Ajax应用常见的HTTP ContentType设置

Bertha 。 2021-12-17 10:15 288阅读 0赞

原文出处不详，anyway，感谢一下作者先。

ajax开发中, 常遇到下面的几种情况:

1 服务端需要返回一段普通文本给客户端  
2 服务端需要返回一段HTML代码给客户端  
3 服务端需要返回一段XML代码给客户端  
4 服务端需要返回一段javascript代码给客户端  
5 服务端需要返回一段json串给客户端

对于每一种返回类型，规范的做法是要在服务端指定 response的contentType。  
(当然 不指定绝大多数情况下也没什么问题 尤其是返回"非xml"的时候)

代码  
普通文本 : text/plain  
HTML代码 : text/html  
XML代码 : text/xml  
以上三个可以说是毫无争议的, 但是另外两种情况 就要注意一下了.  
javascript 的 contentType 按最标准的写法 应该是 application/javascript.  
而常用的 text/javascript 已经被 rfc定义为废弃的.  
但是，在这里暂时不建议使用 application/javascript  
因为很多老旧浏览器并不支持 application/javascript  
而所有浏览器都支持 text/javascript.  
在标准和广泛的兼容性之间 还是暂且选择后者吧.

json 的 contentType 常见写法有: text/json & text/javascript .  
但是 这个 text/json 其实是根本不存在的, 而 text/javascript 在有些时候客户端处理起来会有歧义.  
对于json的contentType , rfc里定义的标准写法是 :application/json.

在这里毫无疑问 我们应该选择标准写法的 application/json

最后，附一下ContentType清单：

常用的：

**\[java\]** [view plain][] [copy][view plain]

1.  text/plain
2.  text/HTML
3.  text/xml
4.  test/javascript
5.  application/json
6.  image/GIF
7.  image/JPEG

