上傳參數：httpservice封裝了 urlrequest
上傳文件：所有上傳都是用POST Content type為：multipart/form-data (如同html表單的設置一樣)
var request:URLRequest=new URLRequest("http://localhost:8080/webproject12/servlet/upload");
myFileRef.upload(request);
可以加一個filter class 當提交成功時候 綁定一個變量到session
filter過濾所有要訪問JSP生成XML的請求 如果session沒有這個變量 拒絕訪問(方式根據鏈接訪問JSP)
提交文件用import flash.net.FileReference;
MXML部分：
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="horizontal">
<mx:Script>
<![CDATA[
/**
* 一個HttpService 與servlet通信的例子
* 發送文件 和上傳表單 先文件上傳成功后繼續傳送表單
* 發送文件的成功由事件監聽
* 發送表單后會返回由JSP生成的動態XML文件
* */
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
import flash.net.URLRequest;
import flash.net.FileReference;
import flash.events.Event;
import flash.events.IOErrorEvent;
private var myFileRef:FileReference=null ;
private var request:URLRequest=null;
private function doFileBrowse():void{//點擊瀏覽文件選項
myFileRef = new FileReference();
myFileRef.addEventListener(Event.SELECT,doSelect);
myFileRef.browse();
}
private function doSelect(evt:Event):void{//為文件文本框賦值
imageName.text=myFileRef.name.toString();
}
private function doUpForm():void{//點擊最后提交按鈕
request=new URLRequest("http://localhost:8080/webproject12/servlet/upload");
myFileRef.upload(request); //圖片文件的提交
myFileRef.addEventListener(IOErrorEvent.IO_ERROR,errorHandler);//文件失敗上傳監聽事件
myFileRef.addEventListener(Event.COMPLETE,doFileUploadComplete);//文件成功上傳監聽事件
}
private function errorHandler(evt:IOErrorEvent):void{
trace("上傳失敗，檢查網絡");
}
private function doFileUploadComplete(evt:Event):void{
trace("文件上傳成功 繼續傳送表單");
up.send();//繼續提交文字表單
}
private function doResult(event:ResultEvent):void{
trace(event.result);
}
private function doFault(event:FaultEvent):void{
trace("表單發送失敗");
}
]]>
</mx:Script>
<mx:HTTPService id="up" url="http://localhost:8080/webproject12/flextest"
result="doResult(event)" fault="doFault(event)"
method="POST" resultFormat="xml" >
<mx:request xmlns="">
<username>
{username.text}
</username>
<imageName>
{imageName.text}
</imageName>
</mx:request>
</mx:HTTPService>
<mx:VBox height="100%" width="100%">
<mx:Form>
<mx:FormHeading label=" test load"/>
<mx:FormItem label=" username:">
<mx:TextInput id="username"/>
</mx:FormItem>
<mx:FormItem label="Image Name" direction="horizontal">
<mx:TextInput id="imageName" editable="false"/>
<mx:Button click="doFileBrowse()" label="Browse"/>
</mx:FormItem>
<mx:FormItem>
<mx:Button label="提交" click="doUpForm()"/>
</mx:FormItem>
</mx:Form>
</mx:VBox>
</mx:Application>
servlet部分：
upload。java 不需要回饋 文件接收器
1.
要設置好初始化參數 給與一個上傳附件的路徑
通過：
private ServletContext sc =config.getServletContext();
sc.getRealPath("/");得到應用真是根目錄
private String savePath = config.getInitParameter("savePath");// 保存文件夾
sc.getRealPath("/")+savePath 是保存目錄
2.
