邮递员输出“状态”：404，“错误”：“未找到”，“路径”：“/api/employees”

Question

使用 MySQL 的 Spring Boot REST 应用程序。

我正在尝试将记录添加到数据库中，并期望添加的记录和邮递员将其作为输出而不是输出：

“状态”：404，“错误”：“未找到”，“路径”：“/api/employees”

以下是课程：

package com.controller;      

import org.springframework.http.HttpStatus;       
import org.springframework.http.ResponseEntity;      
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 com.service.EmployeeService;       
import com.model.Employee;       


@RestController      
@RequestMapping("/api")     
public class EmployeeController {      

    private EmployeeService employeeservice;      

    public EmployeeController(EmployeeService employeeservice) {     
        super();     
        this.employeeservice = employeeservice;     
    }       

    //build create Employee REST API     
    @PostMapping("/employees")    
    public ResponseEntity<Employee> saveEmployee(@RequestBody Employee employee)    
    {     
        return new ResponseEntity<Employee>(employeeservice.saveEmployee(employee),     HttpStatus.CREATED);     
        
    }         
    
}
      
package com;      

import org.springframework.boot.SpringApplication;       
import org.springframework.boot.autoconfigure.SpringBootApplication;      

import org.springframework.data.jpa.repository.config.EnableJpaRepositories;      


@EnableJpaRepositories(     
        basePackages = {"com.model"})     
@SpringBootApplication(scanBasePackages = {"service.impl"})     


public class RestapimysqlApplication {     

    public static void main(String[] args) {      
        SpringApplication.run(RestapimysqlApplication.class, args);      
    }     

}     
       

Answer 1

看起来您没有扫描包含 REST 控制器（即 com.controller）的包，似乎您只是扫描 RestapimysqlApplication 类上的 service.impl 包。

您可能应该将 com.controller 添加到 Spring 正在扫描的包列表中：

@EnableJpaRepositories(basePackages = {"com.repository"})
@SpringBootApplication(scanBasePackages = {"service.impl", "com"})
@EntityScan({"com.model"})
public class RestapimysqlApplication {
    ...
}