如何上传Android的多部分表单数据和图像服务器? [英] How to upload multipart form data and image to server in android?
本文介绍了如何上传Android的多部分表单数据和图像服务器?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
状态code 500在上传多部分实体的图像在android的code服务器
HTML表单: (可以添加成功图像服务器)
<形式方法=邮报行动=HTTP:// XYZ / upload_pictureENCTYPE =的multipart / form-data的>
样品图片上传表单提交
< BR />< BR />
API密钥:<输入类型=文本名称=键值=ABC>< BR />< BR />
登录:LT;输入类型=文本名称=登陆值=文本>< BR />
密码:<输入类型=密码NAME =密码值=文本>< BR />< BR />
物业编号:LT;输入类型=文本名称=property_id值=111>< BR />
图片文件:其中;输入类型=文件NAME =图片>< BR />< BR />
< BR />< BR />
<输入类型=提交名称=值=上传图片>< BR />
< /形式GT;
的Android code: (给状态code 500)
HttpClient的HttpClient的=新DefaultHttpClient();
HttpPost httppost =新HttpPost(
HTTP:// XYZ / upload_picture);
尝试 {
MultipartEntity实体=新MultipartEntity();
entity.addPart(钥匙,新StringBody(ABC));
entity.addPart(登陆,新StringBody(ABC));
entity.addPart(密码,新StringBody(测试));
entity.addPart(property_id,新StringBody(111));
档案文件=新的文件(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DCIM)的ToString()
+/Camera/Test.jpg);
entity.addPart(图片报,新FileBody(文件));
httppost.setEntity(实体);
HTT presponse响应= httpclient.execute(httppost);
Log.e(测试,SC+ response.getStatusLine()的getStatus code());
HttpEntity resEntity = response.getEntity();
的BufferedReader读卡器=新的BufferedReader(新的InputStreamReader(
。response.getEntity()的getContent(),UTF-8));
字符串sResponse;
StringBuilder的S =新的StringBuilder();
而((sResponse = reader.readLine())!= NULL){
S = s.append(sResponse);
}
Log.e(测试,回应:+ S);
}赶上(ClientProtocolException E){
}赶上(IOException异常E){
}
解决方案
如果你像我一样是用多部分上传挣扎。下面是使用95%的code从这个的Android的代码片段的解决方案。
公共字符串multipartRequest(字符串urlTo,地图<字符串,字符串> parmas,文件路径字符串,字符串的FileField,字符串fileMimeType)抛出CustomException {
HttpURLConnection的连接= NULL;
DataOutputStream类的OutputStream = NULL;
的InputStream的InputStream = NULL;
串twoHyphens = - ;
字符串边界=*****+ Long.toString(System.currentTimeMillis的())+*****;
字符串lineEnd =\ r \ N的;
字符串结果=;
INT读取动作,方bytesAvailable,缓冲区大小;
byte []的缓冲区;
INT maxBufferSize = 1 * 1024 * 1024;
的String [] Q = filepath.split(/);
INT IDX = q.length - 1;
尝试 {
档案文件=新的文件(文件路径);
的FileInputStream的FileInputStream =新的FileInputStream(文件);
网址URL =新的URL(urlTo);
连接=(HttpURLConnection类)url.openConnection();
connection.setDoInput(真正的);
connection.setDoOutput(真正的);
connection.setUseCaches(假);
connection.setRequestMethod(POST);
connection.setRequestProperty(连接,保持活动);
connection.setRequestProperty(用户代理,Android的多部分HTTP客户端1.0);
connection.setRequestProperty(内容类型,多部分/格式数据;边界=+界);
的OutputStream =新DataOutputStream类(connection.getOutputStream());
outputStream.writeBytes(twoHyphens +边界+ lineEnd);
outputStream.writeBytes(内容处置:表格数据;名称= \+的FileField +\;文件名= \+ Q [IDX] +\+ lineEnd);
outputStream.writeBytes(内容类型:+ fileMimeType + lineEnd);
outputStream.writeBytes(内容传输编码:二进制+ lineEnd);
outputStream.writeBytes(lineEnd);
方bytesAvailable = fileInputStream.available();
BUFFERSIZE = Math.min(方bytesAvailable,maxBufferSize);
缓冲区=新的字节[BUFFERSIZE]
读取动作= fileInputStream.read(缓冲液,0,BUFFERSIZE);
而(读取动作大于0){
outputStream.write(缓冲液,0,BUFFERSIZE);
方bytesAvailable = fileInputStream.available();
BUFFERSIZE = Math.min(方bytesAvailable,maxBufferSize);
读取动作= fileInputStream.read(缓冲液,0,BUFFERSIZE);
}
outputStream.writeBytes(lineEnd);
//上传POST数据
迭代器<字符串> 。键= parmas.keySet()迭代();
而(keys.hasNext()){
字符串键= keys.next();
字符串值= parmas.get(密钥);
outputStream.writeBytes(twoHyphens +边界+ lineEnd);
outputStream.writeBytes(内容处置:表格数据;名称= \+按键+\+ lineEnd);
outputStream.writeBytes(内容类型:text / plain的+ lineEnd);
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(值);
outputStream.writeBytes(lineEnd);
}
outputStream.writeBytes(twoHyphens +边界+ twoHyphens + lineEnd);
如果(200!= connection.getResponse code()){
抛出新CustomException(无法上传code:+ connection.getResponse code()++ connection.getResponseMessage());
}
的InputStream = connection.getInputStream();
结果= this.convertStreamToString(InputStream的);
fileInputStream.close();
inputStream.close();
outputStream.flush();
outputStream.close();
返回结果;
}赶上(例外五){
logger.error(E);
抛出新CustomException(E);
}
}
私人字符串convertStreamToString(InputStream的是){
的BufferedReader读卡器=新的BufferedReader(新InputStreamReader的(是));
StringBuilder的SB =新的StringBuilder();
串线= NULL;
尝试 {
而((行= reader.readLine())!= NULL){
sb.append(线);
}
}赶上(IOException异常E){
e.printStackTrace();
} 最后 {
尝试 {
is.close();
}赶上(IOException异常E){
e.printStackTrace();
}
}
返回sb.toString();
}
调用code:
//设置PARAMS
地图<字符串,字符串> PARAMS =新的HashMap<字符串,字符串>(2);
