java - 我无法在我的 SQL 数据库中插入日期-6ren

java - 我无法在我的 SQL 数据库中插入日期

转载作者：行者123 更新时间：2023-11-29 00:29:43

import java.sql.*;


public class student extends javax.swing.JFrame {

    /**
     * Creates new form student
     */
    public student() {
        initComponents();

    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        buttonGroup1 = new javax.swing.ButtonGroup();
        buttonGroup2 = new javax.swing.ButtonGroup();
        jButton1 = new javax.swing.JButton();
        jCheckBoxMenuItem1 = new javax.swing.JCheckBoxMenuItem();
        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jLabel4 = new javax.swing.JLabel();
        jRadioButton1 = new javax.swing.JRadioButton();
        jRadioButton2 = new javax.swing.JRadioButton();
        jComboBox1 = new javax.swing.JComboBox();
        jLabel5 = new javax.swing.JLabel();
        jComboBox2 = new javax.swing.JComboBox();
        jComboBox3 = new javax.swing.JComboBox();
        jButton2 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();

        buttonGroup1.add(jRadioButton1);
        buttonGroup1.add(jRadioButton2);

        jButton1.setText("jButton1");

        jCheckBoxMenuItem1.setSelected(true);
        jCheckBoxMenuItem1.setText("jCheckBoxMenuItem1");

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setText("Name :");

        jTextField1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField1ActionPerformed(evt);
            }
        });

        jLabel2.setText("Roll :");

        jTextField2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField2ActionPerformed(evt);
            }
        });

        jLabel3.setText("Address");

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

        jLabel4.setText("Gender");

        jRadioButton1.setText("Male");
        jRadioButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton1ActionPerformed(evt);
            }
        });

        jRadioButton2.setText("Female");
        jRadioButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton2ActionPerformed(evt);
            }
        });

        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31" }));

        jLabel5.setText("DOB:");

        jComboBox2.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12" }));

        jComboBox3.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001" }));

        jButton2.setText("SUBMIT");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton3.setText("CANCEL");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jLabel4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jLabel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jRadioButton2)
                            .addComponent(jRadioButton1)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(18, 18, 18)
                                .addComponent(jComboBox2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(27, 27, 27)
                                .addComponent(jComboBox3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jButton2)
                                .addGap(44, 44, 44)
                                .addComponent(jButton3)))
                        .addContainerGap(161, Short.MAX_VALUE))
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                            .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                                .addComponent(jLabel3)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jScrollPane1))
                            .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                                .addComponent(jLabel2)
                                .addGap(18, 18, 18)
                                .addComponent(jTextField2))
                            .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                                .addComponent(jLabel1)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 192, javax.swing.GroupLayout.PREFERRED_SIZE)))
                        .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(44, 44, 44)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(47, 47, 47)
                        .addComponent(jLabel3))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(18, 18, 18)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 90, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(jRadioButton1))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jRadioButton2)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel5)
                    .addComponent(jComboBox2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jComboBox3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 42, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton2)
                    .addComponent(jButton3))
                .addGap(25, 25, 25))
        );

        pack();
    }// </editor-fold>                        

    private void jRadioButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                              
        // TODO add your handling code here:
    }                                             

    private void jRadioButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                              
        // TODO add your handling code here:
    }                                             

    private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jTextField2ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
        System.out.println("Hello");
        String name=jTextField1.getText();
        String roll=jTextField2.getText();
        String address=jTextArea1.getText();
        String gender="";
        if(jRadioButton1.isSelected()){
        gender=jRadioButton1.getText();
        }
        if(jRadioButton2.isSelected()){
        gender=jRadioButton2.getText();
        }
        String day=(String)jComboBox1.getSelectedItem();
        String month=(String)jComboBox2.getSelectedItem();
        String year=(String)jComboBox3.getSelectedItem();
        String dob=year+"-"+month+"-"+day;
        //java.sql.Date dt=(java.sql.Date)dob;
        //java.sql.Date  sqlDate = new java.sql.Date(new java.util.Date().getTime());
        //System.out.println(dt);
        try{
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                //System.out.println("Loaded driver");
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/demo","root","");
        //System.out.println("Connected to DB");
        Statement st= conn.createStatement();
        String query="insert into student values('"+name+"',"+roll+",'"+address+"','"+gender+"',"+dob+")";
                System.out.println(query);
                st.executeUpdate(query);}
        catch(Exception e){
       //System.out.println("database");
        e.printStackTrace();
        }
    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(student.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(student.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(student.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(student.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new student().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify                     
    private javax.swing.ButtonGroup buttonGroup1;
    private javax.swing.ButtonGroup buttonGroup2;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JCheckBoxMenuItem jCheckBoxMenuItem1;
    private javax.swing.JComboBox jComboBox1;
    private javax.swing.JComboBox jComboBox2;
    private javax.swing.JComboBox jComboBox3;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JRadioButton jRadioButton1;
    private javax.swing.JRadioButton jRadioButton2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    // End of variables declaration                   
}

如何将组合框中输入的日期插入mysql数据库

最佳答案

试试这个

使用普通语句

    try{
            Class.forName("com.mysql.jdbc.Driver");
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/demo", "root", "");
            Statement st= conn.createStatement();
// suppose name,roll,gender,dob are field in which u need the datas to be inserted
            String query="insert into student (name,roll,gender,dob) values('"+name+"','"+roll+"','"+address+"','"+gender+"','"+dob+"')";
            System.out.println(query);
            st.executeUpdate(query);
            st.close();
            conn.close();
          }
            catch(Exception e){
           //System.out.println("database");
            e.printStackTrace();
            }

