mimmime type imagee/jpeg是什么图片
点击联系发帖人
时间：2015-12-22 13:54
在 Android 上通过模拟 HTTP multipart/form-data 请求协议信息实现图片上传 - 实践 + 参考 - ITeye技术网站
博客分类：
通过构造基于 HTTP 协议的传输内容实现图片自动上传到服务器功能 。如果自己编码构造 HTTP 协议，那么编写的代码质量肯定不高，建议模仿
\mime\ClientMultipartFormPost.java 来实现，并通过源码来进一步理解如何优雅高效地构造 HTTP 协议传输内容。
自己构造 HTTP
协议传输内容的想法，从何而来呢？灵感启迪于这篇博文“
”，以前从未想过通过抓取
HTTP 请求数据格式，根据协议自己构造数据来实现数据提交。哎，Out 了。因为 Apache HttpClient
框架就是通过此方式来实现的，以前从未注意到，看来以后要多多向前人学习啊！结果是：阅读了此框架的源码后，才知道自己编写的代码和人家相比真不是一个档次的。现在已经下定决心了，多读开源框架代码，不但可以熟悉相关业务流程，而且还可以学到设计模式在实际业务需求中的应用，更重要的是领悟其中的思想。业务流程、实践能力、框架思想，一举三得，何乐而不为呢。^_^
test.html 部分源码：
&form action="Your_Action_Url
" method="post" enctype="multipart/form-data
" name="form1" id="form1"&
&label for="upload_file"&&/label&
&input type="file" name="upload_file" id="upload_file
&input type="submit" name="action" id="action
" value="upload
通过 HttpWatch 查看抓取到的包数据格式：
下面将分别通过按照 HttpWatch 抓取下来的协议格式内容构造传输内容实现文件上传功能和基于 HttpClient 框架实现文件上传功能。
项目配置目录Your_Project/config
，相关文件
actionUrl.properties 文件内容：
Your_Action_Url
formDataParams.properties 文件内容（对应 HTML Form 属性内容）：
imageParams.properties 文件内容（这里文件路径已配置死了，不好！建议在程序中动态设置，即通过传入相关参数实现。）：
upload_file
=images/roewe.jpg
MIMETypes.properties 文件内容（参考自
jpeg:image/jpeg
jpg:image/jpeg
png:image/png
gif:image/gif
》代码的基础上，通过进一步改进得到如下代码（Java、Android 都可以 run）：
* 文件名称：UploadImage.java
* 版权信息：Apache License, Version 2.0
* 功能描述：实现图片文件上传。
* 创建日期：
* 作者：Bert Lee
* 修改历史：
public class UploadImage {
String multipart_form_data = "multipart/form-data";
String twoHyphens = "--";
String boundary = "****************fD4fH3gL0hK7aI6";
// 数据分隔符
String lineEnd = System.getProperty("line.separator");
// The value is "\r\n" in Windows.
* 上传图片内容，格式请参考HTTP 协议格式。
* 人人网Photos.upload中的”程序调用“http://wiki./wiki/Photos.upload#.E7.A8.8B.E5.BA.8F.E8.B0.83.E7.94.A8
* 对其格式解释的非常清晰。
* 格式如下所示：
* --****************fD4fH3hK7aI6
* Content-Disposition: form- name="upload_file"; filename="apple.jpg"
* Content-Type: image/jpeg
* 这儿是文件的内容，二进制流的形式
private void addImageContent(Image[] files, DataOutputStream output) {
for(Image file : files) {
StringBuilder split = new StringBuilder();
split.append(twoHyphens + boundary + lineEnd);
split.append("Content-Disposition: form- name=\"" + file.getFormName() + "\"; filename=\"" + file.getFileName() + "\"" + lineEnd);
split.append("Content-Type: " + file.getContentType() + lineEnd);
split.append(lineEnd);
// 发送图片数据
output.writeBytes(split.toString());
output.write(file.getData(), 0, file.getData().length);
output.writeBytes(lineEnd);
} catch (IOException e) {
throw new RuntimeException(e);
* 构建表单字段内容，格式请参考HTTP 协议格式（用FireBug可以抓取到相关数据）。(以便上传表单相对应的参数值)
* 格式如下所示：
* --****************fD4fH3hK7aI6
* Content-Disposition: form- name="action"
* // 一空行，必须有
private void addFormField(Set&Map.Entry&Object,Object&& params, DataOutputStream output) {
StringBuilder sb = new StringBuilder();
for(Map.Entry&Object, Object& param : params) {
sb.append(twoHyphens + boundary + lineEnd);
sb.append("Content-Disposition: form- name=\"" + param.getKey() + "\"" + lineEnd);
sb.append(lineEnd);
sb.append(param.getValue() + lineEnd);
output.writeBytes(sb.toString());// 发送表单字段数据
} catch (IOException e) {
throw new RuntimeException(e);
* 直接通过 HTTP 协议提交数据到服务器，实现表单提交功能。
* @param actionUrl 上传路径
* @param params 请求参数key为参数名，value为参数值
* @param files 上传文件信息
* @return 返回请求结果
public String post(String actionUrl, Set&Map.Entry&Object,Object&& params, Image[] files) {
HttpURLConnection conn =
DataOutputStream output =
BufferedReader input =
URL url = new URL(actionUrl);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(120000);
conn.setDoInput(true);
// 允许输入
conn.setDoOutput(true);
// 允许输出
conn.setUseCaches(false);
// 不使用Cache
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "keep-alive");
conn.setRequestProperty("Content-Type", multipart_form_data + "; boundary=" + boundary);
conn.connect();
output = new DataOutputStream(conn.getOutputStream());
addImageContent(files, output);
// 添加图片内容
addFormField(params, output);
// 添加表单字段内容
output.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);// 数据结束标志
output.flush();
int code = conn.getResponseCode();
if(code != 200) {
throw new RuntimeException("请求‘" + actionUrl +"’失败！");
input = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder response = new StringBuilder();
String oneL
while((oneLine = input.readLine()) != null) {
response.append(oneLine + lineEnd);
return response.toString();
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
// 统一释放资源
if(output != null) {
output.close();
if(input != null) {
input.close();
} catch (IOException e) {
throw new RuntimeException(e);
if(conn != null) {
conn.disconnect();
public static void main(String[] args) {
String response = "";
