未能获得 JDBC 连接；嵌套异常是 java.sql.SQLException: null

Question

从本地计算机中的数据库服务器获得以下响应，

{
    "timestamp": "2020-03-22T13:18:30.383+0000",
    "status": 500,
    "error": "Internal Server Error",
    "message": "Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: null,  message from server: \"Host '192.168.64.1' is not allowed to connect to this MariaDB server\"",
    "path": "/users"
}

我的Spring开机application.properties

# MySQL
spring.datasource.url=jdbc:mysql://192.168.64.2:3306/ctracker
spring.datasource.username=admin
spring.datasource.password=admin

logging.level.org.springframework=info
logging.level.org.springframework.jdbc=DEBUG

Phpmyadmin 控制台：

如何解决这个问题？

Spring 引导堆栈跟踪，

java.sql.SQLException: null,  message from server: "Host '192.168.64.1' is not allowed to connect to this MariaDB server"
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.19.jar:8.0.19]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.2.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:354) ~[HikariCP-3.4.2.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202) ~[HikariCP-3.4.2.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) [HikariCP-3.4.2.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:554) [HikariCP-3.4.2.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.4.2.jar:na]

Answer 1

我通过 adding phpmyadmin 中的新用户解决了这个问题，

Login to phpMyADmin.

Go to Privileges.

Click Add a new User.

Type the access info you want in the Login Information area (username, host, password)

Click on the radio button for Create database with same name and grant all privileges.

Click Go.

未能获得 JDBC 连接；嵌套异常是 java.sql.SQLException: null

Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: null

java

mysql

database-connection

spring-boot