How to get an HTTP query parameter, of array type, with Java

Question

In mule flow, I can write something like this:

 <set-variable variableName="aaa" value="#[message.inboundProperties['http.query.params'].getAll('a')]" doc:name="Get Query Param" />

If I try that in Java, I get an error "The method getAll(String) is undefined for the type Map":

 private String[] GetQueryParamValues(MuleMessage muleMessage, String parameterName) {
     Map<String, String> queryParams = muleMessage.getInboundProperty("http.query.params");
 
     return queryParams.getAll(parameterName);
 }

Answer 1

Best Answer

Oct 24, 2017 at 09:28 AM, rprins answered with:

Hi @Mladen Bukejlović ,

You are using the wrong Map class. Check the online API documentation for more details, but you should be using something like this:

 @Override
 public Object onCall(MuleEventContext eventContext) throws Exception {
     MuleMessage message = eventContext.getMessage();
     org.mule.module.http.internal.ParameterMap map = message.getInboundProperty("http.query.params");
     String name = map.get("name");
     message.setPayload("Hello " +name);
     return message;
 }

This example assumes a query parameter "name".

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mladenb · Oct 26, 2017 at 03:47 PM 0

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Thanks a lot Troy :) That did the trick :)

Answer 2

Oct 26, 2017 at 05:21 PM, anirban37 answered with:

@Mladen Bukejlović This is already asked many times in the forum and with little search you could have easily get it here :- https://forums.mulesoft.com/questions/2115/http-inbound-http-query-parameters-how-to-extract-it.html

Check the comment section under the answer

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How to get an HTTP query parameter, of array type, with Java

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