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_周星星 2016-12-09
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AsyncHttpClient 我们一般用这个框架 http哈 RequestParams直接封装一个File就行
qq_34025020 2016-12-08
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你用Xutils是怎么上传的？我这上传只能传上最后一张图片[/quote]
传的图片路径啊，网上很多例子[/quote]
我这是用的图片路径,循环遍历之后只上传最后一张图片
line1213 2016-12-08
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你用Xutils是怎么上传的？我这上传只能传上最后一张图片[/quote]
传的图片路径啊，网上很多例子
qq_34025020 2016-12-08
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你用Xutils是怎么上传的？我这上传只能传上最后一张图片
line1213 2016-09-22
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用第三方框架xutils就好了啊，我目前的项目就是用的xutils
头发还没秃a 2016-09-22
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根据网上的例子做的：
UploadThread.java:
public class UploadThread extends Thread {
private static AdLog logger = AdLog.clog();
/*上传路径*/
private static String url="";
/*参数*/
private Map<String, String> params = new HashMap<>();
/*需要上传的文件的列表*/
private Map<String, File> files = new HashMap<>();
private static final int TIME_OUT = 15*1000; //超时时间
private static final String CHARSET = "UTF-8"; //设置编码
private static final String BOUNDARY = java.util.UUID.randomUUID().toString();
private static final String PREFIX = "--";
private static final String LINEND = "\r\n";
private static final String MULTIPART_FROM_DATA = "multipart/form-data";
private static FileUploadListener listener;
public void OnUploadListener(FileUploadListener listener) {
this.listener = listener;
}
public interface FileUploadListener{
void UploadStart();
void UploadSucceed(String succeed);
void UploadFail();
}
public UploadThread(String url, Map<String, String> params, Map<String, File> files, FileUploadListener listener){
this.url = url;
this.files = files;
this.params = params;
this.listener = listener;
}
@Override
public void run() {
if (listener!=null) {
listener.UploadStart();
}
try {
URL uri = new URL(url);
HttpURLConnection conn = (HttpURLConnection) uri.openConnection();
// conn.setReadTimeout(10 * 1000); // 缓存的最长时间
conn.setConnectTimeout(TIME_OUT);
conn.setDoInput(true);// 允许输入
conn.setDoOutput(true);// 允许输出
conn.setUseCaches(false); // 不允许使用缓存
conn.setRequestMethod("POST");
conn.setRequestProperty("connection", "keep-alive");
conn.setRequestProperty("Charsert", "UTF-8");
conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);
// 首先组拼文本类型的参数
StringBuilder sb = new StringBuilder();
for (Map.Entry<String, String> entry : params.entrySet()) {
sb.append(PREFIX);
sb.append(BOUNDARY);
sb.append(LINEND);
sb.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"" + LINEND);
sb.append("Content-Type: text/plain; charset=" + CHARSET + LINEND);
sb.append("Content-Transfer-Encoding: 8bit" + LINEND);
sb.append(LINEND);
sb.append(entry.getValue());
sb.append(LINEND);
}
DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
outStream.write(sb.toString().getBytes());
// 发送文件数据
if (files != null)
for (Map.Entry<String, File> file : files.entrySet()) {
StringBuilder sb1 = new StringBuilder();
sb1.append(PREFIX);
sb1.append(BOUNDARY);
sb1.append(LINEND);
sb1.append("Content-Disposition: form-data; name=\"file\"; filename=\""
+ file.getValue().getName() + "\"" + LINEND);
// sb1.append("Content-Disposition: form-data; name=\"" + "file" + "\"" + LINEND);
sb1.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINEND);
sb1.append(LINEND);
outStream.write(sb1.toString().getBytes());
InputStream is = new FileInputStream(file.getValue());
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
is.close();
outStream.write(LINEND.getBytes());
}
// 请求结束标志
