JDBC连接mysql
安装JDBC驱动mysql-connector-java-5.1.43-bin.jar
https://blog.csdn.net/weixin_41831619/article/details/79914307
)将JDBC驱动mysql-connector-java-5.1.43-bin.jar文件拷贝到Tomcat安装目录下的lib文件夹中。用JDBC连接数据库。
创建jsp文件并加入代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.sql.*"%>
<html>
<head>
<title>通过JSP打开数据表</title>
</head>
<body>
hello
<%
try {
Class.forName("com.mysql.jdbc.Driver"); // 驱动程序名
String url = "jdbc:mysql://localhost:3306/test1"; //数据库名
String username = "root"; //数据库用户名
String password = "123456"; //数据库用户密码
Connection conn = DriverManager.getConnection(url, username, password); //连接状态
if(conn != null){
out.print("数据库连接成功！");
//out.print("<br />");
//Statement stmt = null;
//ResultSet rs = null;
//String sql = "SELECT *FROM teacher;"; //查询语句
//stmt = conn.createStatement();
//rs = stmt.executeQuery(sql);
//out.print("查询结果：");
//out.print("<br />");
//.println("姓名"+" "+"性别 "+" "+"年龄");
//out.print("<br />");
//while (rs.next()) {
//out.println(rs.getString("姓名")+"   "+rs.getString("性别")+"   "+rs.getInt("年龄")); //将查询结果输出
//}
}
else{
out.print("连接失败！");
}
}catch (Exception e) {
out.print("数据库连接异常！");
}
%>
</body>
</html>
选择jsp文件，右键run as Server
