java 获取redis hashmap JAVA 获取db序列

读取给的db文件，英雄联盟角色，有英雄绰号、名字、性变、价格和id。

 需要在根目录下创建db文件夹，里面放入db后缀数据库。同时也要导入sqlite的一个jar包。

 如何导入jar包

创建libs文件夹放入后，解压包：file-project-structure-dependencies 点击右上角+号，选jars即可。

如果有报错红线，鼠标放上去：more actions-surround with try/catach

 核心：MyFrame

package S2.ui;

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.event.MouseListener;
import java.sql.*;
import S2.utill.TableListener;

public class MyFrame<GetHeroInfo> extends JFrame {

    private JScrollPane scrollPane = new JScrollPane();//带滚动条的面板
    private JTable jTable = new MyTable();
    private DefaultTableModel model = new DefaultTableModel(); //定义几行几列，行列名是什么

    private TableListener listener = new TableListener(this);
    public MyFrame() throws SQLException {
        this.setSize(400,400);
        this.setResizable(false);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        this.setLayout(null);
        this.setLocation(400,300);
        //先初始化表格
        initTable();
        //初始数据
        loadData();

        //

        jTable.addMouseListener(listener);
    }

    private void loadData() throws SQLException {
        //查询数据库  获取结果集  再插入表格中
        int currPage = 1;
        int lim = 30;//每页10条
        int off = (currPage - 1) * lim;  //off 要跟随分页变化
        Connection conn = DriverManager.getConnection("jdbc:sqlite:db/work10-12.db");




            //6.取出数据
            String sql2 = "select * from t_hero limit " + lim + " offset " + off;

            Statement sta = conn.createStatement();
            ResultSet rs = sta.executeQuery(sql2);

            while (rs.next()) {
                //如果有下一个就取出来
                int hid = rs.getInt("h_id");  //列名
                String hNike = rs.getString("h_nike");
                String hName = rs.getString("h_name");
                String hxing=rs.getString("h_sex");
                String hPrice=rs.getString("h_price");
                String[] data = {hid + "", hNike, hName,hxing,hPrice};



            model.addRow(data);
        }



    }

    private void initTable() {
        String [] header = {"id","nike","name","sex","price"};
        model.setColumnIdentifiers(header); //设置表头

        jTable.setModel(model); //加入表格

        scrollPane.setViewportView(jTable);

        scrollPane.setBounds(20,20,350,250);
        this.add(scrollPane);


    }

    private void getRowData(){
        int row = jTable.getSelectedRow(); //获取点击的是第几行
        model.getValueAt(row,0).toString();//获取第row 行的第一列表（下标是0）


    }



    public JScrollPane getScrollPane() {
        return scrollPane;
    }

    public void setScrollPane(JScrollPane scrollPane) {
        this.scrollPane = scrollPane;
    }

    public JTable getjTable() {
        return jTable;
    }

    public void setjTable(JTable jTable) {
        this.jTable = jTable;
    }

    public DefaultTableModel getModel() {
        return model;
    }

    public void setModel(DefaultTableModel model) {
        this.model = model;
    }
}

MyTable：设置让表不可编辑（一般不用动）

package S2.ui;

import javax.swing.*;

public class MyTable extends JTable {

    public MyTable(){

    }

    @Override
    public boolean isCellEditable(int row, int column) {

        return false;  //不可编辑
    }
}

TableListener用于监听鼠标双击

package S2.utill;

import S2.ui.MyFrame;
import S2.ui.MyFrame;

import javax.swing.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

public class TableListener implements MouseListener {

    private MyFrame f;

    public TableListener(MyFrame f) {
        this.f = f;
    }

    @Override
    public void mouseClicked(MouseEvent e) {
        //双击表格
        if (e.getClickCount() == 2){
            //获取Model对象，才能获取里面的内容
            int row = f.getjTable().getSelectedRow();  //获取点击了表格的第几行
            String id = f.getModel().getValueAt(row,0).toString();
            String nike = (String) f.getModel().getValueAt(row,1);
            String name = (String) f.getModel().getValueAt(row,2);

            JOptionPane.showMessageDialog(f,"id:"+id+"\nnike:"+nike+"\nname:"+name);

        }


    }

    @Override
    public void mousePressed(MouseEvent e) {

    }

    @Override
    public void mouseReleased(MouseEvent e) {

    }

    @Override
    public void mouseEntered(MouseEvent e) {

    }

    @Override
    public void mouseExited(MouseEvent e) {

    }
}

 最后TestMyFrame执行

package S2.test;

import S2.ui.MyFrame;

import java.sql.SQLException;

public class TestMyFrame {

    public static void main(String[] args) throws SQLException {


        new MyFrame().setVisible(true);
    }

}