android post方式上传文件（模拟表单格式数据提交）
表单提交内容为：
POST /upload.php?zp_id=ab46ca6d703e3a1580c1c9b8b3a8fb39 HTTP/1.1
Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
Referer: http://campus.eastmoney.com/upload/uploadf.php?zp_id=ab46ca6d703e3a1580c1c9b8b3a8fb39
Accept-Language: zh-cn
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Content-Type: multipart/form-data; boundary=---------------------------7de8c1a80910
Accept-Encoding: gzip, deflate
Host: campus.eastmoney.com
Content-Length: 8636
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: emstat_bc_emcount=7843405732305291404; emstat_ss_emcount=104_1395241887_3077552069; zp_id=ab46ca6d703e3a1580c1c9b8b3a8fb39; zp_tag=%C8%CB%CA%C2%D6%FA%C0%ED%A3%A8%C8%CB%C1%A6%D7%CA%D4%B4%B2%BF%A3%A9; PHPSESSID=e4820e25c1ced88e0e677ed9610f3f56
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="__VIEWSTATE"
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="txtFileSer"
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="txtSeqID"
94564504-c3bd-44c1-8048-e1195f701c9b
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="txtAlias"
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="txtSourceID"
8619075e-952c-45d5-90e7-43d80e1e7f40
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="txtCname"
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="txtUpLoad"; filename="ss.jpg"
Content-Type: image/pjpeg
籿湈x=*旫?;?欋芳管搪O*kbpU#m噡
-----------------------------7de8c1a80910
Content-Disposition: form-data; name="btnUpload"
上传
-----------------------------7de8c1a80910--
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import com.eastmoney.util.FileUtil;
public class HttpAssistant implements Runnable {
public static final int REQUEST_ERROR = 0xFFF;
public static final int URL_MARLFORMED_ERROR = 0xFFE;
public static final int IO_EXCEPTION_REEOR = 0xFFD;
public static final int RESPONSE_SUCCESS = 0xFFC;
final int CONNECT_TIME_OUT = 10000;
final int READ_TIME_OUT = 10000;
String requestString;
HttpResponseCallback mCallback;
RequestType type;
HashMap<String, String> params;
/**
* @param requestString
* 请求字串
* @param callback
* 请求结果回调
* @param type
* 请求类型（GET/POST）
* @param params
* post请求参数
*/
public HttpAssistant(String requestString, HttpResponseCallback callback,
RequestType type, HashMap<String, String> params) {
this.requestString = requestString;
this.mCallback = callback;
this.type = type;
this.params = params;
}
@Override
public void run() {
if (type == null) {
throw new IllegalArgumentException(
"NetworkRequest must specify a request type");
}
StringBuilder sb = new StringBuilder();
HttpURLConnection conn = null;
if (type == RequestType.GET || type == RequestType.GET_THUMBNAIL
|| type == RequestType.GET_AUDIO
|| type == RequestType.GET_IMAGE) {
// GET请求
try {
URL url = new URL(requestString);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(CONNECT_TIME_OUT);
conn.setReadTimeout(READ_TIME_OUT);
conn.connect();
InputStream is = conn.getInputStream();
if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
if (mCallback != null) {
mCallback.onResponse(REQUEST_ERROR, null);
}
conn.disconnect();
return;
}
if (type == RequestType.GET) {
BufferedReader br = new BufferedReader(
new InputStreamReader(is));
String line = null;
sb.setLength(0);
while ((line = br.readLine()) != null) {
sb.append(line);
}
if (mCallback != null) {
mCallback.onResponse(RESPONSE_SUCCESS, sb.toString());
}
} else {
File file = null;
if (type == RequestType.GET_THUMBNAIL) {
file = FileUtil.createCacheFile(
String.valueOf(requestString.hashCode()),
FileUtil.Type.THUMBNAIL);
} else if (type == RequestType.GET_IMAGE) {
file = FileUtil.createCacheFile(
String.valueOf(requestString.hashCode()),
FileUtil.Type.IMAGE);
} else if (type == RequestType.GET_AUDIO) {
file = FileUtil.createCacheFile(
String.valueOf(requestString.hashCode()),
