在小学期的学习中，我了解了myeclipse的开发环境，与mysql连接，可对数据库进行增、删、改、查等操作，以下是在myeclipse中连接数据库的代码。

package cn.neusoft.mybatis.jdbc;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

public class Dbutils {

private static final String DRIVER = "com.mysql.jdbc.Driver";

private static final String URL = "jdbc:mysql://localhost:3308/mybatis";

private static final String UNAME = "root";

private static final String UPWD = "123";

private static Connection con = null;

private static ResultSet rs = null;

private static PreparedStatement ps = null;

static{

try {

Class.forName(DRIVER);

} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public static void getConnection(){

try {

con = DriverManager.getConnection(URL, UNAME, UPWD);

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public static void closeAll(){

if(null!=rs){

try {

rs.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

if(null!=ps){

try {

ps.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

if(null!=con){

try {

con.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

public static ResultSet executeQuery(String sql,Object[] obj){

getConnection();

try {

ps = con.prepareStatement(sql);

if(null!=obj){

for(int i=0;i

ps.setObject(i+1, obj[i]);

}

}

rs = ps.executeQuery();

} catch (SQLException e) {

e.printStackTrace();

}

return rs;

}

public static int executeUpdate(String sql,Object[] obj){

int count = 0;

getConnection();

try {

ps = con.prepareStatement(sql);

if(null!=obj){

for(int i=0;i

ps.setObject(i+1, obj[i]);

}

}

count = ps.executeUpdate();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{

closeAll();

}

return count;

}

public static boolean executeCreate(String sql,Object[] obj){

getConnection();

boolean b =false;

try {

ps = con.prepareStatement(sql);

if(null!=obj){

for(int i=0;i

ps.setObject(i+1, obj[i]);

}

b = ps.execute();

}

} catch (SQLException e) {

e.printStackTrace();

}finally{

closeAll();

}

if(b){

return true;

}

return false;

}

}