{"id":46926,"date":"2023-01-30T05:28:05","date_gmt":"2023-06-24T15:56:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8kafka%e9%80%9a%e8%bf%87nifi%e8%bf%9b%e8%a1%8c%e6%b6%88%e8%b4%b9%ef%bc%8c%e5%b0%86%e6%95%b0%e6%8d%ae%e9%80%9a%e8%bf%87websocket%e4%bc%a0%e9%80%92%e5%88%b0zeppelin%ef%bc%8c%e5%9c%a8d3\/"},"modified":"2024-04-29T12:11:25","modified_gmt":"2024-04-29T04:11:25","slug":"%e4%bd%bf%e7%94%a8kafka%e9%80%9a%e8%bf%87nifi%e8%bf%9b%e8%a1%8c%e6%b6%88%e8%b4%b9%ef%bc%8c%e5%b0%86%e6%95%b0%e6%8d%ae%e9%80%9a%e8%bf%87websocket%e4%bc%a0%e9%80%92%e5%88%b0zeppelin%ef%bc%8c%e5%9c%a8d3","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8kafka%e9%80%9a%e8%bf%87nifi%e8%bf%9b%e8%a1%8c%e6%b6%88%e8%b4%b9%ef%bc%8c%e5%b0%86%e6%95%b0%e6%8d%ae%e9%80%9a%e8%bf%87websocket%e4%bc%a0%e9%80%92%e5%88%b0zeppelin%ef%bc%8c%e5%9c%a8d3\/","title":{"rendered":"\u4f7f\u7528Kafka\u901a\u8fc7NiFi\u8fdb\u884c\u6d88\u8d39\uff0c\u5c06\u6570\u636e\u901a\u8fc7WebSocket\u4f20\u9012\u5230Zeppelin\uff0c\u5728D3\u4e2d\u5b9e\u65f6\u7ed8\u5236\u56fe\u5f62"},"content":{"rendered":"<p>\u8fd9\u662fHortonworks Advent Calendar 12\/21\u7684\u6587\u7ae0\u3002<\/p>\n<p>\u7ee712\/3 NiFi 1.1.0\u7684WebSocket\u652f\u6301\u4e4b\u540e\uff0c\u8fd9\u6b21\u8fd8\u662f\u5173\u4e8eWebSocket\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u4ee5\u6559\u7a0b\u5f62\u5f0f\u63d0\u4f9b\u5b66\u4e60Zeppelin\u3001NiFi\u3001Kafka\u548cD3\u7b49\u591a\u79cd\u77e5\u8bc6\u7684\u5212\u7b97\u9009\u62e9\u3002<\/p>\n<p>\u524d\u51e0\u5929\uff0c\u6211\u6536\u5230\u4e00\u4e2a\u670b\u53cb\u7684\u5efa\u8bae\uff0c\u4ed6\u8bf4\uff1a\u201c\u5982\u679c\u80fd\u591f\u901a\u8fc7NiFi\u7684WebSocket\uff0c\u5728Zeppelin\u4e0a\u5b9e\u65f6\u663e\u793a\u56fe\u8868\uff0c\u90a3\u4e0d\u662f\u5f88\u9177\u5417\uff1f\u201d \u8fd9\u5c31\u662f\u6211\u5f00\u59cb\u8fdb\u884c\u7684\u539f\u56e0\u3002<\/p>\n<p>\u9996\u5148\uff0c\u4ece\u8bbe\u8ba1\u56fe\u7684\u5f62\u8c61\u5f00\u59cb\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/5-0.png\" alt=\"\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30b0\u30e9\u30d5\u63cf\u753b\" \/><\/div>\n<p>\u98de\u8247\uff08\u5de6\u4e0a\uff09\u662f\u4e00\u4e2a\u65b9\u4fbf\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5c06\u591a\u4e2a\u56fe\u8868\u4ee5\u7b14\u8bb0\u672c\u7684\u5f62\u5f0f\u6c47\u603b\uff0c\u5e76\u5728\u6210\u5458\u4e4b\u95f4\u5171\u4eab\u548c\u5206\u6790\u53ef\u89c6\u5316\u6570\u636e\u3002<\/p>\n<p>\u8fd9\u6b21\u6211\u4eec\u5c06\u5728Zeppelin\u4e2d\u663e\u793a\u4e00\u4e2a\u50cf\u56fe\u4e2d\u90a3\u6837\u7684\u997c\u56fe\u3002\u8981\u5728\u997c\u56fe\u4e2d\u663e\u793a\u7684\u6570\u636e\u5c06\u901a\u8fc7NiFi\u901a\u8fc7WebSocket\u63a8\u9001\u3002<\/p>\n<p>\u65e2\u7136\u6211\u4eec\u53ef\u4ee5\u4ece\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u63a8\u9001\uff0c\u90a3\u4e48\u8ba9\u6211\u4eec\u8bd5\u8bd5\u4eceNiFi\u63a5\u6536Kafka\u6d88\u606f\u3002\u6211\u4eec\u8bbe\u60f3\u4e86\u4e00\u79cd\u4f7f\u7528\u573a\u666f\uff0c\u5373\u5c06\u8bf8\u5982Spark\u548cStorm\u7b49\u6d41\u5206\u6790\u7ed3\u679c\u53d1\u5e03\u5230Kafka\uff0c\u5e76\u5728Zeppelin\u4e2d\u5b9e\u65f6\u663e\u793a\u3002<\/p>\n<p>\u8981\u8bd5\u7528\uff0c\u60a8\u9700\u8981\u5b89\u88c5\u548c\u542f\u52a8Zeppelin\u3001NiFi\u3001Kafka\u548cWeb\u6d4f\u89c8\u5668\u3002\u5b89\u88c5\u548c\u542f\u52a8\u5404\u4e2a\u8f6f\u4ef6\u53ea\u9700\u51e0\u4e2a\u547d\u4ee4\uff0c\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<h2>\u642d\u5efa\u73af\u5883<\/h2>\n<h3>Zeppelin\u7684\u5b89\u88c5\u548c\u542f\u52a8<\/h3>\n<p>\u4eceZeppelin\u7684\u4e0b\u8f7d\u9875\u9762\u4e0b\u8f7d\u4e8c\u8fdb\u5236\u5305\uff0c\u5e76\u89e3\u538b\u5230\u4efb\u610f\u4f4d\u7f6e\u3002\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u540e\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc78080\u7aef\u53e3\u8bbf\u95eeZeppelin\u7684\u7528\u6237\u754c\u9762\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">cd <\/span>zeppelin-0.6.2-bin-all\r\n<span class=\"nv\">$ <\/span>.