分析：这种传统连接方式实现起来很简单，但是代码量相对较多，而且用完之后还要有手动释放资源的操作，相对的需要有很多重读代码。 2.srping jdbc方式 当然，首要任务是引入包，涉及的包有一点小多，所以首选maven来导入<!--MySQL Driver--> <dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.38</version> </dependency><!--spring--> <dependency><groupId>org.springframework</...
static void main(String[] args) throws SQLException {try {Class.forName("com.mysql.jdbc.Driver");} catch (ClassNotFoundException e) {System.out.println("找不到驱动类！");e.printStackTrace();}String url = "jdbc:mysql://localhost:3306/exe_course";String userName = "root";String password = "123456";try (Connection connection = DriverManager.getConnection(url, userName, password)) {System.out.println(...
1.连接数据库package com.jaovo.msg.Util;import java.sql.*; public class DBUtil { public static Connection getConnection() { //加载驱动 String dbDrive="com.mysql.jdbc.Driver"; try { try { Class.forName(dbDrive).newInstance(); } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } catch (ClassNotFoundExcepti...
1.连接SqlServer package org.test01.utils; import java.sql.*; public class DButil { /* * 各种数据库的连接 */ //连接SqlServer public static String driver = "com.microsoft.sqlserver.jdbc.SQLSeriverDriver";//连接驱动 public static String url = "jdbc://localhost:1433;databaseName=数据库名";// public static String uid = "";//用户名 public static String upwd = "";//用户密码 static { try { Class.fo...
Vue.js循环要使用 v-for 指令。v-for 指令需要以 student in StudentList 形式的特殊语法使用， StudentList 是源数据数组并且student 是数组元素迭代的别名。<div id="MyDiv1"><ol><li v-for="student in StudentList">{{student.name}}</li></ol> </div><script type="text/javascript">var StudentList = [{name:‘小一‘},{name:‘小二‘},{name:‘小三‘}];var myViewModel = new Vue({el:‘#MyDiv1‘,data:{StudentList} ...
java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException;public class DbTool {private static Connection conn=null; //创建Connection对象public static Connection getConn() {try {Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); //加载SQL Server数据库驱动} catch(ClassNotFoundException e) {e.printStackTrace();}//指定连接数据库的URLString url="jdbc:sqlserver:...
1》新建一个配置文件，名为jdbc.properties将其放入src中 2》在项目中导入jdbc驱动，注意连接不同的数据库，所用到的驱动是不一样的，这些在网上都能找到 具体导入jar的方法，请参照http://blog.csdn.net/mazhaojuan/article/details/21403717 2、代码 1 import java.io.InputStream;2 import java.sql.Connection;3 import java.sql.DriverManager;4 import java.sql.ResultSet;5 import java.sql.SQLException;6 import java.sq...
com.plan1.dbutil;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class Dbutil {public Connection DBase() {// 初始化数据库连接方法,方便引用Connection conn = null;// 创建一个Connection句柄try {Class.forName("com.mysql.jdbc.Driver");// 加载数据库驱动String url = "jdbc:mysql://localhost:3306/test?charaterE...
Java连接Oracle数据库常用方法标签：public man next 加载 oracle数据库 .exe nts 数据库名 cep 本文系统来源：http://www.cnblogs.com/judewu/p/7929620.html
package db.util; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStreamReader; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; imp...
2. 创建JavaFX项目package application; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement;import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.Label; import javafx.sc...
print? public class DBConnection { private Connection con; //定义数据库连接类对象 private PreparedStatement pstm; private String user="root"; //连接数据库用户名 private String password="123456"; //连接数据库密码 private String driverName="com.mysql.jdbc.Driver"; //数据库驱动 private String url="jdbc:mysql://localhost:3306/qingqingtuan"; ...
/*** */ import java.sql.*; import java.util.Date; import org.omg.CORBA.PUBLIC_MEMBER; /*** @author Administrator**/ public class Mysql {public void Chaxun() {try {Class.forName("com.mysql.jdbc.Driver");} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}String url="jdbc:mysql://localhost:3306/beijing";//jabc的路径Connection connection;try {connection=DriverManager.getConnection(ur...
先看DAO,在DAO里面没有对name加上单引号，导致数据库查询出错，由于java会自动拼接为字符串 public AdminDTO selectAdminById(String name){ Connection conn = DbHelper.getConnection();String sql = "select * from admin where username= "+name;AdminDTO admin = null;try {PreparedStatement pst = conn.prepareStatement(sql);ResultSet rst = pst.executeQuery();while (rst.next()) {admin = new AdminDTO();admin.set...
class Dbutil {private static final String DBDRIVER = "com.mysql.jdbc.Driver";private static final String DBURL = "jdbc:mysql://127.0.0.1:3306/emp_dept";private static final String USER = "root";private static final String PASSWORD ="123456";public static void main(String[] args) throws Exception {//加载数据库驱动程序 Class.forNameClass.forName(DBDRIVER);连接数据库连接数据必须依靠 DriverManager 类...