{"id":74621,"date":"2026-02-10T09:25:22","date_gmt":"2026-02-10T01:25:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/74621.html"},"modified":"2026-02-10T09:25:22","modified_gmt":"2026-02-10T01:25:22","slug":"%e9%ab%98%e7%ba%a7java%e6%af%8f%e6%97%a5%e4%b8%80%e9%81%93%e9%9d%a2%e8%af%95%e9%a2%98-2025%e5%b9%b46%e6%9c%8825%e6%97%a5-%e5%9f%ba%e7%a1%80%e7%af%87langchain4j-%e8%af%b7%e6%8f%8f%e8%bf%b0-langchain4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/74621.html","title":{"rendered":"\u9ad8\u7ea7java\u6bcf\u65e5\u4e00\u9053\u9762\u8bd5\u9898-2025\u5e746\u670825\u65e5-\u57fa\u7840\u7bc7[LangChain4j]-\u8bf7\u63cf\u8ff0 LangChain4j \u4e2d Tool (\u5de5\u5177) \u7684\u5b9a\u4e49\u65b9\u5f0f\uff0c@Tool \u6ce8\u89e3\u6709\u54ea\u4e9b\u6838\u5fc3\u53c2\u6570\uff1f"},"content":{"rendered":"

LangChain4j \u4e2d Tool \u7684\u5b9a\u4e49\u65b9\u5f0f\u4e0e @Tool \u6ce8\u89e3\u8be6\u89e3<\/h2>\n

\u5728 LangChain4j \u4e2d，Tool（\u5de5\u5177）\u5141\u8bb8\u5927\u8bed\u8a00\u6a21\u578b\u901a\u8fc7\u51fd\u6570\u8c03\u7528\u65b9\u5f0f\u4e0e\u5916\u90e8\u7cfb\u7edf\u3001API \u6216\u4e1a\u52a1\u903b\u8f91\u8fdb\u884c\u4ea4\u4e92，\u8fd9\u662f\u5b9e\u73b0 AI Agent \u529f\u80fd\u7684\u5173\u952e\u7ec4\u4ef6\u3002<\/p>\n

🛠\ufe0f Tool \u7684\u5b9a\u4e49\u65b9\u5f0f<\/h3>\n

\u65b9\u5f0f1：\u4f7f\u7528 @Tool \u6ce8\u89e3（\u6700\u5e38\u7528）<\/h4>\n

import<\/span> dev.<\/span>langchain4j.<\/span>agent.<\/span>tool.<\/span><\/span>Tool<\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>stereotype.<\/span><\/span>Component<\/span>;<\/span><\/p>\n

@Component<\/span>
\npublic<\/span> class<\/span> CalculatorTool<\/span> {<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "calculator"<\/span>,<\/span> description =<\/span> "\u6267\u884c\u6570\u5b66\u8ba1\u7b97，\u652f\u6301\u52a0\u3001\u51cf\u3001\u4e58\u3001\u9664\u3001\u5e42\u8fd0\u7b97"<\/span>)<\/span>
\n public<\/span> double<\/span> calculate<\/span>(<\/span>
\n @Tool.Memory<\/span> String<\/span> expression,<\/span> \/\/ \u4ece\u4e0a\u4e0b\u6587\u83b7\u53d6\u8868\u8fbe\u5f0f<\/span>
\n @Tool.P<\/span>(<\/span>"\u8fd0\u7b97\u7c7b\u578b"<\/span>)<\/span> String<\/span> operation,<\/span> \/\/ \u6307\u5b9a\u53c2\u6570\u63cf\u8ff0<\/span>
\n @Tool.P<\/span>(<\/span>"\u7b2c\u4e00\u4e2a\u6570\u5b57"<\/span>)<\/span> double<\/span> num1,<\/span>
\n @Tool.P<\/span>(<\/span>"\u7b2c\u4e8c\u4e2a\u6570\u5b57"<\/span>)<\/span> double<\/span> num2
\n )<\/span> {<\/span>
\n return<\/span> switch<\/span> (<\/span>operation.<\/span>toLowerCase<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
\n case<\/span> "add"<\/span>,<\/span> "+"<\/span> -><\/span> num1 +<\/span> num2;<\/span>
\n case<\/span> "subtract"<\/span>,<\/span> "-"<\/span> -><\/span> num1 –<\/span> num2;<\/span>
\n case<\/span> "multiply"<\/span>,<\/span> "*"<\/span> -><\/span> num1 *<\/span> num2;<\/span>
\n case<\/span> "divide"<\/span>,<\/span> "\/"<\/span> -><\/span> {<\/span>
\n if<\/span> (<\/span>num2 ==<\/span> 0<\/span>)<\/span> throw<\/span> new<\/span> IllegalArgumentException<\/span>(<\/span>"\u9664\u6570\u4e0d\u80fd\u4e3a\u96f6"<\/span>)<\/span>;<\/span>
\n yield<\/span> num1 \/<\/span> num2;<\/span>
\n }<\/span>
\n case<\/span> "power"<\/span>,<\/span> "^"<\/span> -><\/span> Math<\/span>.<\/span>pow<\/span>(<\/span>num1,<\/span> num2)<\/span>;<\/span>
\n default<\/span> -><\/span> throw<\/span> new<\/span> IllegalArgumentException<\/span>(<\/span>"\u4e0d\u652f\u6301\u7684\u64cd\u4f5c: "<\/span> +<\/span> operation)<\/span>;<\/span>
\n }<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u65b9\u5f0f2：\u5b9e\u73b0 Tool \u63a5\u53e3（\u66f4\u7075\u6d3b）<\/h4>\n

import<\/span> dev.<\/span>langchain4j.<\/span>agent.<\/span>tool.<\/span><\/span>Tool<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>agent.<\/span>tool.<\/span><\/span>ToolExecutionRequest<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>agent.<\/span>tool.<\/span><\/span>ToolSpecification<\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span><\/span>Optional<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> WeatherTool<\/span> implements<\/span> Tool<\/span> {<\/span><\/p>\n

@Override<\/span>
\n public<\/span> String<\/span> id<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> "weather-tool"<\/span>;<\/span>
\n }<\/span><\/p>\n

@Override<\/span>
\n public<\/span> ToolSpecification<\/span> specification<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> ToolSpecification<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>name<\/span>(<\/span>"getWeather"<\/span>)<\/span>
\n .<\/span>description<\/span>(<\/span>"\u83b7\u53d6\u6307\u5b9a\u57ce\u5e02\u7684\u5929\u6c14\u4fe1\u606f"<\/span>)<\/span>
\n .<\/span>addParameter<\/span>(<\/span>"city"<\/span>,<\/span> "string"<\/span>,<\/span> "\u57ce\u5e02\u540d\u79f0，\u5982：\u5317\u4eac\u3001\u4e0a\u6d77"<\/span>)<\/span>
\n .<\/span>addParameter<\/span>(<\/span>"date"<\/span>,<\/span> "string"<\/span>,<\/span> "\u65e5\u671f，\u683c\u5f0f：YYYY-MM-DD，\u9ed8\u8ba4\u4e3a\u4eca\u5929"<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

