android中模拟http协议表单上传

快来打我* 2022-05-13 06:10 223阅读 0赞

转自：http://helloandroid.iteye.com/blog/1183853

利用ie浏览器插件httpwatch查看form表单上传时的数据封装格式，然后照着这数据格式自己一步一步封装  
  
![点击查看原始大小图片][6fff3f74-b521-3ce7-9064-79049bc35521.jpg]  
  
![3ec4be92-3780-36b0-ae18-ae12e353f954.jpg][]  
  
![afd61265-e591-3f99-95db-258e0b2d8762.jpg][]

Java代码 ![收藏代码][icon_star.png]

1.  **package**com.android.cist.network.form;
2.  
3.  **import**java.io.DataOutputStream;
4.  **import**java.io.InputStream;
5.  **import**java.io.UnsupportedEncodingException;
6.  **import**java.net.HttpURLConnection;
7.  **import**java.net.URL;
8.  **import**java.net.URLEncoder;
9.  **import**java.util.Iterator;
10. **import**java.util.Map;
11. **import**java.util.Set;
12. 
13. **public****class**HttpFormUtil\{ 
14. 
15. **public****static**Stringpost(StringactionUrl,Map<String,String>params,FormFile\[\]files)\{ 
16. **try**\{ 
17. StringenterNewline="\\r\\n";
18. Stringfix="--";
19. Stringboundary="\#\#\#\#\#\#";
20. StringMULTIPART\_FORM\_DATA="multipart/form-data";
21. 
22. URLurl=**new**URL(actionUrl);
23. 
24. HttpURLConnectioncon=(HttpURLConnection)url.openConnection();
25. con.setDoInput(**true**);
26. con.setDoOutput(**true**);
27. con.setUseCaches(**false**);
28. con.setRequestMethod("POST");
29. con.setRequestProperty("Connection","Keep-Alive");
30. con.setRequestProperty("Accept","image/gif,image/x-xbitmap,image/jpeg,image/pjpeg,application/x-shockwave-flash,application/msword,application/vnd.ms-excel,application/vnd.ms-powerpoint,\*/\*");
31. con.setRequestProperty("Accept-Encoding","gzip,deflate");
32. con.setRequestProperty("Charset","UTF-8");
33. con.setRequestProperty("Content-Type",MULTIPART\_FORM\_DATA+";boundary="\+boundary);
34. 
35. DataOutputStreamds=**new**DataOutputStream(con.getOutputStream());
36. Set<String>keySet=params.keySet();
37. Iterator<String>it=keySet.iterator();
38. 
39. **while**(it.hasNext())\{ 
40. Stringkey=it.next();
41. Stringvalue=params.get(key);
42. ds.writeBytes(fix+boundary+enterNewline);
43. ds.writeBytes("Content-Disposition:form-data;"\+"name=\\""\+key+"\\""\+enterNewline);
44. ds.writeBytes(enterNewline);
45. //ds.write(value.getBytes("UTF-8"));
46. ds.writeBytes(value);//如果有中文乱码，保存改用上面的ds.writeBytes(enterNewline);那句代码
47. ds.writeBytes(enterNewline);
48. \}
49. 
50. **if**(files!=**null**&&files.length>0)\{ 
51. ds.writeBytes(fix+boundary+enterNewline);
52. ds.writeBytes("Content-Disposition:form-data;"\+"name=\\""\+files\[0\].getFormname()+"\\""\+";filename=\\""\+files\[0\].getFilname()+"\\""\+enterNewline);
53. ds.writeBytes(enterNewline);
54. ds.write(files\[0\].getData());
55. ds.writeBytes(enterNewline);
56. \}
57. 
58. ds.writeBytes(fix+boundary+fix+enterNewline);
59. ds.flush();
60. 
61. InputStreamis=con.getInputStream();
62. **int**ch;
63. StringBufferb=**new**StringBuffer();
64. 
65. **while**((ch=is.read())!=-1)\{ 
66. b.append((**char**)ch);
67. \}
68. ds.close();
69. 
70. **return**b.toString().trim();
71. 
72. \}**catch**(Exceptione)\{ 
73. **throw****new**RuntimeException(e);
74. \}
75. \}
76. 
77. **public****static**Stringencode(Stringurl)\{ 
78. **try**\{ 
79. **return**URLEncoder.encode(url,"UTF-8");
80. \}**catch**(UnsupportedEncodingExceptionex)\{ 
81. **return**url;
82. \}
83. \}
84. 
85. \}

[6fff3f74-b521-3ce7-9064-79049bc35521.jpg]: /images/20220513/c60f96fd85d84d4198cd6d8d68698acd.png
[3ec4be92-3780-36b0-ae18-ae12e353f954.jpg]: /images/20220513/7102bc76932e42a2b350abf03e97cba8.png
[afd61265-e591-3f99-95db-258e0b2d8762.jpg]: /images/20220513/b94deed8f06b47f0b294785620c0f05a.png
[icon_star.png]: /images/20220513/ee5031b0c5dd45cd961e812e100d0cae.png