Springboot helloworld错误汇总

1.setting.xml里改源
2.
pom.xml里加配置：

<dependency>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-install-plugin</artifactId>
			<version>2.4</version>
			<type>maven-plugin</type>
		</dependency>

		<dependency>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-deploy-plugin</artifactId>
			<version>2.8.2</version>
			<type>maven-plugin</type>
		</dependency>

3.***************************
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

The method's class, javax.persistence.Table, is available from the following locations:
jar:file:/F:/jdk/jre/lib/ext/servlet-api.jar!/javax/servlet/ServletContext.class
jar:file:/C:\Users\fan\.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar!/javax/servlet/ServletContext.class

4.run
删除其中一个，看哪个留下能跑就行

错误：
Cannot determine local hostname
解决方法：
，这个异常的意思就是在方法中有非法的参数，于是我觉得问题应该出在请求上。果然，我发现我写的ajax请求地址写的是 https，可是我并没有加密，是无法用https协议的，将https改为http即可。
别用https