BufferedReader in = new BufferedReader(new FileReader("config/actionUrl.properties"));
String actionUrl = in.readLine();
// 读取表单对应的字段名称及其值
Properties formDataParams = new Properties();
formDataParams.load(new FileInputStream(new File("config/formDataParams.properties")));
Set&Map.Entry&Object,Object&& params = formDataParams.entrySet();
// 读取图片所对应的表单字段名称及图片路径
Properties imageParams = new Properties();
imageParams.load(new FileInputStream(new File("config/imageParams.properties")));
Set&Map.Entry&Object,Object&& images = imageParams.entrySet();
Image[] files = new Image[images.size()];
int i = 0;
for(Map.Entry&Object,Object& image : images) {
Image file = new Image(image.getValue().toString(), image.getKey().toString());
files[i++] =
Image file = new Image("images/apple.jpg", "upload_file");
Image[] files = new Image[0];
files[0] =
response = new UploadImage().post(actionUrl, params, files);
System.out.println("返回结果：" + response);
} catch (IOException e) {
e.printStackTrace();
2. 基于 HttpClient 框架实现文件上传，实例代码如下：
* 文件名称：ClientMultipartFormPost.java
* 版权信息：Apache License, Version 2.0
* 功能描述：通过 HttpClient 4.1.1 实现文件上传。
* 创建日期：
* 作者：Bert Lee
* 修改历史：
public class ClientMultipartFormPost {
* 直接通过 HttpMime's MultipartEntity 提交数据到服务器，实现表单提交功能。
* @return Post 请求所返回的内容
public static String filePost() {
HttpClient httpclient = new DefaultHttpClient();
BufferedReader in = new BufferedReader(new FileReader("config/actionUrl.properties"));
String actionU
actionUrl = in.readLine();
HttpPost httppost = new HttpPost(actionUrl);
// 通过阅读源码可知，要想实现图片上传功能，必须将 MultipartEntity 的模式设置为 BROWSER_COMPATIBLE 。
MultipartEntity multiEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
MultipartEntity multiEntity = new MultipartEntity();
// 读取图片的 MIME Type 类型集
Properties mimeTypes = new Properties();
mimeTypes.load(new FileInputStream(new File("config/MIMETypes.properties")));
// 构造图片数据
Properties imageParams = new Properties();
imageParams.load(new FileInputStream(new File("config/imageParams.properties")));
String fileT
for(Map.Entry&Object,Object& image : imageParams.entrySet()) {
String path = image.getValue().toString();
fileType = path.substring(path.lastIndexOf(".") + 1);
FileBody binaryContent = new FileBody(new File(path), mimeTypes.get(fileType).toString());
FileBody binaryContent = new FileBody(new File(path));
multiEntity.addPart(image.getKey().toString(), binaryContent);
// 构造表单参数数据
Properties formDataParams = new Properties();
formDataParams.load(new FileInputStream(new File("config/formDataParams.properties")));
for(Entry&Object, Object& param : formDataParams.entrySet()) {
multiEntity.addPart(param.getKey().toString(), new StringBody(param.getValue().toString()));
httppost.setEntity(multiEntity);
Out.println("executing request " + httppost.getRequestLine());
HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();
Out.println("-------------------");
Out.println(response.getStatusLine());
if(resEntity != null) {
String returnContent = EntityUtils.toString(resEntity);
EntityUtils.consume(resEntity);
return returnC // 返回页面内容
} catch (IOException e) {
e.printStackTrace();
} finally {
// 释放资源
httpclient.getConnectionManager().shutdown();
public static void main(String[] args) {
Out.println("Response content: " + ClientMultipartFormPost.filePost());
参考资料：
下载次数: 563
浏览 13533
浏览: 25800 次
来自: 杭州基本信息（imageInfo） | 七牛云存储
图片基本信息（imageInfo）
图片基本信息包括图片格式、图片大小、色彩模型。
在图片下载URL后附加imageInfo指示符（区分大小写），即可获取JSON格式的图片基本信息。
请求报文格式
GET &ImageDownloadURI&?imageInfo HTTP/1.1
Host: &ImageDownloadHost&
注意：当您下载私有空间的资源时，ImageDownloadURI的生成方法请参考七牛的。
资源为/resource/gogopher.jpg，处理样式为imageInfo。
#构造下载URL
DownloadUrl = '/resource/gogopher.jpg?imageInfo'
RealDownloadUrl = '/resource/gogopher.jpg?imageInfo&e=×××&token=MY_ACCESS_KEY:×××'
下载服务器域名，可为七牛三级域名或自定义二级域名，参考
响应报文格式
HTTP/1.1 200 OK
Content-Type: application/json
Cache-Control: no-store
&&ImageType
&ImageWidth
&ImageHeight
&colorModel&:
&&ImageColorModel
&frameNumber&:
&ImageFrameNumber
Content-Type
MIME类型，固定为application/json
Cache-Control
缓存控制，固定为no-store，不缓存
■ 如果请求成功，返回包含如下内容的JSON字符串（已格式化，便于阅读）：
&&ImageType
&ImageWidth
&ImageHeight
&colorModel&:
&&ImageColorModel
&frameNumber&:
&ImageFrameNumber
图片类型，如png、jpeg、gif、bmp等。
图片宽度，单位：像素（px）。
图片高度，单位：像素（px）。
colorModel
彩色空间，如palette16、ycbcr等。
frameNumber
帧数，gif 图片会返回此项。
■ 如果请求失败，返回包含如下内容的JSON字符串（已格式化，便于阅读）：
HTTP状态码，请参考
与HTTP状态码对应的消息文本
响应状态码
HTTP状态码
请求报文格式错误
资源不存在
服务端操作失败。如遇此错误，请将完整错误信息（包括所有HTTP响应头部）给我们。
获取图片基本信息：
在Web浏览器中输入以下图片地址
/resource/gogopher.jpg?imageInfo
返回结果（内容经过格式化以便阅读）
&colorModel&:
内部参考资源
为您找到了如下结果，感谢您对七牛的支持。
技术/购买咨询
400-808-9176
开发者支持当前访客身份：游客 [
当前位置：
发布于 日 11时,
根据自定义的目标图高宽,&按目标图高宽比裁剪、缩放源图.传入参数:$source_path&string&源图路径$target_width&integer&目标图宽度$target_height&integer&目标图高度源图支持MIMETYPE:&image/gif,&image/jpeg,&image/png.
