Send an Array with an HTTP Get

Question

How can i send an Array with a HTTP Get request   I m Using GWT client to send the request

User · Answer

I know this post is really old  but I have to reply because although BalusC s answer is marked as correct  it s not completely correct   You have to write the query adding      to foo like this   foo   val1 amp foo   val2 amp foo   val3

User · Answer

That depends on what the target server accepts  There is no definitive standard for this  See also a o  Wikipedia  Query string      While there is no definitive standard  most web frameworks allow multiple values to be associated with a single field  e g  field1 value1 amp field1 value2 amp field2 value3   4  5    Generally  when the target server uses a strong typed programming language like Java  Servlet   then you can just send them as multiple parameters with the same name  The API usually offers a dedicated method to obtain multiple parameter values as an array   foo value1 amp foo value2 amp foo value3     String   foo   request getParameterValues  foo        value1  value2  value3    The request getParameter  foo   will also work on it  but it ll return only the first value   String foo   request getParameter  foo       value1   And  when the target server uses a weak typed language like PHP or RoR  then you need to suffix the parameter name with braces    in order to trigger the language to return an array of values instead of a single value   foo   value1 amp foo   value2 amp foo   value3      foo     GET  foo        value1  value2  value3  echo is array  foo      true   In case you still use foo value1 amp foo value2 amp foo value3  then it ll return only the first value    foo     GET  foo       value1 echo is array  foo      false   Do note that when you send foo   value1 amp foo   value2 amp foo   value3 to a Java Servlet  then you can still obtain them  but you d need to use the exact parameter name including the braces   String   foo   request getParameterValues  foo          value1  value2  value3

[java] Send an Array with an HTTP Get

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