Split String with Spring EL

Question

I needs to split string with value $$ in spring context xml file, I have tried below things, but no luck :( Anyone can help please?

In java it's working something like this,

public static void main(String[] args) {
        System.err.println("localhost$$8080".split("\\$\\$")[1]);
    }

My tries

<constructor-arg name="port" value="#{'#{config.getNode()}'.split('\\$\\$')[1]}" />
<constructor-arg name="port" value="#{'#{config.getNode()}'.split('$$')[1]}" />
<constructor-arg name="port" value="#{'#{config.getNode()}'.split('\$\$')[1]}" />
<constructor-arg name="port" value="#{'#{config.getNode()}'.split('\\u0024\\u0024')[1]}" />

NOTE : Please assume that config.getNode() will give value "localhost$$8080".

Hi @NehaShettar, it's not working :( – Vishal Zanzrukia Apr 14 '17 at 11:47 — Vishal Zanzrukia, Apr 14 '17 at 11:47

score 1 · Answer 1 · answered Apr 14 '17 at 12:01

1

Try something like this:

@Value("#{config.getNode().split('\\$\\$')[1]}")
private String port;

or in the XML:

<constructor-arg name="port" value="#{config.getNode().split('\\$\\$')[1]}" />

answered Apr 14 '17 at 12:01

Gabe

Interesting, just did a quick test from my end locally. What's the error raised? – Gabe Apr 14 '17 at 12:05
`ArrayIndexOutOfBound`, basically it's not considering splitter string, so everything goes into `[0]` part. – Vishal Zanzrukia Apr 14 '17 at 12:09
May be different spring version?? with which version have you tested? – Vishal Zanzrukia Apr 14 '17 at 12:10
Mine's 3.2.0-RELEASE. Oooh, out of interest, what happens when you print out `[0]` in the split, instead of `[1]`? – Gabe Apr 14 '17 at 12:11
Its giving me whole string – Vishal Zanzrukia Apr 14 '17 at 12:11
Interesting. Maybe try changing your `config.getNode()` to return `localhost:8080` first then change the split to use `:` and see if it works to debug the split. The only reason the split() would return the whole string is if it can't find the split string you used... – Gabe Apr 14 '17 at 12:21
that's the main problem @Gabe, we needs to find a solution for $$, however it's coming from other server, so I can't change it – Vishal Zanzrukia Apr 14 '17 at 12:26
Can you test your code with spring core version `5.0.0.M4` ? – Vishal Zanzrukia Apr 14 '17 at 12:26
if I use `##` as separator, the I can get proper value with `#{config.getNode().split('##')[1]}` – Vishal Zanzrukia Apr 14 '17 at 13:34

Vasu · Answer 2 · 2017-04-14T11:43:33.490

0

It should be like below:

 <constructor-arg name="port" 
      value="#{config.getNode().split('\\u0024\\u0024')[1]}" />

edited Apr 14 '17 at 11:43

answered Apr 14 '17 at 11:31

Vasu

Hi @javaguy, it will not work as I needs to access method, not property – Vishal Zanzrukia Apr 14 '17 at 11:33
You can try the updated answer, this works, tested with a method – Vasu Apr 14 '17 at 11:43
what is the error you are getting? For me it works fine – Vasu Apr 14 '17 at 12:12
`ArrayIndexOutOfBound`, basically it's not considering splitter string, so everything goes into `[0]` part. – Vishal Zanzrukia Apr 14 '17 at 12:13
Are you sure that your method returns `localhost$$8080`, just debug and double check that again which would be the issue, the string should be exactly like `localhost$$8080` without any quotes – Vasu Apr 14 '17 at 12:15
Yes, already double checked that thing before posting the question! It's returning me `127.0.0.1$$6379` – Vishal Zanzrukia Apr 14 '17 at 12:21
I am using spring core version `5.0.0.M4` can you test with that? – Vishal Zanzrukia Apr 14 '17 at 12:25
if I use `##` as separator, the I can get proper value with `#{config.getNode().split('##')[1]}` – Vishal Zanzrukia Apr 14 '17 at 13:34

2 Answers2