<%@ page contentType="text/html; charset=gb2312" %>
<%@ page language="java" %>
<%@ page import="com.mysql.jdbc.Driver" %>
<%@ page import="java.sql.*" %>
<%
out.print("Matrix Word Cloud English Learning
");
//驱动程序名
String driverName="com.mysql.jdbc.Driver";
//数据库用户名
String userName="root";
//密码
String userPasswd="123456";
//数据库名
String dbName="english2022";
//表名
String tableName="map_enword";
//联结字符串
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection=DriverManager.getConnection(url);
Statement statement = connection.createStatement();
for(int i=0;i<26;i++){
int aa=Integer.valueOf('a')+i;
char cha = (char) aa;
//out.print(aa);
out.print(cha);
//String sql="SELECT * FROM "+tableName+" where english like 'a%' "+"order by english";
String sql="SELECT * FROM "+tableName+" where english like '"+cha+"%' "+"order by english";
ResultSet rs = statement.executeQuery(sql);
// 输出每一个数据值
String str;
int j=0;
while(rs.next()) {
str=(rs.getString(2)).substring(0,1);
out.print(str+" ");
j++;
}
out.print(" "+j+"
");
rs.close();
}
statement.close();
connection.close();
%>