10 years, 7 months ago.

To Wei Zou

Hi Sir,

My name is Dorothy.

I have tried out the main.cpp that you wrote and I could successfully compile. Thank God.

But I have one problem:

My problem is I could not get the whole string of HTTP output page. Instead of that the output was repeated:

I edited your main.cpp and it is shown below:

1. include "mbed.h"

1. include "GPRSInterface.h"

1. include "HTTPClient.h"

1. define TEST_HTTP_GET 1

1. define PIN_TX P0_0

1. define PIN_RX P0_1

GPRSInterface gprs(PIN_TX,PIN_RX,9600,"shppd",NULL,NULL);

HTTPClient http;

char str[512];

int main()

{

gprs.init();

while(false == gprs.connect()) {

printf("gprs connect error\n");

wait(2);

}

successful DHCP

printf("IP Address is %s\n", gprs.getIPAddress());

int ret;

HTTPText inText(str, 512);

HTTPText outText(str);

1. if TEST_HTTP_GET

GET data

printf("\nTrying to fetch page...\n");

ret = http.get("http://www.mytransport.sg/busarrival/12101.json?_=1402902181703", str, 512);

if (!ret) {

printf("Page fetched successfully - read %d characters\n", strlen(str));

printf("Result: %s\n", str);

} else {

printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());

}

1. endif

gprs.disconnect();

return 0;

}

I was trying to get this output:

{"time":"16062014 150206","count":7,"bstop":"12101","info":

[{"wc2":"1","wc1":"1","bl2":"","bl1":"","arr2":"17","arr1":"5","bsvc":"52"},

{"wc2":"1","wc1":"1","bl2":"2","bl1":"1","arr2":"7","arr1":"3","bsvc":"61"},

{"wc2":"0","wc1":"0","bl2":"","bl1":"","arr2":"20","arr1":"9","bsvc":"74"},

{"wc2":"0","wc1":"0","bl2":"1","bl1":"1","arr2":"28","arr1":"11","bsvc":"75"},

{"wc2":"1","wc1":"1","bl2":"","bl1":"","arr2":"18","arr1":"5","bsvc":"151"},

{"wc2":"1","wc1":"0","bl2":"","bl1":"","arr2":"13","arr1":"6","bsvc":"154"},

{"wc2":"0","wc1":"0","bl2":"1","bl1":"1","arr2":"18","arr1":"9","bsvc":"184"}]}

But I could not produce the whole output but the output was repeated:

I got like this:

{"time":"16062014 150206","count":7,"bstop":"12101","info":

[{"wc2":"1","wc1":"1","bl2":"","bl1":"","arr2":"17","arr1":"5","bsvc

{"time":"16062014 150206","count":7,"bstop":"12101","info":

[{"wc2":"1","wc1":"1","bl2":"","bl1":"","arr2":"17","arr1":"5","bsvc

It was repeated:

May I kindly ask you that what would be the problems?

Thank you so much.

I am looking forward to hearing from you:D

Regards

Dorothy

Question relating to:

Last updated: 27 Feb 2014

1 14

wei zou / Seeed_HTTPClient_GPRSInterface_HelloWorld

this is a demo code for HTTPClient_GPRS library