上传的第一张图片是可以的,但是后面的都是不可以,后台返回的都是第一张的信息;分一张张传也不行;只有退出当前activity之后再进去传才能传新的;这是怎么回事???
public String uploadFile(Map<String, File> files) {
String data = "";
String actionUrl = URL+"file/uploadClientPic";
// Map<String, String> params = new HashMap<String, String>();
// params.put("t", ""+System.currentTimeMillis());
String BOUNDARY = java.util.UUID.randomUUID().toString();
String PREFIX = "--", LINEND = "\r\n";
String MULTIPART_FROM_DATA = "multipart/form-data";
String CHARSET = "UTF-8";
URL uri;
try {
uri = new URL(actionUrl);
HttpURLConnection conn = (HttpURLConnection) uri.openConnection();
conn.setReadTimeout(10 * 1000);
conn.setDoInput(true);// 允许输入
conn.setDoOutput(true);// 允许输出
conn.setUseCaches(true);
conn.setRequestMethod("POST"); // Post方式
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
String end = "\r\n";
String twoHyphens = "--";
String boundary = "******";
// 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());
outStream.writeBytes(twoHyphens + boundary + end);
// 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.getKey() + "\"" + 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();
InputStreamReader isReader = new InputStreamReader(in);
BufferedReader bufReader = new BufferedReader(isReader);
String line = null;
while ((line = bufReader.readLine()) != null)
{
data += line;
}
if (res == 200) {
int ch;
StringBuilder sb2 = new StringBuilder();
while ((ch = in.read()) != -1) {
sb2.append((char) ch);
}
}
outStream.close();
conn.disconnect();
} catch (Exception e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return data;
}