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一、AccessToMySql
最近做了一个Access数据库导入MySql的小工具,期间遇到诸多问题,这里小计一下。
表名为cur_rec,共有5个字段
比较奇葩的是这个表居然是四个字段的联合主键,要实现的功能为从Access数据库里面导一个时间段的数据到Mysql,例如:起始日期:2015-02-27 截止日期:2015-03-02
一开始是准备用ODBC,后来觉得还要配置数据源,比较麻烦,还有路径问题(后续会制作成.exe)
于是下载了一个Access_JDBC30.jar的驱动(官网的似乎是需要付费的,下载的驱动包有一个问题就是一次最大能够读取1000条数据)
于是乎想到了分页查询,使用的时候发现Mysql的分页语句不能使用,纠结了好久.....
但是在分页查询的时候查找网上资料,一般都是只有一个主键的,最后请教了一下我们的牛人,
什么都不说了,直接上代码:
MysqlTest.java
1 package com.cn.jpz.mysql; 2 3 import java.awt.EventQueue; 4 5 import javax.swing.JFrame; 6 import javax.swing.JLabel; 7 import javax.swing.JOptionPane; 8 9 import java.awt.BorderLayout; 10 import java.awt.Color; 11 import java.awt.event.ActionEvent; 12 import java.awt.event.ActionListener; 13 import java.sql.Connection; 14 import java.sql.Date; 15 import java.sql.DriverManager; 16 import java.sql.PreparedStatement; 17 import java.sql.ResultSet; 18 import java.sql.SQLException; 19 import java.sql.Statement; 20 import java.text.ParseException; 21 import java.text.SimpleDateFormat; 22 import java.util.ArrayList; 23 import java.util.List; 24 25 import javax.swing.JTextField; 26 import javax.swing.JButton; 27 28 public class MysqlTest { 29 30 private JFrame frame; 31 private JTextField textField; 32 private JTextField textField_1; 33 34 private JButton btnInsert; 35 private String sDriver; 36 private Connection conn; 37 private PreparedStatement pstmt = null; 38 private Statement stmt; 39 private PreparedStatement pst = null; 40 private List<ChildVista> datas = new ArrayList<ChildVista>(); 41 private JButton btnNewButton; 42 43 public static String startDateString; 44 public static String endDateString; 45 public static boolean isValidDate; 46 private JTextField textField_2; 47 private PreparedStatement pst2 = null; 48 private ResultSet rst = null; 49 private ResultSet rs; 50 public static int equipNo; 51 private static final int PAGE_SIZE=1000; 52 53 /** 54 * Launch the application. 55 */ 56 public static void main(String[] args) { 57 EventQueue.invokeLater(new Runnable() { 58 public void run() { 59 try { 60 MysqlTest window = new MysqlTest(); 61 window.frame.setVisible(true); 62 } catch (Exception e) { 63 e.printStackTrace(); 64 } 65 } 66 }); 67 } 68 69 /** 70 * Create the application. 71 */ 72 public MysqlTest() { 73 initialize(); 74 } 75 76 /** 77 * Initialize the contents of the frame. 78 */ 79 private void initialize() { 80 frame = new JFrame(); 81 frame.getContentPane().setBackground(Color.WHITE); 82 frame.setBounds(100, 100, 450, 300); 83 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 84 frame.getContentPane().setLayout(null); 85 86 JLabel lblNewLabel = new JLabel("\u8D77\u59CB\u65E5\u671F\uFF1A"); 87 lblNewLabel.setBounds(24, 69, 69, 15); 88 frame.getContentPane().add(lblNewLabel); 89 90 JLabel lblNewLabel_1 = new JLabel("\u622A\u6B62\u65E5\u671F\uFF1A"); 91 lblNewLabel_1.setBounds(246, 69, 66, 15); 92 frame.getContentPane().add(lblNewLabel_1); 93 94 textField = new JTextField(); 95 