使用 PreparedStatement(防止 SQL 注入(inject))

      try{
                Class.forName("com.mysql.jdbc.Driver");
                Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/demo", "root", "");
// suppose name,roll,gender,dob are field in which u need the datas to be inserted
                PreparedStatement st = conn.prepareStatement("insert into student (name,roll,gender,dob) values(?,?,?,?)");
                st.setString(1, name);
                st.setString(2, roll);
                st.setString(3, gender);
                st.setDate(4, dob);
                st.executeUpdate();
                st.close();
                conn.close();
              }
                catch(Exception e){
               //System.out.println("database");
                e.printStackTrace();
                }

另外不要忘记添加 mysql.ja r

关于java - 我无法在我的 SQL 数据库中插入日期，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17184839/

文章推荐： Android onNewIntent() 通知未正确运行

文章推荐： ios - 在 TableView 中检测平移手势向下滑动

文章推荐： android - Android 内存不足错误

文章推荐： mysql - 在mysql中创建存储过程以在每个批处理中生成卷号

java - 无法 Autowiring
我通过 spring ioc 编写了一些 Rest 应用程序。但我无法解决这个问题。这是我的异常(exception): org.springframework.beans.factory.BeanC
java - 无法@Autowire配置
我对 TestNG、Spring 框架等完全陌生，我正在尝试使用注释 @Value通过 @Configuration 访问配置文件注释。我在这里想要实现的目标是让控制台从配置文件中写出“hi”，通过
无法 malloc 然后转到程序顶部
为此工作了几个小时。我完全被难住了。这是 CS113 的实验室。如果用户在程序(二进制计算器)结束时选择继续，我们需要使用 goto 语句来到达程序的顶部。但是，我们还需要释放所有分配的内存。
无法 avformat_open_input .mp3
我正在尝试使用 ffmpeg 库构建一个小的 C 程序。但是我什至无法使用 avformat_open_input() 打开音频文件设置检查错误代码的函数后，我得到以下输出: Error code:
java - 无法 Autowiring
使用 Spring Initializer 创建一个简单的 Spring boot。我只在可用选项下选择 DevTools。创建项目后，无需对其进行任何更改，即可正常运行程序。现在，当我尝试在项目
macos - 无法 brew 链接qt
所以我只是在 Mac OS X 中通过 brew 安装了 qt。但是它无法链接它。当我尝试运行 brew link qt 或 brew link --overwrite qt 我得到以下信息: ton
git - 无法 pull 或提交
我在提交和 pull 时遇到了问题:在提交的 IDE 中，我看到: warning not all local changes may be shown due to an error: unable
gcc - 无法 grep 特定格式的文本
我跑 man gcc | grep "-L" 我明白了 Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more inf
curl - 无法 CURL 远程文件
我有一段代码，旨在接收任何 URL 并将其从网络上撕下来。到目前为止，它运行良好，直到有人给了它这个 URL: http://www.aspensurgical.com/static/images/a
WireGuard - 无法 ping 服务器或解析域
在过去的 5 个小时里，我一直在尝试在我的服务器上设置 WireGuard，但在完成所有设置后，我无法 ping IP 或解析域。下面是服务器配置 [Interface] Address = 10.
GitLab:无法 fork 我自己的项目
我正在尝试在 GitLab 中 fork 我的一个私有(private)项目，但是当我按下 fork 按钮时，我会收到以下信息: No available namespaces to fork the
javascript - 无法 GET/定义路由
我这里遇到了一些问题。我是 node.js 和 Rest API 的新手，但我正在尝试自学。我制作了 REST API，使用 MongoDB 与我的数据库进行通信，我使用 Postman 来测试我的路
javascript - 无法 AppendChild - 尝试使一个方法在不同的类中附加另一个方法
下面的代码在控制台中给出以下消息: Uncaught DOMException: Failed to execute 'appendChild' on 'Node': The new child el
javascript - 数组被视为对象，无法 NgFor
我正在尝试调用一个新端点来显示数据，我意识到在上一组有效的数据中，它在数据周围用一对额外的“[]”括号进行控制台，我认为这就是问题是，而新端点不会以我使用数据的方式产生它! 这是 NgFor 失败的原
git - 无法 checkout 到无效路径
我正在尝试将我的 Symfony2 应用程序部署到我的 Azure Web 应用程序，但遇到了一些麻烦。推送到远程时，我在终端中收到以下消息 remote: Updating branch 'mas
docker - Minikube具有IP-无法 curl
Minikube已启动并正在运行，没有任何错误，但是我无法 curl IP。我在这里遵循:https://docs.traefik.io/user-guide/kubernetes/，似乎没有提到关闭
linux - 无法 docker 组成任何项目
每当我尝试docker组成任何项目时，都会出现以下错误。我尝试过有和没有sudo 我在这台机器上只有这个问题。我可以在Mac和Amazon WorkSpace上运行相同的容器。 (myslabs)
python - 无法 pip 安装手电筒
我正在尝试 pip install stanza 并收到此消息: ERROR: No matching distribution found for torch>=1.3.0 (from stanza
kubernetes 无法 ping 通其他服务
DNS 解析看起来不错，但我无法 ping 我的服务。可能是什么原因？来自集群中的另一个 Pod: $ ping backend PING backend.default.svc.cluster.l
spring - 无法 Autowiring 字段
我正在使用Hibernate 4 + Spring MVC 4当我开始 Apache Tomcat Server 8我收到此错误: Error creating bean with name 'wel

行者123

个人简介

我是一名优秀的程序员,十分优秀！

作者热门文章

滴滴打车优惠券免费领取

全站热门文章

首页

博学

6Ren·AI

商城

java - 我无法在我的 SQL 数据库中插入日期