springframework ai 初始化tool，代码链分析

以如下依赖为示例：

<dependency><groupId>org.springframework.ai</groupId><artifactId>spring-ai-starter-mcp-server-webflux</artifactId><version>1.1.0</version></dependency>

yaml配置

spring: ai: mcp: server: protocol: STATELESS name: xxx-streamable-mcp-server version: 1.0.0 type: SYNC instructions: "xxx" resource-change-notification: true tool-change-notification: true prompt-change-notification: true

StatelessToolCallbackConverterAutoConfiguration

无状态工具执行服务自动装配类

初始化工具tool

org.springframework.ai.mcp.server.common.autoconfigure.StatelessToolCallbackConverterAutoConfiguration#syncTools

将tool作为参数，创建McpStatelessAsyncServer

org.springframework.ai.mcp.server.common.autoconfigure.McpServerStatelessAutoConfiguration#mcpStatelessSyncServer
io.modelcontextprotocol.server.McpServer.StatelessSyncSpecification#build
io.modelcontextprotocol.server.McpStatelessAsyncServer#McpStatelessAsyncServer（设置handler）

查询工具列表处理类

io.modelcontextprotocol.server.McpStatelessAsyncServer#toolsListRequestHandler

McpServerStatelessWebFluxAutoConfiguration

McpServerStatelessWebFluxAutoConfiguration 作用是将指定的endpoint暴露出去

@AutoConfiguration( before = {McpServerStatelessAutoConfiguration.class} ) @ConditionalOnClass({McpSchema.class}) @EnableConfigurationProperties({McpServerStreamableHttpProperties.class}) @Conditional({McpServerStdioDisabledCondition.class, McpServerStatelessAutoConfiguration.EnabledStatelessServerCondition.class}) public class McpServerStatelessWebFluxAutoConfiguration { @Bean @ConditionalOnMissingBean public WebFluxStatelessServerTransport webFluxStatelessServerTransport(@Qualifier("mcpServerObjectMapper") ObjectMapper objectMapper, McpServerStreamableHttpProperties serverProperties) { return WebFluxStatelessServerTransport.builder().jsonMapper(new JacksonMcpJsonMapper(objectMapper)).messageEndpoint(serverProperties.getMcpEndpoint()).build(); } @Bean @ConditionalOnMissingBean( name = {"webFluxStatelessServerRouterFunction"} ) public RouterFunction<?> webFluxStatelessServerRouterFunction(WebFluxStatelessServerTransport webFluxStatelessTransport) { return webFluxStatelessTransport.getRouterFunction(); } }

RouterFunction用的很巧妙

todo~~