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Alexkt2018 avatar Alexkt2018 commented on May 20, 2024 1

src文件夹底下,修改一下username和password

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Alexkt2018 avatar Alexkt2018 commented on May 20, 2024

是否是数据库版本和连接数据库的jar包的版本不同的原因?
看图里好像是连接被denied了,或者是权限设置?

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lxyok avatar lxyok commented on May 20, 2024

老哥 我现在也是遇到这个问题,在用idea clone 这个仓库后,cmd启动MySQL 5.5 net start mysql 然后 运行这个项目,用的 apache-tomcat-9.0.26。登录页面都出来了。然后登录后就 变成你这样了,你是怎么解决的

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Alexkt2018 avatar Alexkt2018 commented on May 20, 2024

你看看你的依赖里面驱动包的版本 mysql-connector-java-8.0.16.jar,如果跟mysql版本不一样就会出现这样的问题,pom文件里自己写一下依赖就行

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lxyok avatar lxyok commented on May 20, 2024

你看看你的依赖里面驱动包的版本mysql-connector-java-8.0.16.jar,如果跟mysql版本不一样就会出现这样的问题,pom文件里自己写一下依赖就行

老哥能说详细一点不。
我的环境
JDK 1.8_201
本地MySQL 5.5.62 账号 root 密码是 空
IntelliJ IDEA 2020.2
apache-tomcat-9.0.26

我用IDEA clone 这个项目的,然后运行后就这样
image0.png

然后登录 zxk zxk123
image1.png

看起来好像数据库有问题

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Alexkt2018 avatar Alexkt2018 commented on May 20, 2024

连接数据库时出的问题,
首先,确保你建立了数据库并修改了db.properties文件
然后,你在external library里看有没有mysql-connector-java-5.1.40-bin.jar这个文件,看看它的版本

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lxyok avatar lxyok commented on May 20, 2024

连接数据库时出的问题,
首先,确保您建立了数据库并修改了db.properties文件
然后,您在外部库里看有没有mysql-connector-java-5.1.40-bin.jar这个文件,看看它的版本

修改这个db.properties文件 ,是在什么地方o

我用 dormitory.sql 建立了数据库

woLDI0.png

有这个mysql-connector-java-5.1.40-bin.jar
woLGPf.png

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lxyok avatar lxyok commented on May 20, 2024

src文件夹底下,修改一下username和password

谢谢老哥。成功了。非常感谢。之前建立的数据库名字不正确。重新建了dormitory

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wuming182 avatar wuming182 commented on May 20, 2024

还有大佬看见这个问题没,我的问题和上面的一样,但是我的数据库名字没错啊,但是还是报错,有没有大佬,伸一伸援手。
跪求@@@

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