@Override<\/span>
\n public<\/span> Optional<\/span><<\/span>String<\/span>><\/span><\/span> execute<\/span>(<\/span>ToolExecutionRequest<\/span> request,<\/span> Object<\/span> memoryId)<\/span> {<\/span>
\n \/\/ \u89e3\u6790\u8bf7\u6c42\u53c2\u6570<\/span>
\n String<\/span> city =<\/span> request.<\/span>arguments<\/span>(<\/span>)<\/span>.<\/span>get<\/span>(<\/span>"city"<\/span>)<\/span>;<\/span>
\n String<\/span> date =<\/span> request.<\/span>arguments<\/span>(<\/span>)<\/span>.<\/span>getOrDefault<\/span>(<\/span>"date"<\/span>,<\/span> "today"<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u8c03\u7528\u5929\u6c14API<\/span>
\n String<\/span> weather =<\/span> fetchWeatherFromAPI<\/span>(<\/span>city,<\/span> date)<\/span>;<\/span><\/p>\n

return<\/span> Optional<\/span>.<\/span>of<\/span>(<\/span>weather)<\/span>;<\/span>
\n }<\/span><\/p>\n

private<\/span> String<\/span> fetchWeatherFromAPI<\/span>(<\/span>String<\/span> city,<\/span> String<\/span> date)<\/span> {<\/span>
\n \/\/ \u5b9e\u9645\u8c03\u7528\u5929\u6c14API\u7684\u903b\u8f91<\/span>
\n return<\/span> String<\/span>.<\/span>format<\/span>(<\/span>"%s\u5728%s\u7684\u5929\u6c14：\u6674，\u6e29\u5ea620-25\u00b0C"<\/span>,<\/span> city,<\/span> date)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u65b9\u5f0f3：\u4f7f\u7528 ToolBuilder（\u7f16\u7a0b\u5f0f\u6784\u5efa）<\/h4>\n

import<\/span> dev.<\/span>langchain4j.<\/span>agent.<\/span>tool.<\/span><\/span>ToolBuilder<\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span>function.<\/span><\/span>Function<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> StockTool<\/span> {<\/span><\/p>\n

public<\/span> Tool<\/span> createStockTool<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> ToolBuilder<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>name<\/span>(<\/span>"getStockPrice"<\/span>)<\/span>
\n .<\/span>description<\/span>(<\/span>"\u83b7\u53d6\u80a1\u7968\u5b9e\u65f6\u4ef7\u683c"<\/span>)<\/span>
\n .<\/span>parameter<\/span>(<\/span>"symbol"<\/span>,<\/span> "string"<\/span>,<\/span> "\u80a1\u7968\u4ee3\u7801，\u5982：AAPL, TSLA"<\/span>)<\/span>
\n .<\/span>execute<\/span>(<\/span>(<\/span>request,<\/span> memoryId)<\/span> -><\/span> {<\/span>
\n String<\/span> symbol =<\/span> request.<\/span>arguments<\/span>(<\/span>)<\/span>.<\/span>get<\/span>(<\/span>"symbol"<\/span>)<\/span>;<\/span>
\n double<\/span> price =<\/span> fetchStockPrice<\/span>(<\/span>symbol)<\/span>;<\/span>
\n return<\/span> Optional<\/span>.<\/span>of<\/span>(<\/span>String<\/span>.<\/span>format<\/span>(<\/span>"%s\u7684\u5f53\u524d\u4ef7\u683c\u662f：$%.2f"<\/span>,<\/span> symbol,<\/span> price)<\/span>)<\/span>;<\/span>
\n }<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

private<\/span> double<\/span> fetchStockPrice<\/span>(<\/span>String<\/span> symbol)<\/span> {<\/span>
\n \/\/ \u8c03\u7528\u80a1\u7968API<\/span>
\n return<\/span> 150.75<\/span>;<\/span> \/\/ \u793a\u4f8b\u6570\u636e<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

📝 @Tool \u6ce8\u89e3\u7684\u6838\u5fc3\u53c2\u6570\u8be6\u89e3<\/h3>\n

1. \u57fa\u672c\u53c2\u6570<\/h4>\n\n\u53c2\u6570\u7c7b\u578b\u5fc5\u586b\u9ed8\u8ba4\u503c\u63cf\u8ff0<\/tr>\n\n\n\n\n
name<\/td>\nString<\/td>\n\u5426<\/td>\n\u65b9\u6cd5\u540d<\/td>\n\u5de5\u5177\u7684\u552f\u4e00\u6807\u8bc6\u7b26，AI \u6839\u636e\u6b64\u540d\u79f0\u8c03\u7528<\/td>\n<\/tr>\n
value<\/td>\nString<\/td>\n\u5426<\/td>\n\u65b9\u6cd5\u540d<\/td>\nname \u7684\u522b\u540d，\u4e0e name \u4f5c\u7528\u76f8\u540c<\/td>\n<\/tr>\n
description<\/td>\nString<\/td>\n\u662f<\/td>\n\u65e0<\/td>\n\u5de5\u5177\u529f\u80fd\u7684\u8be6\u7ec6\u63cf\u8ff0，AI \u6839\u636e\u63cf\u8ff0\u51b3\u5b9a\u662f\u5426\u8c03\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. \u65b9\u6cd5\u53c2\u6570\u6ce8\u89e3<\/h4>\n

@Tool<\/span>(<\/span>name =<\/span> "orderTool"<\/span>,<\/span> description =<\/span> "\u5904\u7406\u5546\u54c1\u8ba2\u5355"<\/span>)<\/span>
\npublic<\/span> String<\/span> placeOrder<\/span>(<\/span>
\n \/\/ @P \u6ce8\u89e3：\u63d0\u4f9b\u53c2\u6570\u63cf\u8ff0<\/span>
\n @P<\/span>(<\/span>"\u5546\u54c1ID"<\/span>)<\/span> String<\/span> productId,<\/span><\/p>\n

\/\/ @P \u6ce8\u89e3：\u53ef\u6307\u5b9a\u66f4\u8be6\u7ec6\u7684\u63cf\u8ff0<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u8d2d\u4e70\u6570\u91cf"<\/span>,<\/span> required =<\/span> true<\/span>)<\/span> int<\/span> quantity,<\/span><\/p>\n

\/\/ @Tool.Memory：\u4ece\u4e0a\u4e0b\u6587\u4e2d\u83b7\u53d6\u503c<\/span>
\n @Tool.Memory<\/span> String<\/span> customerId,<\/span><\/p>\n

\/\/ \u9ed8\u8ba4\u503c\u5904\u7406<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u914d\u9001\u5730\u5740"<\/span>,<\/span> defaultValue =<\/span> "\u9ed8\u8ba4\u5730\u5740"<\/span>)<\/span> String<\/span> address,<\/span><\/p>\n

