u

code/ai-demo/.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+.kotlin
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

code/ai-demo/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/

code/ai-demo/.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

code/ai-demo/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="temurin-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

code/ai-demo/.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/../docusaurus" vcs="Git" />
+  </component>
+</project>

code/ai-demo/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>ai-demo</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>dev.langchain4j</groupId>
+            <artifactId>langchain4j-open-ai</artifactId>
+            <version>1.3.0</version>
+        </dependency>
+    </dependencies>
+
+</project>

code/ai-demo/src/main/java/org/example/Main.java

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+package org.example;
+
+import dev.langchain4j.data.message.ChatMessage;
+import dev.langchain4j.data.message.UserMessage;
+import dev.langchain4j.model.chat.ChatModel;
+import dev.langchain4j.model.openai.OpenAiChatModel;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Base64;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+
+        ChatModel chatModel = OpenAiChatModel
+                .builder()
+                .apiKey("sk-14a6915853e241d6a58f31f81ae96b65") // 安全起见最好用环境变量
+                .modelName("qwen3.5-plus")
+                .baseUrl("https://dashscope.aliyuncs.com/compatible-mode/v1")
+                .build();
+
+        // 记录开始时间
+        long startTime = System.nanoTime();
+
+
+        Path imagePath = Path.of("path/to/your/image.jpg"); // 替换为您的图片路径
+        byte[] imageBytes = Files.readAllBytes(imagePath);
+        String base64Image = Base64.getEncoder().encodeToString(imageBytes);
+
+        UserMessage userMessage = UserMessage.userMessage(
+                "请描述这张图片的内容。", // 文本部分
+                base64Image // 图片部分 (Base64格式)
+        );
+
+
+        String content = chatModel.chat(userMessage);
+
+        long endTime = System.nanoTime();
+
+        // 计算耗时（毫秒）
+        long durationMs = (endTime - startTime) / 1_000_000;
+
+        System.out.println("模型回答: " + content);
+        System.out.println("请求耗时: " + durationMs + " ms");
+    }
+}