如何输入日期和时间格式
How to input Date and Time format
我不得不在两种字段中进行提交，这两种字段让用户在表单（视图）上输入并插入到数据库中，我已经尝试在网上搜索并找到一些东西我看到的是自动从电脑插入日期和时间的代码，但我想要的是插入用户输入的数据，我正在尝试这样做：
调用模型class:
package br.com.jdbc.victor.model;
import java.sql.Date;
import java.sql.Time;
/**
*
* @author Victor
*/
public class Call {
private Long callId;
private String priority;
private int priorityId;
private Long priorityDetailId;
private Date initialDate, finalDate;
private Time initialTime, finalTime;
public Call(String priority, int priorityId, Date initialDate, Time initialTime, Time finalTime) {
this.priority = priority;
this.priorityId = priorityId;
this.initialDate = initialDate;
this.initialTime = initialTime;
this.finalTime = finalTime;
}
public Call(String priority, Long priorityDetailId) {
this.priority = priority;
this.priorityDetailId = priorityDetailId;
}
public Call(int priorityId, Long callId){
this.priorityId = priorityId;
this.callId = callId;
}
public Call(){
this.priority = getPriority();
this.priorityId = getPriorityId();
this.initialDate = getInitialDate();
this.initialTime = getInitialTime();
this.finalTime = getFinalTime();
//this.initialDate = new Date();
//this.initialTime = new Time();
//this.finalTime = new Time();
}
/* Getters and Setters.... */
}
MySQLCallDAO DAO Class:
package br.com.jdbc.victor.dao.daoentities;
import br.com.jdbc.dao.DAOException;
import br.com.jdbc.victor.controller.CallDAO;
import br.com.jdbc.victor.model.Call;
import br.com.jdbc.victor.model.PriorityDetail;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.Date;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Time;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Victor
*/
public abstract class MySQLCallDAO implements CallDAO {
final String INSERT = "INSERT INTO calls (priority, priorityNum, initialDate, initialTime, finalTime) VALUES (?,?,?,?,?)";
final String GETALL = "SELECT * FROM calls";
final String GETID = "SELECT callId FROM calls ORDER BY callId DESC LIMIT 1";
final String ORDER = GETALL + " ORDER BY priorityNum, callId";
//SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
//SimpleDateFormat stf = new SimpleDateFormat("HH:mm");
private Connection con;
private PreparedStatement pstm;
private Statement stm = null;
private ResultSet rs = null;
public MySQLCallDAO(Connection con) {
this.con = con;
}
@Override
public void insert(Call o) throws DAOException {
try{
pstm = con.prepareStatement(INSERT);
pstm.setString(1, o.getPriority());
pstm.setInt(2, o.getPriorityId());
pstm.setDate(3, new java.sql.Date(o.getInitialDate().getTime()));
pstm.setTime(4, new Time(o.getInitialTime().getTime()));
pstm.setTime(5, new Time(o.getFinalTime().getTime()));
if(pstm.executeUpdate() == 0 ){
throw new DAOException("The update can't be saved");
}
} catch (SQLException ex) {
//throw new DAOException("SQL ERROR");
ex.printStackTrace();
} finally {
if(pstm != null){
try {
pstm.close();
} catch (SQLException ex) {
throw new DAOException("Error to close the connection", ex);
}
}
}
}
FormNewCall 视图 class:
private void btSubmitActionPerformed(java.awt.event.ActionEvent evt) {
try {
Call call = new Call();
MySQLDaoManager man = new MySQLDaoManager("root", "", "localhost", "attendances", 3306);
//java.util.Date date_util = new java.util.Date();
//java.sql.Date date_sql = new java.sql.Date(date_util.getDate());
//java.sql.Time time_sql = new java.sql.Time(date_util.getTime());
try {
