Handling user queries without errors

When building an application that uses Solr, we usually pass the query that the user sent to Solr. Sometimes, we even allow users to send complex queries that contain Lucene special characters. Due to this, there are situations where the user provides malformed queries, and thus, Solr throws an exception when running such queries. We can alter this behavior by using a new query parser called Simple. This recipe will show you how to do this.

Getting ready

Before continuing to read this recipe, I suggest reading the Understanding and using the Lucene query language recipe from this chapter.

How to do it...

Let's look into how to handle user queries without errors using the following steps:

1. We start by creating a simple index structure that will allow us to easily illustrate the example. To do this, we place the following section in the schema.xml file:

   <field name="id" type="string" indexed="true" stored="true" required="true" />
   <field name="title"...