\/bin\/zeppelin-daemon.sh start\r\n<\/code><\/pre>\n<h3>\u5b89\u88c5\u548c\u542f\u52a8 Kafka<\/h3>\n<p>\u6309\u7167Kafka\u7684QuickStart\u6307\u5357\uff0c\u4e0b\u8f7d\u5e76\u89e3\u538b\u5230\u5408\u9002\u7684\u4f4d\u7f6e\uff0c\u7136\u540e\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9996\u5148\u542f\u52a8Zookeeper\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>bin\/zookeeper-server-start.sh config\/zookeeper.properties\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\u6253\u5f00\u53e6\u4e00\u4e2a\u7ec8\u7aef\u7a97\u53e3\uff0c\u542f\u52a8Kafka\u670d\u52a1\u5668\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>bin\/kafka-server-start.sh config\/server.properties\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u518d\u6253\u5f00\u4e00\u4e2a\u7ec8\u7aef\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u4e3b\u9898\u5427\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"nv\">$ <\/span>bin\/kafka-topics.sh <span class=\"nt\">--create<\/span> <span class=\"nt\">--zookeeper<\/span> localhost:2181 <span class=\"nt\">--replication-factor<\/span> 1 <span class=\"nt\">--partitions<\/span> 1 <span class=\"nt\">--topic<\/span> <span class=\"nb\">test<\/span>\r\n\r\n<span class=\"c\"># \u3061\u3083\u3093\u3068\u4f5c\u6210\u3067\u304d\u305f\u304b\u78ba\u8a8d<\/span>\r\n<span class=\"nv\">$ <\/span>bin\/kafka-topics.sh <span class=\"nt\">--list<\/span> <span class=\"nt\">--zookeeper<\/span> localhost:2181\r\n<span class=\"nb\">test<\/span>\r\n<\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u4f7f\u7528QuickStart\u4e2d\u63d0\u4f9b\u7684\u547d\u4ee4\uff0c\u901a\u8fc7\u7ec8\u7aef\u786e\u8ba4\u662f\u5426\u53ef\u4ee5\u53d1\u9001\u548c\u63a5\u6536\u6d88\u606f\u3002<\/p>\n<h3>\u5b89\u88c5\u548c\u542f\u52a8NiFi<\/h3>\n<p>\u4eceNiFi\u7684\u4e0b\u8f7d\u9875\u9762\u4e0b\u8f7d\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u89e3\u538b\u5230\u9002\u5f53\u7684\u4f4d\u7f6e\u3002<\/p>\n<p>\u5728\u5c55\u5f00\u7684\u76ee\u5f55\u4e2d\u6709\u4e00\u4e2a\u8bbe\u7f6e\u6587\u4ef6\uff0c\u8ba9\u6211\u4eec\u7a0d\u5fae\u4fee\u6539\u4e00\u4e0b\u3002Zeppelin\u548cNiFi\u7684\u9ed8\u8ba4HTTP\u76d1\u542c\u7aef\u53e3\u90fd\u662f8080\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u66f4\u6539NiFi\u7684\u7aef\u53e3\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>vi conf\/nifi.properties\r\n\r\n<span class=\"c\"># web properties #<\/span>\r\nnifi.web.war.directory<span class=\"o\">=<\/span>.\/lib\r\nnifi.web.http.host<span class=\"o\">=<\/span>\r\nnifi.web.http.port<span class=\"o\">=<\/span>8081 \/\/ 8080\u4ee5\u5916\u306b\u5909\u3048\u308b\r\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u542f\u52a8NiFi\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>.\/bin\/nifi.sh start\r\n<span class=\"c\"># \u8d77\u52d5\u306b\u306f\u5c11\u3005\u6642\u9593\u304c\u304b\u304b\u308b\u306e\u3067\u3001\u30ed\u30b0\u3092\u898b\u3068\u304d\u307e\u3057\u3087\u3046<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">tail<\/span> <span class=\"nt\">-f<\/span> logs\/nifi-app.log\r\n<span class=\"o\">(<\/span>\u6b21\u306e\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u308c\u3070\u3001\u8d77\u52d5\u304c\u5b8c\u4e86\u3057\u305f\u5408\u56f3\u3067\u3059<span class=\"o\">)<\/span>\r\n2016-12-20 14:58:48,166 INFO <span class=\"o\">[<\/span>main] org.apache.nifi.web.server.JettyServer NiFi has started. The UI is available at the following URLs:\r\n2016-12-20 14:58:48,166 INFO <span class=\"o\">[<\/span>main] org.apache.nifi.web.server.JettyServer http:\/\/127.0.0.1:8081\/nifi\r\n<\/code><\/pre>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u5728\u6d4f\u89c8\u5668\u4e2d\u901a\u8fc7localhost:8081\u8bbf\u95eeNiFi\u7684\u7528\u6237\u754c\u9762\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6765\u6784\u5efaNiFi\u7684\u6d41\u7a0b\u5427\uff01<\/p>\n<h2>\u521b\u5efa\u4e00\u4e2aNiFi\u6d41\u7a0b<\/h2>\n<h3>\u9996\u5148\u9700\u8981\u6570\u636e\u6d41\uff0c\u4eceKafka\u5230NiFi\u3002<\/h3>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6784\u5efa\u4e00\u4e2a\u76f8\u5bf9\u590d\u6742\u7684\u6570\u636e\u6d41\u3002\u5373\u4f7f\u4e00\u5f00\u59cb\u65e0\u6cd5\u5b8c\u5168\u8bbe\u8ba1\u597d\uff0c\u4f46\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u548c\u9010\u6b65\u642d\u5efa\u6d41\u7a0b\u7684\u65b9\u5f0f\uff0c\u8fd9\u6b63\u662fNiFi\u7684\u4f18\u52bf\u6240\u5728\u3002\u73b0\u5728\u6211\u4eec\u6709\u4e00\u4e2a\u5df2\u51c6\u5907\u597d\u7684Kafka\u4e3b\u9