java.sql.SQLException: Illegal operation on empty result set 异常通常在尝试从空的 ResultSet 中提取数据时触发。以下是对该异常发生原因的分析、解决步骤以及一个示例代码修正: 1. 确认异常发生原因 该异常表明,你的代码试图在一个没有数据的结果集(ResultSet)上执行操作,如调用 getString()、getInt() 等方法...
1java.sql.SQLException: Illegal operation on empty result set.import java.sql.Connection;import java.sql.ResultSet;import java.sql.Statement;public class shujuku { public static void main(String args[]) { Connection conn; conn = Conn.getCon(); try{ Statement stmt = conn.createStatement(); Re...
报错信息:Java.sql.SQLException: Illegal operation on empty result set. 报错原因:查询的结果集 ResultSet 是空的,通常是数据库里没有对应的数据或者没有数据导致的,然后你又用了 rs.getString("")或者rs==null 或者 rs.equals("")来判断ResultSet 是否为空,所以就报这个错误了 解决办法:通过 rs.next() ...
是说存在一些运算错误，你检查一下有没有不符合运算规律的语句。比如x/0这是illegal的
Illegal operation on empty result set. 在空的结果集上进行(非法)操作 先贴错误日志,然后分析. org.springframework.dao.TransientDataAccessResourceException: PreparedStatementCallback; SQL [select * from system_user where sys_user_email = ?]; Illegal operation on empty result set.; nested exception is...
[code=Java][/code] 问题: javax.servlet.ServletException: java.sql.SQLException:Illegaloperationonemptyresultset. 源代码如下: %@pagelanguage=javaimport=java.util.* import=java.sql.Connectionimport=java.sql.DriverManager import=java.sql.Statementimport=java.sql.ResultSet pageEncoding=gb2312% %@pagelangu...
你好, 将sql语句 :select Mpassword from manager where Mid=... 在数据库运行下,若没问题, 打断点查看 this.jTextField1.getText()的值.将 rs.next();password = rs.getString("Mpassword");改为 while(rs.next){ password = rs.getString("Mpassword");} 避免没数据报异常.另外 rst ...
解决问题的方法：首先定位问题错在哪：你用System.out.println打印信息来调试，看问题出现在哪里 然后分析问题错的原因：检查代码是否有书写不规范或者参数名不一致等 最后：解决问题后，总结，以防以后还犯同样的错误
Illegal operation on empty result set but the record is saved in the MySQL-Database 5.1.39-community I found this defect after updating to version 3.2.1 --- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto ...
Signals that a method has been invoked at an illegal or inappropriate time. In other words, the Java environment or Java application is not in an appropriate state for the requested operation. Added in 1.1. Java documentation for java.lang.IllegalStateException....