textField.setText("2015-02-27"); 96 textField.setBounds(103, 66, 79, 21); 97 frame.getContentPane().add(textField); 98 textField.setColumns(10); 99 100 textField_1 = new JTextField(); 101 textField_1.setText("2015-03-02"); 102 textField_1.setBounds(322, 66, 79, 21); 103 frame.getContentPane().add(textField_1); 104 textField_1.setColumns(10); 105 106 btnInsert = new JButton("\u5F00\u59CB"); 107 btnInsert.addActionListener(new ActionListener() { 108 public void actionPerformed(ActionEvent e) { 109 batchInsertIntoMysql(); 110 } 111 }); 112 btnInsert.setBounds(164, 154, 93, 23); 113 frame.getContentPane().add(btnInsert); 114 115 btnNewButton = new JButton("\u83B7\u53D6\u65E5\u671F"); 116 btnNewButton.addActionListener(new ActionListener() { 117 public void actionPerformed(ActionEvent e) { 118 isValidDate = getDate(); 119 if (isValidDate) { 120 ConnODBC(); 121 getDataFromAccess(); 122 } else { 123 JOptionPane.showMessageDialog(null, "日期、设备号格式不正确,请重新输入!!"); 124 } 125 } 126 }); 127 btnNewButton.setBounds(164, 114, 93, 23); 128 frame.getContentPane().add(btnNewButton); 129 130 JLabel lblNewLabel_2 = new JLabel( 131 "\u65E5\u671F\u683C\u5F0F\uFF1A2015-03-20"); 132 lblNewLabel_2.setBounds(24, 23, 129, 21); 133 frame.getContentPane().add(lblNewLabel_2); 134 135 JLabel lblNewLabel_3 = new JLabel( 136 "\u6CE8\uFF1A\u8F93\u5165\u8D77\u59CB\u65E5\u671F\u548C\u622A\u6B62\u65E5\u671F\u4EE5\u540E\uFF0C\u70B9\u51FB\u83B7\u53D6\u65E5\u671F\uFF0C\u7136\u540E\u70B9\u51FB\u5F00\u59CB"); 137 lblNewLabel_3.setForeground(Color.MAGENTA); 138 lblNewLabel_3.setBounds(10, 187, 414, 23); 139 frame.getContentPane().add(lblNewLabel_3); 140 141 JLabel lblNewLabel_4 = new JLabel( 142 "\u5219\u5F00\u59CB\u6570\u636E\u7684\u5BFC\u5165\uFF0C\u5F00\u59CB\u6309\u94AE\u6062\u590D\u6B63\u5E38\uFF0C\u6216\u8005\u7A0B\u5E8F\u9000\u51FA\u5219\u5BFC\u5165\u7ED3\u675F"); 143 lblNewLabel_4.setForeground(Color.MAGENTA); 144 lblNewLabel_4.setBounds(24, 208, 400, 21); 145 frame.getContentPane().add(lblNewLabel_4); 146 147 JLabel label = new JLabel("\u8BBE\u5907\u53F7\uFF1A"); 148 label.setBounds(203, 26, 54, 15); 149 frame.getContentPane().add(label); 150 151 textField_2 = new JTextField(); 152 textField_2.setText("100"); 153 textField_2.setBounds(272, 23, 66, 21); 154 frame.getContentPane().add(textField_2); 155 textField_2.setColumns(10); 156 157 JLabel lbls = new JLabel("\u8BF7\u8010\u5FC3\u7B49\u5F855s"); 158 lbls.setForeground(Color.MAGENTA); 159 lbls.setBackground(Color.BLUE); 160 lbls.setBounds(267, 118, 93, 19); 161 frame.getContentPane().add(lbls); 162 } 163 164 /** 165 * 获取mysql连接 166 * 167 * @return 168 */ 169 public Connection getMysqlConn() { 170 sDriver = "com.mysql.jdbc.Driver"; 171 String url = "jdbc:mysql://localhost:3306/vista"; 172 String user = "boctek"; 173 String passwd = "BCERA1688"; 174 try { 175 Class.forName("com.mysql.jdbc.Driver"); 176 conn = DriverManager.getConnection(url, user, passwd); 177 } catch (Exception e1) { 178 e1.printStackTrace(); 179 } 180 return conn; 181 } 182 183 /** 184 * 关闭mysql连接 185 */ 186 public void closeMysqlConn(Connection conn) { 187 try { 188 if (conn != null || !conn.isClosed()) { 189 conn.close(); 190 } 191 } catch (SQLException e) { 192 e.printStackTrace(); 193 } 194 195 } 196 197 // 批量插入数据 198 public boolean batchInsertIntoMysql() { 199 System.out.println("开始插入"); 200 List<ChildVista> initialize = datas; 201 for (ChildVista cv : initialize) { 202 insertToMysql(cv); 203 } 204 return false; 205 206 } 207 208 public void insertToMysql(ChildVista childVista) { 209 conn = getMysqlConn(); 210 try {// 执行数据库查询,返回结果 211 String sql = "insert into cur_rec values(?,?,?,?,?)"; 212 pst = conn.prepareStatement(sql); 213 pst.setDate(1, childVista.getTmDate()); 214 pst.setInt(2, childVista.getStan()); 215 pst.setInt(3, childVista.getEquipNo()); 216 pst.setInt(4, childVista.getYcNo()); 217 pst.setString(5, childVista.getData().toString()); 218 pst.execute(); 219 pst.close(); 220 } catch (SQLException e) { 221 System.out.println(e.getMessage()); 222 } finally { 223 // 关闭数据库连接 224 closeMysqlConn(conn); 225 } 226 } 227 228 /* 229 * // 批量插入数据 public boolean batchInsertIntoMysql() { List<ChildVista> 230 * initialize = datas; try { insertToMysql(initialize); } catch 231 * (ParseException e) { e.printStackTrace(); } return false; 232 * 233 * } 234 * 235 * public void insertToMysql(List<ChildVista> childVista) throws 236 * ParseException { conn = getMysqlConn(); SimpleDateFormat sdf = new 237 * SimpleDateFormat("yyyy-MM-dd"); java.util.Date startDate = 238 * sdf.parse(startDateString); java.util.Date endDate = 239 * sdf.parse(endDateString); 240 * 241 * String deleteSql = "delete from cur_rec where tmdate >= ‘"+ new 242 * Date(startDate.getTime()) +"‘ and tmdate <= ‘"+new 243 * Date(endDate.getTime())+"‘"; try { System.out.println(deleteSql); pst = 244 * conn.prepareStatement(deleteSql); pst.executeUpdate(); } catch 245 * (SQLException e1) { e1.printStackTrace(); } 246 * 247 * String sql = "insert into cur_rec values(?,?,?,?,?)"; try {// 248 * 执行数据库查询,返回结果 pst = conn.prepareStatement(sql); int count = 0; for (int i 249 * = 0; i < childVista.size(); i++) { ChildVista child = childVista.get(i); 250 * pst.setDate(1, child.getTmDate()); pst.setInt(2, child.getStan()); 251 * pst.setInt(3, child.getEquipNo()); pst.setInt(4, child.getYcNo()); 252 * pst.setString(5, child.getData().toString()); pst.addBatch(); } 253 * pst.executeBatch(); } catch (Exception e) { e.printStackTrace(); } 254 * finally { try{ //关闭步骤3所开启的state对象 pst.close(); 255 * System.out.println("关闭pst对象"); } catch(SQLException e){} try{ //关闭数据库连接 256 * conn.close(); System.out.println("关闭sql数据库连接对象"); } catch(SQLException 257 * e){ 258 * 259 * } } } 260 */ 261 public boolean getDate() { 262 boolean convertSuccess = true; 263 startDateString = textField.getText(); 264 endDateString = textField_1.getText(); 265 String equipNoString = textField_2.getText(); 266 if (startDateString == null || startDateString.length() <= 0 267 || endDateString == null || endDateString.length() <= 0 268 || equipNoString == null || equipNoString.length() <= 0) { 269 JOptionPane.showMessageDialog(null, "日期、设备号不能为空"); 270 return false; 271 } 272 SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); 273 format.setLenient(false); 274 try { 275 format.parse(startDateString); 276 format.parse(endDateString); 277 equipNo = Integer.parseInt(equipNoString); 278 } catch (ParseException e) { 279 // TODO Auto-generated catch block 280 convertSuccess = false; 281 e.printStackTrace(); 282 } 283 284 return convertSuccess; 285 } 286 287 public void ConnODBC() { 288 289 // 步骤1:加载驱动程序 290 sDriver = "com.hxtt.sql.access.AccessDriver"; 291 try { 292 Class.forName(sDriver); 293 } catch (Exception e) { 294 System.out.println("无法加载驱动程序"); 295 e.printStackTrace(); 296 297 } 298 System.out.println("步骤1:加载驱动程序--成功!"); 299 conn = null; 300 stmt = null; 301 String sCon = "jdbc:access:///ChildVista.mdb"; 302 303 try { 304 conn = DriverManager.getConnection(sCon); 305 if (conn != null) { 306 System.out.println("步骤2:连接数据库--成功!"); 307 } 308 // 步骤3:建立JDBC的Statement对象 309 stmt = conn.createStatement(); 310 } catch (SQLException e) { 311 System.out.println("连接错误:" + sCon); 312 System.out.println(e.getMessage()); 313 314 } 315 } 316 317 public void getDataFromAccess() { 318 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); 319 320 try {// 执行数据库查询,返回结果 321 java.util.Date startDate = sdf.parse(startDateString); 322 java.util.Date endDate = sdf.parse(endDateString); 323 // where tmdate between #"+new Date(startDate.getTime())+"# and 324 // #"+new Date(endDate.getTime())+"#" 325 326 //Sql语句 获取规定时间段内的数据 327 String sSQL = "SELECT count (*) FROM cur_rec where tmdate >= ? and tmdate <= ?"; 328 pst = conn.prepareStatement(sSQL); 329 pst.setDate(1, new Date(startDate.getTime())); 330 pst.setDate(2, new Date(endDate.getTime())); 331 System.out.println(sSQL); 332 rs = pst.executeQuery(); 333 ChildVista childVista; 334 Date date; 335 int count = 0; 336 if (rs.next()) { 337 count = rs.getInt(1); 338 } 339 //获取分页 340 int page=count/PAGE_SIZE; 341 page = page +( count % PAGE_SIZE > 0 ? 1 : 0); 342 System.out.println("page"+page); 343 for (int i = 0; i < page; i++) { 344 int s = count - i * PAGE_SIZE; 345 int pageSize = s > PAGE_SIZE ? PAGE_SIZE : s; 346 //Access分页获取规定时间段内的数据 347 String sql = "SELECT TOP "+pageSize+" * FROM( SELECT * FROM (SELECT TOP "+PAGE_SIZE*(i+1)+" * FROM cur_rec where tmdate >= ? and tmdate <= ? ORDER BY tmdate DESC,STA_N DESC,EQUIP_NO DESC,YC_NO DESC) ORDER BY tmdate,STA_N,EQUIP_NO,YC_NO)"; 348 //String sql = "SELECT * FROM cur_rec where tmdate >= ? and tmdate <= ?"; 349 pst2 = conn.prepareStatement(sql); 350 pst2.setDate(1, new Date(startDate.getTime())); 351 pst2.setDate(2, new Date(endDate.getTime())); 352 rst =pst2.executeQuery(); 353 while (rst.next()) { 354 date = rst.getDate("tmdate"); 355 childVista = new ChildVista(date, rst.getInt("STA_N"),rst.getInt("EQUIP_NO") + equipNo,rst.getInt("YC_NO"), rst.getBytes("data")); 356 