MySQL

简单是实现android与php mysql数据库的连接。

这里提供的代码只是为了使你能简单的连接 Android 项目和 PHP，MySQL。你不能把它作为一个标准或者安全编程实践。在生产环境中，理想情况下你需要避免使用任何可能造成潜在注入漏洞的代码(比如 MYSQL 注入)。

涉及的PHP文件

db_connect.php

connect();

}

// destructor

function__destruct() {

// closing db connection

$this->close();

}

/**

* Function to connect with database

*/

functionconnect() {

// import database connection variables

require_once__DIR__ . '/db_config.php';

// Connecting to mysql database

$con= mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD) ordie(mysql_error());

// Selecing database

$db= mysql_select_db(DB_DATABASE) ordie(mysql_error()) ordie(mysql_error());

// returing connection cursor

return$con;

}

/**

* Function to close db connection

*/

functionclose() {

// closing db connection

mysql_close();

}

}

?>

怎么调用 ：当你想连接 MySQl 数据库或者执行某些操作时，可以这样使用 db_connect.php

$db= newDB_CONNECT(); // creating class object(will open database connection)

create_product.php

对于上面的代码，JSON 的返回值会是：

当 POST 参数丢失

{

"success": 0,

"message": "Required field(s) is missing"

}

当 product 成功创建

{

"success": 1,

"message": "Product successfully created."

}

当插入数据时出现错误

{

"success": 0,

"message": "Oops! An error occurred."

}

get_product_details.php

0) {

$result= mysql_fetch_array($result);

$product= array();

$product["pid"] = $result["pid"];

$product["name"] = $result["name"];

$product["price"] = $result["price"];

$product["description"] = $result["description"];

$product["created_at"] = $result["created_at"];

$product["updated_at"] = $result["updated_at"];

// success

$response["success"] = 1;

// user node

$response["product"] = array();

array_push($response["product"], $product);

// echoing JSON response

echojson_encode($response);

} else{

// no product found

$response["success"] = 0;

$response["message"] = "No product found";

// echo no users JSON

echojson_encode($response);

}

} else{

// no product found

$response["success"] = 0;

$response["message"] = "No product found";

// echo no users JSON

echojson_encode($response);

}

} else{

// required field is missing

$response["success"] = 0;

$response["message"] = "Required field(s) is missing";

// echoing JSON response

echojson_encode($response);

}

?>

The json response for the above file will be

When successfully getting product details

{

"success": 1,

"product": [

{

"pid": "1",

"name": "iPHone 4S",

"price": "300.00",

"description": "iPhone 4S white",

"created_at": "2012-04-29 01:41:42",

"updated_at": "0000-00-00 00:00:00"

}

]

}

When no product found with matched pid

{

"success": 0,

"message": "No product found"

}

get_all_products.php

0) {

// looping through all results

// products node

$response["products"] = array();

while($row= mysql_fetch_array($result)) {

// temp user array

$product= array();

$product["pid"] = $row["pid"];

$product["name"] = $row["name"];

$product["price"] = $row["price"];

$product["created_at"] = $row["created_at"];

$product["updated_at"] = $row["updated_at"];

// push single product into final response array

array_push($response["products"], $product);

}

// success

$response["success"] = 1;

// echoing JSON response

echojson_encode($response);

} else{

// no products found

$response["success"] = 0;

$response["message"] = "No products found";

// echo no users JSON

echojson_encode($response);

}

?>

And the JSON response for above code

Listing all Products

{

"products": [

{

"pid": "1",

"name": "iPhone 4S",

"price": "300.00",

"created_at": "2012-04-29 02:04:02",

"updated_at": "0000-00-00 00:00:00"

},

{

"pid": "2",

"name": "Macbook Pro",

"price": "600.00",

"created_at": "2012-04-29 02:04:51",

"updated_at": "0000-00-00 00:00:00"

},

{

"pid": "3",

"name": "Macbook Air",

"price": "800.00",

"created_at": "2012-04-29 02:05:57",

"updated_at": "0000-00-00 00:00:00"

},

{

"pid": "4",

"name": "OS X Lion",

"price": "100.00",

"created_at": "2012-04-29 02:07:14",

"updated_at": "0000-00-00 00:00:00"

}

],

"success": 1

}

When products not found

{

"success": 0,

"message": "No products found"

}

update_product.php

The json reponse of above code, when product is updated successfully

{

"success": 1,

"message": "Product successfully updated."

}

delete_product.php

0) {

// successfully updated

$response["success"] = 1;

$response["message"] = "Product successfully deleted";

// echoing JSON response

echojson_encode($response);

} else{

// no product found

$response["success"] = 0;

$response["message"] = "No product found";

// echo no users JSON

echojson_encode($response);

}

} else{

// required field is missing

$response["success"] = 0;

$response["message"] = "Required field(s) is missing";

// echoing JSON response

echojson_encode($response);

}

?>

When product successfully deleted

{

"success": 1,

"message": "Product successfully deleted"

}

When product not found

{

"success": 0,

"message": "No product found"

}