898\uff0c\u8ba9\u6211\u4eec\u4ece\u90a3\u91cc\u5f00\u59cb\u83b7\u53d6\u6570\u636e\u5427\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/32-0.png\" alt=\"image\" \/><\/div>\n<p>\u5c06\u753b\u9762\u4e0a\u90e8\u6392\u5217\u7684\u56fe\u6807\u4e2d\u6700\u5de6\u8fb9\u7684Processor\u56fe\u6807\u62d6\u653e\u5230\u767d\u8272\u753b\u5e03\u4e0a\u3002<\/p>\n<p>\u5f53\u5728\u641c\u7d22\u6846\u4e2d\u8f93\u5165&#8221;kafka&#8221;\uff0c\u4f1a\u51fa\u73b0\u5404\u79cd\u7ed3\u679c\u3002\u9488\u5bf9\u6bcf\u4e2aKafka\u7248\u672c\uff0c\u90fd\u6709\u76f8\u5e94\u7684\u5904\u7406\u5668\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/35-0.png\" alt=\"image\" \/><\/div>\n<div>\n<div class=\"post-table\">Kafka\u30d7\u30ed\u30bb\u30c3\u30b50.8.xGetKafka, PutKafka0.9.xConsumeKafka, PublishKafka0.10.xConsumeKafka_0_10, PublishKafka_0_10<\/div>\n<\/div>\n<p>\u4e3a\u4e86\u8ddf\u4e0aKafka\u5feb\u901f\u7684\u7248\u672c\u5347\u7ea7\uff0c\u5de7\u5999\u5730\u4f7f\u7528NiFi\u4e5f\u662f\u4e0d\u9519\u7684\u9009\u62e9\u3002\u5728NiFi\u4e2d\uff0c\u53ef\u4ee5\u521b\u5efa\u9002\u5e94\u591a\u4e2aKafka\u7248\u672c\u7684\u6570\u636e\u6d41\u3002<\/p>\n<p>\u597d\u7684\uff0c\u56e0\u4e3a\u8fd9\u6b21\u4f7f\u7528\u7684\u662fKafka 0.10.x\uff0c\u6240\u4ee5\u8bf7\u53cc\u51fb\u9009\u62e9ConsumeKafka_0_10\u3002<\/p>\n<p>\u606d\u559c\uff01\u73b0\u5728\u60a8\u5df2\u6210\u529f\u6dfb\u52a0\u4e86NiFi\u5904\u7406\u5668\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/40-0.png\" alt=\"image\" \/><\/div>\n<p>\u5c06\u9f20\u6807\u60ac\u505c\u5728\u8b66\u544a\u56fe\u6807\u4e0a\u65f6\uff0c\u60a8\u5c06\u6536\u5230 &#8220;\u4e3b\u9898\u540d\u79f0&#8221;\u3001 &#8220;\u7ec4ID&#8221;\u548c&#8221;\u5173\u7cfb\u6210\u529f&#8221;\u672a\u8bbe\u7f6e\u7684\u63d0\u793a\u3002\u8bf7\u53f3\u51fb\u5904\u7406\u5668\uff0c\u7136\u540e\u70b9\u51fb&#8221;\u914d\u7f6e&#8221;\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/42-0.png\" alt=\"image\" \/><\/div>\n<p>\u5728PROPERTIES\u9009\u9879\u5361\u4e2d\uff0c\u70b9\u51fbTopic Name(s)\u7684Value\u5217\uff0c\u5c06\u5148\u524d\u521b\u5efa\u7684\u4e3b\u9898\u540d\u79f0test\u8f93\u5165\u5230Group ID\u4e2d\uff0c\u53ef\u4ee5\u8f93\u5165\u4efb\u4f55\u5185\u5bb9\u3002\u5728\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u4e86Consumer Group\u7684\u540d\u79f0nifi\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/44-0.png\" alt=\"image\" \/><\/div>\n<p>\u5982\u679c\u8bbe\u7f6e\u5b8c\u6bd5\uff0c\u8bf7\u70b9\u51fb&#8221;\u5e94\u7528&#8221;\u6309\u94ae\u5173\u95ed\u5bf9\u8bdd\u6846\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/46-0.png\" alt=\"image\" \/><\/div>\n<p>\u4ee5\u4e0b\u662f\u9019\u53e5\u8a71\u7684\u4e2d\u6587\u540c\u7fa9\u53e5: \u300c\u9019\u500b\u8b66\u544a\u610f\u5473\u8457\u95dc\u4fc2\u6210\u529f\u662f\u4e0d\u53ef\u80fd\u7684\u3002\u9019\u610f\u5473\u8457\u63a5\u6536\u5230\u7684\u6d88\u606f\u5f9eKafka\u6c92\u6709\u8a2d\u5b9a\u8f49\u767c\u76ee\u6a19\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b\u3002\u300d<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u975e\u5e38\u65b9\u4fbf\u7684\u662fUpdateAttribute\u5904\u7406\u5668\u3002\u8ba9\u6211\u4eec\u6dfb\u52a0UpdateAttribute\u5904\u7406\u5668\u5427\u3002<\/p>\n<p>\u7136\u540e\uff0c\u5c06\u9f20\u6807\u60ac\u505c\u5728ConsumeKafka_0_10\u4e2d\u95f4\uff0c\u4f1a\u663e\u793a\u4e00\u4e2a\u5706\u5f62\u7bad\u5934\uff0c\u5c06\u5176\u62d6\u52a8\u5e76\u653e\u7f6e\u5728UpdateAttribute\u5904\u7406\u5668\u4e0a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/50-0.png\" alt=\"image\" \/><\/div>\n<p>\u7136\u540e\uff0c\u4f1a\u663e\u793a\u201c\u521b\u5efa\u8fde\u63a5\u201d\u7684\u5bf9\u8bdd\u6846\u3002\u70b9\u51fb\u201c\u6dfb\u52a0\u201d\u6765\u521b\u5efa\u8fde\u63a5\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/52-0.png\" alt=\"image\" \/><\/div>\n<p>\u901a\u8fc7\u8fd9\u6837\u64cd\u4f5c\uff0c\u6210\u529f\u5730\u521b\u5efa\u4e86Connection\u7684\u8fde\u63a5\u3002\u7531\u4e8e\u5df2\u5b8c\u6210ConsumeKafka_0_10\u7684\u8bbe\u7f6e\uff0c\u8b66\u544a\u56fe\u6807\u5df2\u6d88\u5931\uff0c\u5e76\u4e14\u53d8\u4e3a\u505c\u6b62\u72b6\u6001\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/54-0.png\" alt=\"image\" \/><\/div>\n<p>UpdateAttribute \u8b66\u544a\u65e0\u9700\u5728\u610f\uff0c\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u3002\u5c1d\u8bd5\u542f\u52a8 ConsumeKafka_0_10\uff01<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/56-0.png\" alt=\"image\" \/><\/div>\n<p>\u5904\u7406\u5668\u56fe\u6807\u53d8\u6210\u4e86\u64ad\u653e\u4e2d\u7684\u56fe\u6807\uff0c\u5e76\u5076\u5c14\u5728\u53f3\u4e0a\u65b9\u80fd\u770b\u5230\u6570\u5b571\u3002\u8fd9\u8868\u793a\u6d3b\u52a8\u7ebf\u7a0b\u6570\u3002\u5728NiFi\u4e2d\uff0c\u540c\u4e00\u6d41\u7a0b\u4e2d\u7684\u591a\u4e2a\u5904\u7406\u5668\u4f1a\u5e76\u884c\u8fd0\u884c\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/58-0.png\" alt=\"image\" \/><\/div>\n<h3>\u5411Kafka\u4e3b\u9898\u53d1\u9001\u6d88\u606f<\/h3>\n<p>NiFi\u5df2\u51c6\u5907\u5c31\u7eea\uff0c\u73b0\u5728\u8ba9\u6211\u4eec\u5c06\u6d88\u606f\u53d1\u9001\u5230Kafka\u3002\u8bf7\u5728\u63a7\u5236\u53f0\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>bin\/kafka-console-producer.sh <span class=\"nt\">--broker-list<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> <span class=\"nb\">test<\/span>\r\n<span class=\"o\">(<\/span>\u4f55\u304b\u30c6\u30ad\u30b9\u30c8\u3092\u5165\u529b\u3057\u3066Enter\u3059\u308b\u3068\u9001\u4fe1\u3055\u308c\u308b<span class=\"o\">)<\/span>\r\nHello Kafka.\r\n<\/code><\/pre>\n<p>\u5728\u7b49\u5f85\u4e0b\u4e00\u4e2a\u8f93\u5165\u7684\u72b6\u6001\u4e0b\uff0c\u4fdd\u6301\u8be5\u547d\u4ee4\u4e00\u76f4\u8fd0\u884c\u3002<\/p>\n<p>\u5f53\u6211\u8fd4\u56de\u5230NiFi\u7684\u7528\u6237\u754c\u9762\u65f6\uff0c\u5b83\u663e\u793a&#8221;Queued 1&#8243;\u5e76\u6807\u8bb0\u4e3a&#8221;success&#8221;\uff01\u4f3c\u4e4e\u63a5\u6536\u5230\u4e86\u67d0\u4e9b\u4e1c\u897f\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/64-0.png\" alt=\"image\" \/><\/div>\n<p>\u53f3\u51fb\u8fde\u63a5\uff0c\u9009\u62e9\u201c\u5217\u8868\u961f\u5217\u201d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/66-0.png\" alt=\"image\" \/><\/div>\n<p>\u5f53\u7136\uff0c\u60a8\u53ef\u4ee5\u5728\u6210\u529f\u7684\u6d88\u606f\u7559\u5b58\u5728NiFi\u4e2d\u8fdb\u884c\u786e\u8ba4\u3002\u5728NiFi\u4e2d\uff0c\u5c06\u8fd9\u4e9b\u6570\u636e\u79f0\u4e3aFlowFile\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/68-0.png\" alt=\"image\" \/><\/div>\n<p>\u70b9\u51fb\u5de6\u4fa7\u7684\u4fe1\u606f\u56fe\u6807\uff0c\u60a8\u53ef\u4ee5\u67e5\u770bFlowFile\u7684\u5404\u79cd\u4fe1\u606f\u3002<\/p>\n<h4>\u8ff7\u4f60\u6d4b\u9a8c<\/h4>\n<p>\u6211\u4eec\u53ef\u4ee5\u5728NiFi\u7684\u7528\u6237\u754c\u9762\u4e0a\u786e\u8ba4\u4ece\u63a7\u5236\u53f0\u53d1\u9001\u7684\u5b57\u7b26\u4e32\u3002\u60a8\u77e5\u9053\u53ef\u4ee5\u5728\u54ea\u91cc\u67e5\u770b\u5417\uff1f\u8ba9\u6211\u4eec\u63a2\u7d22\u4e00\u4e0bUI\u5427 \ud83d\ude42<\/p>\n<h2>\u4f7f\u7528NiFi\u901a\u8fc7WebSocket\u5c06\u6570\u636e\u63a8\u9001<\/h2>\n<p>\u5361\u592b\u5361\uff08Kafka\uff09-&gt; NiFi\u7684\u8def\u5f84\u5df2\u7ecf\u5f00\u8f9f\uff0c\u539f\u59cb\u56fe\u50cf\u4e2d\u7ed8\u5236\u7684\u53f3\u4e0b\u90e8\u5206\u7684\u997c\u5df2\u7ecf\u5b8c\u6210\uff01\u63a5\u4e0b\u6765\u6211\u4eec\u8981\u521b\u5efa\u901a\u8fc7WebSocket\u5c06\u63a5\u6536\u5230\u7684\u6d88\u606f\u63a8\u9001\u7ed9\u5ba2\u6237\u7aef\u7684\u90e8\u5206\u3002<\/p>\n<h3>\u7b80\u5316\u8bdd\u9898\uff0c\u9996\u5148\u4ece\u5355\u4e00\u5ba2\u6237\u5f00\u59cb\u3002<\/h3>\n<p>\u7a81\u7136\u521b\u5efa\u590d\u6742\u7684\u6d41\u7a0b\u662f\u4e00\u4ef6\u56f0\u96be\u7684\u4e8b\u60c5\u3002\u9996\u5148\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7b80\u5316\u7684\u6d41\u7a0b\u6765\u5236\u4f5c\u539f\u578b\u3002<\/p>\n<p>WebSocket\u53ef\u4ee5\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u3002NiFi\u7684WebSocket\u7ec4\u4ef6\u901a\u8fc7ID\u7ba1\u7406\u6bcf\u4e2a\u5ba2\u6237\u7aef\u7684\u4f1a\u8bdd\u3002\u7531\u4e8e\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u9700\u8981\u4e00\u4e9b\u6280\u5de7\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5148\u63a8\u8fdf\u5904\u7406\uff0c\u5e76\u5c06\u5176\u8bbe\u8ba1\u4e3a\u53ef\u4ee5\u4e0e\u5355\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u4ea4\u4e92\u7684\u6d41\u7a0b\u3002<\/p>\n<h2>\u5c06NiFi\u53d8\u6210WebSocket\u670d\u52a1\u5668\u3002<\/h2>\n<p>\u8bf7\u53c2\u8003\u6211\u4e4b\u524d\u7684\u6587\u7ae0\uff0c\u8be6\u7ec6\u4ecb\u7ecd\u4e86NiFi\u7684WebSocket\u5b9e\u73b0\u3002<\/p>\n<p>\u4e3a\u4e86\u6574\u7406WebSocket\u5468\u56f4\u7684\u6d41\u7a0b\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u5904\u7406\u7ec4\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/80-0.png\" alt=\"image\" \/><\/div>\n<p>\u5728\u753b\u5e03\u4e0a\u653e\u7f6e\u4e00\u4e2a&#8221;Process