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Added and configured groupdocs-viewer-ui v23.7.
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‎samples/groupdocs-viewer-java-ui-spring-boot/files/GroupDocs_Demo.pdf‎

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‎samples/groupdocs-viewer-java-ui-spring-boot/pom.xml‎

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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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<dependency>
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<groupId>com.groupdocs</groupId>
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<artifactId>groupdocs-viewer-ui</artifactId>
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<version>23.7</version>
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</dependency>
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<dependency>
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<groupId>com.groupdocs</groupId>
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<artifactId>groupdocs-viewer</artifactId>
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<version>23.7</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>2.13.4.1</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-annotations</artifactId>
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<version>2.13.3</version>
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</dependency>
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</dependencies>
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<build>
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</plugins>
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</build>
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<repositories>
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<repository>
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<id>releases.groupdocs.com</id>
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<name>releases.groupdocs</name>
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<url>https://releases.groupdocs.com/java/repo/</url>
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</repository>
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</repositories>
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</project>

‎samples/groupdocs-viewer-java-ui-spring-boot/src/main/java/com/example/groupdocsviewerjavauispringboot/DemoApplication.java‎

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package com.example.groupdocsviewerjavauispringboot;
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import com.groupdocs.viewerui.handler.JakartaViewerEndpointHandler;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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@SpringBootApplication
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public class DemoApplication {
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private final JakartaViewerEndpointHandler _viewerEndpointHandler;
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public DemoApplication(JakartaViewerEndpointHandler endpointHandler) {
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this._viewerEndpointHandler = endpointHandler;
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}
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@RequestMapping("/")
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String home() {
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return "<html><body><p>groupdocs-viewer-java-ui-spring-boot</p><p><a href=\"/viewer/\">Open GroupDocs.Viewer page</a></p><body/></html>";
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}
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@GetMapping({ ViewerConfiguration.VIEWER_UI_PATH, ViewerConfiguration.VIEWER_UI_PATH + "/**",
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ViewerConfiguration.VIEWER_CONFIG_ENDPOINT, ViewerConfiguration.VIEWER_CONFIG_ENDPOINT + "/**",
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ViewerConfiguration.VIEWER_API_ENDPOINT, ViewerConfiguration.VIEWER_API_ENDPOINT + "/**" })
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public void handleViewerUiRequest(HttpServletRequest request, HttpServletResponse response) {
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this._viewerEndpointHandler.handleViewerRequest(request, response);
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}
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@PostMapping({ ViewerConfiguration.VIEWER_API_ENDPOINT, ViewerConfiguration.VIEWER_API_ENDPOINT + "/**" })
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public void handleViewerApiRequest(HttpServletRequest request, HttpServletResponse response) {
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this._viewerEndpointHandler.handleViewerRequest(request, response);
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}
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public static void main(String[] args) {
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SpringApplication.run(DemoApplication.class, args);
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}

‎samples/groupdocs-viewer-java-ui-spring-boot/src/main/java/com/example/groupdocsviewerjavauispringboot/ViewerConfiguration.java‎

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package com.example.groupdocsviewerjavauispringboot;
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import com.groupdocs.viewerui.handler.JakartaViewerEndpointHandler;
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import com.groupdocs.viewerui.ui.core.ViewerType;
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import jakarta.annotation.PostConstruct;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import java.nio.file.Paths;
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@Configuration
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public class ViewerConfiguration {
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public static final String VIEWER_UI_PATH = "/viewer";
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public static final String VIEWER_CONFIG_ENDPOINT = "/viewer-config";
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public static final String VIEWER_API_ENDPOINT = "/viewer-api";
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private JakartaViewerEndpointHandler _viewerEndpointHandler;
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@PostConstruct
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public void init() {
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_viewerEndpointHandler = JakartaViewerEndpointHandler
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.setupGroupDocsViewer((viewerConfig, config) -> {
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viewerConfig.setViewerType(ViewerType.PNG);
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config.setPreloadPageCount(2);
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config.setBaseUrl("http://localhost:8080");
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})
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.setupGroupDocsViewerUI(uiOptions -> {
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uiOptions.setUiPath(VIEWER_UI_PATH);
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uiOptions.setUiConfigEndpoint(VIEWER_CONFIG_ENDPOINT);
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})
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.setupGroupDocsViewerApi(apiOptions -> {
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apiOptions.setApiEndpoint(VIEWER_API_ENDPOINT);
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})
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.setupLocalStorage(Paths.get("./files").toAbsolutePath())
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.setupInMemoryCache(inMemoryCacheConfig -> {
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inMemoryCacheConfig.setGroupCacheEntriesByFile(false);
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inMemoryCacheConfig.setCacheEntryExpirationTimeoutMinutes(3);
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})
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// .setupLocalCache(cacheConfig -> {
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// cacheConfig.setCachePath(Paths.get("/home/liosha/workspace/groupdocs/files/cache"));
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// })
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;
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}
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@Bean
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public JakartaViewerEndpointHandler viewerEndpointHandler() {
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return _viewerEndpointHandler;
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}
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}

‎samples/groupdocs-viewer-java-ui-spring-boot/src/main/resources/logback.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<configuration>
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<property name="LOGS" value="./logs" />
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<appender name="Console"
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class="ch.qos.logback.core.ConsoleAppender">
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<layout class="ch.qos.logback.classic.PatternLayout">
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<Pattern>
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%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1}): %msg%n%throwable
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</Pattern>
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</layout>
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</appender>
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<appender name="RollingFile"
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class="ch.qos.logback.core.rolling.RollingFileAppender">
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<file>${LOGS}/spring-boot-logger.log</file>
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<encoder
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class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
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<Pattern>%d %p %C{1} [%t] %m%n</Pattern>
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</encoder>
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<rollingPolicy
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class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
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<!-- rollover daily and when the file reaches 10 MegaBytes -->
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<fileNamePattern>${LOGS}/archived/spring-boot-logger-%d{yyyy-MM-dd}.%i.log
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</fileNamePattern>
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<timeBasedFileNamingAndTriggeringPolicy
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class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
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<maxFileSize>10MB</maxFileSize>
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</timeBasedFileNamingAndTriggeringPolicy>
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</rollingPolicy>
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</appender>
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<!-- LOG everything at INFO level -->
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<root level="info">
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<appender-ref ref="RollingFile" />
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<appender-ref ref="Console" />
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</root>
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<!-- LOG "com.baeldung*" at TRACE level -->
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<logger name="com.groupdocs" level="debug" additivity="false">
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<appender-ref ref="RollingFile" />
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<appender-ref ref="Console" />
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</logger>
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</configuration>

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