Android使用http協議實現文件的上傳

http協議上傳文件一般最大是2M，比較適合上傳小於兩M的文件

下面是封裝的一個文件類：

1. import java.io.File;
2. import java.io.FileInputStream;
3. import java.io.FileNotFoundException;
4. import java.io.InputStream;
6. /**
7. * 上傳的文件
8. */
9. public class FormFile {
10. /* 上傳文件的數據 */
11. private byte[] data;
12. private InputStream inStream;
13. private File file;
14. /* 文件名稱 */
15. private String filname;
16. /* 請求參數名稱*/
17. private String parameterName;
18. /* 內容類型 */
19. private String contentType = "application/octet-stream";
20. /**
21. *
22. * @param filname 文件名稱
23. * @param data 上傳的文件數據
24. * @param parameterName 參數
25. * @param contentType 內容類型
26. */
27. public FormFile(String filname, byte[] data, String parameterName, String contentType) {
28. this.data = data;
29. this.filname = filname;
30. this.parameterName = parameterName;
31. if(contentType!=null) this.contentType = contentType;
32. }
33. /**
34. *
35. * @param filname 文件名
36. * @param file 上傳的文件
37. * @param parameterName 參數
38. * @param contentType 內容內容類型
39. */
40. public FormFile(String filname, File file, String parameterName, String contentType) {
41. this.filname = filname;
42. this.parameterName = parameterName;
43. this.file = file;
44. try {
45. this.inStream = new FileInputStream(file);
46. } catch (FileNotFoundException e) {
47. e.printStackTrace();
48. }
49. if(contentType!=null) this.contentType = contentType;
50. }
52. public File getFile() {
53. return file;
54. }
56. public InputStream getInStream() {
57. return inStream;
58. }
60. public byte[] getData() {
61. return data;
62. }
64. public String getFilname() {
65. return filname;
66. }
68. public void setFilname(String filname) {
69. this.filname = filname;
70. }
72. public String getParameterName() {
73. return parameterName;
74. }
76. public void setParameterName(String parameterName) {
77. this.parameterName = parameterName;
78. }
80. public String getContentType() {
81. return contentType;
82. }
84. public void setContentType(String contentType) {
85. this.contentType = contentType;
86. }
88. }

