1. import java.io.BufferedInputStream;
2. import java.io.ByteArrayOutputStream;
3. import java.io.DataOutputStream;
4. import java.io.File;
5. import java.io.FileInputStream;
6. import java.io.InputStream;
7. import java.net.URL;
8. import java.net.URLConnection;
9. import java.util.ArrayList;
10. import java.util.Collection;
11. import java.util.HashMap;
12. import java.util.Iterator;
13. import java.util.Map;
14.
15. public class HttpRequestMaker{
16. public HttpRequestMaker( String url ) throws Exception {
17. m_Url = new URL( url );
18. }
19.
20. public final static String boundary = "---------------------------7d71b526e00e4";
21. public final static String prefix = "--";
22. public final static String newLine = "\r\n";
23.
24. public final static String fileContentType = "Content-Type: application/octet-stream\r\n\r\n";
25. public final static String fileContentDisposition = "Content-Disposition: form-data; name=\"%name\"; filename=\"%fileName\"\r\n";
26. public final static String paramContentDisposition = "Content-Disposition: form-data; name=\"%name\"\r\n\r\n";
27.
28. private URL m_Url = null;
29. private URLConnection uc = null;
30. private Map m_fileMap = new HashMap();
31. private Map m_paraMap = new HashMap();
32. long m_FileTotalSize = 0;
33.
34. public void AddFile(String name, String filename){
35. File file = new File( filename );
36. if( file.exists() ){
37. m_FileTotalSize += file.length();
38. m_fileMap.put(name, file);
39. }
40. }
41.
42. public void AddFile(String name, File file){
43. if( file.exists() ){
44. m_FileTotalSize += file.length();
45. m_fileMap.put(name, file);
46. }
47. }
48.
49. public void AddParam( String name, String value){
50. m_FileTotalSize += value.length();
51. m_paraMap.put(name, value);
52. }
53.
54. public void Upload() throws Exception {
55. try{
56. uc = m_Url.openConnection();
57. uc.setDoOutput( true );
58. uc.setRequestProperty( "Accept", "*/*" );
59. uc.setRequestProperty( "Accept-Language", "ja" );
60. uc.setRequestProperty( "Content-Type", "multipart/form-data; boundary=" + boundary);
61. uc.setRequestProperty( "Accept-Encoding", "gzip, deflate" );
62. uc.setRequestProperty( "Connection", "Keep-Alive" );
63. uc.setRequestProperty( "Cache-Control", "no-cache" );
64.
65. DataOutputStream dos = new DataOutputStream( uc.getOutputStream() );
66.
67. for(Iterator iterator = m_fileMap.keySet().iterator(); iterator.hasNext();){
68. String key = (String)iterator.next();
69. File file = (File)m_fileMap.get(key);
70. String fcd = fileContentDisposition.replaceAll("%name", key);
71. fcd = fcd.replaceAll("%fileName", file.getName());
72.
73. dos.writeBytes(prefix + boundary + newLine);
74. dos.writeBytes(fcd);
75. dos.writeBytes(fileContentType);
76.
77. FileInputStream fstram = new FileInputStream(file);
78. byte[] buf = new byte[4000];
79. int len = 0;
80. while (len != -1) {
81. len = fstram.read(buf);
82. if(len>0){
83. dos.write(buf, 0, len);
84. }
85. }
86. dos.writeBytes(newLine);
87. fstram.close();
88. }
89.
90. for(Iterator iterator = m_paraMap.keySet().iterator();iterator.hasNext();){
91. String key = (String)iterator.next();
92. String value = (String)m_paraMap.get(key);
93.
94. String fcd = paramContentDisposition.replaceAll("%name", key);
95. dos.writeBytes(prefix + boundary + newLine);
96. dos.writeBytes(fcd);
97. dos.writeBytes(value);
98. dos.writeBytes(newLine);
99. }
100.
101. dos.writeBytes(prefix + boundary + prefix + newLine);
102.
103. dos.close();
104. }
105. catch(Exception e){
106. e.printStackTrace();
107. throw e;
108. }
109. }
110.
111. public InputStream getInputStream() throws Exception{
112. if(uc==null){
113. return null;
114. }
115. return uc.getInputStream();
116. }
117.
118. public static void main(String[] args) throws Exception {
119.
120. HttpFileUpoad httpRequestMaker= new HttpFileUpoad("http://192.168.1.117:8080/test");
121. httpRequestMaker.AddFile("file0", "c:/work/test0.xml");
122. httpRequestMaker.AddFile("file1", "c:/work/test1.xml");
123. httpRequestMaker.AddParam("p1", "testvalue");
124. httpRequestMaker.Upload();
125. InputStream is = httpRequestMaker.getInputStream(); //
126. BufferedInputStream bis = new BufferedInputStream(is);
127. ByteArrayOutputStream baos = new ByteArrayOutputStream();
128. int i = 0;
129. while((i = bis.read()) != -1){
130. baos.write(i);
131. }
132. System.out.println(baos.toString());
133.
134. bis.close();
135. is.close();
136. }
137.
138. /**
139. *
140. * @param timeout
141. */
142. public void setReadTimeout(int timeout){
143. if(uc == null){
144. return;
145. }
146. uc.setReadTimeout(timeout);
147. }
148. }
相关资源：Java 面经手册·小傅哥(公众号：bugstack虫洞栈).pdf