\/\/ \u590d\u6742\u53c2\u6570\u7c7b\u578b<\/span>
\n @P<\/span>(<\/span>"\u8ba2\u5355\u5907\u6ce8"<\/span>)<\/span> List<\/span><<\/span>String<\/span>><\/span><\/span> notes
\n)<\/span> {<\/span>
\n \/\/ \u4e1a\u52a1\u903b\u8f91<\/span>
\n return<\/span> String<\/span>.<\/span>format<\/span>(<\/span>"\u8ba2\u5355\u521b\u5efa\u6210\u529f：%s x %d"<\/span>,<\/span> productId,<\/span> quantity)<\/span>;<\/span>
\n}<\/span><\/p>\n

3. \u9ad8\u7ea7\u914d\u7f6e\u53c2\u6570<\/h4>\n

@Tool<\/span>(<\/span>
\n name =<\/span> "advanced_tool"<\/span>,<\/span>
\n description =<\/span> "\u8fd9\u662f\u4e00\u4e2a\u9ad8\u7ea7\u5de5\u5177\u793a\u4f8b"<\/span>,<\/span><\/p>\n

\/\/ \u6267\u884c\u914d\u7f6e<\/span>
\n executeAsync =<\/span> false<\/span>,<\/span> \/\/ \u662f\u5426\u5f02\u6b65\u6267\u884c，\u9ed8\u8ba4false<\/span>
\n timeout =<\/span> 5000<\/span>,<\/span> \/\/ \u8d85\u65f6\u65f6\u95f4（\u6beb\u79d2）<\/span><\/p>\n

\/\/ \u5143\u6570\u636e<\/span>
\n tags =<\/span> {<\/span>"critical"<\/span>,<\/span> "finance"<\/span>}<\/span>,<\/span> \/\/ \u6807\u7b7e，\u7528\u4e8e\u5206\u7c7b\u548c\u8fc7\u6ee4<\/span>
\n version =<\/span> "1.0.0"<\/span>,<\/span> \/\/ \u7248\u672c\u53f7<\/span><\/p>\n

\/\/ \u8fd4\u56de\u7c7b\u578b\u63d0\u793a<\/span>
\n returnType =<\/span> ReturnType<\/span>.<\/span>STRING \/\/ \u8fd4\u56de\u7c7b\u578b\u63d0\u793a<\/span><\/p>\n

\/\/ \u6743\u9650\u63a7\u5236<\/span>
\n requiredPermissions =<\/span> {<\/span>"READ"<\/span>,<\/span> "WRITE"<\/span>}<\/span>
\n)<\/span>
\npublic<\/span> String<\/span> advancedOperation<\/span>(<\/span>@P<\/span>(<\/span>"\u8f93\u5165\u6570\u636e"<\/span>)<\/span> String<\/span> input)<\/span> {<\/span>
\n return<\/span> "\u5904\u7406\u7ed3\u679c: "<\/span> +<\/span> input;<\/span>
\n}<\/span><\/p>\n

🔧 Tool \u7684\u6ce8\u518c\u4e0e\u914d\u7f6e<\/h3>\n

1. Spring Boot \u81ea\u52a8\u88c5\u914d<\/h4>\n

@Configuration<\/span>
\npublic<\/span> class<\/span> ToolConfig<\/span> {<\/span><\/p>\n

@Bean<\/span>
\n public<\/span> ToolExecutor<\/span> toolExecutor<\/span>(<\/span>
\n List<\/span><<\/span>Tool<\/span>><\/span><\/span> tools,<\/span> \/\/ \u81ea\u52a8\u6536\u96c6\u6240\u6709 @Tool \u6ce8\u89e3\u7684 Bean<\/span>
\n @Value<\/span>(<\/span>"${ai.tool.timeout:30000}"<\/span>)<\/span> long<\/span> timeout
\n )<\/span> {<\/span>
\n ToolExecutor<\/span> executor =<\/span> ToolExecutor<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>tools<\/span>(<\/span>tools)<\/span>
\n .<\/span>timeout<\/span>(<\/span>timeout)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u6dfb\u52a0\u81ea\u5b9a\u4e49\u5de5\u5177\u5904\u7406\u5668<\/span>
\n executor.<\/span>addToolExecutionListener<\/span>(<\/span>new<\/span> ToolExecutionListener<\/span>(<\/span>)<\/span> {<\/span>
\n @Override<\/span>
\n public<\/span> void<\/span> onToolExecuted<\/span>(<\/span>ToolExecutionEvent<\/span> event)<\/span> {<\/span>
\n log.<\/span>info<\/span>(<\/span>"\u5de5\u5177 {} \u6267\u884c\u5b8c\u6210，\u8017\u65f6 {}ms"<\/span>,<\/span>
\n event.<\/span>getToolName<\/span>(<\/span>)<\/span>,<\/span>
\n event.<\/span>getExecutionTime<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span>)<\/span>;<\/span><\/p>\n

return<\/span> executor;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

2. \u624b\u52a8\u6ce8\u518c\u5de5\u5177<\/h4>\n

public<\/span> class<\/span> ManualToolRegistration<\/span> {<\/span><\/p>\n

public<\/span> AiServices<\/span><<\/span>Assistant<\/span>><\/span><\/span> createAssistant<\/span>(<\/span>)<\/span> {<\/span>
\n CalculatorTool<\/span> calculator =<\/span> new<\/span> CalculatorTool<\/span>(<\/span>)<\/span>;<\/span>
\n WeatherTool<\/span> weather =<\/span> new<\/span> WeatherTool<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

return<\/span> AiServices<\/span>.<\/span>builder<\/span>(<\/span>Assistant<\/span>.<\/span>class<\/span>)<\/span>
\n .<\/span>chatLanguageModel<\/span>(<\/span>createChatModel<\/span>(<\/span>)<\/span>)<\/span>
\n .<\/span>tools<\/span>(<\/span>calculator,<\/span> weather)<\/span> \/\/ \u6ce8\u518c\u591a\u4e2a\u5de5\u5177<\/span>
\n .<\/span>toolExecutor<\/span>(<\/span>createToolExecutor<\/span>(<\/span>)<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

private<\/span> ToolExecutor<\/span> createToolExecutor<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> ToolExecutor<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>toolSpecificationParser<\/span>(<\/span>new<\/span> JsonToolSpecificationParser<\/span>(<\/span>)<\/span>)<\/span>
\n .<\/span>argumentExtractor<\/span>(<\/span>new<\/span> ReflectionArgumentExtractor<\/span>(<\/span>)<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

