最近写的一个数据库导入数据的程序，有兴趣的同学可以参考一下：

这个程序是针对mysql数据库的，在本地或服务器上运行，主要的需求还是，针对项目的某些bug修复

后，客户的数据要搬到新表上来，避免新版本上线或发布后用户的数据丢失，里面有Json格式的字段，不太好处理。

视频具体效果预览：http://www.polyv.net/about/news/2013/0922/142.html

package com.ibatis.test;import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.security.interfaces.RSAKey;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.aspectj.weaver.patterns.ThisOrTargetAnnotationPointcut;import ayou.util.DOC;import com.cc.ovp.domain.PlayProfile;
import com.cc.ovp.domain.PlayerSkin;
import com.cc.ovp.domain.PlayerSkin.Ext;public class PlayerskinToPlayerprofile {private static Connection connection; private static Statement statement; private static ResultSet resultSet; private ResultSetMetaData rsMetaData; 构造函数public PlayerskinToPlayerprofile(){String url = "jdbc:mysql://127.0.0.1:3306/xuan?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull"; String username = "root"; String password = "123456";//加载驱动程序以连接数据库try { Class.forName( "org.gjt.mm.mysql.Driver" ); connection = DriverManager.getConnection(url, username, password ); } //捕获加载驱动程序异常catch ( ClassNotFoundException cnfex ) { System.err.println("装载 JDBC/ODBC 驱动程序失败"); cnfex.printStackTrace(); } //捕获连接数据库异常catch ( SQLException sqlex ) { System.err.println( "无法连接数据库" ); sqlex.printStackTrace(); }}///@SuppressWarnings("unchecked")private static void getTable2() throws IOException { try { //执行SQL语句//String query = inputQuery.getText(); statement = connection.createStatement(); resultSet = statement.executeQuery("select * from player_skin;"); //在表格中显示查询结果//DOC[] docs= resultSet;/*   List list=(List)resultSet;PlayerSkin palyerSkin=new PlayerSkin(); System.out.println("记录数===="+list.size());for(int i=0; i<list.size();i++){System.out.println(i+"========"+palyerSkin.getPlayerid()+"====="+palyerSkin.getUserid());}*/PlayerSkin palyerSkin2=new PlayerSkin(); PlayerSkin.Ext ext=new Ext();BufferedWriter bw=new BufferedWriter(new FileWriter("home/qixuan/playerSkinExtToplayProfile.txt"));int j=0;while(resultSet.next()){j++;//System.out.println("======"+extTo);try {String extTo=resultSet.getString("ext");ext=(PlayerSkin.Ext.fromJSON(extTo));} catch (Exception e) {try {bw.write("userid---"+resultSet.getString("userid"));bw.newLine();bw.flush();} catch (IOException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}// TODO Auto-generated catch blocke.printStackTrace();}System.out.println(j+"========"+resultSet.getString("playerid")+"====="+resultSet.getString("userid")+"===D==="+ext.getWatermark_show()+"===E==="+ext.getWatermarklocation()+"===r==="+ext.getWatermark_diaph()+"===q==="+ext.getWatermarkurl1()+"===y==="+ext.getWatermarkurl2()+"===u==="+ext.getWatermarkurl3()+"===j==="+ext.getAutoplay()                 +"===w==="+ext.getDefinition());//+"==EXT==="+resultSet.getString("ext"));//System.out.println(j+"=========="+ext.getDisable_host()+"=========="+ext.getEnable_host());DOC doc3 = new DOC();String userid3= resultSet.getString("userid");List<PlayProfile> playProfiles=selectDate2(userid3);if(playProfiles.size()>0){//System.out.println("===数据===="+playProfiles.get(0).getExt());doc3 = com.cc.ovp.util.Ext.parseJson(playProfiles.get(0).getExt());//doc3.put("definition", "1");//doc3.put("width", "600");//doc3.put("autoplay",ext.getAutoplay());doc3.put("watermarklocation",ext.getWatermarklocation());doc3.put("watermark_show",ext.getWatermark_show());doc3.put("watermark_diaph",ext.getWatermark_diaph());doc3.put("watermarkurl1",ext.getWatermarkurl1());doc3.put("watermarkurl2",ext.getWatermarkurl2());doc3.put("watermarkurl3",ext.getWatermarkurl3());String ext3 = com.cc.ovp.util.Ext.setJson(doc3);//System.out.println("ext3::::::::::::::"+ext3);updateDate2(userid3,ext3);//更新数据}else{doc3.put("definition", "1");doc3.put("width", "600");doc3.put("height", "0");doc3.put("autoplay","1");doc3.put("watermarklocation",ext.getWatermarklocation());doc3.put("watermark_show",ext.getWatermark_show());doc3.put("watermark_diaph",ext.getWatermark_diaph());doc3.put("watermarkurl1",ext.getWatermarkurl1());doc3.put("watermarkurl2",ext.getWatermarkurl2());doc3.put("watermarkurl3",ext.getWatermarkurl3());String ext3 = com.cc.ovp.util.Ext.setJson(doc3);//System.out.println("ext3::::::::::::::"+ext3);insertDate2(resultSet.getString("userid"),ext3);//插入数据}}bw.close();resultSet.close();statement.close();//connection.close();} catch ( SQLException sqlex ) {sqlex.printStackTrace(); } } 查询play_profile表的数据@SuppressWarnings("unchecked")public static List<PlayProfile> selectDate2(String userid3) throws SQLException{//statement=connection.createStatement();PreparedStatement ps=connection.prepareStatement("select * from play_profile where userid=?");ps.setString(1,userid3);ResultSet rs=ps.executeQuery();List<PlayProfile> list=new ArrayList<PlayProfile>();while(rs.next()){PlayProfile playProfile = new PlayProfile();playProfile.setUserid(rs.getString("userid"));playProfile.setAutoid(rs.getInt("autoid"));playProfile.setExt(rs.getString("ext"));playProfile.setStatus(rs.getInt("status"));list.add(playProfile);}ps.close();return list;}插入数据public static void insertDate2(String userid,String ext3) throws SQLException{PreparedStatement ps=connection.prepareStatement("insert into play_profile(userid,status,ext) values(?,?,?)");ps.setString(1,userid);ps.setInt(2, 60);ps.setString(3, ext3);ps.executeUpdate();ps.close();}更新数据public static void updateDate2(String userid,String ext3) throws SQLException{PreparedStatement ps=connection.prepareStatement("update play_profile set ext=? where userid=?");ps.setString(1, ext3);ps.setString(2, userid);ps.executeUpdate();ps.close();      }public static void main(String[] args) throws IOException{PlayerskinToPlayerprofile ptp=new PlayerskinToPlayerprofile();ptp.getTable2();//System.out.println("程序入口");}}///

运行效果

这里只给出控制台运行情况：

预览地址：http://www.polyv.net/about/news/2013/0922/142.html