該方法可以檢視工作流模型的設計圖
public void QueryPNG(string method, SyncContext context)
{
//method = "/process-definition/FileAuthUser:14:6962/diagram";// 測試擷取流程圖的圖檔
var api = new WFOperator(context.Context);//執行個體化工作流對象
var content = api.Call(Method.GET, method, null);
byte[] data = content.RawBytes;//擷取到的資料
if (Encoding.Default.GetString(data).Contains("error"))
{
string errorMessage = Encoding.Default.GetString(data);
JObject error = JObject.Parse(errorMessage);
// 抛出異常資訊,用戶端顯示
throw new Exception("圖檔資源通路錯誤:" + error.Value<string>("errorMessage"));
}
//将擷取到的流程圖下載下傳下載下傳到本地
var response = context.Response;
response.ClearContent();
response.ContentType = "image/png";
response.AddHeader("Content-Disposition", "attachment;filename=1.png");
response.AddHeader("Content-Length", data.Length.ToString(CultureInfo.InvariantCulture));
response.BinaryWrite(data);
response.Flush();
}
該方法可以檢視目前執行的工作流的執行個體圖,可以檢視目前執行的節點資訊
參數:string processId,
var method = "/process-instance/{0}/diagram";// 測試擷取流程圖的圖檔
method = string.Format(method, processId);
var context = syncContext;
var api = new WFOperator(context.Context);
var content = api.Call(Method.GET, method, null);
byte[] data = content.RawBytes;
if (Encoding.Default.GetString(data).Contains("error"))
{
string errorMessage = Encoding.Default.GetString(data);
JObject error = JObject.Parse(errorMessage);
// 抛出異常資訊,用戶端顯示
throw new Exception("圖檔資源通路錯誤:" + error.Value<string>("errorMessage"));
}
var response = context.Response;
response.ClearContent();
response.ContentType = "image/png";
response.AddHeader("Content-Disposition", "attachment;filename=1.png");
response.AddHeader("Content-Length", data.Length.ToString(CultureInfo.InvariantCulture));
response.BinaryWrite(data);
response.Flush();