{"id":652029,"date":"2025-10-22T07:57:10","date_gmt":"2025-10-22T06:57:10","guid":{"rendered":"https:\/\/blog.jetbrains.com\/?post_type=ai&#038;p=652029"},"modified":"2025-10-22T08:07:07","modified_gmt":"2025-10-22T07:07:07","slug":"koog-a2a-building-connected-ai-agents-in-kotlin","status":"publish","type":"ai","link":"https:\/\/blog.jetbrains.com\/zh-hans\/ai\/2025\/10\/koog-a2a-building-connected-ai-agents-in-kotlin\/","title":{"rendered":"Koog \u00d7 A2A\uff1a\u4f7f\u7528 Kotlin \u6784\u5efa\u4e92\u8054\u7684 AI \u667a\u80fd\u4f53"},"content":{"rendered":"<p>\u5982\u679c\u60a8\u66fe\u5c1d\u8bd5\u8fc7\u6784\u5efa\u7531\u591a\u4e2a AI \u667a\u80fd\u4f53\u7ec4\u6210\u7684\u7cfb\u7edf\uff0c\u5f88\u53ef\u80fd\u4f1a\u9047\u5230<em>\u96be\u9898<\/em>\u3002 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\u534f\u8bae\u5b9a\u4e49\u4e86\u667a\u80fd\u4f53\u95f4\u901a\u4fe1\u7684\u57fa\u672c\u8981\u7d20\uff1a<\/p>\n<ul>\n<li>\u901a\u8fc7\u6807\u51c6\u5316\u667a\u80fd\u4f53\u5361\u7247\uff08\u63cf\u8ff0\u5176\u529f\u80fd\u7684 JSON \u6587\u6863\uff09\u5b9e\u73b0<strong>\u667a\u80fd\u4f53\u53d1\u73b0<\/strong>\u3002<\/li>\n<li>\u4f7f\u7528\u4e00\u81f4\u7684\u67b6\u6784\u8fdb\u884c\u8bf7\u6c42\u548c\u54cd\u5e94\u7684<strong>\u6d88\u606f\u683c\u5f0f<\/strong>\u3002<\/li>\n<li>\u5177\u6709\u6e05\u6670\u72b6\u6001\u7684<strong>\u4efb\u52a1\u751f\u547d\u5468\u671f<\/strong>\u7ba1\u7406\uff1a\u5df2\u63d0\u4ea4 \u2192 \u8fdb\u884c\u4e2d \u2192 \u5df2\u5b8c\u6210\/\u5931\u8d25\u3002<\/li>\n<li>\u652f\u6301 JSON-RPC\u3001gRPC \u548c REST \u7b49\u7684<strong>\u4f20\u8f93\u5c42<\/strong>\u3002<\/li>\n<li>\u4f7f\u7528\u6807\u51c6 OAuth2\u3001API \u5bc6\u94a5\u548c JWT \u4ee4\u724c\u7684<strong>\u5b89\u5168\u65b9\u6848<\/strong>\u3002<\/li>\n<li>\u4f7f\u7528\u6807\u51c6\u5316\u9519\u8bef\u4ee3\u7801\u7684<strong>\u9519\u8bef\u5904\u7406<\/strong>\u3002<\/li>\n<\/ul>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-645498\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2025\/09\/image-50.png\" alt=\"\" width=\"1008\" height=\"752\" \/><\/figure>\n<h3 class=\"wp-block-heading\">\u667a\u80fd\u4f53\u5361\u7247\uff1a\u6570\u5b57\u540d\u7247<\/h3>\n<p>A2A \u751f\u6001\u7cfb\u7edf\u4e2d\u7684\u6bcf\u4e2a\u667a\u80fd\u4f53\u90fd\u4f1a\u901a\u8fc7\u4e00\u5f20\u201c\u667a\u80fd\u4f53\u5361\u7247\u201d\u6765\u53d1\u5e03\u5176\u529f\u80fd\u3002\u8fd9\u79cd\u5361\u7247\u662f\u4e00\u4e2a\u6807\u51c6\u5316 JSON \u6587\u4ef6\uff0c\u6258\u7ba1\u5728\u667a\u80fd\u4f53\u57df\u4e0a\u7684\u7279\u5b9a URL \u4e0b\uff0c\u4f8b\u5982\uff1a<em>\/.well-known\/agent-card.json<\/em>\u3002 \u667a\u80fd\u4f53\u5361\u7247\u76f8\u5f53\u4e8e\u6570\u5b57\u540d\u7247\uff0c\u80fd\u8ba9\u5176\u4ed6\u667a\u80fd\u4f53\u53d1\u73b0\u5176\u63d0\u4f9b\u7684\u670d\u52a1\u3002<\/p>\n<p>\u667a\u80fd\u4f53\u5361\u7247\u901a\u5e38\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<ul>\n<li><strong>\u57fa\u672c\u4fe1\u606f<\/strong>\uff1a\u6bd4\u5982\u667a\u80fd\u4f53\u540d\u79f0\u3001\u63cf\u8ff0\u548c\u7248\u672c\u3002<\/li>\n<li><strong>\u6280\u80fd<\/strong>\uff1a\u667a\u80fd\u4f53\u80fd\u505a\u4ec0\u4e48\uff08\u4f8b\u5982\uff0c\u8d77\u8349\u6587\u6863\u3001\u6821\u5bf9\u6587\u672c\u3001\u5206\u6790\u6570\u636e\u548c\u751f\u6210\u56fe\u50cf\uff09\u3002<\/li>\n<li><strong>\u7aef\u70b9<\/strong>\uff1a\u5982\u4f55\u8054\u7cfb\u8be5\u667a\u80fd\u4f53\u3002\u00a0<\/li>\n<li><strong>\u5176\u4ed6\u53ef\u9009\u4fe1\u606f<\/strong>\uff1a\u5df2\u542f\u7528\u7684\u529f\u80fd\u3001\u8eab\u4efd\u9a8c\u8bc1\u7b49\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u53d1\u73b0\u673a\u5236\u7701\u53bb\u4e86\u624b\u52a8\u96c6\u6210\u5de5\u4f5c\u7684\u9700\u8981\u3002 \u5f53\u4e00\u4e2a\u667a\u80fd\u4f53\u9700\u8981\u7279\u5b9a\u6280\u80fd\u65f6\uff0c\u5b83\u53ea\u9700\u68c0\u67e5\u76f8\u5173\u7684\u667a\u80fd\u4f53\u5361\u7247\uff0c\u5c31\u80fd\u4e86\u89e3\u5982\u4f55\u4e0e\u8be5\u670d\u52a1\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n<p>\u5728 Koog \u4e2d\uff0c\u667a\u80fd\u4f53\u5361\u7247\u4f7f\u7528 Kotlin \u6570\u636e\u7c7b\u8fdb\u884c\u5b9a\u4e49\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">val agentCard = AgentCard(\n    name = \"Blog Writer\",\n    description = \"\u521b\u5efa\u9ad8\u8d28\u91cf\u535a\u6587\u548c\u6587\u7ae0\u7684 AI \u667a\u80fd\u4f53\",\n    url = \"https:\/\/api.blog-writer.com\/a2a\/v1\",\n    version = \"1.0.0\",\n    capabilities = AgentCapabilities(streaming = true),\n    defaultInputModes = listOf(\"text\/plain\"),\n    defaultOutputModes = listOf(\"text\/markdown\"),\n    skills = listOf(\n        AgentSkill(\n            id = \"write-post\",\n            name = \"Blog Post Writing\",\n            description = \"\u751f\u6210\u4efb\u4f55\u4e3b\u9898\u7684\u7cbe\u5f69\u535a\u6587\",\n            tags = listOf(\"writing\", \"content\", \"blog\"),\n            examples = listOf(\"Write a post about AI trends\")\n        )\n    )\n)<\/pre>\n<h3 class=\"wp-block-heading\">\u901a\u7528\u6d88\u606f\u4f20\u9012\uff1a\u4e00\u4e2a\u7b80\u5355\u7684\u6a21\u5f0f<\/h3>\n<p>A2A \u4e3a\u6240\u6709\u667a\u80fd\u4f53\u95f4\u901a\u4fe1\u4f7f\u7528\u5355\u4e00\u7684\u6807\u51c6\u5316\u6d88\u606f\u683c\u5f0f\u3002 \u8fd9\u79cd\u7b80\u6d01\u6027\u975e\u5e38\u5f3a\u5927\uff0c\u667a\u80fd\u4f53\u65e0\u9700\u5b66\u4e60\u6570\u5341\u79cd\u4e0d\u540c\u7684 API\uff0c\u53ea\u9700\u7406\u89e3\u4e00\u79cd\u901a\u4fe1\u6a21\u5f0f\u5373\u53ef\u3002<\/p>\n<p>\u6bcf\u6b21\u4ea4\u4e92\u90fd\u9075\u5faa\u76f8\u540c\u7684\u6d41\u7a0b\uff1a<\/p>\n<ol>\n<li><strong>\u53d1\u9001<\/strong>\u5e26\u6709\u4efb\u52a1\u8bf7\u6c42\u548c\u53c2\u6570\u7684\u6d88\u606f\u3002<\/li>\n<li><strong>\u63a5\u6536<\/strong>\u5373\u65f6\u7ed3\u679c\u6216\u7528\u4e8e\u8ddf\u8e2a\u7684\u4efb\u52a1\u3002<\/li>\n<li>\u5bf9\u4e8e\u8f83\u957f\u65f6\u95f4\u7684\u64cd\u4f5c\uff0c\u901a\u8fc7\u5b9e\u65f6\u901a\u9053<strong>\u83b7\u53d6\u52a8\u6001<\/strong>\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u79cd\u901a\u7528\u65b9\u5f0f\u610f\u5473\u7740\u6dfb\u52a0\u65b0\u7684\u667a\u80fd\u4f53\u529f\u80fd\u65f6\u65e0\u9700\u66f4\u6539\u901a\u4fe1\u534f\u8bae\u3002 \u65e0\u8bba\u60a8\u662f\u8ba9\u667a\u80fd\u4f53\u603b\u7ed3\u6587\u672c\u8fd8\u662f\u751f\u6210\u590d\u6742\u62a5\u544a\uff0c\u6d88\u606f\u7ed3\u6784\u59cb\u7ec8\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<p>\u5728 Koog \u4e2d\uff0c\u4f7f\u7528\u5df2\u5b9e\u73b0\u7684\u5bf9\u8c61\u548c\u534f\u8bae\u521b\u5efa\u548c\u53d1\u9001\u6d88\u606f\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">val message = Message(\n    role = Role.User,\n    parts = listOf(\n        TextPart(\"\u64b0\u5199\u4e00\u7bc7\u5173\u4e8e AI \u667a\u80fd\u4f53\u672a\u6765\u7684\u535a\u6587\")\n    ),\n    contextId = \"blog-project-456\"\n)\n\nval request = Request(\n    data = MessageSendParams(\n        message = message,\n        configuration = MessageConfiguration(\n            blocking = false, \/\/ \u83b7\u5f97\u7b2c\u4e00\u6b21\u56de\u7b54\n            historyLength = 5 \/\/ \u5305\u62ec\u4e0a\u4e0b\u6587\n        )\n    )\n)\n\nval response = client.sendMessage(request)<\/pre>\n<p>\u6d88\u606f\u683c\u5f0f\u901a\u8fc7\u4e0d\u540c\u7684 <em>Part<\/em> \u7c7b\u578b\u652f\u6301\u4e30\u5bcc\u5185\u5bb9\uff0c\u5305\u62ec\u7528\u4e8e\u7eaf\u6587\u672c\u5185\u5bb9\u7684 TextPart\u3001\u7528\u4e8e\u6587\u4ef6\u9644\u4ef6\u7684 FilePart\uff0c\u4ee5\u53ca\u7528\u4e8e\u7ed3\u6784\u5316 JSON \u6570\u636e\u7684 DataPart\u3002<\/p>\n<p>\u8fd9\u79cd\u7edf\u4e00\u7ed3\u6784\u610f\u5473\u7740\u60a8\u7684 Koog \u667a\u80fd\u4f53\u80fd\u591f\u4e0e\u4efb\u4f55\u517c\u5bb9 A2A \u7684\u667a\u80fd\u4f53\u65e0\u7f1d\u901a\u4fe1\uff0c\u65e0\u8bba\u76ee\u6807\u667a\u80fd\u4f53\u7528\u4e8e\u6587\u672c\u5904\u7406\u3001\u6587\u4ef6\u5206\u6790\u8fd8\u662f\u590d\u6742\u7684\u6570\u636e\u8f6c\u6362\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u4efb\u52a1\u751f\u547d\u5468\u671f\uff1a\u667a\u80fd\u5de5\u4f5c\u6d41<\/h3>\n<p>A2A \u4f1a\u6839\u636e\u4efb\u52a1\u7684\u590d\u6742\u6027\u548c\u6301\u7eed\u65f6\u95f4\u667a\u80fd\u7ba1\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u5de5\u4f5c\uff1a<\/p>\n<p><strong>\u5373\u65f6\u6d88\u606f<\/strong>\uff1a\u50cf\u6587\u672c\u683c\u5f0f\u8bbe\u7f6e\u6216\u5feb\u901f\u8ba1\u7b97\u8fd9\u6837\u7684\u7b80\u5355\u64cd\u4f5c\u4f1a\u76f4\u63a5\u5728 AI \u7684\u56de\u7b54\u4e2d\u8fd4\u56de\u7ed3\u679c\u3002 \u65e0\u9700\u7b49\u5f85\u6216\u8ddf\u8e2a\u3002<\/p>\n<p><strong>\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4efb\u52a1<\/strong>\uff1a\u6587\u6863\u5206\u6790\u6216\u591a\u6b65\u9aa4\u5de5\u4f5c\u6d41\u4e4b\u7c7b\u7684\u590d\u6742\u64cd\u4f5c\u4f1a\u88ab\u8c03\u5ea6\u5e76\u8fd4\u56de\u4e00\u4e2a\u4efb\u52a1\u3002 \u53d1\u51fa\u8bf7\u6c42\u7684\u667a\u80fd\u4f53\u968f\u540e\u53ef\u4ee5\u76d1\u63a7\u8fdb\u5ea6\u5e76\u5728\u4efb\u52a1\u5b8c\u6210\u540e\u68c0\u7d22\u7ed3\u679c\u3002<\/p>\n<p><strong>\u5b9e\u65f6\u52a8\u6001<\/strong>\uff1a\u5bf9\u4e8e\u8017\u65f6\u8f83\u957f\u7684\u64cd\u4f5c\uff0c\u670d\u52a1\u5668\u53d1\u9001\u4e8b\u4ef6 (SSE) \u4f1a\u63d0\u4f9b\u5b9e\u65f6\u8fdb\u5ea6\u66f4\u65b0\u3002 \u8fd9\u4f7f\u667a\u80fd\u4f53\u80fd\u591f\u968f\u65f6\u4e86\u89e3\u6700\u65b0\u60c5\u51b5\uff0c\u800c\u65e0\u9700\u6301\u7eed\u8fdb\u884c\u8f6e\u8be2\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class BlogWriterExecutor : AgentExecutor {\n    override suspend fun execute(\n        context: RequestContext,\n        eventProcessor: SessionEventProcessor\n    ) {\n        val task = Task(\n            contextId = context.contextId,\n            status = TaskStatus(\n                state = TaskState.Submitted,\n                message = Message(\n                    role = Role.Agent,\n                    parts = listOf(TextPart(\"\u5df2\u6536\u5230\u535a\u6587\u64b0\u5199\u8bf7\u6c42\")),\n                    contextId = context.contextId,\n    \t\t\ttaskId = context.taskId,\n                )\n            )\n        )\n\n        eventProcessor.sendTaskEvent(task)\n\t ...\n    }\n}\n<\/pre>\n<h3 class=\"wp-block-heading\">\u5185\u7f6e\u5b89\u5168\u6027\uff1a\u4ec5\u91c7\u7528\u884c\u4e1a\u6807\u51c6<\/h3>\n<p>A2A \u5e76\u672a\u91cd\u65b0\u53d1\u660e\u5b89\u5168\u673a\u5236\u3002 \u76f8\u53cd\uff0c\u5b83\u4f9d\u8d56\u4e8e\u7ecf\u8fc7\u9a8c\u8bc1\u4e14\u88ab\u5e7f\u6cdb\u91c7\u7528\u7684\u6807\u51c6\uff0c\u5982 OAuth2\u3001API \u5bc6\u94a5\u548c\u6807\u51c6 HTTPS\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u610f\u5473\u7740\u5f00\u53d1\u8005\u65e0\u9700\u5b66\u4e60\u65b0\u7684\u8eab\u4efd\u9a8c\u8bc1\u65b9\u6848\u3002 \u5982\u679c\u60a8\u4e86\u89e3\u73b0\u4ee3 Web API \u7684\u5b89\u5168\u6027\uff0c\u60a8\u5c31\u5df2\u7ecf\u4e86\u89e3\u4e86 A2A \u7684\u5b89\u5168\u6027\u3002 \u8be5\u7cfb\u7edf\u7ee7\u627f\u4e86\u8fd9\u4e9b\u65e2\u5b9a\u6807\u51c6\u6240\u5e26\u6765\u7684\u6240\u6709\u5de5\u5177\u3001\u6700\u4f73\u505a\u6cd5\u4e0e\u5b89\u5168\u5ba1\u6838\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"json\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\"securitySchemes\": {\n   \"google\": {\n       \"openIdConnectUrl\": \"https:\/\/accounts.google.com\/.well-known\/openid-configuration\",\n       \"type\": \"openIdConnect\"\n   }\n}\n<\/pre>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class AuthorizedA2AServer(\n    agentExecutor: AgentExecutor,\n    agentCard: AgentCard,\n    agentCardExtended: AgentCard? = null,\n    taskStorage: TaskStorage = InMemoryTaskStorage(),\n    messageStorage: MessageStorage = InMemoryMessageStorage(),\n    private val authService: AuthService, \/\/ \u8d1f\u8d23\u8eab\u4efd\u9a8c\u8bc1\u7684\u670d\u52a1\n) : A2AServer(\n    agentExecutor = agentExecutor,\n    agentCard = agentCard,\n    agentCardExtended = agentCardExtended,\n    taskStorage = taskStorage,\n    messageStorage = messageStorage,\n) {\n\n    private suspend fun authenticateAndAuthorize(\n        ctx: ServerCallContext,\n        requiredPermission: String\n    ): AuthenticatedUser {\n        val token = ctx.headers[\"Authorization\"]?.firstOrNull()\n            ?: throw A2AInvalidParamsException(\"\u7f3a\u5c11\u6388\u6743\u4ee4\u724c\")\n\n        val user = authService.authenticate(token)\n            ?: throw A2AInvalidParamsException(\"\u6388\u6743\u4ee4\u724c\u65e0\u6548\")\n\n        if (requiredPermission !in user.permissions) {\n            throw A2AUnsupportedOperationException(\"\u6743\u9650\u4e0d\u8db3\")\n        }\n\n        return user\n    }\n\n   override suspend fun onSendMessage(\n        request: Request,\n        ctx: ServerCallContext\n    ): Response {\n        val user = authenticateAndAuthorize(ctx, requiredPermission = \"send_message\")\n\n        \/\/ \u901a\u8fc7\u4e0a\u4e0b\u6587\u72b6\u6001\u5c06\u7528\u6237\u6570\u636e\u4f20\u9012\u7ed9\u667a\u80fd\u4f53\u6267\u884c\u5668\n        val enrichedCtx = ctx.copy(\n            state = ctx.state + (AuthStateKeys.USER to user)\n        )\n\n        \/\/ \u59d4\u6258\u7ed9\u5177\u6709\u4e30\u5bcc\u4e0a\u4e0b\u6587\u7684\u7236\u5b9e\u73b0\n        return super.onSendMessage(request, enrichedCtx)\n    }\n\n   \/\/ \u5176\u4f59\u7684\u5c01\u88c5 A2A \u65b9\u6cd5\n   \/\/ ...\n}<\/pre>\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u5c06 Koog \u667a\u80fd\u4f53\u4e0e A2A \u96c6\u6210<\/h2>\n<p>Koog \u6846\u67b6\u5185\u7f6e\u4e86 A2A \u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u3002 \u8fd9\u610f\u5473\u7740\u60a8\u7684 Koog \u667a\u80fd\u4f53\u53ef\u4ee5\u4e0e\u5176\u4ed6\u652f\u6301 A2A \u7684\u667a\u80fd\u4f53\u65e0\u7f1d\u901a\u4fe1\uff0c\u540c\u65f6\u4e5f\u80fd\u8ba9\u81ea\u5df1\u88ab\u5916\u754c\u53d1\u73b0\u3002 \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u5982\u4f55\u5c06 Koog \u667a\u80fd\u4f53\u5c01\u88c5\u5230 A2A \u670d\u52a1\u5668\u4e2d<\/h3>\n<p>\u7b2c\u4e00\u6b65\uff0c\u4e3a\u667a\u80fd\u4f53\u5b9a\u4e49\u4e00\u4e2a\u7b56\u7565\u3002 Koog \u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u8f6c\u6362\u5668\uff08<em>toKoogMessage<\/em> \u548c <em>toA2AMessage<\/em>\uff09\uff0c\u53ef\u4ee5\u5728 Koog \u6d88\u606f\u683c\u5f0f\u4e0e A2A \u6d88\u606f\u683c\u5f0f\u4e4b\u95f4\u8fdb\u884c\u65e0\u7f1d\u8f6c\u6362\uff0c\u800c\u65e0\u9700\u624b\u52a8\u5e8f\u5217\u5316\u3002 \u4e13\u7528\u8282\u70b9\uff08\u5982 <em>nodeA2ASendMessage<\/em>\uff09\u4f1a\u5904\u7406\u6d88\u606f\u4ea4\u6362\u8fc7\u7a0b\uff0c\u8fd9\u5c31\u4f7f\u901a\u4fe1\u5de5\u4f5c\u6d41\u7684\u5b9e\u73b0\u53d8\u5f97\u7b80\u5355\u76f4\u63a5\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">fun blogpostWritingStrategy() = strategy(\"blogpost-writer-strategy\") {\n    val blogpostRequest by node { input -&gt;\n        val userMessage = input.toKoogMessage().content\n\n        llm.writeSession {\n            user {\n                +\"\u6839\u636e\u7528\u6237\u7684\u8981\u6c42\u64b0\u5199\u4e00\u7bc7\u535a\u6587\"\n                +xml {\n                    tag(\"user_request\") {\n                        +userMessage\n                    }\n                }\n            }\n\n            requestLLM().toA2AMessage()\n        }\n    }\n\n    val sendMessage by nodeA2ARespondMessage()\n\n    nodeStart then blogpostRequest then sendMessage the nodeFinish\n}<\/pre>\n<p>\u7b2c\u4e8c\u6b65\uff0c\u5b9a\u4e49\u667a\u80fd\u4f53\u672c\u8eab\u3002 \u5b89\u88c5 <em>A2AServer<\/em> \u529f\u80fd\u540e\uff0c\u60a8\u7684\u667a\u80fd\u4f53\u5c31\u53d8\u5f97\u53ef\u88ab\u53d1\u73b0\u5e76\u4e14\u53ef\u88ab\u751f\u6001\u7cfb\u7edf\u4e2d\u7684\u5176\u4ed6\u667a\u80fd\u4f53\u8bbf\u95ee\uff0c\u4ece\u800c\u80fd\u591f\u521b\u5efa\u590d\u6742\u7684\u7f51\u7edc\uff0c\u8ba9\u5404\u79cd\u4e13\u7528\u667a\u80fd\u4f53\u8fdb\u884c\u65e0\u7f1d\u534f\u4f5c\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">fun createBlogpostWritingAgent(\n    requestContext: RequestContext,\n    eventProcessor: SessionEventProcessor\n): AIAgent {\n     \/\/ \u83b7\u53d6\u5f53\u524d\u5bf9\u8bdd\u4e0a\u4e0b\u6587\u4e2d\u7684\u73b0\u6709\u6d88\u606f\n     val messageHistory = requestContext.messageStorage.getAll().map { it.toKoogMessage() }\n\n     val agentConfig = AIAgentConfig(\n        prompt = prompt(\"blogpost\") {\n            system(\"You are a blogpost writing agent\")\n\n            messages(messageHistory)\n        },\n        model = GoogleModels.Gemini2_5Flash,\n        maxAgentIterations = 5\n    )\n\n    return agent = AIAgent(\n        promptExecutor = MultiLLMPromptExecutor(\n            LLMProvider.Google to GoogleLLMClient(System.getenv(\"GOOGLE_API_KEY\")),\n        ),\n        strategy = blogpostWritingStrategy(),\n        agentConfig = agentConfig\n    ) {\n        install(A2AAgentServer) {\n            this.context = requestContext\n            this.eventProcessor = eventProcessor\n        }\n\n        handleEvents {\n            onAgentFinished { ctx -&gt;\n                \/\/ \u4f7f\u7528\u6765\u81ea\u667a\u80fd\u4f53\u7684\u56de\u7b54\u66f4\u65b0\u5f53\u524d\u5bf9\u8bdd\u4e0a\u4e0b\u6587\n                val resultMessge = ctx.result as A2AMessage\n                requestContext.messageStorage.save(resultMessge)\n            }\n        }\n    }\n}<\/pre>\n<p>\u7b2c\u4e09\u6b65\uff0c\u6211\u4eec\u9700\u8981\u5c06\u667a\u80fd\u4f53\u5c01\u88c5\u5230\u6267\u884c\u5668\u4e2d\uff0c\u7136\u540e\u5b9a\u4e49\u4e00\u4e2a\u670d\u52a1\u5668\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class BlogpostAgentExecutor : AgentExecutor {\n    override suspend fun execute(\n        context: RequestContext,\n        eventProcessor: SessionEventProcessor\n    ) {\n        createBlogpostWritingAgent(context, eventProcessor)\n            .run(context.params.message)\n    }\n}\n\nval a2aServer = A2AServer(\n    agentExecutor = BlogpostAgentExecutor(),\n    agentCard = agentCard,\n)<\/pre>\n<p>\u6700\u540e\u4e00\u6b65\u662f\u5b9a\u4e49\u670d\u52a1\u5668\u4f20\u8f93\u5e76\u8fd0\u884c\u8be5\u670d\u52a1\u5668\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">val transport = HttpJSONRPCServerTransport(\n    requestHandler = a2aServer\n)\n\ntransport.start(\n    engineFactory = Netty,\n    port = 8080,\n    path = \"\/a2a\",\n    wait = true,\n    agentCard = agentCard,\n    agentCardPath = A2AConsts.AGENT_CARD_WELL_KNOWN_PATH\n)<\/pre>\n<p>\u73b0\u5728\uff0c\u60a8\u7684\u667a\u80fd\u4f53\u5df2\u51c6\u5907\u597d\u5904\u7406\u8bf7\u6c42\u4e86\uff01\u00a0<\/p>\n<h3 class=\"wp-block-heading\">\u5982\u4f55\u4ece Koog \u667a\u80fd\u4f53\u8c03\u7528\u5176\u4ed6\u652f\u6301 A2A \u7684\u667a\u80fd\u4f53<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u914d\u7f6e\u4e00\u4e2a A2A \u5ba2\u6237\u7aef\uff0c\u5e76\u8fde\u63a5\u5b83\u4ee5\u83b7\u53d6\u667a\u80fd\u4f53\u5361\u7247\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">val agentUrl = \"https:\/\/example.com\"\n\nval cardResolver = UrlAgentCardResolver(\n    baseUrl = agentUrl,\n    path = A2AConsts.AGENT_CARD_WELL_KNOWN_PATH,\n)\n\nval transport = HttpJSONRPCClientTransport(\n    url = agentUrl,\n)\n\nval a2aClient = A2AClient(\n    transport = transport,\n    agentCardResolver = cardResolver\n)\n\n\/\/ \u521d\u59cb\u5316\u5ba2\u6237\u7aef\u5e76\u83b7\u53d6\u5361\u7247\na2aClient.connect()<\/pre>\n<p>\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u5728\u60a8\u7684\u7b56\u7565\u4e2d\u4f7f\u7528 <em>nodeA2ASendMessage<\/em> \u6216 <em>nodeA2ASendMessageStreaming<\/em> \u6765\u8c03\u7528\u8fd9\u4e9b\u5ba2\u6237\u7aef\uff0c\u5e76\u63a5\u6536\u6d88\u606f\u6216\u4efb\u52a1\u54cd\u5e94\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">val agentId = \"agent_id\"\nval agent = AIAgent(\n    promptExecutor = MultiLLMPromptExecutor(\n        LLMProvider.Google to GoogleLLMClient(System.getenv(\"GOOGLE_API_KEY\")),\n    ),\n    strategy = strategy(\"a2a\") {\n        val nodePrepareRequest by node&lt;String, A2AClientRequest&gt; { input -&gt;\n            A2AClientRequest(\n                agentId = agentId,\n                callContext = ClientCallContext.Default,\n                params = MessageSendParams(\n                    message = A2AMessage(\n                        messageId = Uuid.random().toString(),\n                        role = Role.User,\n                        parts = listOf(\n                            TextPart(input)\n                        )\n                    )\n                )\n            )\n        }\n        val nodeA2A by nodeA2AClientSendMessage(agentId)\n        \n        val nodeProcessResponse by node {\n            \/\/ Process event\n            when (it) {\n                is A2AMessage -&gt; it.parts\n                    .filterIsInstance()\n                    .joinToString(separator = \"n\") { it.text }\n                \n                is Task -&gt; it.artifacts\n                    .orEmpty()\n                    .flatMap { it.parts }\n                    .filterIsInstance()\n                    .joinToString(separator = \"n\") { it.text }\n            }\n        }\n\n        nodeStart then nodePrepareRequest then