没有导包, 可以搜索jsp里面如何import 或者Connection写成 java.sql.Connection SQLException 写成 java.sql.SQLException
Connection conn=null; Statement stmt=null;//显示的数据的格式response.setContentType("text/html;charset=UTF-8"); PrintWriter out=response.getWriter();try{ Class.forName("com.mysql.jdbc.Driver");//输入用户名密码和连接。conn=DriverManager.getConnection(db_url,user,pass);//用于向数据库发送sql语句s...
1. 新建一个web project. 选择“Dynamic Web Project”. 按提示往下继续进行。 2. 工程建立完成后,在Webcontent目录下,右键new->jsp file 3. 输入jsp代码如下: <%@page import="java.sql.SQLException" import="java.sql.ResultSet" import="java.sql.Statement"%> <%@ page language="java" contentType=...
String connectionUrl ="jdbc:sqlserver://localhost:1433;databaseName=AdventureWorks;user=MyUserName;password=<password>;encrypt=false;"; Connection con = DriverManager.getConnection(connectionUrl); 警告 上述连接字符串使用encrypt=false,不建议将其用于生产。 有关使用 JDBC 加密数据库连接的详细信息,请参阅使...
<H1>JSP Example 3</H1> <% String uid, upwd, dpwd ; Connection dbconn; ResultSet results; PreparedStatement sql; TRY { Class.forname("org.gjt.mm.mysql.driver").newInstance(); TRY { dbconn = DriverManager.getConnection("jdbc:mysql://localhost/visitor","",""); uid ...
java.sql.Connection connection = java.sql.DriverManager.getConnection ( "jdbc:sapdb://" + host + "/" + database_name,user_name, password) String url = "jdbc:interbase://localhost/e:/testbed/database/employee.gdb"; Class.forName("interbase.interclient.Driver");//Driver d = new interbase...
RDBMSExample connection URL IBM DB2 (using theDRDA driver)"jdbc:db2://hostname:port/dbname" Informix® Dynamic Server 11.7"jdbc:informix-sqli://hostname:port/dbname:informixserver=<Informix Server Name>" Oracle (using the "thin driver")"jdbc:oracle:thin:@hostname:1521:SID", using "host:...
publicclassConnectionUtil { //第一种方法 publicConnection getConnection(){ Connection conn =null; try{ //Class.forName加载驱动 Class.forName("com.mysql.jdbc.Driver"); //DriverManager获得连接 conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbc_db","root","mysqladmin"); ...
org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-199] at org.h2.message.DbException.getJdbcSQLException(DbException.java:617) ~[h2-1.4.199.jar:1.4.199] ...
<jsp:setProperty name="db" property="*" /> <%! ResultSet rs = null ; int i; %> <% String CityName=request.getParameter("CityName"); System.out.println(CityName); out.println(CityName); try{ System.out.println("before connection"); ...