Java 所需的字符串参数“foodId”不存在

我试图通过foodId获取一个food对象，但得到400个错误代码，表示所需的字符串参数“foodId”不存在

这是我的控制器类：

    package com.quickmeal.controller;
    import java.util.List;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;


    @RestController
    @RequestMapping("/api/foods")
    public class FoodController {

    @Autowired
    private FoodService foodService;


    @RequestMapping(method = RequestMethod.POST)
    public Food createFood(@RequestBody Food food) {
        return foodService.createFood(food);
    }


    @RequestMapping(method = RequestMethod.GET)
    public List<Food> listFood() {
        return foodService.listFood();
    }

    @RequestMapping(value = "/{foodId}",method = RequestMethod.GET)
    public Object getFoodById(@RequestParam String foodId) {
        System.out.println("Testing..."+foodId);
        return foodService.getFoodById(foodId);

    }


    }

这是我的网址

本地主机：8080/api/foods/5b08f8cee731e32c60e95aa8

5b08f8cee731e32c60e95aa8是mongoDB提供的id

请帮忙。谢谢。

此路径中的foodId/{foodId}是@PathVariable而不是@RequestParam

正确的处理方法应为：

@RequestMapping(value = "/{foodId}",method = RequestMethod.GET)
public Object getFoodById(@PathVariable String foodId) {

package com.quickmeal.model;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document
public class Food {
    @Id
    private String foodId;

    private String foodName;
    private double foodPrice;
    public String getFoodId() {
        return foodId;
    }
    public void setFoodId(String foodId) {
        this.foodId = foodId;
    }
    public String getFoodName() {
        return foodName;
    }
    public void setFoodName(String foodName) {
        this.foodName = foodName;
    }
    public double getFoodPrice() {
        return foodPrice;
    }
    public void setFoodPrice(double foodPrice) {
        this.foodPrice = foodPrice;
    }


}

@RequestMapping(value = "/{foodId}",method = RequestMethod.GET)
public Object getFoodById(@PathVariable String foodId) {