nodeA2A then nodeProcessResponse then nodeFinish\n\n    },\n    agentConfig = agentConfig\n) {\n   install(A2AAgentClient) {\n        this.a2aClients = mapOf(agentId to client)\n    }\n}\n\nagent.run(\"\u64b0\u5199\u5173\u4e8e A2A \u548c Koog \u96c6\u6210\u7684\u535a\u6587\")<\/pre>\n<h2 class=\"wp-block-heading\">\u540e\u7eed\u6b65\u9aa4<\/h2>\n<p>\u5982\u9700\u6df1\u5165\u4e86\u89e3 Koog \u548c A2A\uff0c\u8bf7\u67e5\u770b\u4ee5\u4e0b\u5b9e\u7528\u8d44\u6599\uff1a<\/p>\n<p><a href=\"https:\/\/docs.koog.ai\/\" target=\"_blank\" rel=\"noopener\">Koog \u6587\u6863<\/a><\/p>\n<p><a href=\"https:\/\/a2a-protocol.org\/latest\/specification\/\" target=\"_blank\" rel=\"noopener\">A2A \u89c4\u8303<\/a><\/p>\n<p><a href=\"https:\/\/github.com\/JetBrains\/koog\/tree\/develop\/examples\/simple-examples\/src\/main\/kotlin\/ai\/koog\/agents\/example\/a2a\" target=\"_blank\" rel=\"noopener\" data-type=\"link\" data-id=\"https:\/\/github.com\/JetBrains\/koog\/tree\/develop\/examples\/simple-examples\/src\/main\/kotlin\/ai\/koog\/agents\/example\/a2a\">Koog A2A \u793a\u4f8b<\/a><\/p>\n\n\n<p><\/p>\n\n\n\n<p>\u672c\u535a\u6587\u82f1\u6587\u539f\u4f5c\u8005\uff1a<\/p>\n\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img decoding=\"async\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2025\/10\/T0288D531-UL11E3JG5-1870329d7bae-512.png\" width=\"200\" height=\"200\" alt=\"Andrey Bragin\" loading=\"lazy\"  class=\"avatar avatar-200 wp-user-avatar wp-user-avatar-200 photo avatar-default\">\n                <\/div>\n                <div class=\"about-author__box-text\">\n                                            <h4>Andrey Bragin<\/h4>\n                                                        <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n","protected":false},"author":1297,"featured_media":652033,"comment_status":"closed","ping_status":"closed","template":"","categories":[89,907],"tags":[6847,8724],"cross-post-tag":[6355],"acf":[],"_links":{"self":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/ai\/652029"}],"collection":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/ai"}],"about":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/types\/ai"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/users\/1297"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=652029"}],"version-history":[{"count":3,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/ai\/652029\/revisions"}],"predecessor-version":[{"id":652032,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/ai\/652029\/revisions\/652032"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/media\/652033"}],"wp:attachment":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=652029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=652029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=652029"},{"taxonomy":"cross-post-tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/cross-post-tag?post=652029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}