datas.add(childVista); 357 } 358 System.out.println("第"+(i+1)+"次插入数据。。。"); 359 } 360 System.out.println(count + "条"); 361 } catch (SQLException e) { 362 e.printStackTrace(); 363 } catch (ParseException e1) { 364 e1.printStackTrace(); 365 } finally { 366 try { 367 // 关闭步骤3所开启的state对象 368 rst.close(); 369 pst2.close(); 370 rs.close(); 371 pst.close(); 372 System.out.println("关闭statement对象"); 373 } catch (SQLException e) { 374 } 375 try { 376 // 关闭数据库连接 377 stmt.close(); 378 conn.close(); 379 System.out.println("关闭数据库连接对象"); 380 } catch (SQLException e) { 381 382 } 383 } 384 } 385 }
ChildVista.java
1 /* 2 * ChildVista 模型 3 */ 4 public class ChildVista { 5 public Date tmDate; 6 public int stan; 7 public int equipNo; 8 public int ycNo; 9 public byte[] data; 10 11 public ChildVista() { 12 super(); 13 } 14 15 public ChildVista(Date tmDate, int stan, int equipNo, int ycNo, byte[] data) { 16 super(); 17 this.tmDate = tmDate; 18 this.stan = stan; 19 this.equipNo = equipNo; 20 this.ycNo = ycNo; 21 this.data = data; 22 } 23 24 public Date getTmDate() { 25 return tmDate; 26 } 27 28 public void setTmDate(Date tmDate) { 29 this.tmDate = tmDate; 30 } 31 32 public int getStan() { 33 return stan; 34 } 35 36 public void setStan(int stan) { 37 this.stan = stan; 38 } 39 40 public int getEquipNo() { 41 return equipNo; 42 } 43 44 public void setEquipNo(int equipNo) { 45 this.equipNo = equipNo; 46 } 47 48 public int getYcNo() { 49 return ycNo; 50 } 51 52 public void setYcNo(int ycNo) { 53 this.ycNo = ycNo; 54 } 55 56 public byte[] getData() { 57 return data; 58 } 59 60 public void setData(byte[] data) { 61 this.data = data; 62 } 63 64 }
以上即完成了Access往MySql里的数据插入。
二、java打包生成.exe(参考ice world的博客)
前言:
我们都知道Java可以将二进制程序打包成可执行jar文件,双击这个jar和双击exe效果是一样一样的,但感觉还是不同。其实将java程序打包成exe也需要这个可执行jar文件。
准备:
第一步:
eclipse、exe4j
选择Java文件夹下的Runnable JAR file,点击Next,
点击finish即可。完成了AccessToMySql.jar的导出
第二步:
将项目打包成exe,这里要明确一点,并不是把所有的文件都打包成一个exe,资源文件是不能包进去的,往下看↓
首先,在任意目录创建一个文件夹,最好命名和项目名相同,我在D盘创建了一个“AccessToMySql”文件夹,之后将所有的资源文件以及我们生成的可执 行jar文件(我的AccessToMySql.jar)都拷贝到这个文件夹里,lib目录,如果你怕执行该程序的机器上没安装jre,那么你需 要将自己机器上的jre目录也拷贝进来,我安装的jre1.8.0_25,最后的目录结构:
打开exe4j,跳过欢迎,直接点击左侧导航的第二项,因为我们已经提前将java项目打包成可执行jar文件了
在弹出窗口,选择“JAR in EXE mode”,点击“Next”
在新窗口中,为我们的应用取个名称,之后选择exe生成目录(我的D:\AccessToMySql),点击“Next”
为我们要生成的exe取名,如果想生成自定义图标,那么选择你的ico文件,如果你不想在一台电脑上运行多个你的程序,你可以勾选“Allow only a single...”,这里我没选,点击“Next”
点击绿色“+”,设置程序运行的Class Path,先选择我们自己的可执行jar文件(我的AccessToMySql.jar),点击OK
之后点击General中的Main Class选择按钮,在弹出窗口中,exe4j会自动搜索当前Class Path下的全部jar中包含main方法的类,并列出,我这里是MysqlTest,直接选择它点击“OK”,程序入口类就设置完成了
点击绿色“+”,然后添加我们所依赖的lib库,Access_JDBC30.jar,mysql-connector-java-commercial-5.1.30-bin.jar
输入Java最小Jre版本号,即低于这个版本的Jre无法运行该程序,接着点击“Advanced Options”-“Search sequence”,设置一下我们的JRE,之前说过,如果客户机上没装Jre咋办?,没关系我们捆绑一个进去
点击绿色“+”来选择捆绑的JRE位置
默认,点击“Next”
默认,点击“Next”
默认,点击“Next”
即在D盘的文件夹下生成了我们所需的AccessToMySql.exe
AccessToMySql数据库的导入以及java生成.exe文件
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原文地址:http://www.cnblogs.com/wanzaiyimeng/p/4387256.html