清单：

**\[java\]** [view plain][] [copy][view plain]

1.  ".\*"="application/octet-stream" 
2.  ".001"="application/x-001" 
3.  ".301"="application/x-301" 
4.  ".323"="text/h323" 
5.  ".906"="application/x-906" 
6.  ".907"="drawing/907" 
7.  ".a11"="application/x-a11" 
8.  ".acp"="audio/x-mei-aac" 
9.  ".ai"="application/postscript" 
10. ".aif"="audio/aiff" 
11. ".aifc"="audio/aiff" 
12. ".aiff"="audio/aiff" 
13. ".anv"="application/x-anv" 
14. ".asa"="text/asa" 
15. ".asf"="video/x-ms-asf" 
16. ".asp"="text/asp" 
17. ".asx"="video/x-ms-asf" 
18. ".au"="audio/basic" 
19. ".avi"="video/avi" 
20. ".awf"="application/vnd.adobe.workflow" 
21. ".biz"="text/xml" 
22. ".bmp"="application/x-bmp" 
23. ".bot"="application/x-bot" 
24. ".c4t"="application/x-c4t" 
25. ".c90"="application/x-c90" 
26. ".cal"="application/x-cals" 
27. ".cat"="application/vnd.ms-pki.seccat" 
28. ".cdf"="application/x-netcdf" 
29. ".cdr"="application/x-cdr" 
30. ".cel"="application/x-cel" 
31. ".cer"="application/x-x509-ca-cert" 
32. ".cg4"="application/x-g4" 
33. ".cgm"="application/x-cgm" 
34. ".cit"="application/x-cit" 
35. ".class"="java/\*" 
36. ".cml"="text/xml" 
37. ".cmp"="application/x-cmp" 
38. ".cmx"="application/x-cmx" 
39. ".cot"="application/x-cot" 
40. ".crl"="application/pkix-crl" 
41. ".crt"="application/x-x509-ca-cert" 
42. ".csi"="application/x-csi" 
43. ".css"="text/css" 
44. ".cut"="application/x-cut" 
45. ".dbf"="application/x-dbf" 
46. ".dbm"="application/x-dbm" 
47. ".dbx"="application/x-dbx" 
48. ".dcd"="text/xml" 
49. ".dcx"="application/x-dcx" 
50. ".der"="application/x-x509-ca-cert" 
51. ".dgn"="application/x-dgn" 
52. ".dib"="application/x-dib" 
53. ".dll"="application/x-msdownload" 
54. ".doc"="application/msword" 
55. ".dot"="application/msword" 
56. ".drw"="application/x-drw" 
57. ".dtd"="text/xml" 
58. ".dwf"="Model/vnd.dwf" 
59. ".dwf"="application/x-dwf" 
60. ".dwg"="application/x-dwg" 
61. ".dxb"="application/x-dxb" 
62. ".dxf"="application/x-dxf" 
63. ".edn"="application/vnd.adobe.edn" 
64. ".emf"="application/x-emf" 
65. ".eml"="message/rfc822" 
66. ".ent"="text/xml" 
67. ".epi"="application/x-epi" 
68. ".eps"="application/x-ps" 
69. ".eps"="application/postscript" 
70. ".etd"="application/x-ebx" 
71. ".exe"="application/x-msdownload" 
72. ".fax"="image/fax" 
73. ".fdf"="application/vnd.fdf" 
74. ".fif"="application/fractals" 
75. ".fo"="text/xml" 
76. ".frm"="application/x-frm" 
77. ".g4"="application/x-g4" 
78. ".gbr"="application/x-gbr" 
79. ".gcd"="application/x-gcd" 
80. ".gif"="image/gif" 
81. ".gl2"="application/x-gl2" 
82. ".gp4"="application/x-gp4" 
83. ".hgl"="application/x-hgl" 
84. ".hmr"="application/x-hmr" 
85. ".hpg"="application/x-hpgl" 
86. ".hpl"="application/x-hpl" 
87. ".hqx"="application/mac-binhex40" 
88. ".hrf"="application/x-hrf" 
89. ".hta"="application/hta" 
90. ".htc"="text/x-component" 
91. ".htm"="text/html" 
92. ".html"="text/html" 
93. ".htt"="text/webviewhtml" 
94. ".htx"="text/html" 
95. ".icb"="application/x-icb" 
96. ".ico"="image/x-icon" 
97. ".ico"="application/x-ico" 
98. ".iff"="application/x-iff" 
99. ".ig4"="application/x-g4" 
100. ".igs"="application/x-igs" 
101. ".iii"="application/x-iphone" 
102. ".img"="application/x-img" 
103. ".ins"="application/x-internet-signup" 
104. ".isp"="application/x-internet-signup" 
105. ".IVF"="video/x-ivf" 
106. ".java"="java/\*" 
107. ".jfif"="image/jpeg" 
108. ".jpe"="image/jpeg" 
109. ".jpe"="application/x-jpe" 
110. ".jpeg"="image/jpeg" 
111. ".jpg"="image/jpeg" 
112. ".jpg"="application/x-jpg" 
113. ".js"="application/x-javascript" 
114. ".jsp"="text/html" 
115. ".la1"="audio/x-liquid-file" 
116. ".lar"="application/x-laplayer-reg" 
117. ".latex"="application/x-latex" 
118. ".lavs"="audio/x-liquid-secure" 