代码片段(1)
1.&[代码][PHP]代码&&&&
function imagecropper($source_path, $target_width, $target_height)
$source_info
= getimagesize($source_path);
$source_width
= $source_info[0];
$source_height = $source_info[1];
$source_mime
= $source_info['mime'];
$source_ratio
= $source_height / $source_
$target_ratio
= $target_height / $target_
// 源图过高
if ($source_ratio & $target_ratio)
$cropped_width
= $source_
$cropped_height = $source_width * $target_
$source_x = 0;
$source_y = ($source_height - $cropped_height) / 2;
// 源图过宽
elseif ($source_ratio & $target_ratio)
$cropped_width
= $source_height / $target_
$cropped_height = $source_
$source_x = ($source_width - $cropped_width) / 2;
$source_y = 0;
// 源图适中
$cropped_width
= $source_
$cropped_height = $source_
$source_x = 0;
$source_y = 0;
switch ($source_mime)
case 'image/gif':
$source_image = imagecreatefromgif($source_path);
case 'image/jpeg':
$source_image = imagecreatefromjpeg($source_path);
case 'image/png':
$source_image = imagecreatefrompng($source_path);
$target_image
= imagecreatetruecolor($target_width, $target_height);
$cropped_image = imagecreatetruecolor($cropped_width, $cropped_height);
imagecopy($cropped_image, $source_image, 0, 0, $source_x, $source_y, $cropped_width, $cropped_height);
imagecopyresampled($target_image, $cropped_image, 0, 0, 0, 0, $target_width, $target_height, $cropped_width, $cropped_height);
header('Content-Type: image/jpeg');
imagejpeg($target_image);
imagedestroy($source_image);
imagedestroy($target_image);
imagedestroy($cropped_image);
开源中国-程序员在线工具：
相关的代码(105)
25回/7113阅
1回/1255阅
开源从代码分享开始
sidbusy的其它代码MIME 参考手册
MIME 参考手册
MIME (Multipurpose Internet Mail Extensions) 是描述消息内容类型的因特网标准。
MIME 消息能包含文本、图像、音频、视频以及其他应用程序专用的数据。
官方的 MIME 信息是由 Internet Engineering Task Force (IETF) 在下面的文档中提供的：
Standard for
ARPA Internet text messages
MIME Part 1: Format of Internet Message Bodies
MIME Part 2: Media Types
MIME Part 3: Header Extensions for Non-ASCII Text
MIME Part 4: Registration Procedures
MIME Part 5: Conformance Criteria and Examples
不同的应用程序支持不同的 MIME 类型。
下面的参考手册是由 Microsoft Internet Information Server version 5 所支持的 MIME 类型列表。
按照内容类型排列的 Mime 类型列表
类型/子类型
application/envoy
application/fractals
application/futuresplash
application/hta
application/internet-property-stream
application/mac-binhex40
application/msword
application/msword
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/oda
application/olescript
application/pdf
application/pics-rules
application/pkcs10
application/pkix-crl
application/postscript
application/postscript
application/postscript
application/rtf
application/set-payment-initiation
application/set-registration-initiation
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-outlook
application/vnd.ms-pkicertstore
application/vnd.ms-pkiseccat
application/vnd.ms-pkistl
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-project
application/vnd.ms-works
application/vnd.ms-works
application/vnd.ms-works
application/vnd.ms-works
application/winhlp
application/x-bcpio
application/x-cdf
application/x-compress
application/x-compressed
application/x-cpio
application/x-csh
application/x-director
application/x-director
application/x-director
application/x-dvi
application/x-gtar
application/x-gzip
application/x-hdf
application/x-internet-signup
application/x-internet-signup
application/x-iphone
application/x-javascript
application/x-latex
application/x-msaccess
application/x-mscardfile
application/x-msclip
application/x-msdownload
application/x-msmediaview
application/x-msmediaview
application/x-msmediaview
application/x-msmetafile
application/x-msmoney
application/x-mspublisher
application/x-msschedule
application/x-msterminal
application/x-mswrite
application/x-netcdf
application/x-netcdf
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-pkcs12
application/x-pkcs12
application/x-pkcs7-certificates
application/x-pkcs7-certificates
application/x-pkcs7-certreqresp
application/x-pkcs7-mime
application/x-pkcs7-mime
application/x-pkcs7-signature
application/x-sh
application/x-shar
application/x-shockwave-flash
application/x-stuffit
application/x-sv4cpio
application/x-sv4crc
application/x-tar
application/x-tcl
application/x-tex
application/x-texinfo
application/x-texinfo
application/x-troff
application/x-troff
application/x-troff
application/x-troff-man
application/x-troff-me
application/x-troff-ms
application/x-ustar
application/x-wais-source
application/x-x509-ca-cert
application/x-x509-ca-cert
application/x-x509-ca-cert
application/ynd.ms-pkipko
application/zip
audio/basic
audio/basic
audio/mpeg
audio/x-aiff
audio/x-aiff
audio/x-aiff
audio/x-mpegurl
audio/x-pn-realaudio
audio/x-pn-realaudio
audio/x-wav
image/cis-cod
image/jpeg
image/jpeg
image/jpeg
image/pipeg
image/svg+xml
image/tiff
image/tiff
image/x-cmu-raster
image/x-cmx
image/x-icon
image/x-portable-anymap
image/x-portable-bitmap
image/x-portable-graymap
image/x-portable-pixmap
image/x-rgb
image/x-xbitmap
image/x-xpixmap
image/x-xwindowdump
message/rfc822
message/rfc822
message/rfc822
text/plain
text/plain
text/plain
text/plain
text/richtext
text/scriptlet
text/tab-separated-values
text/webviewhtml
text/x-component
text/x-setext
text/x-vcard
video/mpeg
video/mpeg
video/mpeg
video/mpeg
video/mpeg
