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1.dbconnection.jsp<%!ResultSet rs1,rs2,rs3;Connection con;Statement stmt;int acno, balance;String userid;String Accno;public void MakeConnection(){try{Class.forName("oracle.jdbc.driver.OracleDriver"); con=DriverManager.getConnection("Jdbc:Oracle:thin:@localhost:1521:ORCL1",&qu 阅读全文
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session内置对象一.认识session1.session在jsp中是javax.servlet.http.HttpSession的对象,用于区分不同的用户,每一个session就表示一个用户。2.它的主要功能就是判断用户的登陆,常用的方法如下:(1)设置属性:public void setAttribute(String name,Object value)(2)取得属性:public Object getAttribute(String name)(3)删除属性:public void removeAttribute(String name)(4)判断是否新session:public 阅读全文
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1.建表CREATE TABLE login( username varchar2(10) , password varchar2(10) , passwordtype varchar2(10) , status number(9) );INSERT INTO loginVALUES ('a' , 'w123' , 'm' , 1);INSERT INTO loginVALUES ('b' , 'w123' , 's' , 1);I... 阅读全文
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1.useBean.jsp 1 <jsp:useBean id="ib" class="Items.ItemBean" scope="page"/> 2 3 <jsp:setProperty property="numItems" name="ib" value="1000"/> 4 <jsp:setProperty property="unitCost" name="ib" value="25. 阅读全文
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1.useBean.jsp 1 <jsp:useBean id="ib" class="Items.ItemBean" scope="page"/> 2 <html> 3 <head></head> 4 <body bgcolor="lemonchiffon"> 5 <font size="+3"> 6 <ul> 7 <li>Number of items: 8 <jsp:getProperty 阅读全文
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1.html page 1 <html> 2 <head> 3 <title>First Servlet</title> 4 <script language="javascript"> 5 function IsEmp() 6 { 7 if(document.login.username.value=="") 8 { 9 alert("Please Enter Your name!");10 return false;11 }12 else13 {14 return tru 阅读全文