How to send a curl request in java

Question

I'm using a java WebService to send a curl request, this is my request :

curl -d "input = a b c d" 'localhost:8090/jobs?appName=Test40&classPath=fr.aid.cim.spark.JavaWord&sync=true&timeout=1000000000'

I don't know which library I should use and how I can write it in java. Can you please show me how to do it?

I'd use apache [HttpClient](https://hc.apache.org/httpcomponents-client-ga/index.html) — lance-java, Jan 15 '15 at 10:42
There is no such thing as a 'curl request'. Curl is a command line tool to do some form of an online request. — Gimby, Jan 15 '15 at 10:44
Possible duplicate [How to use cURL in Java?](http://stackoverflow.com/questions/2586975/how-to-use-curl-in-java) — Reimeus, Jan 15 '15 at 10:46
Ok thank you for your suggestions i will take a lokk. #Reimeus is not a duplication cause i saw it but i could'nt use it with localHost request !! — Amine CHERIFI, Jan 15 '15 at 10:50

DmitryKanunnikoff · Answer 1 · 2015-01-15T14:44:04.850

If you need execute console command (curl in this case):

Runtime runtime = Runtime.getRuntime();

try {
    Process process = runtime.exec("curl -d \"input = a b c d\" 'localhost:8090/jobs?appName=Test40&classPath=fr.aid.cim.spark.JavaWord&sync=true&timeout=1000000000'");
    int resultCode = process.waitFor();

    if (resultCode == 0) {
        // all is good
    } 
} catch (Throwable cause) {
    // process cause
}

UPDATE (according to your comment): Add folowing lines:

System.out.println("is: " + IOUtils.toString(process.getInputStream()));
System.out.println("es: " + IOUtils.toString(process.getErrorStream()));

What is the output? IOUtils can be found here.

Thank you for your answer, but my resultCode is allways = 6 ?? — Amine CHERIFI, Jan 15 '15 at 14:14

ikettu · Answer 2 · 2015-01-15T10:50:53.250

3

You should take look Apache HttpClient library. With HC Fluent component you can write something like:

Request.Post("http://localhost:8090/jobs?appName=Test40&classPath=fr.aid.cim.spark.JavaWord&sync=true&timeout=1000000000")
.execute().returnContent();

HC Fluent Javadocs

edited Jan 15 '15 at 10:50

answered Jan 15 '15 at 10:44

ikettu

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17

Thank you. But i got this error : java.lang.IllegalArgumentException: Illegal character in scheme name at index 4 – Amine CHERIFI Jan 15 '15 at 14:13
Pleace check the uri string that there is no extra characters etx. – ikettu Jan 15 '15 at 14:44
Did you get it working, or do you need further help? – ikettu Jan 28 '15 at 05:55

How to send a curl request in java

2 Answers2