HTTP接受文件的java实现

 1 package TOOLS;
 2 
 3 import java.io.BufferedOutputStream;
 4 import java.io.File;
 5 import java.io.FileOutputStream;
 6 import java.io.IOException;
 7 import java.io.InputStream;
 8 import java.io.OutputStream;
 9 import java.util.HashMap;
10 import java.util.Map;
11 
12 import javax.servlet.http.HttpServletRequest;
13 import javax.servlet.http.HttpServletResponse;
14 import org.apache.commons.fileupload.FileItemIterator;
15 import org.apache.commons.fileupload.FileItemStream;
16 import org.apache.commons.fileupload.FileUploadException;
17 import org.apache.commons.fileupload.servlet.ServletFileUpload;
18 import org.apache.commons.fileupload.util.Streams;
19 
20 public  class HTTPPostAcceptPhoto {
21     
22     Map<String,String> result = new HashMap<String,String>();
23     
24     public Map<String,String> analyze(HttpServletRequest request,
25             HttpServletResponse response,String imageurl) {
26         if (ServletFileUpload.isMultipartContent(request)) {// 判断是否含有文件
27             insertPIC(request,imageurl);
28         } else {
29             txthandle(request, response);
30         }
31         return result;
32     }
33     //写出图片
34     private void insertPIC(HttpServletRequest request,String url) {
35 
36         ServletFileUpload upload = new ServletFileUpload();
37         FileItemIterator iter;
38         try {
39             iter = upload.getItemIterator(request);
40             while (iter.hasNext()) {
41                 FileItemStream item = iter.next();
42                 String name = item.getFieldName();// filename
43                 InputStream stream = item.openStream();
44                 System.out.println("文本" + item.isFormField());
45                 if (item.isFormField()) {// 如果是文本
46                     txt(result,name, Streams.asString(stream,"utf-8"));
47                 } else {
48                     String dir = request.getSession().getServletContext()
49                             .getRealPath(url);
50                     OutputStream fileos = null;
51                     byte[] buff = new byte[1];
52                     File image =new File(dir, item.getName());
53                     System.out.println(" item.getName():"+ item.getName());
54                     fileos = new BufferedOutputStream(new FileOutputStream(
55                             image));
56 
57                     while ((stream.read(buff)) != -1) {
58                         fileos.write(buff);
59                     }
60                     fileos.flush();
61                     fileos.close();
62                     result.put("imagename", item.getName());//返回图片名字
63                 }
64             }
65         } catch (FileUploadException e) {
66             // TODO Auto-generated catch block
67             System.out.println(e);
68         } catch (IOException e) {
69             // TODO Auto-generated catch block
70             System.out.println(e);
71         }
72     }
73     //有文本时的操作
74     private  void txt(Map<String,String> result,String name, String asString){
75         result.put(name, asString);
76     }
77     //纯文本操作
78     public  void txthandle(HttpServletRequest request,
79             HttpServletResponse response){
80         result = request.getParameterMap();
81     }
82     
83 }