1、pom
<properties>
<java.version>17</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>3.2.0</spring-boot.version>
<spring-ai.version>1.0.0</spring-ai.version>
<spring-ai-alibaba.version>1.0.0.2</spring-ai-alibaba.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- 阿里云通义千问（DashScope）starter -->
<dependency>
<groupId>com.alibaba.cloud.ai</groupId>
<artifactId>spring-ai-alibaba-starter-dashscope</artifactId>
</dependency>
<!--对话记忆 chat-memory-->
<dependency>
<groupId>org.springframework.ai</groupId>
<artifactId>spring-ai-autoconfigure-model-chat-memory</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- 统一管理Spring AI依赖版本 -->
<dependency>
<groupId>org.springframework.ai</groupId>
<artifactId>spring-ai-bom</artifactId>
<version>${spring-ai.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud.ai</groupId>
<artifactId>spring-ai-alibaba-bom</artifactId>
<version>${spring-ai-alibaba.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<!-- Spring AI 里程碑/快照仓库（必须配置，否则依赖无法下载） -->
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>2、yml
#server.port=18081
#spring.ai.dashscope.api-key="sk-72d9fd311cde487eb948bcd999ea4a65"
#spring.ai.dashscope.chat.options.model= sk-8718a83408d7443b9544cdfbf259280f
#sk-72d9fd311cde487eb948bcd999ea4a65
server:
port: 18081
spring:
ai:
dashscope:
api-key: sk-8718a83408d7443bxxxxxxx
logging: #####日志级别
level:
org.springframework.ai.chat.client.advisor: debug
3、config
import org.springframework.ai.chat.memory.ChatMemory;
import org.springframework.ai.chat.memory.ChatMemoryRepository;
import org.springframework.ai.chat.memory.MessageWindowChatMemory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;@Configuration
public class config {@Bean
ChatMemory chatMemoryMax(ChatMemoryRepository chatMemoryRepository) {
return MessageWindowChatMemory
.builder()
// 自定义最大消息数，覆盖默认的20条 （2 轮用户 + 助手对话）
//保留最近 2 条消息。若超出则删除最早的消息
.maxMessages(2)
// 绑定持久化仓库（支持多用户会话隔离）
.chatMemoryRepository(chatMemoryRepository)
.build();
}
}
4、controller
import com.alibaba.cloud.ai.dashscope.chat.DashScopeChatModel;
import org.springframework.ai.chat.client.ChatClient;
import org.springframework.ai.chat.client.advisor.PromptChatMemoryAdvisor;
import org.springframework.ai.chat.memory.ChatMemory;
import org.springframework.ai.chat.memory.MessageWindowChatMemory;
import org.springframework.ai.chat.messages.Message;
import org.springframework.ai.chat.messages.UserMessage;
import org.springframework.ai.chat.model.ChatResponse;
import org.springframework.ai.chat.prompt.Prompt;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;import java.util.List;
@RequestMapping("/openai")
@ResponseBody
@Controller
public class ChatMemoryController {@Autowired
//保留最近 10 条消息。若超出则删除最早的消息
private ChatMemory chatMemoryMax;
/**
* 基于 ChatMemory max 历史对话长度
*/
@GetMapping("/simple/chatmemorymax")
public String chatmemory4 () {
// 1. 创建对话记忆（滑动窗口实现）
// ChatMemory chatMemory = MessageWindowChatMemory.builder()
// // 自定义最大消息数，覆盖默认的20条 （2 轮用户 + 助手对话）
// .maxMessages(10) //保留最近 2 条消息。若超出则删除最早的消息
// //对话历史存储
// .chatMemoryRepository(chatMemoryRepository)
// .build();
String conversationId = "lyd001"; // 对话唯一标识// First interaction
UserMessage userMessage1 = new UserMessage("我叫永乐帝");
chatMemory.add(conversationId, userMessage1);
ChatResponse response1 = chatModel.call(new Prompt(chatMemoryMax.get(conversationId)));
chatMemory.add(conversationId, response1.getResult().getOutput());
String content1 = String.valueOf(response1.getResult().getOutput());
System.out.println("【content1】：" + content1);
//Second interaction
UserMessage userMessage2 = new UserMessage("我叫什么?");
chatMemory.add(conversationId, userMessage2);
ChatResponse response2 = chatModel.call(new Prompt(chatMemoryMax.get(conversationId)));
chatMemory.add(conversationId, response2.getResult().getOutput());
String content2 = String.valueOf(response2.getResult().getOutput());
System.out.println("【content2】：" + content2);
//Three interaction
UserMessage userMessage3 = new UserMessage("我叫什么?");
chatMemory.add(conversationId, userMessage3);
ChatResponse response3 = chatModel.call(new Prompt(chatMemoryMax.get(conversationId)));
chatMemory.add(conversationId, response3.getResult().getOutput());
String content3 = String.valueOf(response3.getResult().getOutput());
System.out.println("【content3】：" + content3);
printChatHistory(chatMemoryMax.get(conversationId));return "【content1】:"+content1+"------------" +"【content2】:"+content2
+"------------" +"【content3】:"+content3+
";------------------------" +
"【基于 ChatMemoryMax(2)历史对话长度的历史信息】"+MessageChatHistory(chatMemoryMax.get(conversationId));
}// 封装：打印当前会话所有历史消息
private void printChatHistory(List<Message> messageList) {
System.out.println("----------------会话所有历史消息开始------------------------");
for (int i = 0; i < messageList.size(); i++) {
Message msg = messageList.get(i);
System.out.println("-------第"+(i+1)+"条["+msg.getMessageType()+"]：" + msg.getText());
}
System.out.println("-----------------会话所有历史消息结束-----------------------");
}private String MessageChatHistory(List<Message> messageList) {
String restr="";
System.out.println("----------------会话所有历史消息开始------------------------");
for (int i = 0; i < messageList.size(); i++) {
Message msg = messageList.get(i);
restr+="-------第【"+(i+1)+"】条["+msg.getMessageType()+"]：" + msg.getText();
}
System.out.println("-----------------会话所有历史消息结束-----------------------");
return restr;
}
}5、http://localhost:18081/openai/simple/chatmemorymaxcontent1\content2\content3 三轮对话, 限两轮历史对话记录.maxMessages(2)
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