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1、JDBC连接MySQL经典方案最近在学习数据库开发的一些实例，这里浅谈一下用JDBC连接数据库MySQL（当然也可以连接SQL Sever或Oracle了，只是我更喜欢开源软件，同时也更简单）。首先正确安装好MySQL，建立好数据库studentinfomysqlcreate database studentinfo;然后编写java代码，ConnectToMySQL.javaimport java.sql.*;public class ConnectToMySQL public static Connection getConnection() throws SQLException ,ja
2、va.lang.ClassNotFoundExceptionString url = jdbc:mysql:/localhost:3306/studentinfo;Class.forName(com.mysql.jdbc.Driver);String userName = root;String password = ;Connection con = DriverManager.getConnection(url,userName,password);return con;public static void main(String args) tryConnection con = get
3、Connection();Statement sql = con.createStatement();sql.execute(drop table if exists student);sql.execute(create table student(id int not null auto_increment,name varchar(20) not null default name,math int not null default 60,primary key(id););sql.execute(insert student values(1,AAA,99);sql.execute(i
4、nsert student values(2,BBB,77);sql.execute(insert student values(3,CCC,65);String query = select * from student;ResultSet result = sql.executeQuery(query);System.out.println(Student表数据如下：);System.out.println(-);System.out.println(学号+姓名+数学成绩);System.out.println(-);int number;String name;String math;w
5、hile(result.next()number = result.getInt(id);name = result.getString(name);math = result.getString(math);System.out.println(number + + name + + math);sql.close();con.close();catch(java.lang.ClassNotFoundException e)System.err.println(ClassNotFoundException: + e.getMessage();catch(SQLException ex)Sys
6、tem.err.println(SQLException: + ex.getMessage();要注意的是使用MySQL数据库，需要用到对应的JDBC驱动程序mysql-connector-java-5.0.3import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;import java.sql.ResultSet;import java.sql.Statement;import java.sql.*;public class BaseConnection private Con
7、nection con = null;protected Connection getCon() ResultSet rs=null; Statement stmt = null;try Class.forName(org.gjt.mm.mysql.Driver); String url=jdbc:mysql:/192.168.0.10/数据库名?user=USR&password=PWD;conn = DriverManager.getConnection(url); stmt = conn.createStatement(); catch (ClassNotFoundException e
8、) e.printStackTrace(); catch (SQLException e) e.printStackTrace(); return con;1.把mysql-connector-java-5.0.3-bin.jar放到%JAVA_HOME%jrelibext下2.访问类：package mysqldb;import java.sql.*;public class MysqlCon private static String DriverName = org.gjt.mm.mysql.Driver;private String dbURL = jdbc:mysql:/localh
9、ost/test;private String dbuser = root;private String dbpassword = ;private Connection conn;private Statement stmt;private ResultSet rs;public MysqlCon()try Class.forName(DriverName).newInstance();conn = DriverManager.getConnection(dbURL,dbuser,dbpassword);stmt = conn.createStatement();String sql = s
10、elect * from worker;rs = stmt.executeQuery(sql);while(rs.next()System.out.println(rs.getString(1); catch (InstantiationException e) / TODO 自动生成 catch 块e.printStackTrace(); catch (IllegalAccessException e) / TODO 自动生成 catch 块e.printStackTrace(); catch (ClassNotFoundException e) / TODO 自动生成 catch 块e.p
11、rintStackTrace(); catch (SQLException e) / TODO 自动生成 catch 块e.printStackTrace();package interphase;import java.sql.ResultSet;import java.sql.SQLException;import java.util.Vector;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.
12、swing.table.AbstractTableModel;import mysqldb.MysqlCon;public class ShowRS private AbstractTableModel atm;private JTable jtable;private Vector vector;private JScrollPane jsp;private String title=职工号,职工名,性别,出生日期,工资;private MysqlCon mysqlcon;private JFrame frame;public ShowRS()vector = new Vector();at
13、m = new AbstractTableModel()public int getColumnCount() return title.length;public int getRowCount() return vector.size();public Object getValueAt(int rowIndex, int columnIndex) if(!vector.isEmpty()return (Vector)vector.elementAt(rowIndex).elementAt(columnIndex);else return null;/取得单元格中的属性值 public String getColumnName(int columnIndex)return titlecolumnIndex;/数据模型不可编辑，该方法设置为空 public void setValueAt()/取得列所属对象类 public Class getCoumnClass(int c)return getValueAt(0,c).getClass();/设置单元格不可
