package com.example.teacher_admin_system.controller; import com.example.teacher_admin_system.pojo.Evaluation; import com.example.teacher_admin_system.pojo.JsonResult; import com.example.teacher_admin_system.service.EvaluationService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RestController; import java.util.List; @RestController public class EvaluationController { @Autowired private EvaluationService evaluationService; @GetMapping("/evaluation") public JsonResult<List<Evaluation>> findAll(){ return new JsonResult<>(200,"获取所有老师的平均分和评价数量",evaluationService.findAll()); } @GetMapping("/evaluation/{id}") public Evaluation findAll(@PathVariable("id") int id){ return evaluationService.findById(id); } @GetMapping("/evaluation/{name}") public Evaluation findAll(@PathVariable String name){ return evaluationService.findByName(name); } }检查其中的错误
时间: 2024-02-22 13:58:07 浏览: 20
该控制器代码存在两个问题:
1. 重载方法名相同
控制器中的两个方法名都是 "findAll",这会导致方法重载时出现问题。应该将第二个方法名改为 "findById" 或者其他不同的名字。
2. 参数类型不匹配
第三个方法中的参数应该是一个 path variable,而不是一个 request body。应该将 "@RequestBody" 改为 "@PathVariable"。
修改后的代码如下:
```java
package com.example.teacher_admin_system.controller;
import com.example.teacher_admin_system.pojo.Evaluation;
import com.example.teacher_admin_system.pojo.JsonResult;
import com.example.teacher_admin_system.service.EvaluationService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
public class EvaluationController {
@Autowired
private EvaluationService evaluationService;
@GetMapping("/evaluation")
public JsonResult<List<Evaluation>> findAll(){
return new JsonResult<>(200,"获取所有老师的平均分和评价数量",evaluationService.findAll());
}
@GetMapping("/evaluation/{id}")
public Evaluation findById(@PathVariable("id") int id){
return evaluationService.findById(id);
}
@GetMapping("/evaluation/name/{name}")
public Evaluation findByName(@PathVariable String name){
return evaluationService.findByName(name);
}
}
```