🎯 \u5b9e\u9645\u5e94\u7528\u793a\u4f8b<\/h3>\n

\u793a\u4f8b1：\u7535\u5546\u5ba2\u670d Agent<\/h4>\n

@Service<\/span>
\npublic<\/span> class<\/span> CustomerServiceTools<\/span> {<\/span><\/p>\n

private<\/span> final<\/span> OrderRepository<\/span> orderRepository;<\/span>
\n private<\/span> final<\/span> ProductService<\/span> productService;<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "\u67e5\u627e\u8ba2\u5355"<\/span>,<\/span>
\n description =<\/span> "\u6839\u636e\u8ba2\u5355\u53f7\u6216\u5ba2\u6237\u4fe1\u606f\u67e5\u627e\u8ba2\u5355\u8be6\u60c5"<\/span>,<\/span>
\n tags =<\/span> {<\/span>"order"<\/span>,<\/span> "customer-service"<\/span>}<\/span>)<\/span>
\n public<\/span> OrderInfo<\/span> findOrder<\/span>(<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u8ba2\u5355\u53f7"<\/span>,<\/span> required =<\/span> false<\/span>)<\/span> String<\/span> orderId,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u5ba2\u6237\u624b\u673a\u53f7"<\/span>,<\/span> required =<\/span> false<\/span>)<\/span> String<\/span> phone,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u5ba2\u6237\u90ae\u7bb1"<\/span>,<\/span> required =<\/span> false<\/span>)<\/span> String<\/span> email
\n )<\/span> {<\/span>
\n \/\/ \u9a8c\u8bc1\u53c2\u6570<\/span>
\n if<\/span> (<\/span>orderId ==<\/span> null<\/span> &&<\/span> phone ==<\/span> null<\/span> &&<\/span> email ==<\/span> null<\/span>)<\/span> {<\/span>
\n throw<\/span> new<\/span> IllegalArgumentException<\/span>(<\/span>"\u81f3\u5c11\u63d0\u4f9b\u4e00\u4e2a\u67e5\u8be2\u6761\u4ef6"<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

\/\/ \u67e5\u8be2\u903b\u8f91<\/span>
\n Order<\/span> order =<\/span> orderRepository.<\/span>findByCriteria<\/span>(<\/span>orderId,<\/span> phone,<\/span> email)<\/span>;<\/span>
\n return<\/span> convertToOrderInfo<\/span>(<\/span>order)<\/span>;<\/span>
\n }<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "\u68c0\u67e5\u5e93\u5b58"<\/span>,<\/span>
\n description =<\/span> "\u68c0\u67e5\u5546\u54c1\u5e93\u5b58\u72b6\u6001，\u8fd4\u56de\u5e93\u5b58\u6570\u91cf"<\/span>,<\/span>
\n timeout =<\/span> 3000<\/span>)<\/span>
\n public<\/span> StockInfo<\/span> checkStock<\/span>(<\/span>
\n @P<\/span>(<\/span>"\u5546\u54c1SKU"<\/span>)<\/span> String<\/span> sku,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u4ed3\u5e93\u4ee3\u7801"<\/span>,<\/span> defaultValue =<\/span> "WH001"<\/span>)<\/span> String<\/span> warehouseCode
\n )<\/span> {<\/span>
\n int<\/span> quantity =<\/span> productService.<\/span>getStockQuantity<\/span>(<\/span>sku,<\/span> warehouseCode)<\/span>;<\/span>
\n boolean<\/span> inStock =<\/span> quantity ><\/span> 0<\/span>;<\/span><\/p>\n

return<\/span> new<\/span> StockInfo<\/span>(<\/span>sku,<\/span> warehouseCode,<\/span> quantity,<\/span> inStock)<\/span>;<\/span>
\n }<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "\u5904\u7406\u9000\u8d27"<\/span>,<\/span>
\n description =<\/span> "\u5904\u7406\u5ba2\u6237\u9000\u8d27\u7533\u8bf7，\u751f\u6210\u9000\u8d27\u5355"<\/span>)<\/span>
\n public<\/span> ReturnResult<\/span> processReturn<\/span>(<\/span>
\n @P<\/span>(<\/span>"\u8ba2\u5355\u53f7"<\/span>)<\/span> String<\/span> orderId,<\/span>
\n @P<\/span>(<\/span>"\u9000\u8d27\u539f\u56e0"<\/span>)<\/span> ReturnReason<\/span> reason,<\/span>
\n @P<\/span>(<\/span>"\u5546\u54c1\u5217\u8868"<\/span>)<\/span> List<\/span><<\/span>ReturnItem<\/span>><\/span><\/span> items,<\/span>
\n @Tool.Memory<\/span>(<\/span>"customerId"<\/span>)<\/span> String<\/span> customerId \/\/ \u4ece\u5bf9\u8bdd\u8bb0\u5fc6\u83b7\u53d6<\/span>
\n )<\/span> {<\/span>
\n \/\/ \u9a8c\u8bc1\u9000\u8d27\u8d44\u683c<\/span>
\n validateReturnEligibility<\/span>(<\/span>orderId,<\/span> customerId)<\/span>;<\/span><\/p>\n

\/\/ \u521b\u5efa\u9000\u8d27\u5355<\/span>
\n String<\/span> returnId =<\/span> returnService.<\/span>createReturn<\/span>(<\/span>orderId,<\/span> reason,<\/span> items)<\/span>;<\/span><\/p>\n

return<\/span> new<\/span> ReturnResult<\/span>(<\/span>returnId,<\/span> "\u9000\u8d27\u7533\u8bf7\u5df2\u53d7\u7406"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u793a\u4f8b2：\u6570\u636e\u5206\u6790\u5de5\u5177<\/h4>\n

@Component<\/span>
\npublic<\/span> class<\/span> DataAnalysisTools<\/span> {<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "\u6570\u636e\u7edf\u8ba1"<\/span>,<\/span>
\n description =<\/span> "\u5bf9\u6570\u636e\u96c6\u8fdb\u884c\u7edf\u8ba1\u5206\u6790，\u8fd4\u56de\u7edf\u8ba1\u6307\u6807"<\/span>)<\/span>
\n public<\/span> StatisticsResult<\/span> analyzeData<\/span>(<\/span>
\n @P<\/span>(<\/span>"\u6570\u636e\u96c6"<\/span>)<\/span> List<\/span><<\/span>Double<\/span>><\/span><\/span> dataset,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u7edf\u8ba1\u65b9\u6cd5"<\/span>,<\/span> defaultValue =<\/span> "basic"<\/span>)<\/span> AnalysisMethod<\/span> method
\n )<\/span> {<\/span>
\n StatisticsResult<\/span> result =<\/span> new<\/span> StatisticsResult<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

result.<\/span>setCount<\/span>(<\/span>dataset.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n result.<\/span>setMean<\/span>(<\/span>calculateMean<\/span>(<\/span>dataset)<\/span>)<\/span>;<\/span>
\n result.<\/span>setStdDev<\/span>(<\/span>calculateStdDev<\/span>(<\/span>dataset)<\/span>)<\/span>;<\/span><\/p>\n

if<\/span> (<\/span>method ==<\/span> AnalysisMethod<\/span>.<\/span>ADVANCED)<\/span> {<\/span>
\n result.<\/span>setMedian<\/span>(<\/span>calculateMedian<\/span>(<\/span>dataset)<\/span>)<\/span>;<\/span>
\n result.<\/span>setPercentiles<\/span>(<\/span>calculatePercentiles<\/span>(<\/span>dataset)<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