call.setPriority(cbPriorityDetail.getSelectedItem().toString());
call.setPriorityNum(Integer.parseInt(tfPriorityDetailId.getText()));
tfInitialDate.commitEdit();
/* The line that gives error under */
call.setInitialDate((Date) tfInitialDate.getValue());
call.setInitialTime(Time.valueOf(tfInitialTime.getText()));
call.setFinalTime(Time.valueOf(tfFinalTime.getText()));
man.getCallDAO().insert(call);
if(tfCallId.getText().length() != 0){
call.setCallId(Long.parseLong(tfCallId.getText()));
man.getCallDAO().update(call);
}
if(tfInitialDate.getValue() != null && tfInitialTime.getValue() != null && tfFinalTime.getValue() != null){
JOptionPane.showMessageDialog(rootPane, "User Inserted!", "Insert Successful", JOptionPane.INFORMATION_MESSAGE);
btNewActionPerformed(evt);
} else {
JOptionPane.showMessageDialog(rootPane, "Please, fill the fields again", "Insert not sucessful", JOptionPane.INFORMATION_MESSAGE);
btNewActionPerformed(evt);
}
} catch (DAOException ex) {
JOptionPane.showMessageDialog(rootPane, "MySQL Error", "Error", JOptionPane.ERROR_MESSAGE);
} catch (ParseException ex) { Logger.getLogger(FormNewCall.class.getName()).log(Level.SEVERE, null, ex);
}
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, "Error to make connection", "Error", JOptionPane.ERROR_MESSAGE);
}
}
所以我已经尝试了所有方法，但堆栈跟踪异常：
run:
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: java.util.Date cannot be cast to java.sql.Date
at br.com.jdbc.victor.view.FormNewCall.btSubmitActionPerformed(FormNewCall.java:360)
at br.com.jdbc.victor.view.FormNewCall.access0(FormNewCall.java:30)
at br.com.jdbc.victor.view.FormNewCall.actionPerformed(FormNewCall.java:152)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access0(EventQueue.java:97)
at java.awt.EventQueue.run(EventQueue.java:709)
at java.awt.EventQueue.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue.run(EventQueue.java:731)
at java.awt.EventQueue.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:109)
at java.awt.WaitDispatchSupport.run(WaitDispatchSupport.java:184)
at java.awt.WaitDispatchSupport.run(WaitDispatchSupport.java:229)
at java.awt.WaitDispatchSupport.run(WaitDispatchSupport.java:227)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:227)
at java.awt.Dialog.show(Dialog.java:1084)
at java.awt.Component.show(Component.java:1671)
at java.awt.Component.setVisible(Component.java:1623)
at java.awt.Window.setVisible(Window.java:1014)
at java.awt.Dialog.setVisible(Dialog.java:1005)
at br.com.jdbc.victor.view.FormNewCall.lambda$main[=13=](FormNewCall.java:521)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access0(EventQueue.java:97)
at java.awt.EventQueue.run(EventQueue.java:709)
at java.awt.EventQueue.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
我想知道做代码以允许用户在数据库中输入日期和时间的任何提示吗？！非常感谢！！
无法确定代码有什么问题。
您不应该使用 date_util.getDate()。您可能想要的是 date_util.getTime()。
无论如何看看 this link 是否有帮助。
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException:
java.util.Date cannot be cast to java.sql.Date
at br.com.jdbc.victor.view.FormNewCall.btSubmitActionPerformed(FormNewCall.java:360)
这可能意味着在 FormNewCall class 的顶部有类似 import java.sql.Date 和 tfInitialDate.getValue() returns java.util.Date 是不同的 class 并且它们不兼容。
解决此问题的最简单方法是在此处添加适当的转换。
call.setInitialDate(new java.sql.Date(tfInitialDate.getValue().getTime()));
也许您甚至可以省略 java.sql. 包说明符，因为它已经在您的导入中了。
Update 它实际上变成了以下内容，因为 return 类型是 getValue()
上的对象
call.setInitialDate(new java.sql.Date(((java.util.Date)tfInitialDate.getValue()).getTime()));