Group&#8221;\u56fe\u6807\uff0c\u5e76\u968f\u610f\u4e3a\u5176\u547d\u540d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/82-0.png\" alt=\"image\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/83-0.png\" alt=\"image\" \/><\/div>\n<p>\u5f53\u60a8\u53cc\u51fb\u6240\u521b\u5efa\u7684\u8fdb\u7a0b\u7ec4\u65f6\uff0c\u60a8\u53ef\u4ee5\u8fdb\u5165\u5176\u4e2d\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u8fdb\u884cWebSocket\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u914d\u7f6e\u3002<\/p>\n<h3>\u8bf7\u4f7f\u7528\u539f\u751f\u7684\u4e2d\u6587\u8fdb\u884c\u4ee5\u4e0b\u91ca\u4e49\uff0c\u53ea\u9700\u8981\u7ed9\u51fa\u4e00\u4e2a\u9009\u9879\uff1a<\/h3>\n<p>ListenWebSocket\u548cJettyWebSocketServer\u3002<\/p>\n<p>\u653e\u7f6eListenWebSocket\u5904\u7406\u5668\uff0c\u5e76\u5728&#8221;\u914d\u7f6e&#8221;\u4e2d\u663e\u793a&#8221;PROPERTIES&#8221;\u9009\u9879\u5361\u3002\u4eceWebSocket\u670d\u52a1\u5668\u63a7\u5236\u5668\u670d\u52a1\u4e2d\u9009\u62e9&#8221;\u521b\u5efa\u65b0\u670d\u52a1&#8221;\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/87-0.png\" alt=\"image\" \/><\/div>\n<p>\u521b\u5efaJettyWebSocketServer\uff0c\u5e76\u5c06Server URL Path\u6307\u5b9a\u4e3a\/realtime-data\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/89-0.png\" alt=\"image\" \/><\/div>\n<p>\u7533\u8bf7\u5e76\u5b8c\u6210\u5904\u7406\u5668\u7684\u8bbe\u7f6e\u3002<\/p>\n<p>\u8bf7\u518d\u6b21\u6253\u5f00ListenWebSocket\u7684\u5c5e\u6027\uff0c\u7136\u540e\u70b9\u51fb\u65c1\u8fb9\u663e\u793a\u7684\u7bad\u5934\uff0c\u518d\u70b9\u51fb\u7f16\u8f91\u56fe\u6807\uff0c\u8df3\u8f6c\u5230ControllerService\u7684\u8bbe\u7f6e\u9875\u9762\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/92-0.png\" alt=\"image\" \/><\/div>\n<p>\u5c06Listen Port\u8bbe\u7f6e\u4e3a9091\u5e76\u70b9\u51fbAPPLY\u4ee5\u4f7f\u8bbe\u7f6e\u751f\u6548\u3002\u7136\u540e\u70b9\u51fb\u95ea\u7535\u56fe\u6807\u4ee5\u542f\u7528\u6b64ControllerService\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/94-0.png\" alt=\"image\" \/><\/div>\n<p>\u518d\u6b21\u4eceListenWebSocket\u7684Configure\u4e2d\u6253\u5f00SETTINGS\u9009\u9879\u5361\u3002\u7531\u4e8e\u4e8c\u8fdb\u5236\u6d88\u606f\u548c\u6587\u672c\u6d88\u606f\u672c\u6b21\u4e0d\u4f1a\u88ab\u63a5\u6536\u548c\u4f7f\u7528\uff0c\u6240\u4ee5\u5c06\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/96-0.png\" alt=\"image\" \/><\/div>\n<p>\u4e0eConsumeKafka\u76f8\u540c\uff0cconnected\u4e4b\u524d\u6682\u65f6\u653e\u7f6eUpdateAttribute\uff0c\u5e76\u542f\u52a8ListenWebSocket\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/98-0.png\" alt=\"image\" \/><\/div>\n<p>\u73b0\u5728\uff0c\u5df2\u7ecf\u51c6\u5907\u597d\u63a5\u53d7WebSocket\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u4e86\uff01<\/p>\n<h3>websocket.org\u7684\u56de\u97f3\u6d4b\u8bd5<\/h3>\n<p>\u4f7f\u7528websocket.org\u7684Echo Test\u8fdb\u884c\u8fde\u63a5\u786e\u8ba4\u3002<\/p>\n<p>\u8bf7\u5728 Location \u4e2d\u8f93\u5165\u8fde\u63a5\u5230 NiFi \u7684 URL\u3002\u8fde\u63a5\u540e\uff0c\u5982\u679c\u65e5\u5fd7\u4e2d\u663e\u793a\u201cCONNECTED\u201d\uff0c\u5219\u8868\u793a\u8fde\u63a5\u6210\u529f\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/103-0.png\" alt=\"image\" \/><\/div>\n<p>\u5728NiFi\u7684\u4e00\u4fa7\uff0c\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u4e8b\u4ef6\u5e94\u8be5\u4f1a\u751f\u6210\u4e3aFlowFile\u3002\u5f53\u4ece\u961f\u5217\u4e2d\u67e5\u770b\u5185\u5bb9\u65f6\uff0c\u5e94\u8be5\u4f1a\u8bbe\u7f6e\u4ee5\u4e0b\u5c5e\u6027\uff1a<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/105-0.png\" alt=\"image\" \/><\/div>\n<p>\u5982\u679c\u6709\u8fd9\u4e9b\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6d88\u606f\u8fd4\u56de\u7ed9\u8fde\u63a5\u7684WebSocket\u5ba2\u6237\u7aef\u3002<br \/>\n\u8ba9\u6211\u4eec\u5c06\u8fd9\u4e9b\u4fe1\u606f\u4fdd\u5b58\u5728NiFi\u7684\u7f13\u5b58\u4e2d\u3002<\/p>\n<h3>\u5c06WebSocket\u4f1a\u8bddID\u5b58\u50a8\u5230\u5206\u5e03\u5f0f\u7f13\u5b58\u4e2d\u3002<\/h3>\n<p>\u6765\u5427\uff0c\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4e00\u4e0b\u4f7f\u7528NiFi\u6807\u51c6\u63d0\u4f9b\u7684DistributedCache\u673a\u5236\u3002\u5b83\u7c7b\u4f3c\u4e8e\u5728NiFi\u4e0a\u8fd0\u884c\u7684\u5185\u5b58\u4e2d\u7684\u952e\u503c\u5b58\u50a8\u3002\u7b80\u5355\u5730\u8bf4\uff0c\u5b83\u5c31\u662f\u4e00\u4e2a\u5173\u8054\u6570\u7ec4\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4efb\u610f\u7684\u952e\u6765\u5b58\u50a8\u4efb\u610f\u7684\u503c\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u6d41\u7a0b\u7684\u5404\u4e2a\u5730\u65b9\u8fdb\u884c\u5171\u4eab\u3002<\/p>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2aDistributedCache\u670d\u52a1\u5668\u3002\u70b9\u51fbUI\u5de6\u4fa7\u7684\u64cd\u4f5c\u9762\u677f\u7684\u8bbe\u7f6e\u56fe\u6807\uff0c\u5c06\u663e\u793aControllerService\u7684\u5217\u8868\u9875\u9762\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/110-0.png\" alt=\"image\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/111-0.png\" alt=\"image\" \/><\/div>\n<p>\u8fd9\u91cc\u663e\u793a\u4e86\u521a\u521a\u521b\u5efa\u7684JettyWebSocketServer\uff0c\u5bf9\u5417\uff1f\u70b9\u51fb\u52a0\u53f7\u56fe\u6807\uff0c\u6211\u4eec\u6dfb\u52a0\u4e00\u4e2aDistributedMapCacheServer\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/113-0.png\" alt=\"image\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/114-0.png\" alt=\"image\" \/><\/div>\n<p>DistributedMapCacheServer\u7684\u914d\u7f6e\u53ef\u4ee5\u4fdd\u6301\u9ed8\u8ba4\u503c\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u9700\u8981\u6dfb\u52a0\u8fde\u63a5\u5230\u8be5\u7f13\u5b58\u670d\u52a1\u5668\u7684DistributedMapCacheClient\u3002\u5c06Server Hostname\u8bbe\u7f6e\u4e3alocalhost\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/116-0.png\" alt=\"image\" \/><\/div>\n<p>\u8ba9\u6211\u4eec\u542f\u7528\u5df2\u521b\u5efa\u7684\u7f13\u5b58\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u670d\u52a1\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/118-0.png\" alt=\"image\" \/><\/div>\n<p>\u51c6\u5907\u597d\u7f13\u5b58\u670d\u52a1\u5668\u540e\uff0c\u8ba9\u6211\u4eec\u5b58\u50a8\u6570\u636e\u3002\u6211\u4eec\u8981\u6355\u83b7WebSocket\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u751f\u6210\u7684\u4f1a\u8bddID\u3002\u7531\u4e8e\u7f13\u5b58\u670d\u52a1\u5668\u4f1a\u5b58\u50a8FlowFile\u7684\u5185\u5bb9\u90e8\u5206\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u63d0\u53d6websocket.session.id\u7684\u5c5e\u6027\u503c\uff0c\u5e76\u5c06\u5176\u62bd\u53d6\u5230\u5185\u5bb9\u90e8\u5206\u4e2d\u3002<\/p>\n<p>\u4f7f\u7528ReplaceText\u5904\u7406\u5668\u6765\u5b9e\u73b0\u6b64\u529f\u80fd\u3002\u8be5\u5904\u7406\u5668\u80fd\u591f\u7528\u4e8e\u66ff\u6362\u6587\u672c\u683c\u5f0fFlowFile\u5185\u5bb9\u4e2d\u7684\u5b57\u7b26\u4e32\u3002\u5c06Replacement Strategy\u8bbe\u7f6e\u4e3aAlways Replace\uff0c\u5c06Replacement Value\u8bbe\u7f6e\u4e3a${websocket.session.id}\u3002\u8fd9\u662fNiFi\u8868\u8fbe\u5f0f\uff0c\u5c06\u8fd4\u56deFlowFile\u5c5e\u6027\u7684\u503c\u3002\u8be6\u7ec6\u4fe1\u606f\u5c06\u5728\u4ee5\u540e\u7684\u673a\u4f1a\u4e2d\u63d0\u4f9b\u3002\u4f7f\u7528\u6b64\u8bbe\u7f6e\uff0c\u5c06\u4f7f\u7528\u76f8\u5e94\u7684\u5c5e\u6027\u503c\u66ff\u6362FlowFile\u5185\u5bb9\u7684\u503c\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/121-0.png\" alt=\"image\" \/><\/div>\n<p>\u6dfb\u52a0PutDistributedMapCache\u5904\u7406\u5668\u6765\u8fde\u63a5ReplaceText\u7684\u8f93\u51fa\u3002\u7f13\u5b58\u7684\u952e\u662f\u56fa\u5b9a\u503c\uff0c\u8bbe\u7f6e\u4e3awebsocket.session.id\u3002\u8fd8\u8981\u6307\u5b9a\u4e4b\u524d\u521b\u5efa\u7684DistributedMapCacheClientService\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/123-0.png\" alt=\"image\" \/><\/div>\n<p>\u867d\u7136\u53d8\u5f97\u5f88\u957f\uff0c\u4f46\u662f\u6211\u8ba4\u4e3a\u6309\u7167\u8fd9\u4e2a\u8fc7\u7a0b\u8fdb\u884c\u4e0b\u53bb\uff0c\u4f1a\u5f97\u5230\u5982\u4e0b\u56fe\u6240\u793a\u7684\u6d41\u7a0b\u3002\u5c06\u201cListenWebSocket\u201d\u7684\u201cconnected\u201d\u90e8\u5206\u7684\u84dd\u8272\u70b9\u62