video/mpeg
video/quicktime
video/quicktime
video/x-la-asf
video/x-la-asf
video/x-ms-asf
video/x-ms-asf
video/x-ms-asf
video/x-msvideo
video/x-sgi-movie
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
按照文件扩展名排列的 Mime 类型列表
类型/子类型
application/octet-stream
application/internet-property-stream
application/postscript
audio/x-aiff
audio/x-aiff
audio/x-aiff
video/x-ms-asf
video/x-ms-asf
video/x-ms-asf
audio/basic
video/x-msvideo
application/olescript
text/plain
application/x-bcpio
application/octet-stream
text/plain
application/vnd.ms-pkiseccat
application/x-cdf
application/x-x509-ca-cert
application/octet-stream
application/x-msclip
image/x-cmx
image/cis-cod
application/x-cpio
application/x-mscardfile
application/pkix-crl
application/x-x509-ca-cert
application/x-csh
application/x-director
application/x-x509-ca-cert
application/x-director
application/x-msdownload
application/octet-stream
application/msword
application/msword
application/x-dvi
application/x-director
application/postscript
text/x-setext
application/envoy
application/octet-stream
application/fractals
x-world/x-vrml
application/x-gtar
application/x-gzip
text/plain
application/x-hdf
application/winhlp
application/mac-binhex40
application/hta
text/x-component
text/webviewhtml
image/x-icon
application/x-iphone
application/x-internet-signup
application/x-internet-signup
image/pipeg
image/jpeg
image/jpeg
image/jpeg
application/x-javascript
application/x-latex
application/octet-stream
video/x-la-asf
video/x-la-asf
application/octet-stream
application/x-msmediaview
application/x-msmediaview
audio/x-mpegurl
application/x-troff-man
application/x-msaccess
application/x-troff-me
message/rfc822
message/rfc822
application/x-msmoney
video/quicktime
video/x-sgi-movie
video/mpeg
audio/mpeg
video/mpeg
video/mpeg
video/mpeg
video/mpeg
application/vnd.ms-project
video/mpeg
application/x-troff-ms
application/x-msmediaview
message/rfc822
application/oda
application/pkcs10
application/x-pkcs12
application/x-pkcs7-certificates
application/x-pkcs7-mime
application/x-pkcs7-mime
application/x-pkcs7-certreqresp
application/x-pkcs7-signature
image/x-portable-bitmap
application/pdf
application/x-pkcs12
image/x-portable-graymap
application/ynd.ms-pkipko
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
image/x-portable-anymap
application/vnd.ms-powerpoint
image/x-portable-pixmap
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/pics-rules
application/postscript
application/x-mspublisher
video/quicktime
audio/x-pn-realaudio
audio/x-pn-realaudio
image/x-cmu-raster
image/x-rgb
application/x-troff
application/rtf
text/richtext
application/x-msschedule
text/scriptlet
application/set-payment-initiation
application/set-registration-initiation
application/x-sh
application/x-shar
application/x-stuffit
audio/basic
application/x-pkcs7-certificates
application/futuresplash
application/x-wais-source
application/vnd.ms-pkicertstore
application/vnd.ms-pkistl
image/svg+xml
application/x-sv4cpio
application/x-sv4crc
application/x-shockwave-flash
application/x-troff
application/x-tar
application/x-tcl
application/x-tex
application/x-texinfo
application/x-texinfo
application/x-compressed
image/tiff
image/tiff
application/x-troff
application/x-msterminal
text/tab-separated-values
text/plain
application/x-ustar
text/x-vcard
x-world/x-vrml
audio/x-wav
application/vnd.ms-works
application/vnd.ms-works
application/vnd.ms-works
application/x-msmetafile
application/vnd.ms-works
application/x-mswrite
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
image/x-xbitmap
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
x-world/x-vrml
image/x-xpixmap
image/x-xwindowdump
application/x-compress
application/zip}
博客分类：
通过构造基于 HTTP 协议的传输内容实现图片自动上传到服务器功能 。如果自己编码构造 HTTP 协议，那么编写的代码质量肯定不高，建议模仿
\mime\ClientMultipartFormPost.java 来实现，并通过源码来进一步理解如何优雅高效地构造 HTTP 协议传输内容。
自己构造 HTTP
协议传输内容的想法，从何而来呢？灵感启迪于这篇博文“
”，以前从未想过通过抓取
HTTP 请求数据格式，根据协议自己构造数据来实现数据提交。哎，Out 了。因为 Apache HttpClient
框架就是通过此方式来实现的，以前从未注意到，看来以后要多多向前人学习啊！结果是：阅读了此框架的源码后，才知道自己编写的代码和人家相比真不是一个档次的。现在已经下定决心了，多读开源框架代码，不但可以熟悉相关业务流程，而且还可以学到设计模式在实际业务需求中的应用，更重要的是领悟其中的思想。业务流程、实践能力、框架思想，一举三得，何乐而不为呢。^_^
test.html 部分源码：
&form action="Your_Action_Url
" method="post" enctype="multipart/form-data
" name="form1" id="form1"&
&label for="upload_file"&&/label&
&input type="file" name="upload_file" id="upload_file
&input type="submit" name="action" id="action
" value="upload
通过 HttpWatch 查看抓取到的包数据格式：
下面将分别通过按照 HttpWatch 抓取下来的协议格式内容构造传输内容实现文件上传功能和基于 HttpClient 框架实现文件上传功能。
项目配置目录Your_Project/config
，相关文件
actionUrl.properties 文件内容：
Your_Action_Url
formDataParams.properties 文件内容（对应 HTML Form 属性内容）：
imageParams.properties 文件内容（这里文件路径已配置死了，不好！建议在程序中动态设置，即通过传入相关参数实现。）：
upload_file
=images/roewe.jpg
MIMETypes.properties 文件内容（参考自
jpeg:image/jpeg
jpg:image/jpeg
png:image/png
gif:image/gif
》代码的基础上，通过进一步改进得到如下代码（Java、Android 都可以 run）：
* 文件名称：UploadImage.java
* 版权信息：Apache License, Version 2.0
* 功能描述：实现图片文件上传。
* 创建日期：
* 作者：Bert Lee
* 修改历史：
public class UploadImage {
String multipart_form_data = "multipart/form-data";
String twoHyphens = "--";
String boundary = "****************fD4fH3gL0hK7aI6";
// 数据分隔符
String lineEnd = System.getProperty("line.separator");
// The value is "\r\n" in Windows.
