<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.sql.*"%>
<%@ page import="java.util.*"%>
<!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>用结果集更新数据库中的表</title>
</head>
<body>
<%
Vector vector = new Vector();
Connection con;
Statement sql;
ResultSet rs;
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
} catch (ClassNotFoundException e) {
out.print("<b style='color:red'>ClassNotFoundException</>");
}
try {
String url = "jdbc:sqlserver://127.0.0.1:1433;DatabaseName=pubs";
con = DriverManager.getConnection(url, "sa", "root");
sql = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
rs = sql.executeQuery("select * from students");
out.print("<table border='1'>");
out.print("<tr>");
out.print("<th width='100'>学号");
out.print("<th width='100'>姓名");
out.print("<th width='50'>数学成绩");
out.print("<th width='50'>英语成绩");
out.print("<th width='50'>物理成绩");
out.print("</tr>");
//插入记录操作开始
rs.moveToInsertRow();//将数据表游标移到插入记录位置
rs.updateString("姓名", "赵刚");
rs.updateString("学号", "8888");
rs.updateInt(3, 66);
rs.updateInt(4, 77);
rs.updateInt(5, 88);
rs.insertRow();
//更新返回结果集
rs = sql.executeQuery("select * from students");
while (rs.next()) {
out.print("<tr>");
out.print("<td>" + rs.getString(1) + "</td>");
out.print("<td>" + rs.getString(2) + "</td>");
out.print("<td>" + rs.getInt(3) + "</td>");
out.print("<td>" + rs.getInt(4) + "</td>");
out.print("<td>" + rs.getInt(5) + "</td>");
out.print("</tr>");
}
out.print("</table>");
con.close();
} catch (SQLException e) {
out.print("<b style='color:red'>SQLException</>");
}
%>
</body>
insert into 表名(字段名1，字段名2,……)value (字段值1，字段值2，……)
例如：
insert into ksInfo(考号，姓名，成绩，地址，简历)value(‘200701’,’张大卫’534，’上海欧阳路218弄4-1202’,’’)
实现同样功能的Java程序代码是：
sql = “insert intoksIno(考号，姓名，成绩，地址，简历)”;
sql= = sq1+ “value(‘”+txtNo.getTxt()+’,’”+txtName.getText(0”’,”;
sql = sql+txtScore.getText();
sql=sql+”,’”+txtAddr.getText()+”’,’”+txtResume.getText()+”’)”;
stmt.executeUpdate(sql);
String sql= “select * from ksInfo”;//生成SQL语句
ResultSet rs = stmt.executeQuery(sql);//获取数据表结果集
rs.moveToInsertRow();//将数据表游标移到插入记录位置
rs.updateString(1,’200701’);//向考号字段填入数据
rs.updateString(2,’张大卫’);//向名字字段填入数据
rs.updateInt(3,534);//向成绩字段填入数据
rs.updateString(4,’上海欧阳路218弄4-1202’);//向地址字段填入数据
rs.updateString(5,’’);//向简历字段填入数据
try{rs.insertRow();}catch(Exception e){};//完成插入
sql = “insert into ksInfo(考号，姓名，成绩，地址，简历)value (?,?,?,?,’’)”;
PrepareStatement pStmt = connect.prepareStatement(sql);
pStmt.setString(1,’200701’);//向考号字段填入数据
pStmt. setString (2,’张大卫’);//向名字字段填入数据
pStmt.setInt(3,534);//向成绩字段填入数据
pStmt. setString (4,’上海欧阳路218弄4-1202’);//向地址字段填入数据
pStmt. setString (5,’’);//向简历字段填入数据
pStmt.executeUpdate();
pageEncoding="UTF-8"%>
<%@ page import="java.sql.*"%>
<%@ page import="java.util.*"%>
<!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>用结果集更新数据库中的表</title>