params.put(富,散列);
params.put(酒吧,标题);
字符串结果= multipartRequest(URL_UPLOAD_VIDEO,参数,可以pathToVideoFile,视频,视频/ MP4);
//下一个解析结果字符串
Status code 500 during upload multipart entity image to server in android code
Html form: (can add successfully image to server)
<form method="post" action="http://xyz/upload_picture" enctype="multipart/form-data">
Sample Picture Upload Form Submit
<br/><br/>
API key: <input type="text" name="key" value="abc"><br/><br/>
Login: <input type="text" name="login" value="text"><br/>
Password: <input type="password" name="password" value="text"><br/><br/>
Property ID:<input type="text" name="property_id" value="111"><br/>
Picture File:<input type="file" name="picture"><br/><br/>
<br/><br/>
<input type="submit" name="" value="Upload Picture"><br/>
</form>
Android code : (gives status code 500)
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(
"http://xyz/upload_picture");
try {
MultipartEntity entity = new MultipartEntity();
entity.addPart("key", new StringBody("abc"));
entity.addPart("login", new StringBody("abc"));
entity.addPart("password", new StringBody("test"));
entity.addPart("property_id", new StringBody("111"));
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DCIM).toString()
+ "/Camera/Test.jpg");
entity.addPart("picture", new FileBody(file));
httppost.setEntity(entity);
HttpResponse response = httpclient.execute(httppost);
Log.e("test", "SC:" + response.getStatusLine().getStatusCode());
HttpEntity resEntity = response.getEntity();
BufferedReader reader = new BufferedReader(new InputStreamReader(
response.getEntity().getContent(), "UTF-8"));
String sResponse;
StringBuilder s = new StringBuilder();
while ((sResponse = reader.readLine()) != null) {
s = s.append(sResponse);
}
Log.e("test", "Response: " + s);
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
解决方案
If like me you were struggling with multipart upload. Here's a solution using 95% of code from this Android snippet.
public String multipartRequest(String urlTo, Map<String, String> parmas, String filepath, String filefield, String fileMimeType) throws CustomException {
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
InputStream inputStream = null;
String twoHyphens = "--";
String boundary = "*****" + Long.toString(System.currentTimeMillis()) + "*****";
String lineEnd = "\r\n";
String result = "";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
String[] q = filepath.split("/");
int idx = q.length - 1;
try {
File file = new File(filepath);
FileInputStream fileInputStream = new FileInputStream(file);
URL url = new URL(urlTo);
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("User-Agent", "Android Multipart HTTP Client 1.0");
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
outputStream = new DataOutputStream(connection.getOutputStream());
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data; name=\"" + filefield + "\"; filename=\"" + q[idx] + "\"" + lineEnd);
outputStream.writeBytes("Content-Type: " + fileMimeType + lineEnd);
outputStream.writeBytes("Content-Transfer-Encoding: binary" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
// Upload POST Data
Iterator<String> keys = parmas.keySet().iterator();
while (keys.hasNext()) {
String key = keys.next();
String value = parmas.get(key);
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data; name=\"" + key + "\"" + lineEnd);
outputStream.writeBytes("Content-Type: text/plain" + lineEnd);
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(value);
outputStream.writeBytes(lineEnd);
}
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
if (200 != connection.getResponseCode()) {
throw new CustomException("Failed to upload code:" + connection.getResponseCode() + " " + connection.getResponseMessage());
}
inputStream = connection.getInputStream();
result = this.convertStreamToString(inputStream);
fileInputStream.close();
inputStream.close();
outputStream.flush();
outputStream.close();
return result;
} catch (Exception e) {
logger.error(e);
throw new CustomException(e);
}
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
Calling code:
//setup params
Map<String, String> params = new HashMap<String, String>(2);
params.put("foo", hash);
params.put("bar", caption);
String result = multipartRequest(URL_UPLOAD_VIDEO, params, pathToVideoFile, "video", "video/mp4");
//next parse result string
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