AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","app_id","your private_key","json","GBK","alipay_public_key","RSA2");
AlipayEcoDocTemplateCreateRequest request = new AlipayEcoDocTemplateCreateRequest();
request.setBizContent("{" +
  "\"content_md_5\":\"feac769fb4cfa1a9290d3f5461ba8339\"," +//模板文件的md5值
  "\"content_type\":\"application/pdf\"," +//文件MIME类型。
  "\"file_name\":\"contract.pdf\"," +//文件名需带后缀名
  "\"convert_to_pdf\":\"false\"" +//是否需要转换为PDF
"}");
// e签宝功能暂不支持三方调用，accessToken及appAuthToken参数入参 null 即可。
//注意：execute 方法入参最后一个参数为 targetId 该值固定为 2021001101679589
AlipayEcoDocTemplateCreateResponse response = alipayClient.execute(request,accessToken,appAuthToken,"2021001101679589");
if(response.isSuccess()){
  System.out.println("调用成功");
} else {
  System.out.println("调用失败");
}

AlipayEcoDocTemplateCreateResponse response = alipayClient.execute(request,accessToken,appAuthToken,"2021001101679589");

String contentType = new MimetypesFileTypeMap().getContentType(new File("filePath"));

File file = new File("filePath");
FileInputStream fileInputStream = null;
try {
  MessageDigest MD5 = MessageDigest.getInstance("MD5");
  fileInputStream = new FileInputStream(file);
  byte[] buffer = new byte[8092];
  int length;
  while ((length = fileInputStream.read(buffer)) != -1) {
  MD5.update(buffer, 0, length);
}
// 取摘要的base64
  return Base64.encodeBase64String(MD5.digest());
} catch (Exception e) {
  e.printStackTrace();
  return null;
} finally {
try {
  if (fileInputStream != null) {
    fileInputStream.close();
}
} catch (IOException e) {
  e.printStackTrace();
}
}

public boolean sendFileToUrl(String url, File file, String contentType, String md5)throws IOException {
  CloseableHttpClient httpclient = HttpClients.createDefault();
  try {
 HttpPut httpPut = new HttpPut(url);
 if (StringUtils.isNotBlank(contentType)) {
             httpPut.setHeader("Content-Type", contentType);
 } else {
               httpPut.setHeader("Content-Type", "application/octet-stream");
             }
             if (StringUtils.isNotBlank(md5)) {
                 httpPut.setHeader("Content-MD5", md5);
             }
 httpPut.setEntity(new FileEntity(file, ContentType.APPLICATION_OCTET_STREAM));
 System.out.println(httpPut.getRequestLine());
 CloseableHttpResponse execute = httpclient.execute(httpPut);
 if (execute.getStatusLine().getStatusCode() == 200) {
 String result = EntityUtils.toString(execute.getEntity(), "UTF-8");
 JSONObject object = JSON.parseObject(result);
 if (object.getIntValue("errCode") == 0) {
 return true;
 }
 }
 return false;
 } catch (Exception e) {
 e.printStackTrace();
 return false;
 } finally {
 httpclient.close();
 }
 }

{
  "plugins": {
    "esign": {
      "version": "*",
      "provider": "2021001115656413"
    }
  },
}

// app.js
if (!my.canIUse('plugin') && !my.isIDE) {
  my.ap && my.ap.updateAlipayClient && my.ap.updateAlipayClient();
}
App({
  onLaunch() {},
  onShow() {},
})

// flowId 表示发起的e签宝电子合同流程id
my.navigateTo({
  url: `plugin://esign/home?flowId=${flowId}`,
})

// flowId：创建电子合同签署流程返回的流程id
// thirdPartyUserId：创建签署流程时指定的个人唯一标识
// skipResult：true 跳过插件签署结果页，直接返回母体小程序页面，默认false
// skipGuide：true 跳过签署前置页（当前用户登录已实名时有效），默认false
my.navigateTo({
  url: `plugin://esign/esign?flowId=${flowId}&thirdPartyUserId=${thirdPartyUserId}&skipResult=${skipResult}&skipGuide=${skipGuide}`,
})

my.navigateToMiniProgram({
// 合同管家小程序的appid，固定值请勿修改   
appId: '2021001108663491',  
// 合同管家跳转地址和参数，flowId为 创建合同签署流程 时返回的参数  
path: 'pages/login/index?flowId=flowId'     
success: (res) => {
        console.log(JSON.stringify(res))
      },
      fail: (res) => {
        console.log(JSON.stringify(res))
      }
    });

alipays://platformapi/startapp?appId=2018031602388641&page=pages/components/orderDetail/orderDetail?outOrderNo=

alipays://platformapi/startapp?appId=2018031602388641&page=pages/components/orderDetail/orderDetail?outOrderNo=platform_order_no