FileUtil.Type.AUDIO);
}
if (file == null) {
if (mCallback != null) {
mCallback.onResponse(IO_EXCEPTION_REEOR, null);
}
return;
}
FileOutputStream fos = new FileOutputStream(file);
byte[] buffer = new byte[1024];
int length = 0;
while ((length = is.read(buffer)) != -1) {
fos.write(buffer, 0, length);
}
fos.flush();
fos.close();
if (mCallback != null) {
mCallback.onResponse(RESPONSE_SUCCESS, file);
}
buffer = null;
System.gc();
}
conn.disconnect();
return;
} catch (MalformedURLException e) {
if (mCallback != null) {
mCallback.onResponse(URL_MARLFORMED_ERROR, null);
}
} catch (IOException e) {
if (mCallback != null) {
mCallback.onResponse(IO_EXCEPTION_REEOR, null);
}
} finally {
if (conn != null) {
conn.disconnect();
}
}
} else if (type == RequestType.POST_IMAGE
|| type == RequestType.POST_AUDIO) {
if (params == null) {
throw new IllegalArgumentException(
"Post request must specify arguments");
}
// 数据分割线
String BOUNDARY = "---------------------------7de8c1a80910";
// POST请求
try {
URL url = new URL(requestString);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(CONNECT_TIME_OUT);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setReadTimeout(READ_TIME_OUT);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestProperty(
"User-Agent",
"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)");
conn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + BOUNDARY);
// 末尾数据分隔符
byte[] endData = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();
// 数据输出流
DataOutputStream dos = new DataOutputStream(
conn.getOutputStream());
// 构建post数据
sb.setLength(0);
Iterator<String> i = params.keySet().iterator();
while (i.hasNext()) {
String key = i.next();
if (!key.equals("txtUpLoad")) {
// 向输出流中填写普通文本数据
sb.append("\r\n\r\n\r\n--" + BOUNDARY + "\r\n");
sb.append("Content-Disposition: form-data; name=\""
+ key + "\"" + "\r\n\r\n");
sb.append(params.get(key) + "\r\n");
dos.write(sb.toString().getBytes());
sb.setLength(0);
} else {
// 向输出流中填写上传的文件数据
sb.append("\r\n\r\n--" + BOUNDARY + "\r\n");
sb.append("Content-Disposition: form-data; name=\"txtUpLoad\"; filename=\""
+ params.get("txtUpLoad") + "\"" + "\r\n");
if (type == RequestType.POST_IMAGE) {
sb.append("Content-Type: image/*\r\n\r\n");
} else {
sb.append("Content-Type: audio/*\r\n\r\n");
}
dos.write(sb.toString().getBytes());
sb.setLength(0);
// 传输文件数据
FileInputStream fis = new FileInputStream(new File(
params.get("txtUpLoad")));
byte[] buffer = new byte[1024];
int length = 0;
while ((length = fis.read(buffer)) != -1) {
dos.write(buffer, 0, length);
}
fis.close();
}
}
dos.write(endData);
// 刷新输出流
dos.flush();
dos.close();
// 获取返回数据
InputStream is = conn.getInputStream();
if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
if (mCallback != null) {
mCallback.onResponse(REQUEST_ERROR, null);
}
conn.disconnect();
return;
}
sb.setLength(0);
BufferedReader br = new BufferedReader(
new InputStreamReader(is));
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line);
}
if (mCallback != null) {
mCallback.onResponse(RESPONSE_SUCCESS, sb.toString());
}
conn.disconnect();
} catch (MalformedURLException e) {
if (mCallback != null) {
mCallback.onResponse(URL_MARLFORMED_ERROR, null);
}
} catch (IOException e) {
if (mCallback != null) {
mCallback.onResponse(IO_EXCEPTION_REEOR, null);
}
} finally {
if (conn != null) {
conn.disconnect();
}
}
}
}
/** 设置网络请求回调. */
public void setCallback(HttpResponseCallback callback) {
this.mCallback = callback;
}
/** 网络请求回调接口. */
public static interface HttpResponseCallback {
public void onResponse(int responseCode, Object responseObject);
}
public static enum RequestType {
/** 一般get请求，返回数据为字符串 */
GET,
/** 获取头像缩略图. */
GET_THUMBNAIL,
/** 获取图片文件. */
GET_IMAGE,
/** 获取音频文件 */
GET_AUDIO,
/** post请求，上传数据为image */
POST_IMAGE,
/** post请求，上传数据为audio */
POST_AUDIO;
}
}
