")
Integer creditcard_num;
@Column(name = "cardname")
String cardname;
@Column(name = "username")
String username;
@Column(name = "points")
Integer points;
@Column(name = "rewards")
Integer rewards;
public Integer getCreditcard_num() {
return creditcard_num;
}
public void setCreditcard_num(Integer creditcard_num) {
this.creditcard_num = creditcard_num;
}
public String getCardname() {
return cardname;
}
public void setCardname(String cardname) {
this.cardname = cardname;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public Integer getPoints() {
return points;
}
public void setPoints(Integer points) {
this.points = points;
}
public Integer getRewards() {
return rewards;
}
public void setRewards(Integer rewards) {
this.rewards = rewards;
}
}
服务接口代码:
package com.scb.smartbank.service;
import java.util.List;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import com.scb.smartbank.model.Model;
@Repository
public interface Service extends JpaRepository<Model,Integer>{
@Override
List<Model> findAll();
}
应用程序属性:
server.port = 8086
spring.datasource.url=jdbc:postgresql://localhost:5432/smartbank
spring.datasource.username=postgres
spring.datasource.password=postgres
spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true
spring.jpa.show-sql=true
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQL9Dialect
spring.jpa.hibernate.ddl-auto = update
spring.main.allow-bean-definition-overriding=true
现在,当我使用 http://localhost:8086/getdata 在 Postman 中运行它时,出现以下错误:
{
"timestamp": "2020-12-19T07:07:13.639+0000","status": 404,"error": "Not Found","message": "No message available","path": "/getdata"
}
请提前帮助并感谢您。
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