Networkerror: 400 Bad Request

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When sending a post I received by retrofit in the log the message Networkerror: 400 Bad Request.

In Development Environment no error occurs, data is synchronized from device to Server ( Tomcat ) from my internal network successfully.

I published the system, on the device I configured the URL, and while trying to transmit the data I get Networkerror: 400 Bad Request

http://200.187.136.7:8080/nova/fw.rule?sys=TSE&usuario=teste&metodo=fw_addSessao&parametros=7b911e32-1432-45c3-8ee0-e316bad7a2f7|2|15/01/2017%2023:19:44|15/01/2017%2023:22:01|e8b5ed5c-d1bf-43c2-a7ad-cdb7699cc496|Outros|Teste%20|-7.99032|-34.8935

The parameters are:

sys=TSE

usuario=teste

metodo=fw_addSessao

parametros=7b911e32-1432-45c3-8ee0-e316bad7a2f7|2|15/01/2017%2023:19:44|15/01/2017%2023:22:01|e8b5ed5c-d1bf-43c2-a7ad-cdb7699cc496|Outros|Teste%20|-7.99032|-34.8935

everything is sent in text, the last parameter has concatenated various information like Id of the record, latitude, longitude and I used as bounder the pipe "|" and for what I am noticing the problem is it, but in my internal network has no problem with its use.

java android retrofit

  • You say that in Amabiente development does not occur errors, that means that when available for production this error happens? You checked if the URL is correct?

  • Yes the url is correct, and once I got it from the AE log, I did the following where the "|" was changed to ";" then the error became the 500 that indicates an error in the Server or POST arrived on the server and as my rule of business waits for a delimiter and arrived another the routine broke.

  • Try using the URL ENCODE. This problem you are giving is a request. You are not making the request correctly on the server.

  • See: http://www.url-encode-decode.com/

  • Hello Ack Lay good afternoon, understood well would be to pick up the text where I have several concatenated information and make a meeting on it? and on the server a Decode?

  • Exactly. Try this, maybe there are some characters that are conflicting with default characters of the URL and is giving problem in the interpretation.

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The mistake 400 Bad Request occurs when server cannot understand and process the corresponding request. Once you have checked if the server URL is actually correct, a possible solution is to encode the parameters using the class Urlencoder, so that it doesn’t conflict with some reserved character. See how it would look:

String parametroCodificado = URLEncoder.encode("?sys=TSE&usuario=teste&metodo=fw_addSessao&parametros=7b911e32-1432-45c3-8ee0-e316bad7a2f7|2|15/01/2017%2023:19:44|15/01/2017%2023:22:01|e8b5ed5c-d1bf-43c2-a7ad-cdb7699cc496|Outros|Teste%20|-7.99032|-34.8935", "utf-8");
String url = "http://200.187.136.7:8080/nova/fw.rule" + parametroCodificado ;

For more details on URLEncoder, see in the documentation.

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    My dear Ack Lay, you were absolutely right, thank you very much man, thanks even, saved the day

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