return<\/span> result;<\/span>
\n }<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "\u6570\u636e\u53ef\u89c6\u5316"<\/span>,<\/span>
\n description =<\/span> "\u751f\u6210\u6570\u636e\u53ef\u89c6\u5316\u56fe\u8868"<\/span>,<\/span>
\n executeAsync =<\/span> true<\/span>)<\/span> \/\/ \u5f02\u6b65\u6267\u884c，\u907f\u514d\u963b\u585e<\/span>
\n public<\/span> VisualizationResult<\/span> visualize<\/span>(<\/span>
\n @P<\/span>(<\/span>"\u6570\u636e\u96c6"<\/span>)<\/span> Map<\/span><<\/span>String<\/span>,<\/span> Object<\/span>><\/span><\/span> data,<\/span>
\n @P<\/span>(<\/span>"\u56fe\u8868\u7c7b\u578b"<\/span>)<\/span> ChartType<\/span> chartType,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u6837\u5f0f\u914d\u7f6e"<\/span>,<\/span> required =<\/span> false<\/span>)<\/span> StyleConfig<\/span> style
\n )<\/span> {<\/span>
\n \/\/ \u5f02\u6b65\u751f\u6210\u56fe\u8868<\/span>
\n CompletableFuture<\/span><<\/span>String<\/span>><\/span><\/span> chartFuture =<\/span> chartService.<\/span>generateAsync<\/span>(<\/span>
\n data,<\/span> chartType,<\/span> style
\n )<\/span>;<\/span><\/p>\n

\/\/ \u8fd4\u56de\u4efb\u52a1ID，\u652f\u6301\u67e5\u8be2\u8fdb\u5ea6<\/span>
\n String<\/span> taskId =<\/span> taskManager.<\/span>createTask<\/span>(<\/span>chartFuture)<\/span>;<\/span><\/p>\n

return<\/span> new<\/span> VisualizationResult<\/span>(<\/span>taskId,<\/span> "\u56fe\u8868\u751f\u6210\u4efb\u52a1\u5df2\u63d0\u4ea4"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u793a\u4f8b3：\u591a\u6b65\u9aa4\u590d\u6742\u5de5\u5177<\/h4>\n

@Tool<\/span>(<\/span>name =<\/span> "\u65c5\u884c\u89c4\u5212"<\/span>,<\/span>
\n description =<\/span> "\u89c4\u5212\u5b8c\u6574\u7684\u65c5\u884c\u884c\u7a0b，\u5305\u62ec\u4ea4\u901a\u3001\u4f4f\u5bbf\u3001\u666f\u70b9"<\/span>)<\/span>
\npublic<\/span> TravelPlan<\/span> planTravel<\/span>(<\/span>
\n @P<\/span>(<\/span>"\u76ee\u7684\u5730"<\/span>)<\/span> String<\/span> destination,<\/span>
\n @P<\/span>(<\/span>"\u51fa\u53d1\u65e5\u671f"<\/span>)<\/span> LocalDate<\/span> startDate,<\/span>
\n @P<\/span>(<\/span>"\u7ed3\u675f\u65e5\u671f"<\/span>)<\/span> LocalDate<\/span> endDate,<\/span>
\n @P<\/span>(<\/span>"\u65c5\u884c\u4eba\u6570"<\/span>)<\/span> int<\/span> travelers,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u9884\u7b97"<\/span>,<\/span> defaultValue =<\/span> "10000"<\/span>)<\/span> double<\/span> budget,<\/span>
\n @P<\/span>(<\/span>value =<\/span> "\u504f\u597d"<\/span>,<\/span> required =<\/span> false<\/span>)<\/span> TravelPreference<\/span> preference
\n)<\/span> {<\/span>
\n \/\/ \u7b2c\u4e00\u6b65：\u83b7\u53d6\u76ee\u7684\u5730\u4fe1\u606f<\/span>
\n DestinationInfo<\/span> destInfo =<\/span> destinationService.<\/span>getInfo<\/span>(<\/span>destination)<\/span>;<\/span><\/p>\n

\/\/ \u7b2c\u4e8c\u6b65：\u67e5\u627e\u822a\u73ed<\/span>
\n List<\/span><<\/span>FlightOption<\/span>><\/span><\/span> flights =<\/span> flightService.<\/span>searchFlights<\/span>(<\/span>
\n "current_city"<\/span>,<\/span> destination,<\/span> startDate,<\/span> travelers
\n )<\/span>;<\/span><\/p>\n

\/\/ \u7b2c\u4e09\u6b65：\u67e5\u627e\u9152\u5e97<\/span>
\n List<\/span><<\/span>HotelOption<\/span>><\/span><\/span> hotels =<\/span> hotelService.<\/span>searchHotels<\/span>(<\/span>
\n destination,<\/span> startDate,<\/span> endDate,<\/span> travelers,<\/span> budget\/<\/span>3<\/span>
\n )<\/span>;<\/span><\/p>\n

\/\/ \u7b2c\u56db\u6b65：\u751f\u6210\u666f\u70b9\u63a8\u8350<\/span>
\n List<\/span><<\/span>Attraction<\/span>><\/span><\/span> attractions =<\/span> attractionService.<\/span>recommend<\/span>(<\/span>
\n destination,<\/span> preference
\n )<\/span>;<\/span><\/p>\n

\/\/ \u7b2c\u4e94\u6b65：\u751f\u6210\u6bcf\u65e5\u884c\u7a0b<\/span>
\n List<\/span><<\/span>DailySchedule<\/span>><\/span><\/span> schedule =<\/span> itineraryPlanner.<\/span>createSchedule<\/span>(<\/span>
\n attractions,<\/span> startDate,<\/span> endDate
\n )<\/span>;<\/span><\/p>\n

\/\/ \u7b2c\u516d\u6b65：\u8ba1\u7b97\u603b\u8d39\u7528<\/span>
\n double<\/span> totalCost =<\/span> calculateTotalCost<\/span>(<\/span>flights,<\/span> hotels,<\/span> attractions)<\/span>;<\/span><\/p>\n

return<\/span> TravelPlan<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>destination<\/span>(<\/span>destination)<\/span>
\n .<\/span>duration<\/span>(<\/span>Duration<\/span>.<\/span>between<\/span>(<\/span>startDate,<\/span> endDate)<\/span>)<\/span>
\n .<\/span>flights<\/span>(<\/span>flights)<\/span>
\n .<\/span>hotels<\/span>(<\/span>hotels)<\/span>
\n .<\/span>attractions<\/span>(<\/span>attractions)<\/span>
\n .<\/span>dailySchedules<\/span>(<\/span>schedule)<\/span>
\n .<\/span>totalCost<\/span>(<\/span>totalCost)<\/span>
\n .<\/span>budgetStatus<\/span>(<\/span>totalCost <=<\/span> budget ?<\/span> "\u5728\u9884\u7b97\u5185"<\/span> :<\/span> "\u8d85\u51fa\u9884\u7b97"<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\u2699\ufe0f \u914d\u7f6e\u4e0e\u4f18\u5316<\/h3>\n