* 上传图片内容，格式请参考HTTP 协议格式。
* 人人网Photos.upload中的”程序调用“http://wiki./wiki/Photos.upload#.E7.A8.8B.E5.BA.8F.E8.B0.83.E7.94.A8
* 对其格式解释的非常清晰。
* 格式如下所示：
* --****************fD4fH3hK7aI6
* Content-Disposition: form- name="upload_file"; filename="apple.jpg"
* Content-Type: image/jpeg
* 这儿是文件的内容，二进制流的形式
private void addImageContent(Image[] files, DataOutputStream output) {
for(Image file : files) {
StringBuilder split = new StringBuilder();
split.append(twoHyphens + boundary + lineEnd);
split.append("Content-Disposition: form- name=\"" + file.getFormName() + "\"; filename=\"" + file.getFileName() + "\"" + lineEnd);
split.append("Content-Type: " + file.getContentType() + lineEnd);
split.append(lineEnd);
// 发送图片数据
output.writeBytes(split.toString());
output.write(file.getData(), 0, file.getData().length);
output.writeBytes(lineEnd);
} catch (IOException e) {
throw new RuntimeException(e);
* 构建表单字段内容，格式请参考HTTP 协议格式（用FireBug可以抓取到相关数据）。(以便上传表单相对应的参数值)
* 格式如下所示：
* --****************fD4fH3hK7aI6
* Content-Disposition: form- name="action"
* // 一空行，必须有
private void addFormField(Set&Map.Entry&Object,Object&& params, DataOutputStream output) {
StringBuilder sb = new StringBuilder();
for(Map.Entry&Object, Object& param : params) {
sb.append(twoHyphens + boundary + lineEnd);
sb.append("Content-Disposition: form- name=\"" + param.getKey() + "\"" + lineEnd);
sb.append(lineEnd);
sb.append(param.getValue() + lineEnd);
output.writeBytes(sb.toString());// 发送表单字段数据
} catch (IOException e) {
throw new RuntimeException(e);
* 直接通过 HTTP 协议提交数据到服务器，实现表单提交功能。
* @param actionUrl 上传路径
* @param params 请求参数key为参数名，value为参数值
* @param files 上传文件信息
* @return 返回请求结果
public String post(String actionUrl, Set&Map.Entry&Object,Object&& params, Image[] files) {
HttpURLConnection conn =
DataOutputStream output =
BufferedReader input =
URL url = new URL(actionUrl);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(120000);
conn.setDoInput(true);
// 允许输入
conn.setDoOutput(true);
// 允许输出
conn.setUseCaches(false);
// 不使用Cache
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "keep-alive");
conn.setRequestProperty("Content-Type", multipart_form_data + "; boundary=" + boundary);
conn.connect();
output = new DataOutputStream(conn.getOutputStream());
addImageContent(files, output);
// 添加图片内容
addFormField(params, output);
// 添加表单字段内容
output.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);// 数据结束标志
output.flush();
int code = conn.getResponseCode();
if(code != 200) {
throw new RuntimeException("请求‘" + actionUrl +"’失败！");
input = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder response = new StringBuilder();
String oneL
while((oneLine = input.readLine()) != null) {
response.append(oneLine + lineEnd);
return response.toString();
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
// 统一释放资源
if(output != null) {
output.close();
if(input != null) {
input.close();
} catch (IOException e) {
throw new RuntimeException(e);
if(conn != null) {
conn.disconnect();
public static void main(String[] args) {
String response = "";
BufferedReader in = new BufferedReader(new FileReader("config/actionUrl.properties"));
String actionUrl = in.readLine();
// 读取表单对应的字段名称及其值
Properties formDataParams = new Properties();
formDataParams.load(new FileInputStream(new File("config/formDataParams.properties")));
Set&Map.Entry&Object,Object&& params = formDataParams.entrySet();
// 读取图片所对应的表单字段名称及图片路径
Properties imageParams = new Properties();
imageParams.load(new FileInputStream(new File("config/imageParams.properties")));
Set&Map.Entry&Object,Object&& images = imageParams.entrySet();
Image[] files = new Image[images.size()];
int i = 0;
for(Map.Entry&Object,Object& image : images) {
Image file = new Image(image.getValue().toString(), image.getKey().toString());
files[i++] =
Image file = new Image("images/apple.jpg", "upload_file");
Image[] files = new Image[0];
files[0] =
