1. 解释“generated keys not requested”的含义 “generated keys not requested”这个错误通常出现在使用数据库(如MySQL)进行插入(INSERT)操作时,尤其是当表有自增主键(AUTO_INCREMENT)时。这个错误意味着在执行插入操作时,没有请求数据库返回生成的键值(即自增主键的值)。 2. 说明为什么需要指定statement.return_...
java.sql.SQLException:Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate(), Statement.executeLargeUpdate()orConnection.prepareStatement().atcom.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)atcom.mysql.jdbc.SQLError.createSQLException(SQLE...
谁知道报错:Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.execu 上网查了之后才知道原来是5.1.5的包,替换成5.1.17之后,如下生成主键的代码都会报错: Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate...
更新mysql驱动5.1-47后出现错误:Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEY java.sql.SQLException: Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate(), Statement.executeLargeUpdate() or Connection.prepareStatemen...
id = generatedKeys.getLong(1); } }; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 问题 java.sql.SQLException: Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate(), Statement.executeLargeUpdate() or Connection.prepareState...
int id=resultSet.getInt(1); bean.setId(1); } } catch (SQLException e) { e.printStackTrace(); } } 错误详情 java.sql.SQLException: Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate(), Statement.executeLargeUpdate() or Connection.prep...
Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate() or Connection.prepareStatement(). 据说要修改成这样才不会报错: ps = getConnection().prepareStatement(sql,Statement.RETURN_GENERATED_KEYS); ... rs = ps.getGeneratedKeys(); ...
When the pureQuery inline-style methodData.update(String sql, Class returnClass, String[] columnNames, Object... parameters)is invoked, pureQuery does not update the properties of pureQuery beans. Instead, pureQuery returns an object that describes the contents of the requested database columns....
Caused by: java.sql.SQLException: Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate() or Connection.prepareStatement(). at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996) ...
If generated keys are requested on a table that has no IDENTITY column, the JDBC driver will return a null result set.As an example, create the following table in the SQL Server 2005 AdventureWorks sample database:Copy CREATE TABLE TestTable (Col1 int IDENTITY, Col2 varchar(50), Col3 ...