119. ".lbm"="application/x-lbm" 
120. ".lmsff"="audio/x-la-lms" 
121. ".ls"="application/x-javascript" 
122. ".ltr"="application/x-ltr" 
123. ".m1v"="video/x-mpeg" 
124. ".m2v"="video/x-mpeg" 
125. ".m3u"="audio/mpegurl" 
126. ".m4e"="video/mpeg4" 
127. ".mac"="application/x-mac" 
128. ".man"="application/x-troff-man" 
129. ".math"="text/xml" 
130. ".mdb"="application/msaccess" 
131. ".mdb"="application/x-mdb" 
132. ".mfp"="application/x-shockwave-flash" 
133. ".mht"="message/rfc822" 
134. ".mhtml"="message/rfc822" 
135. ".mi"="application/x-mi" 
136. ".mid"="audio/mid" 
137. ".midi"="audio/mid" 
138. ".mil"="application/x-mil" 
139. ".mml"="text/xml" 
140. ".mnd"="audio/x-musicnet-download" 
141. ".mns"="audio/x-musicnet-stream" 
142. ".mocha"="application/x-javascript" 
143. ".movie"="video/x-sgi-movie" 
144. ".mp1"="audio/mp1" 
145. ".mp2"="audio/mp2" 
146. ".mp2v"="video/mpeg" 
147. ".mp3"="audio/mp3" 
148. ".mp4"="video/mpeg4" 
149. ".mpa"="video/x-mpg" 
150. ".mpd"="application/vnd.ms-project" 
151. ".mpe"="video/x-mpeg" 
152. ".mpeg"="video/mpg" 
153. ".mpg"="video/mpg" 
154. ".mpga"="audio/rn-mpeg" 
155. ".mpp"="application/vnd.ms-project" 
156. ".mps"="video/x-mpeg" 
157. ".mpt"="application/vnd.ms-project" 
158. ".mpv"="video/mpg" 
159. ".mpv2"="video/mpeg" 
160. ".mpw"="application/vnd.ms-project" 
161. ".mpx"="application/vnd.ms-project" 
162. ".mtx"="text/xml" 
163. ".mxp"="application/x-mmxp" 
164. ".net"="image/pnetvue" 
165. ".nrf"="application/x-nrf" 
166. ".nws"="message/rfc822" 
167. ".odc"="text/x-ms-odc" 
168. ".out"="application/x-out" 
169. ".p10"="application/pkcs10" 
170. ".p12"="application/x-pkcs12" 
171. ".p7b"="application/x-pkcs7-certificates" 
172. ".p7c"="application/pkcs7-mime" 
173. ".p7m"="application/pkcs7-mime" 
174. ".p7r"="application/x-pkcs7-certreqresp" 
175. ".p7s"="application/pkcs7-signature" 
176. ".pc5"="application/x-pc5" 
177. ".pci"="application/x-pci" 
178. ".pcl"="application/x-pcl" 
179. ".pcx"="application/x-pcx" 
180. ".pdf"="application/pdf" 
181. ".pdf"="application/pdf" 
182. ".pdx"="application/vnd.adobe.pdx" 
183. ".pfx"="application/x-pkcs12" 
184. ".pgl"="application/x-pgl" 
185. ".pic"="application/x-pic" 
186. ".pko"="application/vnd.ms-pki.pko" 
187. ".pl"="application/x-perl" 
188. ".plg"="text/html" 
189. ".pls"="audio/scpls" 
190. ".plt"="application/x-plt" 
191. ".png"="image/png" 
192. ".png"="application/x-png" 
193. ".pot"="application/vnd.ms-powerpoint" 
194. ".ppa"="application/vnd.ms-powerpoint" 
195. ".ppm"="application/x-ppm" 
196. ".pps"="application/vnd.ms-powerpoint" 
197. ".ppt"="application/vnd.ms-powerpoint" 
198. ".ppt"="application/x-ppt" 
199. ".pr"="application/x-pr" 
200. ".prf"="application/pics-rules" 
201. ".prn"="application/x-prn" 
202. ".prt"="application/x-prt" 
203. ".ps"="application/x-ps" 
204. ".ps"="application/postscript" 
205. ".ptn"="application/x-ptn" 
206. ".pwz"="application/vnd.ms-powerpoint" 
207. ".r3t"="text/vnd.rn-realtext3d" 
208. ".ra"="audio/vnd.rn-realaudio" 
209. ".ram"="audio/x-pn-realaudio" 
210. ".ras"="application/x-ras" 
211. ".rat"="application/rat-file" 
212. ".rdf"="text/xml" 
213. ".rec"="application/vnd.rn-recording" 
214. ".red"="application/x-red" 
215. ".rgb"="application/x-rgb" 
216. ".rjs"="application/vnd.rn-realsystem-rjs" 
217. ".rjt"="application/vnd.rn-realsystem-rjt" 
218. ".rlc"="application/x-rlc" 
219. ".rle"="application/x-rle" 
220. ".rm"="application/vnd.rn-realmedia" 
221. ".rmf"="application/vnd.adobe.rmf" 
222. ".rmi"="audio/mid" 
223. ".rmj"="application/vnd.rn-realsystem-rmj" 
224. ".rmm"="audio/x-pn-realaudio" 
225. ".rmp"="application/vnd.rn-rn\_music\_package" 
226. ".rms"="application/vnd.rn-realmedia-secure" 
227. ".rmvb"="application/vnd.rn-realmedia-vbr" 