d6\u52a8\uff0c\u5c06\u8fde\u63a5\u76ee\u6807\u79fb\u52a8\u5230\u201cReplaceText\u201d\u4e2d\u3002\u8fd9\u4e5f\u662fNiFi\u72ec\u6709\u7684\u7279\u70b9\uff01<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/125-0.png\" alt=\"image\" \/><\/div>\n<p>\u66ff\u6362\u6587\u672c\uff08ReplaceText\uff09\u548c\u5206\u5e03\u5f0f\u6620\u5c04\u7f13\u5b58\u653e\u7f6e\uff08PutDistributedMapCache\uff09\u4e4b\u95f4\u7684\u6545\u969c\u5173\u7cfb\u5df2\u81ea\u52a8\u7ec8\u6b62\u3002\u6d41\u7a0b\u5df2\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u5b8c\u6210\uff1a<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/127-0.png\" alt=\"image\" \/><\/div>\n<p>\u8fd9\u4e2a\u751f\u6210\u7684WebSocket\u4f1a\u8bddID\u5df2\u7f13\u5b58\u5728\u7f13\u5b58\u4e2d\uff01<\/p>\n<h3>\u5c06\u4eceKafka\u83b7\u53d6\u7684\u6d88\u606f\u63a8\u9001\u5230WebSocket\u5ba2\u6237\u7aef\u3002<\/h3>\n<p>\u8ba9\u6211\u4eec\u6765\u5c1d\u8bd5\u5411WebSocket\u5ba2\u6237\u7aef\u63a8\u9001\u6d88\u606f\u5427\uff01\u6211\u4eec\u5c06\u4f7f\u7528PutWebSocket\u5904\u7406\u5668\u3002\u8ba9\u6211\u4eec\u67e5\u770b\u4e00\u4e0b\u8bbe\u7f6e\uff0c \u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/131-0.png\" alt=\"image\" \/><\/div>\n<p>\u4f1a\u8bddID\u3001\u63a7\u5236\u5668\u670d\u52a1ID\u548c\u7aef\u70b9ID\u662f\u6839\u636e\u4f20\u5165\u7684FlowFile\u8fdb\u884c\u89e3\u6790\u7684\u3002\u8fd9\u5728\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u65f6\u975e\u5e38\u6709\u6548\uff0c\u4f46\u7531\u4e8e\u672c\u6b21\u662f\u5355\u4e2a\u5ba2\u6237\u7aef\u7684\u539f\u578b\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u8bbe\u5b9a\u4e3a\u56fa\u5b9a\u503c\u3002<\/p>\n<p>\u70b9\u51fbControllerService\u5217\u8868\u4e2d\u7684JettyWebSocketServer\u4fe1\u606f\u56fe\u6807\uff0c\u5c06\u5176SETTINGS\u9009\u9879\u5361\u4e2d\u7684Id\u590d\u5236\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/134-0.png\" alt=\"image\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/135-0.png\" alt=\"image\" \/><\/div>\n<p>\u5c06\u5df2\u590d\u5236\u7684ControllerService\u7684Id\u8bbe\u7f6e\u4e3aPutWebSocket\u5904\u7406\u5668\u7684WebSocket ControllerService Id\u3002WebSocket\u7aef\u70b9Id\u53ea\u9700\u8981\u6307\u5b9aListenWebSocket\u5904\u7406\u5668\u6b63\u5728\u7b49\u5f85\u7684\u8def\u5f84\uff0c\u6240\u4ee5\u6211\u4eec\u8bbe\u4e3a\/realtime-data\u5427\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/137-0.png\" alt=\"image\" \/><\/div>\n<p>\u53ea\u8981\u6709WebSocket Session Id\uff0c\u5c31\u53ef\u4ee5\u5411WebSocket\u8fde\u63a5\u7684\u5bf9\u65b9\u8fd4\u56de\u6d88\u606f\u3002<\/p>\n<p>\u56e0\u4e3a\u6211\u4eec\u5df2\u7ecf\u5728DistributedCache\u4e2d\u4fdd\u5b58\u4e86\u4f1a\u8bddID\uff0c\u6240\u4ee5\u73b0\u5728\u9700\u8981\u914d\u7f6eFetchDistributedMapCache\u6765\u63d0\u53d6\u5b83\u3002\u5728Cache Entry Identifier\u4e2d\uff0c\u6211\u4eec\u5e94\u8be5\u6307\u5b9a\u56fa\u5b9a\u503c\u4e3awebsocket.session.id\u3002\u5728\u5b58\u50a8\u4f1a\u8bddID\u5230Distributed Cache Service\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u518d\u6b21\u5229\u7528\u4e4b\u524d\u7528\u4e8e\u5b58\u50a8\u4f1a\u8bddID\u7684ControllerService\u3002<\/p>\n<p>\u4e3a\u4e86\u628a\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u7684\u4f1a\u8bddID\u4fdd\u5b58\u5728websocket.session.id\u5c5e\u6027\u4e2d\uff0c\u9700\u8981\u8bbe\u7f6e\u5c06\u7f13\u5b58\u503c\u653e\u5165\u5c5e\u6027\u7684\u6b65\u9aa4\u3002<br \/>\n\u8fd9\u6837\u4e00\u6765\uff0c\u53ef\u4ee5\u5728FlowFile\u7684\u5185\u5bb9\u4e2d\u4fdd\u7559\u4eceKafka\u63a5\u6536\u5230\u7684\u6d88\u606f\uff0c\u5e76\u4e14\u8fd8\u53ef\u4ee5\u5c06WebSocket\u7684\u4f1a\u8bddID\u6dfb\u52a0\u5230\u5c5e\u6027\u4e2d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/141-0.png\" alt=\"image\" \/><\/div>\n<p>\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u5728\u540d\u4e3aWebSocket