[QUESTION] Failure to call the interface 400 /dolphinscheduler/projects/{projectName}/executors/start-process-instance

[zengqinchris]

，请求 参数
{"processDefinitionId":14,"scheduleTime":"0 0 8 * * ? *","warningType":"FAILURE","failureStrategy":"CONTINUE","warningGroupId":1,"projectName":"online-test","processInstancePriority":"MEDIUM"}

调用接口的代码

public static String httpRequestUtils(String urlStr, String params, String requestMethod) {
        PrintWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        String url = SchedulerWorkflowConstants.DS_SCHEDULER_URL() + urlStr;
        try {
            URL reqUrl = new URL(url);
            HttpURLConnection conn = (HttpURLConnection)reqUrl.openConnection();
            conn.setRequestProperty("Content-Type", SchedulerWorkflowConstants.DS_SCHEDULER_CONTENT_TYPE());  //设置请求头
            conn.setRequestProperty("token", SchedulerWorkflowConstants.DS_SCHEDULER_TOKEN());
            //      conn.setRequestProperty("connection", "Keep-Alive");
            //      conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
            conn.setDoOutput(true);  //设置为true才可以使用conn.getOutputStream().write()
            conn.setDoInput(true); //可以使用conn.getInputStream().read();
            conn.setRequestMethod(requestMethod);
            if (!"".equals(params)) {
                out = new PrintWriter(conn.getOutputStream());  //写入参数
                out.print(params);    //设置参数，可以直接写&参数，也可以直接传入拼接好的
                out.flush();  // flush输出流的缓冲
            }
            conn.connect();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
            String line = in.readLine();
            while (line != null) {
                result.append(line);
                line = in.readLine();
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (out != null) {
                out.close();
            }
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return result.toString();
    }`
```


报错信息
`All insert ok : 2
start-process-instance params: {"processDefinitionId":14,"scheduleTime":"0 0 8 * * ? *","warningType":"FAILURE","failureStrategy":"CONTINUE","warningGroupId":1,"projectName":"online-test","processInstancePriority":"MEDIUM"}
java.io.IOException: Server returned HTTP response code: 400 for URL: http://xxxxxt:15681/dolphinscheduler/projects/online-test/executors/start-process-instance
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1900)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
	at com.wumii.data.platform.manager.service.meta.SchedulerWorkflowService.httpRequestUtils(SchedulerWorkflowService.java:260)
	at com.wumii.data.platform.manager.service.meta.SchedulerWorkflowService.startSchedulerWorkflowTask(SchedulerWorkflowService.java:220)
	at com.wumii.data.platform.manager.controller.meta.SchedulerWorkflowController.startSchedulerWorkflowTask(SchedulerWorkflowController.java:71)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:864)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655)
	at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:215)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:531)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:319)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:175)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:133)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:754)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:672)
	at java.lang.Thread.run(Thread.java:748)
start-process-instance msg: 
insert into scheduler_workflow (id,process_name, status, description, update_time, create_time) VALUES (?,?, ?, ?, ?, ?) on conflict (id) do nothing
All insert ok : 2
i`

[zengqinchris]

如果这个接口已经废除了，有没有新的接口可以使用？

[samz406]

/projects/{projectName}/executors/start-process-instance api is not abolished, you can use the postman tool to test, or manually run on the page, F12 to see the request parameters.

[zengqinchris]

已经解决，projects/online-test/executors/start-process-instance?processDefinitionId=14&failureStrategy=CONTINUE&warningType=FAILURE&warningGroupId=1&projectName=online-t
按照这种方式传递参数