AS3类文件 转至 @qwliang
</pre><pre name="code" class="cpp">
</pre><pre name="code" class="cpp">package { import flash.text.*; import flash.utils.*; /** * 用于打包multipart/form-data格式HTTP数据包的类 * @author qwliang */ public class MsMultiPartFormData { public var Boundary:String= "---------------------------7db1851cd1158"; private var fieldName:String="Content-Disposition: form-data; name=\"XXXX\""; private var fieldValue:String= "XXXX"; private var fileField:String="Content-Disposition: form-data; name=\"XXXX\"; filename=\"XXXXXXXX\""; private var fileContentType:String= "Content-Type: XXXX"; private var formData:ByteArray; /** * ... * @author qwliang */ public function MsMultiPartFormData () { formData=new ByteArray(); } /** * 添加一个字段数据到From的数据包中 * @author qwliang */ public function AddFormField( FieldName:String, FieldValue:String):void { var newFieldName:String=fieldName; var newFieldValue:String=fieldValue; newFieldName=newFieldName.replace("XXXX",FieldName); newFieldValue=newFieldValue.replace("XXXX",FieldValue); formData.writeMultiByte( "--"+Boundary+"\r\n","UTF-8"); formData.writeMultiByte( newFieldName+"\r\n\r\n","UTF-8"); formData.writeMultiByte( newFieldValue+"\r\n","UTF-8"); } /** * 添加一个文件二进流数据到Form的数据包中，并指定二进流数据的类型 * @author qwliang */ public function AddFile( FieldName:String, FileName:String,FileContent:ByteArray, ContentType:String):void { var newFileField:String=fileField; var newFileContentType:String=fileContentType; newFileField=newFileField.replace("XXXX",FieldName); newFileField=newFileField.replace("XXXXXXXX",FileName); newFileContentType=newFileContentType.replace("XXXX",ContentType); formData.writeMultiByte( "--"+Boundary+"\r\n","UTF-8"); formData.writeMultiByte( newFileField+"\r\n","UTF-8"); formData.writeMultiByte( newFileContentType+"\r\n\r\n","UTF-8"); formData.writeBytes(FileContent,0,FileContent.length); formData.writeMultiByte("\r\n","UTF-8"); } /** * 添加一个文件二进流数据到Form的数据包中 * @author qwliang */ public function AddStreamFile( FieldName:String, FileName:String,FileContent:ByteArray):void { AddFile( FieldName, FileName, FileContent,"application/octet-stream"); } /** * 把Form中所有的字段与二进制流数据打包成一个完整的From数据包 * @author qwliang */ public function PrepareFormData():void { formData.writeMultiByte( "--"+Boundary+"--","UTF-8"); } /** * 获得From的完整数据 * @author qwliang */ public function GetFormData():ByteArray { return formData; } } }
</pre><pre name="code" class="cpp">
AS调用端代码
<pre name="code" class="cpp">var frm:MsMultiPartFormData = new MsMultiPartFormData();frm.AddFormField('field1','fieldValue');frm.AddStreamFild('FileData','aaa.txt',byteArray);form.PrepareFormData();var req:URLRequest = new URLRequest("http://localhost/fileupload.php");var hdr:URLRequestHeader = new URLRequestHeader("Content-Type","multipart/form-data;boundry="+frm.Boundary);//此处的Content-Type必须为multipart/form-datareq.requestHeaders.push(hdr);req.mehod="POST";req.data = frm.GetFormData();var ldr:URLLoader = new URLLoader(req);