org.apache.lucene.analysis.StandardAnalyzer无法解析

Question

When implementing tokenization by using Lucene a problem related to org.apache.lucene.analysis.StandardAnalyzer occurred as the following exception was thrown:

The import org.apache.lucene.analysis.StandardAnalyzer cannot be resolved

I added dependencies to Maven pom.xml (see below) but the same exception was thrown again.

I used those dependencies:

     <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-core</artifactId>
        <version>5.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-analyzers-common</artifactId>
        <version>5.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-queryparser</artifactId>
        <version>5.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-queries</artifactId>
        <version>5.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-test-framework</artifactId>
        <version>5.2.1</version>
    </dependency>

    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-analyzers</artifactId>
        <version>3.6.2</version>
    </dependency>

Answer 1

Remove the lucene-analyzers dependency.

You can't mix-and-match package versions with lucene, and the lucene-analyzers package is no longer used. You already have the dependency to lucene-analyzers-common , which is what you should be using.

Also, you need to import org.apache.lucene.analysis.standard.StandardAnalyzer , instead of org.apache.lucene.analysis.StandardAnalyzer .