1. \u5168\u5c40\u914d\u7f6e<\/h4>\n

# application.yml<\/span>
\nlangchain4j<\/span>:<\/span>
\n tools<\/span>:<\/span>
\n enabled<\/span>:<\/span> true<\/span>
\n auto-registration<\/span>:<\/span> true<\/span>
\n execution<\/span>:<\/span>
\n timeout<\/span>:<\/span> 10000<\/span> # 10\u79d2\u8d85\u65f6<\/span>
\n max-retries<\/span>:<\/span> 3<\/span>
\n retry-delay<\/span>:<\/span> 1000<\/span>
\n security<\/span>:<\/span>
\n enable-whitelist<\/span>:<\/span> true<\/span>
\n allowed-tools<\/span>:<\/span>
\n –<\/span> calculator
\n –<\/span> weather
\n –<\/span> stock<\/p>\n

2. \u6027\u80fd\u4f18\u5316\u914d\u7f6e<\/h4>\n

@Configuration<\/span>
\npublic<\/span> class<\/span> ToolPerformanceConfig<\/span> {<\/span><\/p>\n

@Bean<\/span>
\n @Primary<\/span>
\n public<\/span> ToolExecutor<\/span> toolExecutor<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> ToolExecutor<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>cacheManager<\/span>(<\/span>createCacheManager<\/span>(<\/span>)<\/span>)<\/span> \/\/ \u6dfb\u52a0\u7f13\u5b58<\/span>
\n .<\/span>rateLimiter<\/span>(<\/span>createRateLimiter<\/span>(<\/span>)<\/span>)<\/span> \/\/ \u6dfb\u52a0\u9650\u6d41<\/span>
\n .<\/span>circuitBreaker<\/span>(<\/span>createCircuitBreaker<\/span>(<\/span>)<\/span>)<\/span> \/\/ \u6dfb\u52a0\u7194\u65ad<\/span>
\n .<\/span>monitor<\/span>(<\/span>createMonitor<\/span>(<\/span>)<\/span>)<\/span> \/\/ \u6dfb\u52a0\u76d1\u63a7<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

private<\/span> CacheManager<\/span> createCacheManager<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> CacheManager<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>maximumSize<\/span>(<\/span>1000<\/span>)<\/span>
\n .<\/span>expireAfterWrite<\/span>(<\/span>10<\/span>,<\/span> TimeUnit<\/span>.<\/span>MINUTES)<\/span>
\n .<\/span>recordStats<\/span>(<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

private<\/span> RateLimiter<\/span> createRateLimiter<\/span>(<\/span>)<\/span> {<\/span>
\n return<\/span> RateLimiter<\/span>.<\/span>create<\/span>(<\/span>100<\/span>)<\/span>;<\/span> \/\/ \u6bcf\u79d2100\u4e2a\u8bf7\u6c42<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

3. \u9519\u8bef\u5904\u7406<\/h4>\n

@Slf4j<\/span>
\n@Component<\/span>
\npublic<\/span> class<\/span> GlobalToolErrorHandler<\/span> implements<\/span> ToolExecutionErrorHandler<\/span> {<\/span><\/p>\n

@Override<\/span>
\n public<\/span> Optional<\/span><<\/span>String<\/span>><\/span><\/span> handleError<\/span>(<\/span>ToolExecutionRequest<\/span> request,<\/span> Throwable<\/span> error)<\/span> {<\/span>
\n log.<\/span>error<\/span>(<\/span>"\u5de5\u5177\u6267\u884c\u5931\u8d25: {}"<\/span>,<\/span> request.<\/span>name<\/span>(<\/span>)<\/span>,<\/span> error)<\/span>;<\/span><\/p>\n

\/\/ \u6839\u636e\u9519\u8bef\u7c7b\u578b\u8fd4\u56de\u4e0d\u540c\u7684\u63d0\u793a<\/span>
\n if<\/span> (<\/span>error instanceof<\/span> IllegalArgumentException<\/span>)<\/span> {<\/span>
\n return<\/span> Optional<\/span>.<\/span>of<\/span>(<\/span>"\u53c2\u6570\u9519\u8bef: "<\/span> +<\/span> error.<\/span>getMessage<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>error instanceof<\/span> TimeoutException<\/span>)<\/span> {<\/span>
\n return<\/span> Optional<\/span>.<\/span>of<\/span>(<\/span>"\u5de5\u5177\u6267\u884c\u8d85\u65f6，\u8bf7\u7a0d\u540e\u91cd\u8bd5"<\/span>)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>error instanceof<\/span> RateLimitExceededException<\/span>)<\/span> {<\/span>
\n return<\/span> Optional<\/span>.<\/span>of<\/span>(<\/span>"\u8bf7\u6c42\u8fc7\u4e8e\u9891\u7e41，\u8bf7\u7a0d\u540e\u518d\u8bd5"<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

\/\/ \u751f\u4ea7\u73af\u5883\u9690\u85cf\u5177\u4f53\u9519\u8bef<\/span>
\n return<\/span> Optional<\/span>.<\/span>of<\/span>(<\/span>"\u7cfb\u7edf\u7e41\u5fd9，\u8bf7\u7a0d\u540e\u91cd\u8bd5"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

🔍 \u6700\u4f73\u5b9e\u8df5<\/h3>\n

1. \u5de5\u5177\u8bbe\u8ba1\u539f\u5219<\/h4>\n

public<\/span> class<\/span> ToolDesignPrinciples<\/span> {<\/span><\/p>\n

\/\/ \u539f\u52191：\u5355\u4e00\u804c\u8d23<\/span>
\n @Tool<\/span>(<\/span>name =<\/span> "\u5355\u4e00\u529f\u80fd\u5de5\u5177"<\/span>,<\/span> description =<\/span> "\u6bcf\u4e2a\u5de5\u5177\u53ea\u505a\u4e00\u4ef6\u4e8b"<\/span>)<\/span>
\n public<\/span> String<\/span> doOneThingWell<\/span>(<\/span>@P<\/span>(<\/span>"\u8f93\u5165"<\/span>)<\/span> String<\/span> input)<\/span> {<\/span>
\n \/\/ …<\/span>
\n }<\/span><\/p>\n

\/\/ \u539f\u52192：\u53c2\u6570\u9a8c\u8bc1<\/span>
\n @Tool<\/span>(<\/span>name =<\/span> "\u5e26\u9a8c\u8bc1\u7684\u5de5\u5177"<\/span>)<\/span>
\n public<\/span> Result<\/span> validatedTool<\/span>(<\/span>@P<\/span>(<\/span>"\u7528\u6237ID"<\/span>)<\/span> String<\/span> userId)<\/span> {<\/span>
\n if<\/span> (<\/span>StringUtils<\/span>.<\/span>isBlank<\/span>(<\/span>userId)<\/span>)<\/span> {<\/span>
\n throw<\/span> new<\/span> ValidationException<\/span>(<\/span>"\u7528\u6237ID\u4e0d\u80fd\u4e3a\u7a7a"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n \/\/ …<\/span>
\n }<\/span><\/p>\n

