下載地址：http://dev.mysql.com/downloads/connector/j/
安裝mysql-connector-java-5.1.38.zip：
1.解壓文件-》把里面的mysql-connector-java-5.1.38-bin.jar文件復制到-》E:\Tomcat\lib
2.右鍵Web工程-》properties-》Libraries-》Add External JARs-》mysql-connector-java-5.1.38-bin.jar添加進來-》finish
檢查安裝是否成功：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <%@ page import="java.sql.*" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'testconnection.jsp' starting page</title> </head> <body> <% //student為數據庫名字，加上useSSL=true不然報錯 String url="jdbc:mysql://localhost:3306/student?useSSL=true"; String useName="root"; String password="2277092"; Connection conn=null; try{ Class.forName("com.mysql.jdbc.Driver"); } catch(ClassNotFoundException e){ out.print("加載驅動器類出現異常"); } try{ conn=null; conn=DriverManager.getConnection(url,useName,password); } catch(SQLException e){ out.print("連接數據庫的過程中出現SQL異常"); } if(conn==null){ out.print("連接數據庫失敗"); } else{ out.print("連接數據庫成功"); } try{ conn.close(); } catch(SQLException e){ out.print("關閉數據庫連接時出現SQL異常"); } %> </body> </html>