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feat: add JSoup HTML document reader
This commit introduces the `JsoupDocumentReader` and `JsoupDocumentReaderConfig` classes, which provide functionality to read and parse HTML documents using the JSoup library. The reader supports: - Extracting text from specific HTML elements using CSS selectors. - Extracting all text from the body of the document. - Grouping text by element. - Extracting metadata, including the document title, meta tags, and link URLs. - Reading from various resource types (files, URLs, byte arrays). - Configurable character encoding, selector, separator, and metadata extraction. This new reader enhances Spring AI's ability to process web content and other HTML-based data sources. Signed-off-by: Alexandros Pappas <[email protected]>
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‎document-readers/jsoup-reader/ README.md‎

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# Spring AI JSoup Document Reader
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This module provides an HTML document reader for the Spring AI project. It leverages the [JSoup](https://jsoup.org/) library to parse HTML content and extract text and metadata, making it suitable for use in AI applications.
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## Features
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* **Flexible Text Extraction:**
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* Extract all text from the `<body>` of an HTML document.
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* Extract text from specific elements using CSS selectors.
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* Group text by element, creating a separate document for each selected element.
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* Combine text from multiple selected elements using a configurable separator.
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* **Metadata Extraction:**
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* Extract the document title.
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* Extract content from `<meta>` tags (e.g., description, keywords). You can specify which meta tags to extract.
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* Extract a list of all absolute URLs of links (`<a href="...">`) within the document.
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* **Configurable:**
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* Specify the character encoding (defaults to UTF-8).
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* Customize the CSS selector for element selection.
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* Configure the separator string for joining text from multiple elements.
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* Choose whether to extract all text or use element-based extraction.
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* Enable/disable link URL extraction.
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* Add additional metadata using configuration.
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* **Resource-Based:** Works with Spring's `Resource` abstraction, allowing you to read HTML from files, classpath resources, URLs, and even in-memory byte arrays.
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---
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#### How to Build:
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```bash
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./mvnw -pl document-readers/jsoup-reader clean install
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```

‎document-readers/jsoup-reader/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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~ Copyright 2025-2025 the original author or authors.
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~
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~ Licensed under the Apache License, Version 2.0 (the "License");
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~ you may not use this file except in compliance with the License.
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~ You may obtain a copy of the License at
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~
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~ https://www.apache.org/licenses/LICENSE-2.0
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~
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~ Unless required by applicable law or agreed to in writing, software
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~ distributed under the License is distributed on an "AS IS" BASIS,
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~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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~ See the License for the specific language governing permissions and
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~ limitations under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.ai</groupId>
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<artifactId>spring-ai</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>../../pom.xml</relativePath>
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</parent>
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<artifactId>spring-ai-jsoup-document-reader</artifactId>
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<packaging>jar</packaging>
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<name>Spring AI Document Reader - HTML</name>
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<description>Spring AI HTML document reader</description>
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<url>https://github.com/spring-projects/spring-ai</url>
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<scm>
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<url>https://github.com/spring-projects/spring-ai</url>
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<connection>git://github.com/spring-projects/spring-ai.git</connection>
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<developerConnection>[email protected]:spring-projects/spring-ai.git</developerConnection>
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</scm>
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<dependencies>
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<dependency>
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<groupId>org.springframework.ai</groupId>
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<artifactId>spring-ai-core</artifactId>
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<version>${project.parent.version}</version>
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</dependency>
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<dependency>
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<groupId>org.jsoup</groupId>
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<artifactId>jsoup</artifactId>
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<version>1.18.3</version>
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</dependency>
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<!-- TESTING -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎document-readers/jsoup-reader/src/main/java/org/springframework/ai/reader/jsoup/JsoupDocumentReader.java‎

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/*
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* Copyright 2025-2025 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.ai.reader.jsoup;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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import org.jsoup.Jsoup;
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import org.jsoup.nodes.Element;
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import org.jsoup.select.Elements;
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import org.springframework.ai.document.Document;
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import org.springframework.ai.document.DocumentReader;
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import org.springframework.ai.reader.jsoup.config.JsoupDocumentReaderConfig;
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import org.springframework.core.io.DefaultResourceLoader;
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import org.springframework.core.io.Resource;
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/**
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* Reads HTML documents and extracts text content using JSoup.
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*
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* This reader provides options for selecting specific HTML elements to extract, handling
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* links, and extracting metadata. It leverages the JSoup library for parsing HTML.
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*
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* @see <a href="https://jsoup.org/">JSoup Website</a>
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* @author Alexandros Pappas
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*/
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public class JsoupDocumentReader implements DocumentReader {
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private final Resource htmlResource;
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private final JsoupDocumentReaderConfig config;
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public JsoupDocumentReader(String htmlResource) {
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this(new DefaultResourceLoader().getResource(htmlResource));
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}
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public JsoupDocumentReader(Resource htmlResource) {
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this(htmlResource, JsoupDocumentReaderConfig.defaultConfig());
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}
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public JsoupDocumentReader(String htmlResource, JsoupDocumentReaderConfig config) {
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this(new DefaultResourceLoader().getResource(htmlResource), config);
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}
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public JsoupDocumentReader(Resource htmlResource, JsoupDocumentReaderConfig config) {
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this.htmlResource = htmlResource;
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this.config = config;
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}
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@Override
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public List<Document> get() {
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try (InputStream inputStream = htmlResource.getInputStream()) {
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org.jsoup.nodes.Document doc = Jsoup.parse(inputStream, this.config.charset, "");
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List<Document> documents = new ArrayList<>();
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if (this.config.allElements) {
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// Extract text from all elements and create a single document
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String allText = doc.body().text(); // .body to exclude head
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Document document = new Document(allText);
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addMetadata(doc, document);
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documents.add(document);
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}
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else if (this.config.groupByElement) {
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// Extract text on a per-element base using the defined selector.
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Elements selectedElements = doc.select(this.config.selector);
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for (Element element : selectedElements) {
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String elementText = element.text();
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Document document = new Document(elementText);
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addMetadata(doc, document);
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// Do not add metadata from element to avoid duplication.
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documents.add(document);
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}
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}
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else {
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// Extract text from specific elements based on the selector
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Elements elements = doc.select(this.config.selector);
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String text = elements.stream().map(Element::text).collect(Collectors.joining(this.config.separator));
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Document document = new Document(text);
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addMetadata(doc, document);
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documents.add(document);
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}
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return documents;
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}
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catch (IOException e) {
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throw new RuntimeException("Failed to read HTML resource: " + htmlResource, e);
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}
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}
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private void addMetadata(org.jsoup.nodes.Document jsoupDoc, Document springDoc) {
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Map<String, Object> metadata = new HashMap<>();
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metadata.put("title", jsoupDoc.title());
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for (String metaTag : this.config.metadataTags) {
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String value = jsoupDoc.select("meta[name=" + metaTag + "]").attr("content");
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if (!value.isEmpty()) {
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metadata.put(metaTag, value);
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}
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}
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if (this.config.includeLinkUrls) {
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Elements links = jsoupDoc.select("a[href]");
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List<String> linkUrls = links.stream().map(link -> link.attr("abs:href")).toList();
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metadata.put("linkUrls", linkUrls);
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}
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// Use putAll to add all entries from additionalMetadata
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metadata.putAll(this.config.additionalMetadata);
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// Add all collected metadata to the Spring Document
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springDoc.getMetadata().putAll(metadata);
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}
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}

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