Question

我在使用HikariCP +进行直接SQL查询执行时遇到了麻烦。我在创建表时遇到错误。如果我复制SQL查询并在MYSQL COMMAND中执行，则可以，但是不能从Java中获取。

错误： java.sql.SQLSyntaxErrorException：您的SQL语法有错误；查看与您的MySQL服务器版本相对应的手册，以了解在附近使用正确的语法

版本：

HikariCP -编译组：“ com.zaxxer”，名称：“ HikariCP”，版本： '3.3.1'
MYSQL驱动程序-编译组：“ mysql”，名称：“ mysql-connector-java”，版本：“ 8.0.15”
MYSQL SERVER -docker run --name mysql -p 3306：3306 -e ALLOW_EMPTY_PASSWORD =是-e MYSQL_DATABASE = tp --rm bitnami / mysql

我不知道所提到的查询出了什么问题。我已经尽力了。

   root
     CID-{} 2019-07-25 11:30:24,235 [DEBUG] - [Driver class com.mysql.cj.jdbc.Driver found in Thread context class loader sun.misc.Launcher$AppClassLoader@6d06d69c] - HikariConfig:900
     CID-{} 2019-07-25 11:30:24,518 [DEBUG] - [HikariPool-1 - configuration:] - HikariConfig:1020
     CID-{} 2019-07-25 11:30:24,536 [DEBUG] - [allowPoolSuspension.............false] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,536 [DEBUG] - [autoCommit......................true] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,542 [DEBUG] - [catalog.........................none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,543 [DEBUG] - [connectionInitSql...............none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,543 [DEBUG] - [connectionTestQuery.............none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,544 [DEBUG] - [connectionTimeout...............30000] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,544 [DEBUG] - [dataSource......................none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,545 [DEBUG] - [dataSourceClassName.............none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,546 [DEBUG] - [dataSourceJNDI..................none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,548 [DEBUG] - [dataSourceProperties............{password=<masked>, prepStmtCacheSqlLimit=2048, cachePrepStmts=true, prepStmtCacheSize=250}] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,549 [DEBUG] - [driverClassName................."com.mysql.cj.jdbc.Driver"] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,550 [DEBUG] - [healthCheckProperties...........{}] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,550 [DEBUG] - [healthCheckRegistry.............none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,551 [DEBUG] - [idleTimeout.....................600000] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,554 [DEBUG] - [initializationFailTimeout.......1] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,554 [DEBUG] - [isolateInternalQueries..........false] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,556 [DEBUG] - [jdbcUrl.........................jdbc:mysql://localhost:3306] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,556 [DEBUG] - [leakDetectionThreshold..........0] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,557 [DEBUG] - [maxLifetime.....................1800000] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,557 [DEBUG] - [maximumPoolSize.................10] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,557 [DEBUG] - [metricRegistry..................none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,558 [DEBUG] - [metricsTrackerFactory...........none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,558 [DEBUG] - [minimumIdle.....................10] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,559 [DEBUG] - [password........................<masked>] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,559 [DEBUG] - [poolName........................"HikariPool-1"] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,560 [DEBUG] - [readOnly........................false] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,561 [DEBUG] - [registerMbeans..................false] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,561 [DEBUG] - [scheduledExecutor...............none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,562 [DEBUG] - [schema..........................none] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,562 [DEBUG] - [threadFactory...................internal] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,563 [DEBUG] - [transactionIsolation............default] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,563 [DEBUG] - [username........................"root"] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,564 [DEBUG] - [validationTimeout...............5000] - HikariConfig:1052
