基于和风天气API的一个获取实时天气的MCP服务端，使用Java来实现。和风天气API文档：https://dev.qweather.com/docs/api/weather/weather-now/
- 获取实时天气
getWeather
- 下载项目到本地
- 打包项目，生成jar包
mvn clean package -Dmaven.test.skip=true
{
"mcpServers": {
"mcp-server-weather": {
"command": "java",
"args": [
"-Dspring.ai.mcp.server.stdio=true",
"-jar",
"你的jar包路径",
"--weather.api.api-key=YOUR API KEY"
]
}
}
}引入依赖：
<dependency>
<groupId>dev.langchain4j</groupId>
<artifactId>langchain4j</artifactId>
</dependency>
<dependency>
<groupId>dev.langchain4j</groupId>
<artifactId>langchain4j-open-ai</artifactId>
</dependency>
<dependency>
<groupId>dev.langchain4j</groupId>
<artifactId>langchain4j-mcp</artifactId>
</dependency> /**
* 阿里云的模型
*
* @return
*/
@Bean
public ChatLanguageModel chatLanguageModel() {
return OpenAiChatModel.builder()
.apiKey(System.getenv("AI_DASHSCOPE_API_KEY"))
.modelName("qwen-turbo")
.logRequests(true)
.logResponses(true)
.baseUrl("https://dashscope.aliyuncs.com/compatible-mode/v1")
.build();
}
/**
* 初始化MCP Client
*/
@Bean
public McpClient mcpClientWeather() {
return new DefaultMcpClient.Builder()
.transport(new StdioMcpTransport.Builder()
.command(List.of(
"java",
"-Dspring.ai.mcp.server.stdio=true",
"-jar",
"mcp-server-weather-0.0.1-SNAPSHOT.jar",
"--weather.api.api-key=%s".formatted(System.getenv("HEFENG_WEATHER_API_KEY"))))
.logEvents(true) // only if you want to see the traffic in the log
.build())
.build();
}
/**
* 使用LangChain4J的高级API来构建一个AI助手，注入MCP Client
* @param mcpClientWeather
* @return
*/
@Bean
public AiAssistant aiAssistant(McpClient mcpClientWeather) {
ToolProvider toolProvider = McpToolProvider.builder()
.mcpClients(List.of(mcpClientWeather))
.build();
return AiServices.builder(AiAssistant.class)
.chatLanguageModel(chatLanguageModel())
.chatMemory(MessageWindowChatMemory.withMaxMessages(10))
.toolProvider(toolProvider)
.build();
}
@Test
public void testWeather1(){
System.out.println(aiAssistant.chat("今天重庆的天气怎么样？"));
/**
* AI回复以下内容：
*
*
* 今天重庆的天气情况如下：
- 天气状况：阴
- 气温：18℃
- 体感温度：16℃
- 风向：东风
- 风力：2级
- 湿度：47%
- 降水量：0.0mm
- 空气压力：980hPa
- 能见度：9km
- 云量：91%
*/
}