Home/ Questions/Q 8273511
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-08T07:30:36+00:00

There is a ‘#’ char exists in my query key like below: 17\#30\#36\#94\#35 So

  • 0

There is a ‘#’ char exists in my query key like below:

17\#30\#36\#94\#35

So a query url will be generated as:http://10.251.25.12:8080/commentindex/comment/select?q=17\#30\#36\#94\#35&rows=200&wt=json. You can see, the url will be truncated before sending to server because of ‘#’ existing, and I will get error result, error rows count, error doc type(not json I set).

For the above instance, I encoded the url as http://10.251.25.12:8080/commentindex/comment/select?q=17%5c%2330%5c%2336%5c%2394%5c%2335&rows=200&wt=json. Everything goes as my expect. However, I encounter another error if query key looked like:

←\~\\(≧▽≦\)\/\~！！|

Url will be generated as:

http://10.251.25.12:8080/commentindex/comment/select?q=%e2%86%90%5c%7e%5c%5c(%e2%89%a7%e2%96%bd%e2%89%a6%5c)%5c%2f%5c%7e%ef%bc%81%ef%bc%81%7c&rows=200&wt=json

Do you find the parentheses? It’s special char in solr query! 400 bad request I will get from the url.

I noticed that all of query key has been escaped with ‘\’, so if I should not encode whole url and only encode ‘#’ char? Is there any other special char I should note?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    These are the special characters in Lucene/Solr:

    + - && || ! ( ) { } [ ] ^ " ~ * ? : \

    and of course characters like # that have a special meaning in URLs. If you want to search for any literal character among the above you must escape it. This list is from http://lucene.apache.org/core/3_6_0/queryparsersyntax.html#Escaping%20Special%20Characters.

    • 0