java编程算法 此方法是校验cellId入参是否合法,然后去掉不合法的cellId,通过UT发现报错,原来是for循环的过程中删除元素,会报ConcurrentModificationException. 你呀不牛 2021/05/28 4630 【C++】C++11新特性——可变参数模版、lambda、包装器 c++lambda变量对象函数 ...
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@Async("threadPoolExecutor") public void synGetDuckDBSequenceToMapByElementId(String app, String elementId, String batchNumber) throws SQLException { Statement stmtDuck = null; ResultSet rs2 = null; try { log.info("=== 异步 开始查询当前会计引擎 已经创建的 所有 索引 ==="); // 开始锁 Lis...
";try(PreparedStatementstatement=connection.prepareStatement(deleteRentalBillDataQuery)){statement.setInt(1,gameAccount.getGameAccount_id());statement.executeUpdate();}// 最后删除游戏账户数据StringdeleteGameAccountQuery="DELETE FROM game_account WHERE GameAccount_id = ?";try(PreparedStatementstatement=...
今天发现了这个错误 java.sql.SQLException: The SQL statement must not be null or empty. 并且看了些网页:综合说下这个错误。 一般都是我这种原因: 在executeQuery之前,我System.out.printf 你的sql,原来是空串。 只要这样if 下就轻松解决了
Valid Java programming language code must honor the Catch or Specify Requirement. This means that code that might throw certain exceptions must be enclosed by either of the following: A try statement that catches the exception. The try must provide a handler for the exception, as described in ...
log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=[%p][%d{yy-MM-dd}][%c]%m%n #日志输出级别 .mybatis=DEBUG log4j.logger.java.sql=DEBUG log4j.logger.java.sql.Statement=DEBUG log4j.logger.java.sql.ResultSet=DEBUG log4j.logger.java.sql....
This method has four parameters: the loan amount, the interest rate, the future value and the number of periods. The first three are double-precision floating point numbers, and the fourth is an integer. The parameters are used in the method body and at runtime will take on the values of...
Added in 1.4. Java documentation forjava.nio.channels.IllegalSelectorException. Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...