\/\/ \u539f\u52193：\u6587\u6863\u5b8c\u6574<\/span>
\n @Tool<\/span>(<\/span>
\n name =<\/span> "well_documented"<\/span>,<\/span>
\n description =<\/span> """
\n \u8fd9\u662f\u4e00\u4e2a\u6587\u6863\u5b8c\u6574\u7684\u5de5\u5177\u3002
\n \u529f\u80fd：\u8ba1\u7b97\u4e24\u4e2a\u6570\u7684\u548c\u3002
\n \u6ce8\u610f：\u4ec5\u652f\u6301\u6574\u6570\u8fd0\u7b97\u3002
\n \u793a\u4f8b：\u8f93\u5165(5, 3)\u8fd4\u56de8\u3002
\n """<\/span>,<\/span>
\n tags =<\/span> {<\/span>"math"<\/span>,<\/span> "basic"<\/span>}<\/span>
\n )<\/span>
\n public<\/span> int<\/span> add<\/span>(<\/span>@P<\/span>(<\/span>"\u7b2c\u4e00\u4e2a\u52a0\u6570"<\/span>)<\/span> int<\/span> a,<\/span> @P<\/span>(<\/span>"\u7b2c\u4e8c\u4e2a\u52a0\u6570"<\/span>)<\/span> int<\/span> b)<\/span> {<\/span>
\n return<\/span> a +<\/span> b;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

2. \u5b89\u5168\u6027\u8003\u8651<\/h4>\n

@Component<\/span>
\npublic<\/span> class<\/span> SecureTools<\/span> {<\/span><\/p>\n

@PreAuthorize<\/span>(<\/span>"hasRole('USER')"<\/span>)<\/span> \/\/ Spring Security \u96c6\u6210<\/span>
\n @Tool<\/span>(<\/span>name =<\/span> "\u654f\u611f\u64cd\u4f5c"<\/span>,<\/span> description =<\/span> "\u9700\u8981\u6743\u9650\u9a8c\u8bc1\u7684\u64cd\u4f5c"<\/span>)<\/span>
\n public<\/span> String<\/span> sensitiveOperation<\/span>(<\/span>@P<\/span>(<\/span>"\u6570\u636e"<\/span>)<\/span> String<\/span> data)<\/span> {<\/span>
\n \/\/ \u9700\u8981\u7528\u6237\u8ba4\u8bc1<\/span>
\n return<\/span> "\u64cd\u4f5c\u6210\u529f"<\/span>;<\/span>
\n }<\/span><\/p>\n

@Tool<\/span>(<\/span>name =<\/span> "\u8f93\u5165\u51c0\u5316\u5de5\u5177"<\/span>)<\/span>
\n public<\/span> String<\/span> sanitizedOperation<\/span>(<\/span>
\n @P<\/span>(<\/span>"\u7528\u6237\u8f93\u5165"<\/span>)<\/span>
\n @Sanitize<\/span>(<\/span>type =<\/span> SanitizeType<\/span>.<\/span>HTML)<\/span> \/\/ \u9632\u6b62XSS<\/span>
\n String<\/span> userInput
\n )<\/span> {<\/span>
\n \/\/ \u8f93\u5165\u5df2\u81ea\u52a8\u51c0\u5316<\/span>
\n return<\/span> process<\/span>(<\/span>userInput)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

📊 \u8c03\u8bd5\u4e0e\u76d1\u63a7<\/h3>\n

1. \u5de5\u5177\u8c03\u7528\u65e5\u5fd7<\/h4>\n

@Aspect<\/span>
\n@Component<\/span>
\n@Slf4j<\/span>
\npublic<\/span> class<\/span> ToolLoggingAspect<\/span> {<\/span><\/p>\n

@Around<\/span>(<\/span>"@annotation(dev.langchain4j.agent.tool.Tool)"<\/span>)<\/span>
\n public<\/span> Object<\/span> logToolExecution<\/span>(<\/span>ProceedingJoinPoint<\/span> joinPoint)<\/span> throws<\/span> Throwable<\/span> {<\/span>
\n Method<\/span> method =<\/span> (<\/span>(<\/span>MethodSignature<\/span>)<\/span> joinPoint.<\/span>getSignature<\/span>(<\/span>)<\/span>)<\/span>.<\/span>getMethod<\/span>(<\/span>)<\/span>;<\/span>
\n Tool<\/span> toolAnnotation =<\/span> method.<\/span>getAnnotation<\/span>(<\/span>Tool<\/span>.<\/span>class<\/span>)<\/span>;<\/span><\/p>\n

long<\/span> startTime =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

try<\/span> {<\/span>
\n Object<\/span> result =<\/span> joinPoint.<\/span>proceed<\/span>(<\/span>)<\/span>;<\/span>
\n long<\/span> duration =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>(<\/span>)<\/span> –<\/span> startTime;<\/span><\/p>\n

log.<\/span>info<\/span>(<\/span>"\u5de5\u5177\u6267\u884c\u6210\u529f – \u5de5\u5177: {}, \u8017\u65f6: {}ms"<\/span>,<\/span>
\n toolAnnotation.<\/span>name<\/span>(<\/span>)<\/span>,<\/span> duration)<\/span>;<\/span><\/p>\n

return<\/span> result;<\/span>
\n }<\/span> catch<\/span> (<\/span>Exception<\/span> e)<\/span> {<\/span>
\n log.<\/span>error<\/span>(<\/span>"\u5de5\u5177\u6267\u884c\u5931\u8d25 – \u5de5\u5177: {}"<\/span>,<\/span> toolAnnotation.<\/span>name<\/span>(<\/span>)<\/span>,<\/span> e)<\/span>;<\/span>
\n throw<\/span> e;<\/span>
\n }<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

2. \u76d1\u63a7\u6307\u6807<\/h4>\n

@Component<\/span>
\npublic<\/span> class<\/span> ToolMetrics<\/span> {<\/span><\/p>\n

private<\/span> final<\/span> MeterRegistry<\/span> meterRegistry;<\/span><\/p>\n

@EventListener<\/span>
\n public<\/span> void<\/span> handleToolExecution<\/span>(<\/span>ToolExecutionEvent<\/span> event)<\/span> {<\/span>
\n \/\/ \u8bb0\u5f55\u6267\u884c\u65f6\u95f4<\/span>
\n meterRegistry.<\/span>timer<\/span>(<\/span>"tool.execution.time"<\/span>,<\/span>
\n "tool"<\/span>,<\/span> event.<\/span>getToolName<\/span>(<\/span>)<\/span>,<\/span>
\n "status"<\/span>,<\/span> event.<\/span>isSuccess<\/span>(<\/span>)<\/span> ?<\/span> "success"<\/span> :<\/span> "error"<\/span>
\n )<\/span>.<\/span>record<\/span>(<\/span>event.<\/span>getExecutionTime<\/span>(<\/span>)<\/span>,<\/span> TimeUnit<\/span>.<\/span>MILLISECONDS)<\/span>;<\/span><\/p>\n

