<html>
- 5月 20 週五 201615:16
5/20javascript random電腦自動隨機變數
<html>
- 5月 13 週五 201614:49
5/13
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
- 5月 06 週五 201615:26
第12周
(3/5章)
<html>
<head>
<title>Form</title>
<script>
function check1(){
var radio1=document.getElementsByName("v1");
var radio2=document.getElementsByName("v2");
- 4月 22 週五 201615:08
第十週 4月22日
http://pclevin.blogspot.tw/2014/12/android-studio-hello-world.html
- 4月 15 週五 201615:34
Hello! World!
隨著行動裝置的興起，智慧型手機(SmartPhone)成為人們生活中不可缺的東西
不論你是要聊天社交、查詢資料、玩遊戲、聽音樂
都可以在手機上一鍵搞定，APP讓生活變得更便利
今天就來介紹ANDROID的程式開發入門
一步一步的帶各位寫第一支APP程式
要開發ANDROID手機程式
硬體方面，你需要一台電腦和一支Android手機
手機最好是HTC或SONY這種大廠牌，才不會有找不到驅動程式(Driver)的困擾
購買手機前，可以到手機商的官網，看看有沒有提供驅動程式下載
軟體方面：你需要下載3樣東西
1. JAVA開發工具(Java Development kit - JDK)
2. Eclipse的JAVA開發環境(Eclipse IDE for Java Developers)
3. Android 開發工具(stand-alone Android SDK)
※ 各程式下載最新版即可
※ 有時候安裝不成功，不是你的問題，是程式的問題，請等官方解決
1. JAVA開發工具(Java Development kit - JDK)
http://www.oracle.com/technetwork/java/javase/downloads/index.html
JAVA開發工具
下載JAVA Platform(JDK)後安裝
點選接受條款(Accept License Agreement)後
選擇符合你的作業系統來下載
開始寫第一個APP
點選右上角File → New → Project
完成之後
我們會看到畫面上有一個Hello world!的字樣
這就是我們目前的程式顯示的畫面
http://readandplay.pixnet.net/blog/post/140001110-%E7%AC%AC%E4%B8%80%E6%94%AFandroid-app%E7%A8%8B%E5%BC%8F%E6%95%99%E5%AD%B8
package haha;
- 3月 25 週五 201615:23
eclipse連接到mysql
http://blog.yslifes.com/archives/918 <-這個網址 按照步驟做
package db;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class jdbcmysql {
private Connection con = null; //Database objects
//連接object
private Statement stat = null;
//執行,傳入之sql為完整字串
private ResultSet rs = null;
//結果集
private PreparedStatement pst = null;
//執行,傳入之sql為預儲之字申,需要傳入變數之位置
//先利用?來做標示
private String dropdbSQL = "DROP TABLE User ";
private String createdbSQL = "CREATE TABLE User (" +
" id INTEGER " +
" , name VARCHAR(20) " +
" , passwd VARCHAR(20))";
private String insertdbSQL = "insert into User(id,name,passwd) " +
"select ifNULL(max(id),0)+1,?,? FROM User";
private String selectSQL = "select * from User ";
public jdbcmysql()
{
try {
Class.forName("com.mysql.jdbc.Driver");
//註冊driver
con = DriverManager.getConnection(
"jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=Big5",
"","");
//取得connection
//jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=Big5
//localhost是主機名,test是database名
//useUnicode=true&characterEncoding=Big5使用的編碼
}
catch(ClassNotFoundException e)
{
System.out.println("DriverClassNotFound :"+e.toString());
}//有可能會產生sqlexception
catch(SQLException x) {
System.out.println("Exception :"+x.toString());
}
}
//建立table的方式
//可以看看Statement的使用方式
public void createTable()
{
try
{
stat = con.createStatement();
stat.executeUpdate(createdbSQL);
}
catch(SQLException e)
{
System.out.println("CreateDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//新增資料
//可以看看PrepareStatement的使用方式
public void insertTable( String name,String passwd)
{
try
{
pst = con.prepareStatement(insertdbSQL);
pst.setString(1, name);
pst.setString(2, passwd);
pst.executeUpdate();
}
catch(SQLException e)
{
System.out.println("InsertDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//刪除Table,
//跟建立table很像
public void dropTable()
{
try
{
stat = con.createStatement();
stat.executeUpdate(dropdbSQL);
}
catch(SQLException e)
{
System.out.println("DropDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//查詢資料
//可以看看回傳結果集及取得資料方式
public void SelectTable()
{
try
{
stat = con.createStatement();
rs = stat.executeQuery(selectSQL);
System.out.println("ID\t\tName\t\tPASSWORD");
while(rs.next())
{
System.out.println(rs.getInt("id")+"\t\t"+
rs.getString("name")+"\t\t"+rs.getString("passwd"));
}
}
catch(SQLException e)
{
System.out.println("DropDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//完整使用完資料庫後,記得要關閉所有Object
//否則在等待Timeout時,可能會有Connection poor的狀況
