spring boot 学习

1、在start.spring.io 构建下载了项目,在idea中打开直接启动报错(前段时间下载的启动正常,那么这两次下载的内容肯定有不同的地方):

     报错:

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-10-13 09:22:16.372 ERROR 3148 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

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).

Disconnected from the target VM, address: '127.0.0.1:61473', transport: 'socket'

Process finished with exit code 1

    分析:

 

   1、 下面的报错是由maven的jar包引起的。新项目的maven位置配置是上一个项目的

看Maven projects:

spring boot 学习_第1张图片

这两个是灰色的,jar包不对。

2、查看了之前的spring boot核心模块包发现版本变了。

解决:

     1、不要改变maven地址,直接把之前的pom.xml配置复制过来就OK。

     2、试了第二种方式:换了maven库地址,然后重新下载了还是不对。

我的是:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

你可能感兴趣的:(springboot)