我不得不在两种字段中进行提交，这两种字段让用户在表单（视图）上输入并插入到数据库中，我已经尝试在网上搜索并找到一些东西我看到的是自动从电脑插入日期和时间的代码，但我想要的是插入用户输入的数据，我正在尝试这样做：
调用模型class:
package br.com.jdbc.victor.model;
import java.sql.Date;
import java.sql.Time;
/**
*
* @author Victor
*/
public class Call {
private Long callId;
private String priority;
private int priorityId;
private Long priorityDetailId;
private Date initialDate, finalDate;
private Time initialTime, finalTime;
public Call(String priority, int priorityId, Date initialDate, Time initialTime, Time finalTime) {
this.priority = priority;
this.priorityId = priorityId;
this.initialDate = initialDate;
this.initialTime = initialTime;
this.finalTime = finalTime;
}
public Call(String priority, Long priorityDetailId) {
this.priority = priority;
this.priorityDetailId = priorityDetailId;
}
public Call(int priorityId, Long callId){
this.priorityId = priorityId;
this.callId = callId;
}
public Call(){
this.priority = getPriority();
this.priorityId = getPriorityId();
this.initialDate = getInitialDate();
this.initialTime = getInitialTime();
this.finalTime = getFinalTime();
//this.initialDate = new Date();
//this.initialTime = new Time();
//this.finalTime = new Time();
}
/* Getters and Setters.... */
}
MySQLCallDAO DAO Class:
package br.com.jdbc.victor.dao.daoentities;
import br.com.jdbc.dao.DAOException;
import br.com.jdbc.victor.controller.CallDAO;
import br.com.jdbc.victor.model.Call;
import br.com.jdbc.victor.model.PriorityDetail;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.Date;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Time;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Victor
*/
public abstract class MySQLCallDAO implements CallDAO {
final String INSERT = "INSERT INTO calls (priority, priorityNum, initialDate, initialTime, finalTime) VALUES (?,?,?,?,?)";
final String GETALL = "SELECT * FROM calls";
final String GETID = "SELECT callId FROM calls ORDER BY callId DESC LIMIT 1";
final String ORDER = GETALL + " ORDER BY priorityNum, callId";
//SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
//SimpleDateFormat stf = new SimpleDateFormat("HH:mm");
private Connection con;
private PreparedStatement pstm;
private Statement stm = null;
private ResultSet rs = null;
public MySQLCallDAO(Connection con) {
this.con = con;
}
@Override
public void insert(Call o) throws DAOException {
try{
pstm = con.prepareStatement(INSERT);
pstm.setString(1, o.getPriority());
pstm.setInt(2, o.getPriorityId());
pstm.setDate(3, new java.sql.Date(o.getInitialDate().getTime()));
pstm.setTime(4, new Time(o.getInitialTime().getTime()));
pstm.setTime(5, new Time(o.getFinalTime().getTime()));
if(pstm.executeUpdate() == 0 ){
throw new DAOException("The update can't be saved");
}
} catch (SQLException ex) {
//throw new DAOException("SQL ERROR");
ex.printStackTrace();
} finally {
if(pstm != null){
try {
pstm.close();
} catch (SQLException ex) {
throw new DAOException("Error to close the connection", ex);
}
}
}
}
FormNewCall 视图 class:
private void btSubmitActionPerformed(java.awt.event.ActionEvent evt) {
try {
Call call = new Call();
MySQLDaoManager man = new MySQLDaoManager("root", "", "localhost", "attendances", 3306);
//java.util.Date date_util = new java.util.Date();
//java.sql.Date date_sql = new java.sql.Date(date_util.getDate());
//java.sql.Time time_sql = new java.sql.Time(date_util.getTime());
try {
call.setPriority(cbPriorityDetail.getSelectedItem().toString());