     CID-{} 2019-07-25 11:30:24,567 [INFO ] - [HikariPool-1 - Starting...] - HikariDataSource:80
     CID-{} 2019-07-25 11:30:27,299 [DEBUG] - [HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@42d8062c] - HikariPool:566
     CID-{} 2019-07-25 11:30:27,303 [INFO ] - [HikariPool-1 - Start completed.] - HikariDataSource:82
     CID-{} 2019-07-25 11:30:27,306 [DEBUG] - [ SQl QUERY : [CREATE SCHEMA IF NOT EXISTS ${schemaName} ;]] - Sql2:76
     CID-{} 2019-07-25 11:30:27,306 [DEBUG] - [ SQl QUERY : [CREATE SCHEMA IF NOT EXISTS ${schemaName} ;]] - Sql2:76
     CID-{} 2019-07-25 11:30:27,337 [DEBUG] - [ SQl QUERY : [CREATE SCHEMA IF NOT EXISTS REFS ;]] - Sql2:79
     CID-{} 2019-07-25 11:30:27,337 [DEBUG] - [ SQl QUERY : [CREATE SCHEMA IF NOT EXISTS REFS ;]] - Sql2:79
     CID-{} 2019-07-25 11:30:27,407 [DEBUG] - [HikariPool-1 - Pool stats (total=1, active=1, idle=0, waiting=0)] - HikariPool:417
     CID-{} 2019-07-25 11:30:27,439 [DEBUG] - [ SQl QUERY : [USE ${schemaName}; CREATE TABLE IF NOT EXISTS ${tableName} (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MODIFIED_DATE timestamp DEFAULT CURRENT_TIMESTAMP);]] - Sql2:76
     CID-{} 2019-07-25 11:30:27,439 [DEBUG] - [ SQl QUERY : [USE ${schemaName}; CREATE TABLE IF NOT EXISTS ${tableName} (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MODIFIED_DATE timestamp DEFAULT CURRENT_TIMESTAMP);]] - Sql2:76
     CID-{} 2019-07-25 11:30:27,441 [DEBUG] - [ SQl QUERY : [USE REFS; CREATE TABLE IF NOT EXISTS KUMARREFS (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MODIFIED_DATE timestamp DEFAULT CURRENT_TIMESTAMP);]] - Sql2:79
     CID-{} 2019-07-25 11:30:27,441 [DEBUG] - [ SQl QUERY : [USE REFS; CREATE TABLE IF NOT EXISTS KUMARREFS (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MODIFIED_DATE timestamp DEFAULT CURRENT_TIMESTAMP);]] - Sql2:79
     CID-{} 2019-07-25 11:30:27,508 [INFO ] - [HikariPool-1 - Shutdown initiated...] - HikariDataSource:350
     CID-{} 2019-07-25 11:30:27,509 [DEBUG] - [HikariPool-1 - Before shutdown stats (total=1, active=0, idle=1, waiting=0)] - HikariPool:417
     CID-{} 2019-07-25 11:30:27,550 [DEBUG] - [HikariPool-1 - Closing connection com.mysql.cj.jdbc.ConnectionImpl@42d8062c: (connection evicted)] - PoolBase:129
     CID-{} 2019-07-25 11:30:27,571 [DEBUG] - [HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@3ceaa46] - HikariPool:730
     CID-{} 2019-07-25 11:30:27,580 [DEBUG] - [HikariPool-1 - Closing connection com.mysql.cj.jdbc.ConnectionImpl@3ceaa46: (connection evicted)] - PoolBase:129
     CID-{} 2019-07-25 11:30:27,581 [DEBUG] - [HikariPool-1 - After shutdown stats (total=0, active=0, idle=0, waiting=0)] - HikariPool:417
     CID-{} 2019-07-25 11:30:27,582 [INFO ] - [HikariPool-1 - Shutdown completed.] - HikariDataSource:352
     java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CREATE TABLE IF NOT EXISTS KUMARREFS (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MO' at line 1
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
        at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
        at com.mysql.cj.jdbc.StatementImpl.executeInternal(StatementImpl.java:782)
        at com.mysql.cj.jdbc.StatementImpl.execute(StatementImpl.java:666)
        at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95)
        at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java)
        at com.test.ref.sql2.Sql2.executeStatement(Sql2.java:86)

Answer 1

一个故障排除技巧是将查询打印到控制台。这将显示您的查询是否确实与直接在MYSQL COMMAND中使用的SQL查询相同。

我最近在MSQL上做了很多工作，而该问题排查技巧已修复了许多我的类似错误。

Answer 2

我已解决问题。问题是我们不能在jdbc执行中使用两个查询。删除USE REFS后；一切都很好。

错误：

USE REFS; CREATE TABLE IF NOT EXISTS KUMARREFS (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MODIFIED_DATE timestamp DEFAULT CURRENT_TIMESTAMP);

工作：

CREATE TABLE IF NOT EXISTS ${tableName} (ID VARCHAR(50) NULL, CONTENT TEXT NULL, MODIFIED_DATE timestamp DEFAULT CURRENT_TIMESTAMP);

java.sql.SQLSyntaxErrorException：您的SQL语法有错误； MySQL的

2 个答案: