Spring boot 1.5.9 爬坑总结

 

1.参考教程: http://412887952-qq-com.iteye.com/category/356333?page=8

 

8. 使用JPA保存数据【从零开始学Spring Boot】

注意问题:

 

:问题1:需要安装一个mysql

 问题2:mysql5.7以上版本,必须配置ssl

spring.datasource.url = jdbc:mysql://localhost:3306/test?characterEncoding=utf8&useSSL=yes

 

问题3:mysql5.7以上,naming-strategy配置也改变了

spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

 

 问题4:application.properties配置项,记住删掉末尾的空格(巨坑)

 问题5:  spring.datasource.url = jdbc:mysql://localhost:3306/test?characterEncoding=utf8&useSSL=yes

              test是数据库名,你要自己在mysql中创建一个数据库

              解决方法:

                                1. ctrl+R 打开cmd命令行

                                2. mysql -u root -p  进入mysql输入密码

                                3. create database test;

问题6:access denied(数据库不允许远程访问)

         解决方法: 1.登录数据库, mysql -u root -p     

                            2.输入你想授权的账号名(替换myuser)和密码(替换mypassword):     

 

GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;   

                            3.输入命令: FLUSH PRIVILEGES; 然后就能访问了

                      

application.properties配置示例:

 

spring.datasource.url = jdbc:mysql://localhost:3306/test?characterEncoding=utf8&useSSL=yes
spring.datasource.username = admin
spring.datasource.password = admin
spring.datasource.driverClassName = com.mysql.jdbc.Driver


# Specify the DBMS  
spring.jpa.database = MYSQL
# Show or not log for each sql query  
spring.jpa.show-sql = true
# Hibernate ddl auto (create, create-drop, update)  
spring.jpa.hibernate.ddl-auto = update
# Naming strategy  
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
# stripped before adding them to the entity manager)  
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

 

 

 

 

 

POM.XML配置示例:

 



	4.0.0

	com.example
	demo
	0.0.1-SNAPSHOT
	jar

	demo
	Demo project for Spring Boot

	
		org.springframework.boot
		spring-boot-starter-parent
		1.5.9.RELEASE
		 
	

	
		UTF-8
		UTF-8
		1.8
	

	
		
			org.springframework.boot
			spring-boot-starter-data-jpa
		
		
			org.springframework.boot
			spring-boot-starter-web
		

		
			org.springframework.boot
			spring-boot-devtools
			runtime
		
		
			org.springframework.boot
			spring-boot-starter-test
			test
		
		
           
           org.springframework.boot  
           spring-boot-starter-data-jpa  
           
		
       mysql
       mysql-connector-java

	

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	



 

 

28. SpringBoot启动时的Banner设置【从零开始学Spring Boot】

注意问题

可以在代码中配置关闭banner,也可以在properties中配置

spring.main.banner-mode=off

 

29. Spring boot 文件上传(多文件上传)【从零开始学Spring Boot】

注意问题

文件上传到指定路径,一定要是文件,如果是目录就会出现拒绝访问。

 String path="F:/test/";
File savedir = new File(path);  
if (!savedir.exists()) {  
	       savedir.mkdirs();  
}  
File myFile=new File(path+"1.txt");
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(myFile));

 

 

33. Spring Boot 监控和管理生产环境【从零开始学Spring Boot】

 

 配置actuator需要security权限

可以再properties文件中设置关闭

management.security.enabled=false

 

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