用了COMMONS FILEUPLOAD組件 和commons IO 組件
package org.zizi.servlet;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadServelt extends HttpServlet {
private static final long serialVersionUID = -850828778548588525L;
private ServletContext sc;// application 上傳組件要用
private String savePath;// 保存路徑
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
// 開始組建的使用
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
try {
List list = upload.parseRequest(request);// 解析傳過來的內容 返回LIST
Iterator it = list.iterator();// 對LIST進行枚舉
while (it.hasNext()) {
FileItem item = (FileItem) it.next();
// 判斷是文本信息還是對象（文件）
if (item.isFormField()) {
// 如果是文本信息返回TRUE
System.out.println("參數" + item.getFieldName() + ":"
+ item.getString("UTF-8"));
// 注意輸出值的時候要注意加上編碼
} else {
if (item.getName() != null && !item.getName().equals("")) {
System.out.println("上傳文件的大小：" + item.getSize());
System.out.println("上傳文件的類型：" + item.getContentType());
System.out.println("上傳文件的名稱：" + item.getName());
System.out.println(sc.getRealPath("/") + savePath);
// 保存在服務器硬盤中
File tempFile = new File(item.getName());// 臨時FILE對象
// 此時有路徑的名字
// TEMPFILE主要為了獲取文件的單純文件名
File file = new File(sc.getRealPath("/") + savePath,
"kdj"+(tempFile.getName()).substring((tempFile.getName()).length()-4,(tempFile.getName()).length()));
//在這里可以更改名字
//用subString 的方法截取后綴 就可以加上自定義名稱放在第二個參數
// 這個FILE是真正要保存的文件
item.write(file);// 寫入服務器
// 返回結果
request.setAttribute("upload.message", "上傳成功");
} else {
request.setAttribute("upload.message", "沒有選擇上傳文件");
}
}
}
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
request.setAttribute("upload.message", "上傳沒成功");
}
request.getRequestDispatcher("/uploadResult.jsp").forward(request, response);
}
public void init(ServletConfig config) {
//實現初始化文件 獲取初始化參數 路徑 和獲取 一個全局服務器對象 備用
savePath = config.getInitParameter("savePath");// 初始化綁定參數 表明保存在哪
sc = config.getServletContext();
}
}
接收表單的servlet：flextest。java
package org.zizi.test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class FLEXTest extends HttpServlet {
private static final long serialVersionUID = -154781975203117748L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
request.setCharacterEncoding("utf-8");
String n=request.getParameter("username");
String m=request.getParameter("imageName");
request.setAttribute("pupload.message1", n);
request.setAttribute("pupload.message2", m);
request.getRequestDispatcher("/uploadResult2.jsp").forward(request, response);
//FLEX會接收 這個轉向的JSP頁面動態生成的XML文件
}
}
web。xml
<servlet>
<servlet-name>UploadServelt</servlet-name>
<servlet-class>org.zizi.servlet.UploadServelt</servlet-class>
<init-param>
<param-name>savePath</param-name>
<param-value>uploads</param-value>
</init-param>
</servlet>
<servlet>
<servlet-name>SendMailServlet</servlet-name>
<servlet-class>org.zizi.sendMail.SendMailServlet</servlet-class>
</servlet>
uploadResult2.jsp
<%@page language="java" contentType="text/xml;charset=utf-8" pageEncoding="UTF-8"%><?xml version="1.0" encoding="utf-8"?>
<cat>
<dog name="${requestScope['pupload.message2']}">
</dog>
<dog name="${requestScope['pupload.message1']}">
</dog>
</cat>
結果：
servlet 輸出：
參數Filename:安博之淚.jpg
上傳文件的大小：124849
上傳文件的類型：application/octet-stream
上傳文件的名稱：安博之淚.jpg
E:\tomcat6\webapps\webproject12\uploads
參數Upload:Submit Query
flex 輸出：
[SWF] E:\workspaceforFlex\forwritingshop\bin-debug\test.swf - 926,895 bytes after decompression
文件上傳成功 繼續傳送表單
<cat><dog name="39254E3A-CC97-4FFE-8051-D152BF2A9E1F.jpg" /><dog name="zizi" /></cat>
總結，完全可以全部傳送去一個SERVLET----UPLOAD，但是需要保存request的參數 可以建一個HashMap<String,String>()，然后保存參數。備以后存入數據庫使用。
但是，需要調用兩次servlet。。。。因為Httpservice的contenttype沒有MULtiple/form-data。。。。？？