運行spring boot項目Failed to configure a DataSource

1.環境

win10
jdk13
Eclipse IDE for Enterprise Java Developers Version: 2019-12 (4.14.0)
apache-maven-3.6.3

2.創建springboot項目

3.配置/src/main/resources/application.properties文件

server.port=9001
#默認爲server.port=8080

端口自定

4.創建controller

package com.example.demo.controller;


import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
	@RequestMapping("/hello1")
	    public String sayHello() {
	        return "Hello, SpringBoot!";
	    }

}

3.運行報錯

Description:

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class


Action:

Consider the following:
	If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
	If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

4.問題：

經過調試發現pom.xml文件加載：spring-boot-starter-jdbc，mysql-connector-java，但是application.properties文件沒有相應的配置

5.解決方案：

1去掉spring-boot-starter-jdbc，mysql-connector-java

2.配置application.properties文件

6.重新運行

訪問成功