1. /**
2. * 直接通過HTTP協議提交數據到服務器,實現如下面表單提交功能:
3. * <FORM METHOD=POST ACTION="http://192.168.0.200:8080/ssi/fileload/test.do" enctype="multipart/form-data">
4. <INPUT TYPE="text" NAME="name">
5. <INPUT TYPE="text" NAME="id">
6. <input type="file" name="imagefile"/>
7. <input type="file" name="zip"/>
8. </FORM>
9. * @param path 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，因為它會指向手機模擬器，你可以使用http://www.xxx.cn或http://192.168.1.10:8080這樣的路徑測試)
10. * @param params 請求參數 key為參數名,value為參數值
11. * @param file 上傳文件
12. */
13. public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception{
14. final String BOUNDARY = "---------------------------7da2137580612"; //數據分隔線
15. final String endline = "--" + BOUNDARY + "--\r\n";//數據結束標志
17. int fileDataLength = 0;
18. for(FormFile uploadFile : files){//得到文件類型數據的總長度
19. StringBuilder fileExplain = new StringBuilder();
20. fileExplain.append("--");
21. fileExplain.append(BOUNDARY);
22. fileExplain.append("\r\n");
23. fileExplain.append("Content-Disposition: form-data;name=\""+ uploadFile.getParameterName()+"\";filename=\""+ uploadFile.getFilname() + "\"\r\n");
24. fileExplain.append("Content-Type: "+ uploadFile.getContentType()+"\r\n\r\n");
25. fileExplain.append("\r\n");
26. fileDataLength += fileExplain.length();
27. if(uploadFile.getInStream()!=null){
28. fileDataLength += uploadFile.getFile().length();
29. }else{
30. fileDataLength += uploadFile.getData().length;
31. }
32. }
33. StringBuilder textEntity = new StringBuilder();
34. for (Map.Entry<String, String> entry : params.entrySet()) {//構造文本類型參數的實體數據
35. textEntity.append("--");
36. textEntity.append(BOUNDARY);
37. textEntity.append("\r\n");
38. textEntity.append("Content-Disposition: form-data; name=\""+ entry.getKey() + "\"\r\n\r\n");
39. textEntity.append(entry.getValue());
40. textEntity.append("\r\n");
41. }
42. //計算傳輸給服務器的實體數據總長度
43. int dataLength = textEntity.toString().getBytes().length + fileDataLength + endline.getBytes().length;
45. URL url = new URL(path);
46. int port = url.getPort()==-1 ? 80 : url.getPort();
47. Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);
48. OutputStream outStream = socket.getOutputStream();
49. //下面完成HTTP請求頭的發送
50. String requestmethod = "POST "+ url.getPath()+" HTTP/1.1\r\n";
51. outStream.write(requestmethod.getBytes());
52. String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n";
53. outStream.write(accept.getBytes());
54. String language = "Accept-Language: zh-CN\r\n";
55. outStream.write(language.getBytes());
56. String contenttype = "Content-Type: multipart/form-data; boundary="+ BOUNDARY+ "\r\n";
57. outStream.write(contenttype.getBytes());
58. String contentlength = "Content-Length: "+ dataLength + "\r\n";
59. outStream.write(contentlength.getBytes());
60. String alive = "Connection: Keep-Alive\r\n";
61. outStream.write(alive.getBytes());
62. String host = "Host: "+ url.getHost() +":"+ port +"\r\n";
63. outStream.write(host.getBytes());
64. //寫完HTTP請求頭後根據HTTP協議再寫一個回車換行
65. outStream.write("\r\n".getBytes());
66. //把所有文本類型的實體數據發送出來
67. outStream.write(textEntity.toString().getBytes());
68. //把所有文件類型的實體數據發送出來
69. for(FormFile uploadFile : files){
70. StringBuilder fileEntity = new StringBuilder();
71. fileEntity.append("--");
72. fileEntity.append(BOUNDARY);
73. fileEntity.append("\r\n");
74. fileEntity.append("Content-Disposition: form-data;name=\""+ uploadFile.getParameterName()+"\";filename=\""+ uploadFile.getFilname() + "\"\r\n");
75. fileEntity.append("Content-Type: "+ uploadFile.getContentType()+"\r\n\r\n");
76. outStream.write(fileEntity.toString().getBytes());
77. if(uploadFile.getInStream()!=null){
78. byte[] buffer = new byte[1024];
79. int len = 0;
80. while((len = uploadFile.getInStream().read(buffer, 0, 1024))!=-1){
81. outStream.write(buffer, 0, len);
82. }
83. uploadFile.getInStream().close();
84. }else{
85. outStream.write(uploadFile.getData(), 0, uploadFile.getData().length);
86. }
87. outStream.write("\r\n".getBytes());
88. }
89. //下面發送數據結束標志，表示數據已經結束
90. outStream.write(endline.getBytes());
92. BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
93. if(reader.readLine().indexOf("200")==-1){//讀取web服務器返回的數據，判斷請求碼是否為200，如果不是200，代表請求失敗
94. return false;
95. }
96. outStream.flush();
97. outStream.close();
98. reader.close();
99. socket.close();
100. return true;
101. }
103. /**
104. * 提交數據到服務器
105. * @param path 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，因為它會指向手機模擬器，你可以使用http://www.xxx.cn或http://192.168.1.10:8080這樣的路徑測試)
106. * @param params 請求參數 key為參數名,value為參數值
107. * @param file 上傳文件
108. */
109. public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception{
110. return post(path, params, new FormFile[]{file});
111. }