response = new UploadImage().post(actionUrl, params, files);
System.out.println("返回结果：" + response);
} catch (IOException e) {
e.printStackTrace();
2. 基于 HttpClient 框架实现文件上传，实例代码如下：
* 文件名称：ClientMultipartFormPost.java
* 版权信息：Apache License, Version 2.0
* 功能描述：通过 HttpClient 4.1.1 实现文件上传。
* 创建日期：
* 作者：Bert Lee
* 修改历史：
public class ClientMultipartFormPost {
* 直接通过 HttpMime's MultipartEntity 提交数据到服务器，实现表单提交功能。
* @return Post 请求所返回的内容
public static String filePost() {
HttpClient httpclient = new DefaultHttpClient();
BufferedReader in = new BufferedReader(new FileReader("config/actionUrl.properties"));
String actionU
actionUrl = in.readLine();
HttpPost httppost = new HttpPost(actionUrl);
// 通过阅读源码可知，要想实现图片上传功能，必须将 MultipartEntity 的模式设置为 BROWSER_COMPATIBLE 。
MultipartEntity multiEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
MultipartEntity multiEntity = new MultipartEntity();
// 读取图片的 MIME Type 类型集
Properties mimeTypes = new Properties();
mimeTypes.load(new FileInputStream(new File("config/MIMETypes.properties")));
// 构造图片数据
Properties imageParams = new Properties();
imageParams.load(new FileInputStream(new File("config/imageParams.properties")));
String fileT
for(Map.Entry&Object,Object& image : imageParams.entrySet()) {
String path = image.getValue().toString();
fileType = path.substring(path.lastIndexOf(".") + 1);
FileBody binaryContent = new FileBody(new File(path), mimeTypes.get(fileType).toString());
FileBody binaryContent = new FileBody(new File(path));
multiEntity.addPart(image.getKey().toString(), binaryContent);
// 构造表单参数数据
Properties formDataParams = new Properties();
formDataParams.load(new FileInputStream(new File("config/formDataParams.properties")));
for(Entry&Object, Object& param : formDataParams.entrySet()) {
multiEntity.addPart(param.getKey().toString(), new StringBody(param.getValue().toString()));
httppost.setEntity(multiEntity);
Out.println("executing request " + httppost.getRequestLine());
HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();
Out.println("-------------------");
Out.println(response.getStatusLine());
if(resEntity != null) {
String returnContent = EntityUtils.toString(resEntity);
EntityUtils.consume(resEntity);
return returnC // 返回页面内容
} catch (IOException e) {
e.printStackTrace();
} finally {
// 释放资源
httpclient.getConnectionManager().shutdown();
public static void main(String[] args) {
Out.println("Response content: " + ClientMultipartFormPost.filePost());
参考资料：
下载次数: 563
浏览 13533
浏览: 25800 次
来自: 杭州基本信息（imageInfo） | 七牛云存储
图片基本信息（imageInfo）
图片基本信息包括图片格式、图片大小、色彩模型。
在图片下载URL后附加imageInfo指示符（区分大小写），即可获取JSON格式的图片基本信息。
请求报文格式
GET &ImageDownloadURI&?imageInfo HTTP/1.1
Host: &ImageDownloadHost&
注意：当您下载私有空间的资源时，ImageDownloadURI的生成方法请参考七牛的。
资源为/resource/gogopher.jpg，处理样式为imageInfo。
#构造下载URL
DownloadUrl = '/resource/gogopher.jpg?imageInfo'
RealDownloadUrl = '/resource/gogopher.jpg?imageInfo&e=×××&token=MY_ACCESS_KEY:×××'
下载服务器域名，可为七牛三级域名或自定义二级域名，参考
响应报文格式
HTTP/1.1 200 OK
Content-Type: application/json
Cache-Control: no-store
&&ImageType
&ImageWidth
&ImageHeight
&colorModel&:
&&ImageColorModel
&frameNumber&:
&ImageFrameNumber
Content-Type
MIME类型，固定为application/json
Cache-Control
缓存控制，固定为no-store，不缓存
■ 如果请求成功，返回包含如下内容的JSON字符串（已格式化，便于阅读）：
&&ImageType
&ImageWidth
&ImageHeight
&colorModel&:
&&ImageColorModel
&frameNumber&:
&ImageFrameNumber
图片类型，如png、jpeg、gif、bmp等。
图片宽度，单位：像素（px）。
图片高度，单位：像素（px）。
colorModel
彩色空间，如palette16、ycbcr等。
frameNumber
帧数，gif 图片会返回此项。
■ 如果请求失败，返回包含如下内容的JSON字符串（已格式化，便于阅读）：
HTTP状态码，请参考
与HTTP状态码对应的消息文本
响应状态码
HTTP状态码
请求报文格式错误
资源不存在
服务端操作失败。如遇此错误，请将完整错误信息（包括所有HTTP响应头部）给我们。
获取图片基本信息：
在Web浏览器中输入以下图片地址
/resource/gogopher.jpg?imageInfo
返回结果（内容经过格式化以便阅读）
&colorModel&:
内部参考资源
为您找到了如下结果，感谢您对七牛的支持。
技术/购买咨询
400-808-9176
开发者支持当前访客身份：游客 [
当前位置：
发布于 日 11时,
根据自定义的目标图高宽,&按目标图高宽比裁剪、缩放源图.传入参数:$source_path&string&源图路径$target_width&integer&目标图宽度$target_height&integer&目标图高度源图支持MIMETYPE:&image/gif,&image/jpeg,&image/png.
