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冒数据库之大不韪修改自增主键的值以及时间字段

2013-05-12 01:28 176 查看

使用的表见此文：http://blog.csdn.net/weiyanghuadi/article/details/8893259

关键语句：stmt.executeUpdate("update test set id=20,date1='2008-5-12' where id=10");

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>

<%@ page language="java" import="java.sql.*"%>

<!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=utf-8">
<title>Insert title here</title>
</head>
<body>

<%
String driver = "com.mysql.jdbc.Driver";
Class.forName(driver).newInstance();

Connection con = null;
ResultSet rst = null;

Statement stmt = null;

try {
String url = "jdbc:mysql://localhost/tutorial?user=root&password=HuaDi5";

con = DriverManager.getConnection(url);
stmt = con.createStatement();

stmt.executeUpdate("update test set id=20,date1='2008-5-12' where id=10");
rst=stmt.executeQuery("select * from test");
while(rst.next()){
out.println(rst.getDate("date1"));
}

} catch (Exception e) {
out.print("<h3>数据库系统出错</h3>");
System.out.println(e.getMessage());
} finally {
if (rst != null)
try {
rst.close();
} catch (Exception e) {
}

if (stmt != null)
try {
stmt.close();
} catch (Exception e) {
}

if (con != null)
try {
con.close();
} catch (Exception e) {
}
}
%>

</body>
</html>

源代码：http://pan.baidu.com/share/link?shareid=446404&uk=3878681452

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