Recently tried to build SSM frame + postgre database,
Feeling configuration is correct, separate test postgre database connection is normal, but with a framework to perform connection problems, have talent which framework can help have a look?

The following is the content of the problems in the
The ERROR] [the 19:15:02 2020-05-05, 956] [com. Alibaba. Druid. Pool. DruidDataSource] testOnBorrow is true, validationQuery not set
[ERROR] [the 19:15:03 2020-05-05, 245] [com. Alibaba. Druid. Pool. DruidDataSource] dataSource init ERROR
Java. SQL. SQLException: ${. JDBC driver}
At com. Alibaba. Druid. Util. JdbcUtils. CreateDriver (JdbcUtils. Java: 500)
At com. Alibaba. Druid. Pool. DruidDataSource. Init (DruidDataSource. Java: 382)
At com. Alibaba. Druid. Pool. DruidDataSource. GetConnection (DruidDataSource. Java: 622)
At com. Alibaba. Druid. Pool. DruidDataSource. GetConnection (DruidDataSource. Java: 618)
At com. Alibaba. Druid. Pool. DruidDataSource. GetConnection (DruidDataSource. Java: 79)
At org) springframework). The JDBC datasource. DataSourceUtils. DoGetConnection (DataSourceUtils. Java: 111)
At org) springframework). The JDBC datasource. DataSourceUtils. GetConnection (DataSourceUtils. Java: 77)
The at org. Mybatis. Spring. Transaction. SpringManagedTransaction. OpenConnection (SpringManagedTransaction. Java: 82)
The at org. Mybatis. Spring. Transaction. SpringManagedTransaction. GetConnection (SpringManagedTransaction. Java: 68)
The at org. Apache. Ibatis. Executor. BaseExecutor. GetConnection (BaseExecutor. Java: 336)
The at org. Apache. Ibatis. Executor. SimpleExecutor. PrepareStatement (SimpleExecutor. Java: 86)
The at org. Apache. Ibatis. Executor. SimpleExecutor. DoQuery (SimpleExecutor. Java: 62)
The at org. Apache. Ibatis. Executor. BaseExecutor. QueryFromDatabase (BaseExecutor. Java: 324)
The at org. Apache. Ibatis. Executor. BaseExecutor. Query (BaseExecutor. Java: 156)
The at org. Apache. Ibatis. Executor. CachingExecutor. Query (CachingExecutor. Java: 109)
The at org. Apache. Ibatis. Executor. CachingExecutor. Query (CachingExecutor. Java: 83)
The at org. Apache. Ibatis. Session. Defaults. DefaultSqlSession. SelectList (DefaultSqlSession. Java: 147)
The at org. Apache. Ibatis. Session. Defaults. DefaultSqlSession. SelectList (DefaultSqlSession. Java: 140)
The at Java. The base/JDK. Internal. Reflect. NativeMethodAccessorImpl. Invoke0 (Native Method)

I send up my Settings screenshot,


My Build_Path Settings


Individual test results is normal,


. According to the prompt if I mapper XML Settings has a problem, but I checked again and again a few times also didn't find any questions, please advice,

CodePudding user response:

Again this morning and found is applicationContext - mapper. Line about placeholder that caused by an error in XML, I write JDBC directly in applicationContext - mapper. XML file is normal connection, don't know why, have free time I have to study well,

CodePudding user response:

reference 1st floor EXTchang response:

study again this morning and found to be applicationContext - mapper. Line about placeholder that caused by an error in XML, I write JDBC directly in applicationContext - mapper. XML file is normal connection, don't know why, have free time I have to study well,

Don't write die, can go to release under the directory server directory (release) the value of the files in the database configuration and what you expected values are the same,

CodePudding user response:

Need or want to know why placehodler specified is invalid, which jars less quotes,