在上述示例代码中,我们同样使用了try-catch块来捕获异常,并通过e.printStackTrace()方法将异常堆栈信息打印出来。 使用java.util.logging包 Java提供了java.util.logging包来进行日志记录,其中的Logger类可以用来打印错误信息。 importjava.util.logging.Level;importjava.util.logging.Logger;publicclassExample{privatestati...
cursor.execute("SELECT 'Hello, World!';") result = cursor.fetchone() print(result[0]) finally: connection.close() 3.2 Java 使用Java连接数据库并执行输出操作: import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; public class Main { ...
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/study","root","123456"); Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY); //获取某个表的字段信息 DatabaseMetaData metadata = conn.getMetaData(); ResultSet tableMessage = ...
ResultSet resultset=statement.executeQuery(sql);while(resultset.next()){intid = resultset.getInt(1); String title= resultset.getString(2); String content= resultset.getString(3); String url= resultset.getString(4);longcreated = resultset.getLong(5); list.add(newBlog(id,title,content,u...
区别 package com.cosmow.pageresultset.dao;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.List;} ...
, resultSet.next()); Assert.assertEquals(1, resultSet.getInt("Id")); assertFalse("There should not be two rows.", resultSet.next()); } } } } 代码示例来源:origin: apache/geode t.printStackTrace(); throw t; } catch (RuntimeException re) { 代码示例来源:origin: org.apache.logging....
} catch (SQLException | ClassNotFoundException e) { e.printStackTrace(); } finally { if (resultSet != null) { 来自:帮助中心 查看更多 → 通过HSBroker的用户名密码认证实现查询HetuEngine SQL任务 } catch (SQLException | ClassNotFoundException e) { e.printStackTrace(); } finally { if (result...
10import java.sql.ResultSet; 11import java.sql.Statement; 12import java.text.SimpleDateFormat; 13import java.util.Date; 14 15/** 16 * 印刷 17 */ 18public class Print implements Printable { 19 20 static ResultSet rs = null; 21 int positionCount = 0; 22 int employeeCount = 0; 23 in...
I want to make a printing loop for my resultSet. The resultSet will be reinitialized with a new query many times. Every time it is reinitialized with data, the result set will have an extra column. - What I want to do is have a printing loop that will accommodate for an extra column...
Set<FileObject> resultSet = importWorker.get();returnresultSet; }catch(InterruptedException | ExecutionException ex) { Exceptions.printStackTrace(ex); }returnnewHashSet<>(); } 开发者ID:chipKIT32,项目名称:chipKIT-importer,代码行数:11,代码来源:ChipKitImportWizardIterator.java ...