call.setPriorityNum(Integer.parseInt(tfPriorityDetailId.getText()));
tfInitialDate.commitEdit();
/* The line that gives error under */
call.setInitialDate((Date) tfInitialDate.getValue());
call.setInitialTime(Time.valueOf(tfInitialTime.getText()));
call.setFinalTime(Time.valueOf(tfFinalTime.getText()));
man.getCallDAO().insert(call);
if(tfCallId.getText().length() != 0){
call.setCallId(Long.parseLong(tfCallId.getText()));
man.getCallDAO().update(call);
}
if(tfInitialDate.getValue() != null && tfInitialTime.getValue() != null && tfFinalTime.getValue() != null){
JOptionPane.showMessageDialog(rootPane, "User Inserted!", "Insert Successful", JOptionPane.INFORMATION_MESSAGE);
btNewActionPerformed(evt);
} else {
JOptionPane.showMessageDialog(rootPane, "Please, fill the fields again", "Insert not sucessful", JOptionPane.INFORMATION_MESSAGE);
btNewActionPerformed(evt);
}
} catch (DAOException ex) {
JOptionPane.showMessageDialog(rootPane, "MySQL Error", "Error", JOptionPane.ERROR_MESSAGE);
} catch (ParseException ex) { Logger.getLogger(FormNewCall.class.getName()).log(Level.SEVERE, null, ex);
}
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, "Error to make connection", "Error", JOptionPane.ERROR_MESSAGE);
}
}
所以我已经尝试了所有方法，但堆栈跟踪异常：
run:
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: java.util.Date cannot be cast to java.sql.Date
at br.com.jdbc.victor.view.FormNewCall.btSubmitActionPerformed(FormNewCall.java:360)
at br.com.jdbc.victor.view.FormNewCall.access0(FormNewCall.java:30)
at br.com.jdbc.victor.view.FormNewCall.actionPerformed(FormNewCall.java:152)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access0(EventQueue.java:97)
at java.awt.EventQueue.run(EventQueue.java:709)
at java.awt.EventQueue.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue.run(EventQueue.java:731)
at java.awt.EventQueue.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:109)
at java.awt.WaitDispatchSupport.run(WaitDispatchSupport.java:184)
at java.awt.WaitDispatchSupport.run(WaitDispatchSupport.java:229)
at java.awt.WaitDispatchSupport.run(WaitDispatchSupport.java:227)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:227)
at java.awt.Dialog.show(Dialog.java:1084)
at java.awt.Component.show(Component.java:1671)
at java.awt.Component.setVisible(Component.java:1623)
at java.awt.Window.setVisible(Window.java:1014)
at java.awt.Dialog.setVisible(Dialog.java:1005)
at br.com.jdbc.victor.view.FormNewCall.lambda$main[=13=](FormNewCall.java:521)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access0(EventQueue.java:97)
at java.awt.EventQueue.run(EventQueue.java:709)
at java.awt.EventQueue.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
我想知道做代码以允许用户在数据库中输入日期和时间的任何提示吗？！非常感谢！！
无法确定代码有什么问题。
您不应该使用 date_util.getDate()。您可能想要的是 date_util.getTime()。
无论如何看看 this link 是否有帮助。
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException:
java.util.Date cannot be cast to java.sql.Date
at br.com.jdbc.victor.view.FormNewCall.btSubmitActionPerformed(FormNewCall.java:360)
这可能意味着在 FormNewCall class 的顶部有类似 import java.sql.Date 和 tfInitialDate.getValue() returns java.util.Date 是不同的 class 并且它们不兼容。
解决此问题的最简单方法是在此处添加适当的转换。
call.setInitialDate(new java.sql.Date(tfInitialDate.getValue().getTime()));
也许您甚至可以省略 java.sql. 包说明符，因为它已经在您的导入中了。
Update 它实际上变成了以下内容，因为 return 类型是 getValue()
call.setInitialDate(new java.sql.Date(((java.util.Date)tfInitialDate.getValue()).getTime()));