String replace using replace first method

Question

I was trying to use the string replace with another, it doesn't happen.

String requestURI = "/webapps-ab/public/Test.jsp"
String contextName = "webapps-ab";
String newRequestURI = requestURI.replaceFirst(contextName,"webapps");

I am expecting newRequestURI to be "/webapps/public/Test.jsp".

pb2q · Accepted Answer · 2012-09-05 18:34:59Z

3

Your replace call should be:

String newRequestURI = requestURI.replaceFirst(contextName, "webapps");

Using:

String requestURI = "/webapps-ab/public/Test.jsp";
String contextName = "webapps-ab";
String newRequestURI = requestURI.replaceFirst(contextName, "webapps");
System.out.println("newRequestURI: " + newRequestURI);

The output will be what you're expecting:

newRequestURI: /webapps/public/Test.jsp

ideone example.

edited Sep 5, 2012 at 18:34

answered Sep 5, 2012 at 18:23

pb2q

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4 Comments

1078081 Over a year ago

I tried the same piece of code but still see the old request URI. Does '/' make any difference.

pb2q Over a year ago

@1078081 you must have typos remaining. See the link to the ideone version producing the expected output

Joe K Over a year ago

I am running the code exactly as pb2q has posted it and am seeing the correct output. Could you please post what the exact code is you're running?

1078081 Over a year ago

It it working now. In my real code, I didn't notice that there are some upper case letters. Thank you

FThompson · Accepted Answer · 2012-09-05 18:24:27Z

0

When referencing a variable, do not surround it in quotes, as that converts it into a literal String object.

String newRequestURI = requestURI.replaceFirst(contextName, "webapps");

answered Sep 5, 2012 at 18:24

FThompson

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