小编Ben*_*cía的帖子

我正在使用 Spring Boot 和 MongoDB 构建后端，首先我正在创建用户存储库、服务和控制器，并收到此错误：

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APPLICATION FAILED TO START
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Description:

Field userRepository in com.package.package.controller.UserController required a bean named 'mongoTemplate' that could not be found.

The injection point has the following annotations:
    - @org.springframework.beans.factory.annotation.Autowired(required=true)


Action:

Consider defining a bean named 'mongoTemplate' in your configuration.

这是代码：

用户控制器：

package com.package.package.controller;

import com.package.package.entities.User;
import com.package.package.repositories.UserRepository;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.util.List;

@RestController
@RequestMapping("/users")
public class UserController {
    @Autowired
    private UserRepository userRepository;

    @GetMapping(value = "/")
    public List<User> getAllUsers() …

具有 n 个节点的无向​​图中最大边数是多少？

我见过一个问题，但它是关于有向图的