SpringAI基于Mysql jdbc方式存储对话记忆

版本
SpringAI：1.1.6
SpringBoot：3.5.14

JdbcChatMemoryRepository

JdbcChatMemoryRepository是一个内置实现，使用 JDBC 将消息存储在关系数据库中。
下面所有配置完成后，应用会在启动时，会读取内置建表语句，schema-mysql.sql，自动创建一张名为 spring_ai_chat_memory 的表，用于存储对话记录
IDEA中双击shift搜索schema-mysql.sql，就能看到建表语句。

使用

引入依赖

 <!-- 引入jdbc -->
 <dependency>
     <groupId>org.springframework.ai</groupId>
     <artifactId>spring-ai-starter-model-chat-memory-repository-jdbc</artifactId>
 </dependency>
 <!-- 引入mysql -->
 <dependency>
     <groupId>com.mysql</groupId>
     <artifactId>mysql-connector-j</artifactId>
     <scope>runtime</scope>
 </dependency>

修改配置

使用的是阿里云百炼平台中的大模型，配置如下

spring.ai.chat.memory.repository.jdbc.initialize-schema有三个选项

• embedded：默认值，只能用于嵌入式数据库（如 H2、HSQL、Derby 等）
• always：自动使用内置sql创建表
• never：不初始化，手动创建自定义表

spring.ai.chat.memory.repository.jdbc.platform的值，是你的数据库类型，当initialize-schema=always时，springai会根据platform使用对应的schema-{platform}.sql文件建表

spring.ai.openai.chat.api-key=
spring.ai.openai.chat.base-url=https://dashscope.aliyuncs.com/compatible-mode
spring.ai.openai.chat.options.model=deepseek-v4-flash

spring.ai.chat.memory.repository.jdbc.initialize-schema=always 
spring.ai.chat.memory.repository.jdbc.platform=mysql

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/ai_demo
spring.datasource.username=root
spring.datasource.password=1111
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

代码

package com.cry.chatmemorymysql.controller;

import org.springframework.ai.chat.client.ChatClient;
import org.springframework.ai.chat.client.advisor.MessageChatMemoryAdvisor;
import org.springframework.ai.chat.memory.ChatMemory;
import org.springframework.ai.chat.memory.MessageWindowChatMemory;
import org.springframework.ai.chat.memory.repository.jdbc.JdbcChatMemoryRepository;
import org.springframework.ai.chat.messages.Message;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
public class ChatMemoryMysqlController {
    private ChatClient chatClient;
    private JdbcChatMemoryRepository chatMemoryRepository;
    public ChatMemoryMysqlController(ChatClient.Builder builder, JdbcChatMemoryRepository chatMemoryRepository) {
        this.chatMemoryRepository = chatMemoryRepository;
        // 创建聊天存储器
        ChatMemory chatMemory = MessageWindowChatMemory.builder()
                .chatMemoryRepository(chatMemoryRepository)
                .maxMessages(5) // 数据库中同一id，最多保存5条
                .build();
        this.chatClient = builder
                .defaultAdvisors(MessageChatMemoryAdvisor.builder(chatMemory).build()) // 使用聊天存储器
                .build();
    }

    @GetMapping("/chat")
    public String chat(@RequestParam(value = "message",defaultValue = "你是谁") String message,@RequestParam(value = "chatId",defaultValue = "1") String chatId) {
        return chatClient.prompt(message)
                // 设置会话id
                .advisors(advisorSpec -> advisorSpec.param(ChatMemory.CONVERSATION_ID, chatId))
                .call()
                .content();
    }

    @GetMapping("/chat/list")
    public List<String> chatList() {
        return chatMemoryRepository.findConversationIds();
    }

    @GetMapping("/chat/history")
    public List<Message> chatHistory(@RequestParam(value = "chatId",defaultValue = "1") String chatId) {
        return chatMemoryRepository.findByConversationId(chatId);
    }
}

验证

http://localhost:8080/chat?message=我是ccc&chatId=1
http://localhost:8080/chat?message=我是谁&chatId=1