代码片段(1)
1.&[代码][PHP]代码&&&&
function imagecropper($source_path, $target_width, $target_height)
$source_info
= getimagesize($source_path);
$source_width
= $source_info[0];
$source_height = $source_info[1];
$source_mime
= $source_info['mime'];
$source_ratio
= $source_height / $source_
$target_ratio
= $target_height / $target_
// 源图过高
if ($source_ratio & $target_ratio)
$cropped_width
= $source_
$cropped_height = $source_width * $target_
$source_x = 0;
$source_y = ($source_height - $cropped_height) / 2;
// 源图过宽
elseif ($source_ratio & $target_ratio)
$cropped_width
= $source_height / $target_
$cropped_height = $source_
$source_x = ($source_width - $cropped_width) / 2;
$source_y = 0;
// 源图适中
$cropped_width
= $source_
$cropped_height = $source_
$source_x = 0;
$source_y = 0;
switch ($source_mime)
case 'image/gif':
$source_image = imagecreatefromgif($source_path);
case 'image/jpeg':
$source_image = imagecreatefromjpeg($source_path);
case 'image/png':
$source_image = imagecreatefrompng($source_path);
$target_image
= imagecreatetruecolor($target_width, $target_height);
$cropped_image = imagecreatetruecolor($cropped_width, $cropped_height);
imagecopy($cropped_image, $source_image, 0, 0, $source_x, $source_y, $cropped_width, $cropped_height);
imagecopyresampled($target_image, $cropped_image, 0, 0, 0, 0, $target_width, $target_height, $cropped_width, $cropped_height);
header('Content-Type: image/jpeg');
imagejpeg($target_image);
imagedestroy($source_image);
imagedestroy($target_image);
imagedestroy($cropped_image);
开源中国-程序员在线工具：
相关的代码(105)
25回/7113阅
1回/1255阅
开源从代码分享开始
sidbusy的其它代码MIME 参考手册
MIME 参考手册
MIME (Multipurpose Internet Mail Extensions) 是描述消息内容类型的因特网标准。
MIME 消息能包含文本、图像、音频、视频以及其他应用程序专用的数据。
官方的 MIME 信息是由 Internet Engineering Task Force (IETF) 在下面的文档中提供的：
Standard for
ARPA Internet text messages
MIME Part 1: Format of Internet Message Bodies
MIME Part 2: Media Types
MIME Part 3: Header Extensions for Non-ASCII Text
MIME Part 4: Registration Procedures
MIME Part 5: Conformance Criteria and Examples
不同的应用程序支持不同的 MIME 类型。
下面的参考手册是由 Microsoft Internet Information Server version 5 所支持的 MIME 类型列表。
按照内容类型排列的 Mime 类型列表
类型/子类型
application/envoy
application/fractals
application/futuresplash
application/hta
application/internet-property-stream
application/mac-binhex40
application/msword
application/msword
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/octet-stream
application/oda
application/olescript
application/pdf
application/pics-rules
application/pkcs10
application/pkix-crl
application/postscript
application/postscript
application/postscript
application/rtf
application/set-payment-initiation
application/set-registration-initiation
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-outlook
application/vnd.ms-pkicertstore
application/vnd.ms-pkiseccat
application/vnd.ms-pkistl
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-project
application/vnd.ms-works
application/vnd.ms-works
application/vnd.ms-works
application/vnd.ms-works
application/winhlp
application/x-bcpio
application/x-cdf
application/x-compress
application/x-compressed
application/x-cpio
application/x-csh
application/x-director
application/x-director
application/x-director
application/x-dvi
application/x-gtar
application/x-gzip
application/x-hdf
application/x-internet-signup
application/x-internet-signup
application/x-iphone
application/x-javascript
application/x-latex
application/x-msaccess
application/x-mscardfile
application/x-msclip
application/x-msdownload
application/x-msmediaview
application/x-msmediaview
application/x-msmediaview
application/x-msmetafile
application/x-msmoney
application/x-mspublisher
application/x-msschedule
application/x-msterminal
application/x-mswrite
application/x-netcdf
application/x-netcdf
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-pkcs12
application/x-pkcs12
application/x-pkcs7-certificates
application/x-pkcs7-certificates
application/x-pkcs7-certreqresp
application/x-pkcs7-mime
application/x-pkcs7-mime
application/x-pkcs7-signature
application/x-sh
application/x-shar
application/x-shockwave-flash
application/x-stuffit
application/x-sv4cpio
application/x-sv4crc
application/x-tar
application/x-tcl
application/x-tex
application/x-texinfo
application/x-texinfo
application/x-troff
application/x-troff
application/x-troff
application/x-troff-man
application/x-troff-me
application/x-troff-ms
application/x-ustar
application/x-wais-source
application/x-x509-ca-cert
application/x-x509-ca-cert
application/x-x509-ca-cert
application/ynd.ms-pkipko
application/zip
audio/basic
audio/basic
audio/mpeg
audio/x-aiff
audio/x-aiff
audio/x-aiff
audio/x-mpegurl
audio/x-pn-realaudio
audio/x-pn-realaudio
audio/x-wav
image/cis-cod
image/jpeg
image/jpeg
image/jpeg
image/pipeg
image/svg+xml
image/tiff
image/tiff
image/x-cmu-raster
image/x-cmx
image/x-icon
image/x-portable-anymap
image/x-portable-bitmap
image/x-portable-graymap
image/x-portable-pixmap
image/x-rgb
image/x-xbitmap
image/x-xpixmap
image/x-xwindowdump