228. ".rmx"="application/vnd.rn-realsystem-rmx" 
229. ".rnx"="application/vnd.rn-realplayer" 
230. ".rp"="image/vnd.rn-realpix" 
231. ".rpm"="audio/x-pn-realaudio-plugin" 
232. ".rsml"="application/vnd.rn-rsml" 
233. ".rt"="text/vnd.rn-realtext" 
234. ".rtf"="application/msword" 
235. ".rtf"="application/x-rtf" 
236. ".rv"="video/vnd.rn-realvideo" 
237. ".sam"="application/x-sam" 
238. ".sat"="application/x-sat" 
239. ".sdp"="application/sdp" 
240. ".sdw"="application/x-sdw" 
241. ".sit"="application/x-stuffit" 
242. ".slb"="application/x-slb" 
243. ".sld"="application/x-sld" 
244. ".slk"="drawing/x-slk" 
245. ".smi"="application/smil" 
246. ".smil"="application/smil" 
247. ".smk"="application/x-smk" 
248. ".snd"="audio/basic" 
249. ".sol"="text/plain" 
250. ".sor"="text/plain" 
251. ".spc"="application/x-pkcs7-certificates" 
252. ".spl"="application/futuresplash" 
253. ".spp"="text/xml" 
254. ".ssm"="application/streamingmedia" 
255. ".sst"="application/vnd.ms-pki.certstore" 
256. ".stl"="application/vnd.ms-pki.stl" 
257. ".stm"="text/html" 
258. ".sty"="application/x-sty" 
259. ".svg"="text/xml" 
260. ".swf"="application/x-shockwave-flash" 
261. ".tdf"="application/x-tdf" 
262. ".tg4"="application/x-tg4" 
263. ".tga"="application/x-tga" 
264. ".tif"="image/tiff" 
265. ".tif"="application/x-tif" 
266. ".tiff"="image/tiff" 
267. ".tld"="text/xml" 
268. ".top"="drawing/x-top" 
269. ".torrent"="application/x-bittorrent" 
270. ".tsd"="text/xml" 
271. ".txt"="text/plain" 
272. ".uin"="application/x-icq" 
273. ".uls"="text/iuls" 
274. ".vcf"="text/x-vcard" 
275. ".vda"="application/x-vda" 
276. ".vdx"="application/vnd.visio" 
277. ".vml"="text/xml" 
278. ".vpg"="application/x-vpeg005" 
279. ".vsd"="application/vnd.visio" 
280. ".vsd"="application/x-vsd" 
281. ".vss"="application/vnd.visio" 
282. ".vst"="application/vnd.visio" 
283. ".vst"="application/x-vst" 
284. ".vsw"="application/vnd.visio" 
285. ".vsx"="application/vnd.visio" 
286. ".vtx"="application/vnd.visio" 
287. ".vxml"="text/xml" 
288. ".wav"="audio/wav" 
289. ".wax"="audio/x-ms-wax" 
290. ".wb1"="application/x-wb1" 
291. ".wb2"="application/x-wb2" 
292. ".wb3"="application/x-wb3" 
293. ".wbmp"="image/vnd.wap.wbmp" 
294. ".wiz"="application/msword" 
295. ".wk3"="application/x-wk3" 
296. ".wk4"="application/x-wk4" 
297. ".wkq"="application/x-wkq" 
298. ".wks"="application/x-wks" 
299. ".wm"="video/x-ms-wm" 
300. ".wma"="audio/x-ms-wma" 
301. ".wmd"="application/x-ms-wmd" 
302. ".wmf"="application/x-wmf" 
303. ".wml"="text/vnd.wap.wml" 
304. ".wmv"="video/x-ms-wmv" 
305. ".wmx"="video/x-ms-wmx" 
306. ".wmz"="application/x-ms-wmz" 
307. ".wp6"="application/x-wp6" 
308. ".wpd"="application/x-wpd" 
309. ".wpg"="application/x-wpg" 
310. ".wpl"="application/vnd.ms-wpl" 
311. ".wq1"="application/x-wq1" 
312. ".wr1"="application/x-wr1" 
313. ".wri"="application/x-wri" 
314. ".wrk"="application/x-wrk" 
315. ".ws"="application/x-ws" 
316. ".ws2"="application/x-ws" 
317. ".wsc"="text/scriptlet" 
318. ".wsdl"="text/xml" 
319. ".wvx"="video/x-ms-wvx" 
320. ".xdp"="application/vnd.adobe.xdp" 
321. ".xdr"="text/xml" 
322. ".xfd"="application/vnd.adobe.xfd" 
323. ".xfdf"="application/vnd.adobe.xfdf" 
324. ".xhtml"="text/html" 
325. ".xls"="application/vnd.ms-excel" 
326. ".xls"="application/x-xls" 
327. ".xlw"="application/x-xlw" 
328. ".xml"="text/xml" 
329. ".xpl"="audio/scpls" 
330. ".xq"="text/xml" 
331. ".xql"="text/xml" 
332. ".xquery"="text/xml" 
333. ".xsd"="text/xml" 
334. ".xsl"="text/xml" 
335. ".xslt"="text/xml" 
336. ".xwd"="application/x-xwd" 
337. ".x\_b"="application/x-x\_b" 
338. ".x\_t"="application/x-x\_t"

转载于:https://www.cnblogs.com/zcm123/p/4446376.html

[view plain]: http://blog.csdn.net/oldcrane/article/details/3850244