Question

Namespace: UnityEngine

Description 描述

Helper class to generate form data to post to web servers using the WWW class.

JavaScript:

// Grab a screen shot and upload it to a CGI script.
//获取一个截屏并上传到CGI脚本
// The CGI script must be able to hande form uploads.
//该CGI脚本必须能处理表单上传
 
var screenShotURL= "http://www.my-server.com/cgi-bin/screenshot.pl";
 
// Take a screen shot immediately
//立即截屏
function Start() {
	UploadPNG();
}
 
function UploadPNG() {
	// We should only read the screen after all rendering is complete
	//我们应该只在所有渲染完成后读取屏幕
	yield WaitForEndOfFrame();
 
	// Create a texture the size of the screen, RGB24 format
	//创建屏幕大小的纹理，RGB24格式
	var width = Screen.width;
	var height = Screen.height;
	var tex = new Texture2D( width, height, TextureFormat.RGB24, false );
	// Read screen contents into the texture
	//读取屏幕内存到纹理
	tex.ReadPixels( Rect(0, 0, width, height), 0, 0 );
	tex.Apply();
 
	// Encode texture into PNG
	//编码纹理为PNG
	var bytes = tex.EncodeToPNG();
	Destroy( tex );
 
	// Create a Web Form
	//创建一个Web表单
	var form = new WWWForm();
	form.AddField("frameCount", Time.frameCount.ToString());
	form.AddBinaryData("fileUpload", bytes, "screenShot.png", "image/png");
 
	// Upload to a cgi script
	//上传到一个CGI脚本
	var w = WWW(screenShotURL, form);
	yield w;
	if (w.error != null)
		print(w.error);
	else
		print("Finished Uploading Screenshot");
}

Here is a sample script that retrieves the high scores stored in a table in an SQL database.

这里是一个简单的脚本检索储存在SQL数据库中的高分表。

JavaScript:

// This example assumes that the user has entered his name into a
// variable called name and that score contains the user's current
// score.
//这个例子假设玩家已经输入了他的名称到一个name变量中并且score包含玩家的当前分数
 
var highscore_url = "http://www.my-site.com/highscores.pl";
var playName = "Player 1";
var score = -1;
 
function Start() {
	// Create a form object for sending high score data to the server
	// 创建一个表单来发送高分数据到服务器
	var form = new WWWForm();
	// Assuming the perl script manages high scores for different games
	// 假设perl脚本为不同的游戏管理高分
	form.AddField( "game", "MyGameName" );
	// The name of the player submitting the scores
	// 玩家提交的名称
	form.AddField( "playerName", playName );
	// The score
	// 分数
	form.AddField( "score", score );
 
	// Create a download object
	//创建一个下载对象
	var download = new WWW( highscore_url, form );
 
	// Wait until the download is done
	//等待直到下载完成
	yield download;
 
	if(download.error) {
		print( "Error downloading: " + download.error );
		return;
	} else {
		// show the highscores
		// 显示高分
		Debug.Log(download.text);
	}
}

Here is a sample Perl script that processes the high scores stored in a table in an SQL database.

这里是一个简单的Perl脚本用处理储存在SQL数据库中的高分表。

#!/usr/bin/perl
# The SQL database needs to have a table called highscores
# that looks something like this:
#
#   CREATE TABLE highscores (
#     game varchar(255) NOT NULL,
#     player varchar(255) NOT NULL,
#     score integer NOT NULL
#   );
#
use strict;
use CGI;
use DBI;# Read form data etc.
	my $cgi = new CGI;
 
# The results from the high score script will be in plain text
print $cgi->header("text/plain");
 
my $game = $cgi->param('game');
my $playerName = $cgi->param('playerName');
my $score = $cgi->param('score');
 
exit 0 unless $game; # This parameter is required
 
	# Connect to a database
	my $dbh = DBI->connect( 'DBI:mysql:databasename', 'username', 'password' )
		|| die "Could not connect to database: $DBI::errstr";
 
# Insert the player score if there are any
if( $playerName && $score) {
	$dbh->do( "insert into highscores (game, player, score) values(?,?,?)",
	         undef, $game, $playerName, $score );
}
 
# Fetch the high scores
my $sth = $dbh->prepare(
	'SELECT player, score FROM highscores WHERE game=? ORDER BY score desc LIMIT 10' );
$sth->execute($game);
while (my $r = $sth->fetchrow_arrayref) {
	print join(':',@$r),"\n"
}

Variables 变量

data	(Read Only) The raw data to pass as the POST request body when sending the form. （只读）在发送表单的时，原始数据作为POST请求发送。
headers	(Read Only) Returns the correct request headers for posting the form using the WWW class. （只读）返回一个正确的请求头,用于使用WWW类发送表单。

Constructors 构造器

WWWForm

Creates an empty WWWForm object. 创建一个空的WWWForm对象。

Functions 函数

AddBinaryData	Add binary data to the form. 添加二进制数据到表单。
AddField	Add a simple field to the form. 添加一个简单的字段到表单。