Http multipart/form-data多参数Post方式上传数据

--(boundary的任意字符串)**********
Content-Disposition: form-data; name="postKey"postValue
--(boundary的任意字符串)**********
Content-Disposition: form-data; name="postKey"; filename="file.getName()"
Content-Type: image/png; charset=utf-8
(文件的二进制数据)
--(boundary的任意字符串)**********--

public static ResponseVo importForBatchAddDetailsPost(String requestUrl,String promoId,String operator, String filePath) {
File file=new File(filePath);
ResponseVo result = new ResponseVo();
JSONObject json = new JSONObject();
String BOUNDARY = "------WebKitFormBoundaryAl9CIOBJ1jfQWTl8";
URL url; try {
url = new URL(requestUrl);
//SSLContext sc=SSLContext.getInstance("SSL");
//sc.init(null,new TrustManager[] {new MyX509TrustManager()},new java.security.SecureRandom());
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
//urlConnection.setSSLSocketFactory(sc.getSocketFactory());
//urlConnection.setHostnameVerifier(new TrustAnyHostnameVerifier());
urlConnection.setUseCaches(false);
urlConnection.setRequestMethod("POST");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.setRequestProperty("Connection","Keep-Alive");
urlConnection.setRequestProperty("Uuser-Agent","Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36");
urlConnection.setRequestProperty("Charset","UTF-8");
urlConnection.setRequestProperty("Content-Type","multipart/form-data; boundary=" + "----WebKitFormBoundaryAl9CIOBJ1jfQWTl8");
urlConnection.connect();
StringBuilder contentBody1 = new StringBuilder();
StringBuilder contentBody2 = new StringBuilder();
String boundary = BOUNDARY+ "\r\n";
DataOutputStream out =new DataOutputStream(urlConnection.getOutputStream());
byte[] end_data=("------WebKitFormBoundaryAl9CIOBJ1jfQWTl8--".getBytes());
if (file != null) {
//第一部分参数：excel文件
contentBody1.append(boundary);
contentBody1.append("Content-Disposition: form-data; name=\"file\"; filename=\"ActImportHouseTemplate.xlsx\""+"\r\n");
contentBody1.append("Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"+"\r\n");
contentBody1.append("\r\n"); out.write(contentBody1.toString().getBytes());
//读取excel文件
DataInputStream dis = new DataInputStream(new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[(int) file.length()];
bytes = dis.read(bufferOut);
out.write(bufferOut, 0, bytes);
out.write("\r\n".getBytes());
dis.close();
//第二部分参数：其他参数promoId,operator
contentBody2.append(boundary);
contentBody2.append("Content-Disposition: form-data; name=\"promoId\""+ "\r\n");
contentBody2.append("\r\n");
contentBody2.append(promoId+ "\r\n");
contentBody2.append(boundary);
contentBody2.append("Content-Disposition: form-data; name=\"operator\""+ "\r\n");
contentBody2.append("\r\n");
contentBody2.append(operator+ "\r\n"); out.write(contentBody2.toString().getBytes());
out.write(end_data);
out.flush(); //从服务器获得回答的内容
InputStream inputStream=urlConnection.getInputStream();
InputStreamReader reader=new InputStreamReader(inputStream);
BufferedReader in=new BufferedReader(reader);
String strLine = "";
String strResponse = "";
while ((strLine = in.readLine()) != null) {
strResponse += strLine + "\n";
json = JSON.parseObject(strResponse);
}
result.setJson(json);
out.close(); }
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//catch (NoSuchAlgorithmException e){}
//catch (NoSuchProviderException e){}
//catch (KeyManagementException e){}
return result;
}

public class MyX509TrustManager implements X509TrustManager{ public MyX509TrustManager(){}
@Override
public void checkClientTrusted(X509Certificate[] arg0, String arg1)
throws CertificateException {
// TODO Auto-generated method stub } @Override
public void checkServerTrusted(X509Certificate[] arg0, String arg1)
throws CertificateException {
// TODO Auto-generated method stub } @Override
public X509Certificate[] getAcceptedIssuers() {
// TODO Auto-generated method stub
return null;
} public static SSLSocketFactory getSSFactory() throws NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException{
TrustManager[] tm = { new MyX509TrustManager()};
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
SSLSocketFactory ssf = sslContext.getSocketFactory();
return ssf;
}}

public class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session){
return true;
}
}