1.新建一個Java web項目。
2.導入mysql驅動包。（這個跟上一篇寫的Java連接mysql類似）
3.編寫測試代碼
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page language="java" %>
<%@ page import="com.mysql.jdbc.Driver" %>
<%@ page import="java.sql.*" %>
<%
String driverName="com.mysql.jdbc.Driver";
String userName="root";
String userPasswd="root";
String dbName="goods";
String tableName="t_admin";
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection=DriverManager.getConnection(url);
Statement statement = connection.createStatement();
String sql="SELECT * FROM "+tableName;
ResultSet rs = statement.executeQuery(sql);
ResultSetMetaData rmeta = rs.getMetaData();
int numColumns=rmeta.getColumnCount();
out.print("id");
out.print("|");
out.print("num");
out.print("<br>");
while(rs.next()) {
out.print(rs.getString(1)+" ");
out.print("|");
out.print(rs.getString(2));
out.print("<br>");
}
out.print("<br>");
out.print("數據庫操作成功，恭喜你");
rs.close();
statement.close();
connection.close();
%>
4.把mysql的驅動包拷貝到tomcat的lib目錄一份。
5.打開瀏覽器，運行測試文件。