\/\/ \u8bb0\u5f55\u8c03\u7528\u6b21\u6570<\/span>
\n meterRegistry.<\/span>counter<\/span>(<\/span>"tool.execution.count"<\/span>,<\/span>
\n "tool"<\/span>,<\/span> event.<\/span>getToolName<\/span>(<\/span>)<\/span>
\n )<\/span>.<\/span>increment<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

🎯 \u603b\u7ed3<\/h3>\n

@Tool \u6ce8\u89e3\u6838\u5fc3\u53c2\u6570\u56de\u987e<\/h4>\n
  • name\/value – \u5de5\u5177\u6807\u8bc6\u7b26<\/li>\n
  • description – \u529f\u80fd\u63cf\u8ff0（\u6700\u91cd\u8981\u7684\u53c2\u6570）<\/li>\n
  • tags – \u5206\u7c7b\u6807\u7b7e<\/li>\n
  • executeAsync – \u5f02\u6b65\u6267\u884c\u5f00\u5173<\/li>\n
  • timeout – \u8d85\u65f6\u8bbe\u7f6e<\/li>\n
  • returnType – \u8fd4\u56de\u7c7b\u578b\u63d0\u793a<\/li>\n

    \u5de5\u5177\u8bbe\u8ba1\u8981\u70b9<\/h4>\n
  • \u6e05\u6670\u7684\u63cf\u8ff0：AI \u4f9d\u8d56\u63cf\u8ff0\u7406\u89e3\u5de5\u5177\u529f\u80fd<\/li>\n
  • \u5408\u7406\u7684\u53c2\u6570\u8bbe\u8ba1：\u4f7f\u7528 @P \u6ce8\u89e3\u63d0\u4f9b\u53c2\u6570\u8bf4\u660e<\/li>\n
  • \u9519\u8bef\u5904\u7406：\u4f18\u96c5\u5904\u7406\u5f02\u5e38\u5e76\u63d0\u4f9b\u6709\u7528\u53cd\u9988<\/li>\n
  • \u6027\u80fd\u8003\u8651：\u8bbe\u7f6e\u9002\u5f53\u7684\u8d85\u65f6\u548c\u5f02\u6b65\u6267\u884c<\/li>\n
  • \u5b89\u5168\u6027：\u9a8c\u8bc1\u8f93\u5165，\u63a7\u5236\u8bbf\u95ee\u6743\u9650<\/li>\n

    \u901a\u8fc7\u5408\u7406\u4f7f\u7528 Tool \u548c @Tool \u6ce8\u89e3，\u4f60\u53ef\u4ee5\u8ba9 AI \u6a21\u578b\u5177\u5907\u8c03\u7528\u5916\u90e8\u670d\u52a1\u3001\u6267\u884c\u4e1a\u52a1\u903b\u8f91\u7684\u80fd\u529b，\u4ece\u800c\u6784\u5efa\u51fa\u529f\u80fd\u5f3a\u5927\u7684 AI Agent \u5e94\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    LangChain4j \u4e2d Tool \u7684\u5b9a\u4e49\u65b9\u5f0f\u4e0e Tool \u6ce8\u89e3\u8be6\u89e3
    \n\u5728 LangChain4j \u4e2d，Tool（\u5de5\u5177）\u5141\u8bb8\u5927\u8bed\u8a00\u6a21\u578b\u901a\u8fc7\u51fd\u6570\u8c03\u7528\u65b9\u5f0f\u4e0e\u5916\u90e8\u7cfb\u7edf\u3001API \u6216\u4e1a\u52a1\u903b\u8f91\u8fdb\u884c\u4ea4\u4e92，\u8fd9\u662f\u5b9e\u73b0 AI Agent \u529f\u80fd\u7684\u5173\u952e\u7ec4\u4ef6\u3002
    \n🛠\ufe0f Tool \u7684\u5b9a\u4e49\u65b9\u5f0f
    \n\u65b9\u5f0f1：\u4f7f\u7528 Tool \u6ce8\u89e3（\u6700\u5e38\u7528）
    \nimport dev.langchain4j.agen<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[7900,7899,7903,7901,7904,7902,99],"topic":[],"class_list":{"0":"post-74621","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-server","7":"tag-tool-","10":"tag-toolbuilder","11":"tag-7904","12":"tag-7902","13":"tag-java"},"yoast_head":"\n\u9ad8\u7ea7java\u6bcf\u65e5\u4e00\u9053\u9762\u8bd5\u9898-2025\u5e746\u670825\u65e5-\u57fa\u7840\u7bc7[LangChain4j]-\u8bf7\u63cf\u8ff0 LangChain4j \u4e2d Tool (\u5de5\u5177) \u7684\u5b9a\u4e49\u65b9\u5f0f\uff0c@Tool \u6ce8\u89e3\u6709\u54ea\u4e9b\u6838\u5fc3\u53c2\u6570\uff1f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/74621.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u9ad8\u7ea7java\u6bcf\u65e5\u4e00\u9053\u9762\u8bd5\u9898-2025\u5e746\u670825\u65e5-\u57fa\u7840\u7bc7[LangChain4j]-\u8bf7\u63cf\u8ff0 LangChain4j \u4e2d Tool (\u5de5\u5177) \u7684\u5b9a\u4e49\u65b9\u5f0f\uff0c@Tool \u6ce8\u89e3\u6709\u54ea\u4e9b\u6838\u5fc3\u53c2\u6570\uff1f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"LangChain4j \u4e2d Tool \u7684\u5b9a\u4e49\u65b9\u5f0f\u4e0e Tool \u6ce8\u89e3\u8be6\u89e3 \u5728 LangChain4j \u4e2d，Tool（\u5de5\u5177）\u5141\u8bb8\u5927\u8bed\u8a00\u6a21\u578b\u901a\u8fc7\u51fd\u6570\u8c03\u7528\u65b9\u5f0f\u4e0e\u5916\u90e8\u7cfb\u7edf\u3001API \u6216\u4e1a\u52a1\u903b\u8f91\u8fdb\u884c\u4ea4\u4e92，\u8fd9\u662f\u5b9e\u73b0 AI Agent \u529f\u80fd\u7684\u5173\u952e\u7ec4\u4ef6\u3002 🛠\ufe0f Tool \u7684\u5b9a\u4e49\u65b9\u5f0f \u65b9\u5f0f1：\u4f7f\u7528 Tool \u6ce8\u89e3（\u6700\u5e38\u7528） import dev.langchain4j.agen\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/74621.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-10T01:25:22+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/74621.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/74621.html\",\"name\":\"\u9ad8\u7ea7java\u6bcf\u65e5\u4e00\u9053\u9762\u8bd5\u9898-2025\u5e746\u670825\u65e5-\u57fa\u7840\u7bc7[LangChain4j]-\u8bf7\u63cf\u8ff0 LangChain4j \u4e2d Tool (\u5de5\u5177) \u7684\u5b9a\u4e49\u65b9\u5f0f\uff0c@Tool \u6ce8\u89e3\u6709\u54ea\u4e9b\u6838\u5fc3\u53c2\u6570\uff1f - 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