private void Close()
{
try
{
if(rs!=null)
{
rs.close();
rs = null;
}
if(stat!=null)
{
stat.close();
stat = null;
}
if(pst!=null)
{
pst.close();
pst = null;
}
}
catch(SQLException e)
{
System.out.println("Close Exception :" + e.toString());
}
}
public static void main(String[] args)
{
//測看看是否正常
jdbcmysql test = new jdbcmysql();
test.dropTable();
test.createTable();
test.insertTable("yku", "12356");
test.insertTable("yku2", "7890");
test.SelectTable();
}
}
package db;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class jdbcmysql {
private Connection con = null; //Database objects
//連接object
private Statement stat = null;
//執行,傳入之sql為完整字串
private ResultSet rs = null;
//結果集
private PreparedStatement pst = null;
//執行,傳入之sql為預儲之字申,需要傳入變數之位置
//先利用?來做標示
private String dropdbSQL = "DROP TABLE User ";
private String createdbSQL = "CREATE TABLE User (" +
" id INTEGER " +
" , name VARCHAR(20) " +
" , passwd VARCHAR(20))";
private String insertdbSQL = "insert into User(id,name,passwd) " +
"select ifNULL(max(id),0)+1,?,? FROM User";
private String selectSQL = "select * from User ";
public jdbcmysql()
{
try {
Class.forName("com.mysql.jdbc.Driver");
//註冊driver
con = DriverManager.getConnection(
"jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=Big5",
"","");
//取得connection
//jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=Big5
//localhost是主機名,test是database名
//useUnicode=true&characterEncoding=Big5使用的編碼
}
catch(ClassNotFoundException e)
{
System.out.println("DriverClassNotFound :"+e.toString());
}//有可能會產生sqlexception
catch(SQLException x) {
System.out.println("Exception :"+x.toString());
}
}
//建立table的方式
//可以看看Statement的使用方式
public void createTable()
{
try
{
stat = con.createStatement();
stat.executeUpdate(createdbSQL);
}
catch(SQLException e)
{
System.out.println("CreateDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//新增資料
//可以看看PrepareStatement的使用方式
public void insertTable( String name,String passwd)
{
try
{
pst = con.prepareStatement(insertdbSQL);
pst.setString(1, name);
pst.setString(2, passwd);
pst.executeUpdate();
}
catch(SQLException e)
{
System.out.println("InsertDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//刪除Table,
//跟建立table很像
public void dropTable()
{
try
{
stat = con.createStatement();
stat.executeUpdate(dropdbSQL);
}
catch(SQLException e)
{
System.out.println("DropDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//查詢資料
//可以看看回傳結果集及取得資料方式
public void SelectTable()
{
try
{
stat = con.createStatement();
rs = stat.executeQuery(selectSQL);
System.out.println("ID\t\tName\t\tPASSWORD");
while(rs.next())
{
System.out.println(rs.getInt("id")+"\t\t"+
rs.getString("name")+"\t\t"+rs.getString("passwd"));
}
}
catch(SQLException e)
{
System.out.println("DropDB Exception :" + e.toString());
}
finally
{
Close();
}
}
//完整使用完資料庫後,記得要關閉所有Object
//否則在等待Timeout時,可能會有Connection poor的狀況
private void Close()
{
try
{
if(rs!=null)
{
rs.close();
rs = null;
}
if(stat!=null)
{
stat.close();
stat = null;
}
if(pst!=null)
{
pst.close();
pst = null;
}
}
catch(SQLException e)
{
System.out.println("Close Exception :" + e.toString());
}
}
public static void main(String[] args)
{
//測看看是否正常
jdbcmysql test = new jdbcmysql();
test.dropTable();
test.createTable();
test.insertTable("yku", "12356");
test.insertTable("yku2", "7890");
test.SelectTable();
}
}
- 3月 18 週五 201615:24
匯出資料庫到網頁
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM `user`";
$result = $conn->query($sql);
if ($result != null) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id:" . $row["name"]. $row["passwd"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM `user`";
$result = $conn->query($sql);
if ($result != null) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id:" . $row["name"]. $row["passwd"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>