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
outStream.write(end_data);
outStream.flush();
// 得到响应码
int res = conn.getResponseCode();
InputStream in = conn.getInputStream();
StringBuilder sb2 = new StringBuilder();
if (res == 200) {
int ch;
while ((ch = in.read()) != -1) {
sb2.append((char) ch);
}
}
String succeedStr = new String(sb2.toString().getBytes("iso8859-1"), "UTF-8");
logger.i("UploadThread : succeedStr = " + succeedStr);
Map<String, Object> returnMap = Converter.string2Map(succeedStr);
if (Converter.object2Integer(returnMap.get("code")) == 1){
if (listener != null) {
listener.UploadSucceed(Converter.map2String(returnMap));
}
}else {
if (listener != null) {
listener.UploadFail();
}
}
outStream.close();
conn.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
if (listener!=null) {
listener.UploadFail();
}
} catch (IOException e) {
e.printStackTrace();
if (listener!=null) {
listener.UploadFail();
}
}
}
}
Map<String, String> params = new HashMap<>();//参数map
params.put("_userId", getPrefHelper().read("_userId").toString());
params.put("_token", getPrefHelper().read("_token").toString());
Map<String, File> files = new HashMap<>();//图片map
File file = new File("图片路径");
files.put("file", file);
new UploadThread(ApiClient.getUploadPersonHeadportraitURL(), params, files, new UploadThread.FileUploadListener() {
@Override
public void UploadStart() {
logger.i("UpLoad : 开始");
mHandler.sendMessage(mHandler.obtainMessage(UPLOAD_START));
}
@Override
public void UploadSucceed(String succeed) {
logger.i("UpLoad : 成功 = " + succeed);
mHandler.sendMessage(mHandler.obtainMessage(UPLOAD_SUCCEED));
}
@Override
public void UploadFail() {
logger.i("UpLoad : 失败");
mHandler.sendMessage(mHandler.obtainMessage(UPLOAD_FAIL));
}
}).start();
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
try
{
List items = upload.parseRequest(request);
Iterator itr = items.iterator();
while (itr.hasNext())
{
FileItem item = (FileItem) itr.next();
if (item.isFormField())
{
System.out.println("表单参数名:" + item.getFieldName() + "，表单参数值:" + item.getString("UTF-8"));
}
else
{
if (item.getName() != null && !item.getName().equals(""))
{
System.out.println("上传文件的大小:" + item.getSize());
System.out.println("上传文件的类型:" + item.getContentType());
// item.getName()返回上传文件在客户端的完整路径名称
System.out.println("上传文件的名称:" + item.getName());
File tempFile = new File(item.getName());
// 上传文件的保存路径
File file = new File(sc.getRealPath("/") + savePath, tempFile.getName());
item.write(file);
request.setAttribute("upload.message", "上传文件成功！");
} else
{
request.setAttribute("upload.message", "没有选择上传文件！");
}
}
}
}
catch (FileUploadException e)
{
e.printStackTrace();
}
catch (Exception e)
{
e.printStackTrace();
request.setAttribute("upload.message", "上传文件失败！");
}
request.getRequestDispatcher("/uploadResult.jsp").forward(request, response);
shinobu59 2016-09-22
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咋做的
風言楓語 2016-09-21
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楼上正解 主要是业务逻辑
nodream521 2016-09-21
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跟用什么网络框架没关系，主要是逻辑业务，
比如：未上传图片路径 unUploadList, 已上传图片路径集合 uploadList
上传成功一个后，成功回调里，从unuploadlist中拿出，放入 已上传图片路径集合，再上传第二张，已此类推
头发还没秃a 2016-09-21
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我做了一次性上传多张到服务器的，嘎嘎
无奈的程序猿 2016-09-19
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其实对于安卓来说，用腾讯云处理图像上传和识别还是比较靠谱的，可以试试。
kylodw 2016-09-19
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你好，，你那边有类似的demo么。。让我参考参考
LoveWyf_ 2016-09-19
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可以使用一些第三方封装好的框架，okhttp、volley等