message/rfc822
message/rfc822
message/rfc822
text/plain
text/plain
text/plain
text/plain
text/richtext
text/scriptlet
text/tab-separated-values
text/webviewhtml
text/x-component
text/x-setext
text/x-vcard
video/mpeg
video/mpeg
video/mpeg
video/mpeg
video/mpeg
video/mpeg
video/quicktime
video/quicktime
video/x-la-asf
video/x-la-asf
video/x-ms-asf
video/x-ms-asf
video/x-ms-asf
video/x-msvideo
video/x-sgi-movie
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
按照文件扩展名排列的 Mime 类型列表
类型/子类型
application/octet-stream
application/internet-property-stream
application/postscript
audio/x-aiff
audio/x-aiff
audio/x-aiff
video/x-ms-asf
video/x-ms-asf
video/x-ms-asf
audio/basic
video/x-msvideo
application/olescript
text/plain
application/x-bcpio
application/octet-stream
text/plain
application/vnd.ms-pkiseccat
application/x-cdf
application/x-x509-ca-cert
application/octet-stream
application/x-msclip
image/x-cmx
image/cis-cod
application/x-cpio
application/x-mscardfile
application/pkix-crl
application/x-x509-ca-cert
application/x-csh
application/x-director
application/x-x509-ca-cert
application/x-director
application/x-msdownload
application/octet-stream
application/msword
application/msword
application/x-dvi
application/x-director
application/postscript
text/x-setext
application/envoy
application/octet-stream
application/fractals
x-world/x-vrml
application/x-gtar
application/x-gzip
text/plain
application/x-hdf
application/winhlp
application/mac-binhex40
application/hta
text/x-component
text/webviewhtml
image/x-icon
application/x-iphone
application/x-internet-signup
application/x-internet-signup
image/pipeg
image/jpeg
image/jpeg
image/jpeg
application/x-javascript
application/x-latex
application/octet-stream
video/x-la-asf
video/x-la-asf
application/octet-stream
application/x-msmediaview
application/x-msmediaview
audio/x-mpegurl
application/x-troff-man
application/x-msaccess
application/x-troff-me
message/rfc822
message/rfc822
application/x-msmoney
video/quicktime
video/x-sgi-movie
video/mpeg
audio/mpeg
video/mpeg
video/mpeg
video/mpeg
video/mpeg
application/vnd.ms-project
video/mpeg
application/x-troff-ms
application/x-msmediaview
message/rfc822
application/oda
application/pkcs10
application/x-pkcs12
application/x-pkcs7-certificates
application/x-pkcs7-mime
application/x-pkcs7-mime
application/x-pkcs7-certreqresp
application/x-pkcs7-signature
image/x-portable-bitmap
application/pdf
application/x-pkcs12
image/x-portable-graymap
application/ynd.ms-pkipko
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
application/x-perfmon
image/x-portable-anymap
application/vnd.ms-powerpoint
image/x-portable-pixmap
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/pics-rules
application/postscript
application/x-mspublisher
video/quicktime
audio/x-pn-realaudio
audio/x-pn-realaudio
image/x-cmu-raster
image/x-rgb
application/x-troff
application/rtf
text/richtext
application/x-msschedule
text/scriptlet
application/set-payment-initiation
application/set-registration-initiation
application/x-sh
application/x-shar
application/x-stuffit
audio/basic
application/x-pkcs7-certificates
application/futuresplash
application/x-wais-source
application/vnd.ms-pkicertstore
application/vnd.ms-pkistl
image/svg+xml
application/x-sv4cpio
application/x-sv4crc
application/x-shockwave-flash
application/x-troff
application/x-tar
application/x-tcl
application/x-tex
application/x-texinfo
application/x-texinfo
application/x-compressed
image/tiff
image/tiff
application/x-troff
application/x-msterminal
text/tab-separated-values
text/plain
application/x-ustar
text/x-vcard
x-world/x-vrml
audio/x-wav
application/vnd.ms-works
application/vnd.ms-works
application/vnd.ms-works
application/x-msmetafile
application/vnd.ms-works
application/x-mswrite
x-world/x-vrml
x-world/x-vrml
x-world/x-vrml
image/x-xbitmap
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
x-world/x-vrml
image/x-xpixmap
image/x-xwindowdump
application/x-compress
application/zip}
我要回帖
更多关于 imagejpeg 不输出 的文章
更多推荐
- ·毕业季唯美祝愿,愿毕业寄语愿你前程似锦锦未来可期
- ·乐度火鹰智能动态谱app官方网站与火鹰火鹰智能动态谱app官方网站哪个好？
- ·求这想找一部电视剧不记得名字名字
- ·向大大与林夕十大经典歌曲梦哪个好
- ·粉丝的升糖高还是米饭和米粉哪个糖分高？
- ·在来我的聚会英语翻译上我们可以跳舞吗的翻译
- ·1987属相农历九月十九出生最搭配的属相爱人
- ·大日本明治大学十年二钱 的铜币 值多钱
- ·谁知道这女的是谁？在哪能下载这女女女 电影迅雷下载？
- ·布辣格布吉麻辣烫培训安全吗？
- ·我49岁3月18生日姓张,想起一个好听的餐饮店名公司的店名
- ·有没有可以qt淘宝刷单免费公会的公会？最好是远程单多？
- ·《山河英雄志 更俗 小说》歌词下载
- ·这个主持人叫什么？中央经济频道主持人13套新闻频道的
- ·我农村的家里只有我跟奶奶，上次夏天 奶奶从冰箱里有个16.7岁的哥哥带了一个他的同学来我家玩，我听到哥哥跟奶奶说
- ·我属羊我老婆属兔 属马和属羊的认我做干爹可以不
- ·有人看到别人吃酸杏时把变质的东西给别人是啥意思啊
- ·复式四一肖中平特一个有没有钱
- ·粗线条的怎么和白羊座相处怎么相处？我经常给他买东西，我知道他不想我花钱，我们也经常怄气，大多都是他觉得是小事
- ·mimmime type imagee/jpeg是什么图片
- ·微信怎么样可以领取乐视会员免费领取2016视频的会员
- ·类似爱情公寓张伟扮演者2言严的扮演者
- ·第2015150期开奖结果双色球开奖结果
- ·5一分钟营救救概括文章的主要事件
- ·什么当空成语空什么当空成语去成语
- ·我们不要相爱 mp3下载了英文版mp3
- ·1975年11月二十四寅时生人男性农历生日看一生财运运如何
- ·为什么1个月可以祭两回祭亡灵杀手破解版下载
- ·谁有“初恋的地方”“爱情海”鸿运当头游戏机”图片的高清源文件
- ·郁远远是什么退出2k16进入正式比赛退出的？
- ·柯震东吸毒视频？你们恨他吗？
- ·二九光彩四一送、一见四落二六开、是什么十二生肖铜首下落和号码'
- ·公 海 赌 船+现在咋样啦？？有在线的么？？考研英语高分作文赏析赏。。。
- ·火影火星救援 1080p bt1080已经出了 求百度云分享