</head>
<body>
<%
Vector vector = new Vector();
Connection con;
Statement sql;
ResultSet rs;
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
} catch (ClassNotFoundException e) {
out.print("<b style='color:red'>ClassNotFoundException</>");
}
try {
String url = "jdbc:sqlserver://127.0.0.1:1433;DatabaseName=pubs";
con = DriverManager.getConnection(url, "sa", "root");
sql = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
rs = sql.executeQuery("select * from students");
out.print("<table border='1'>");
out.print("<tr>");
out.print("<th width='100'>学号");
out.print("<th width='100'>姓名");
out.print("<th width='50'>数学成绩");
out.print("<th width='50'>英语成绩");
out.print("<th width='50'>物理成绩");
out.print("</tr>");
//插入记录操作开始
rs.moveToInsertRow();//将数据表游标移到插入记录位置
rs.updateString("姓名", "赵刚");
rs.updateString("学号", "8888");
rs.updateInt(3, 66);
rs.updateInt(4, 77);
rs.updateInt(5, 88);
rs.insertRow();
//更新返回结果集
rs = sql.executeQuery("select * from students");
while (rs.next()) {
out.print("<tr>");
out.print("<td>" + rs.getString(1) + "</td>");
out.print("<td>" + rs.getString(2) + "</td>");
out.print("<td>" + rs.getInt(3) + "</td>");
out.print("<td>" + rs.getInt(4) + "</td>");
out.print("<td>" + rs.getInt(5) + "</td>");
out.print("</tr>");
}
out.print("</table>");
con.close();
} catch (SQLException e) {
out.print("<b style='color:red'>SQLException</>");
}
%>
</body>
</html>
插入数据表记录有3种方案
一.使用Statement对象
实现插入数据表记录的SQL语句的语法是：insert into 表名(字段名1，字段名2,……)value (字段值1，字段值2，……)
例如：
insert into ksInfo(考号，姓名，成绩，地址，简历)value(‘200701’,’张大卫’534，’上海欧阳路218弄4-1202’,’’)
实现同样功能的Java程序代码是：
sql = “insert intoksIno(考号，姓名，成绩，地址，简历)”;
sql= = sq1+ “value(‘”+txtNo.getTxt()+’,’”+txtName.getText(0”’,”;
sql = sql+txtScore.getText();
sql=sql+”,’”+txtAddr.getText()+”’,’”+txtResume.getText()+”’)”;
stmt.executeUpdate(sql);
二.使用ResultSet对象
使用ResultSet对象的方法moveToInsertRow()将数据表游标移到插入位置，输入数据后，用方法insertRow()插入记录。例如，以下示意代码：String sql= “select * from ksInfo”;//生成SQL语句
ResultSet rs = stmt.executeQuery(sql);//获取数据表结果集
rs.moveToInsertRow();//将数据表游标移到插入记录位置
rs.updateString(1,’200701’);//向考号字段填入数据
rs.updateString(2,’张大卫’);//向名字字段填入数据
rs.updateInt(3,534);//向成绩字段填入数据
rs.updateString(4,’上海欧阳路218弄4-1202’);//向地址字段填入数据
rs.updateString(5,’’);//向简历字段填入数据
try{rs.insertRow();}catch(Exception e){};//完成插入
三.使用PrepareStatement对象
与使用Statement对象的方法类似，只是创建SQL语句时暂时用参数？表示值，然后由SQL语句对象生成PrepareStatement对象，插入时通过设定实际参数，实现记录的更新。示意代码如下：sql = “insert into ksInfo(考号，姓名，成绩，地址，简历)value (?,?,?,?,’’)”;
PrepareStatement pStmt = connect.prepareStatement(sql);
pStmt.setString(1,’200701’);//向考号字段填入数据
pStmt. setString (2,’张大卫’);//向名字字段填入数据
pStmt.setInt(3,534);//向成绩字段填入数据
pStmt. setString (4,’上海欧阳路218弄4-1202’);//向地址字段填入数据
pStmt. setString (5,’’);//向简历字段填入数据
pStmt.executeUpdate();