Java 學習記錄140 — 員工管理系統專案練習-Creating Delete Employee REST API

接著繼續寫刪除特定員工的API

EmployeeController.java

//     delete employees by id - version 1
@DeleteMapping("/employees/{id}")
public ResponseEntity<Map<String, Boolean>> deleteEmployee(@PathVariable Long id) {
    Employee employee = employeeRepository.findById(id)
            .orElseThrow(() -> new ResourceNotFoundException("Employee ID not found:" + id));
    employeeRepository.delete(employee);
    Map<String, Boolean> response = new HashMap<>();
    response.put("delete", Boolean.TRUE);
    return ResponseEntity.ok(response);
}
    // delete employees by id - version 2
@DeleteMapping("/employees/{id}")
public ResponseEntity<Long> deleteEmployee(@PathVariable Long id) {
    Employee employee = employeeRepository.findById(id)
            .orElseThrow(() -> new ResourceNotFoundException("Employee ID not found:" + id));
    employeeRepository.delete(employee);
    return new ResponseEntity<>(id, HttpStatus.NO_CONTENT);
}

還是兩個版本，一樣的功能

一樣是先利用 getEmployeeById() 裡面的功能，先確認有沒有對應ID的員工，有的話就獲得 employee，沒有的話就報錯

找到之後就 直接刪除跟回傳狀態

版本一是老師寫的，回傳一個MAP，裡面附上文字輸出，Status: 200 ok

{
    "delete": true
}

版本二是網路上查的，沒有回傳內容，但 Status: 204 No Content 比較是刪除常用的狀態碼

我這裡傾向用第二個版本

到此增刪改查都寫完了

本專案完成

參考項目來源