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我在index.jsp中詢問用戶輸入,並將該輸入傳送到不同的search.jsp,其中我使用給定查詢搜索數據庫。但是,它沒有連接到數據庫。有人可以幫幫我嗎。HTML頁面未連接到數據庫
這是我在的index.jsp,要求用戶輸入
<form method="searchh" action="search.jsp">
<table>
<tr>
<td><b class="accent">Enter College Name: </b> </td>
<td><input type="text" name="college" STYLE="color: #f4d442; font-family: Verdana; font-weight: bold; font-size: 12px; background-color: #72A4D2;" size="10" maxlength="30"></td>
<td> <input type="submit" value="Search Your College" <a href="#submit" class="btn btn-default btn-lg btn-satact" role="button"></a>></td>
</tr>
</table>
</form>
這裏是我的search.jsp的代碼代碼。數據庫名稱/網址/ ID /密碼全部輸入正確。我對不同的搜索文件使用了相同的代碼。它在該文件中完美工作。但是,它不會連接到此.jsp文件中的數據庫。這裏是我的代碼爲search.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!--Import some libraries that have classes that we need -->
<%@ page import="java.io.*,java.util.*,java.sql.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<%
try {
//Create a connection string
String url = "my_data_base_link";
//Load JDBC driver - the interface standardizing the connection procedure. Look at WEB-INF\lib for a mysql connector jar file, otherwise it fails.
Class.forName("com.mysql.jdbc.Driver");
//Create a connection to your DB
Connection con = DriverManager.getConnection(url, "user", "pass");
//Create a SQL statement
Statement stmt = con.createStatement();
String college = request.getParameter("college");
String str = "SELECT College, TUITIONFEE_IN, State FROM my_project1.all WHERE College LIKE " + "'" + college + "%'";
ResultSet result = stmt.executeQuery(str);
con.close();
} catch (Exception ex) {
out.print("insert failed");
}
它在try和catch的catch部分打印出insert失敗。任何幫助表示讚賞。
嘗試打印實際的異常,看看那裏發生的錯誤。 – Aleksandar
@Aleksandar謝謝你這是一個沒有找到錯誤的類。任何想法,我該如何解決這個問題? – AP6
好吧,您沒有提到ClassNotFound異常的類名,但如果是關於驅動程序,請嘗試使用此問題http://stackoverflow.com/questions/1585811/classnotfoundexception-com-mysql-jdbc-driver – Aleksandar