Server\u7684\u5904\u7406\u5668\u7ec4\u5185\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u7684\u5904\u7406\u5668\u3002\u800cConsumeKafka\u4f4d\u4e8e\u6839\u5904\u7406\u5668\u7ec4\u4e2d\u3002\u4e3a\u4e86\u5728\u5904\u7406\u5668\u7ec4\u4e4b\u95f4\u4f20\u9012\u6d41\u6587\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u5728\u6700\u524d\u9762\u6dfb\u52a0\u4e00\u4e2a\u8f93\u5165\u7aef\u53e3\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5c06\u8f93\u5165\u7aef\u53e3\u547d\u540d\u4e3apush\uff0c\u7528\u4e8e\u5c06\u4f20\u9012\u8fc7\u6765\u7684\u6d41\u6587\u4ef6\u63a8\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u5f00\u59cb\u63a8\u9001\u3001\u83b7\u53d6\u5206\u5e03\u5f0f\u5730\u56fe\u7f13\u5b58\u548c\u63d2\u5165WebSocket\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/144-0.png\" alt=\"image\" \/><\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u56de\u5230\u6839Process Group\u548cNiFi Flow\uff0c\u5c06\u4eceConsumeKafka_0_10\u83b7\u53d6\u7684\u6570\u636e\u4f20\u8f93\u5230WebSocket Server\uff0c\u5c06\u6574\u4e2a\u6d41\u7a0b\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/146-0.png\" alt=\"image\" \/><\/div>\n<p>\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528Kafka\u7684\u63a7\u5236\u53f0\u751f\u4ea7\u8005(console-producer)\u4ece\u63a7\u5236\u53f0\u53d1\u9001\u6d88\u606f\u3002\u540c\u65f6\uff0c\u6211\u4eec\u4e5f\u4f1a\u786e\u8ba4\u901a\u8fc7WebSocket\u662f\u5426\u53ef\u4ee5\u63a5\u6536\u5230Echo Test\u7684\u6d88\u606f\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/148-0.png\" alt=\"image\" \/><\/div>\n<p>\u54c7\uff01\u7ec8\u4e8e\u8054\u7cfb\u4e0a\u4e86\uff01<\/p>\n<h2>\u5728Zeppelin\u4e0a\u663e\u793a\u56fe\u8868<\/h2>\n<p>\u7ec8\u4e8e\u5230\u4e86\u4f7f\u7528Zeppelin\u7684\u65f6\u5019\u4e86\uff01\u4eceZeppelin\u7684\u7528\u6237\u754c\u9762(UI)\u5f00\u59cb\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7b14\u8bb0\u672c\u5427\u3002\u7b14\u8bb0\u672c\u7684\u540d\u79f0\u53ef\u4ee5\u4efb\u610f\u53d6\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/152-0.png\" alt=\"image\" \/><\/div>\n<p>\u8ba9\u6211\u4eec\u8bd5\u4e00\u8bd5\uff0c\u5728Zeppelin\u4e2d\u663e\u793a\u997c\u56fe\u3002\u8f93\u5165\u5982\u4e0b\u56fe\u6240\u793a\u7684\u4ee3\u7801\uff0c\u70b9\u51fb\u5f00\u59cb\u5373\u53ef\u663e\u793a\u997c\u56fe\uff1a<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/154-0.png\" alt=\"image\" \/><\/div>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u662f\u5c06\u5177\u6709\u952e\u503c\u5bf9\u7684\u4e8c\u7ef4\u8868\u5f62\u5f0f\u7684\u6570\u636e\u4f20\u9012\u7ed9Zeppelin\u3002\u7136\u540e\uff0cZeppelin\u53ef\u4ee5\u901a\u8fc7\u8868\u683c\u3001\u67f1\u72b6\u56fe\u3001\u997c\u56fe\u7b49\u591a\u79cd\u65b9\u5f0f\u6765\u663e\u793a\u8be5\u6570\u636e\u3002<\/p>\n<p>\u8fd9\u6b21\uff0c\u5982\u679c\u80fd\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u4f20\u9012\u901a\u8fc7WebSocket\u63a5\u6536\u5230\u7684\u6570\u636e\u5c31\u597d\u4e86\uff0c\u4f46\u662f\u6211\u4e0d\u77e5\u9053\u5177\u4f53\u7684\u65b9\u6cd5\u3002\u6682\u4e14\u4f7f\u7528%angular\u89e3\u91ca\u5668\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u81ea\u7531\u5730\u5b9a\u5236\u8f93\u51fa\uff0c\u6211\u4f1a\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\u3002\u5982\u679c\u6709\u4eba\u77e5\u9053\u66f4\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u8bf7\u544a\u8bc9\u6211\u3002<\/p>\n<h3>\u4f7f\u7528Angular\u89e3\u91ca\u5668\u6267\u884c\u4efb\u610f\u7684Javascript\u4ee3\u7801\u3002<\/h3>\n<p>\u5728Zeppelin\u4e2d\uff0c\u6709\u8bb8\u591a\u9884\u7f6e\u7684\u89e3\u91ca\u5668\u53ef\u4ee5\u4f7f\u7528\u3002\u5f53\u50cf%angular\u8fd9\u6837\u6307\u5b9a\u5f00\u5934\u65f6\uff0c\u53ef\u4ee5\u5207\u6362\u6267\u884c\u4ee3\u7801\u7684\u5f15\u64ce\u3002<\/p>\n<p>\u672c\u6b21\u6211\u4eec\u5c06\u4f7f\u7528Angular\u6765\u7f16\u5199JavaScript\u4ee3\u7801\u3002\u867d\u7136\u8bf4\u8d77\u6765\uff0c\u6211\u4eec\u5e76\u4e0d\u4f1a\u592a\u591a\u5730\u4f7f\u7528Angular\u672c\u8eab\u3002\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u8bd5\u8bd5\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801\u3002\u5728script\u6807\u7b7e\u4e2d\u6267\u884cJavaScript\u4ee3\u7801\uff0c\u5e76\u51c6\u5907\u4e00\u4e2a\u7528\u4e8e\u663e\u793a\u8f93\u51fa\u7ed3\u679c\u7684div\u6765\u6267\u884c\u3002\u8fd0\u884c\u540e\uff0c\u7ed3\u679c\u5c06\u663e\u793a\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/161-0.png\" alt=\"image\" \/><\/div>\n<h3>\u4f7f\u7528D3\u7ed8\u5236\u997c\u56fe<\/h3>\n<p>\u597d\u7684\uff0c\u73b0\u5728\u8ba9\u6211\u4eec\u4f7f\u7528D3\u7ed8\u5236\u997c\u56fe\u3002\u867d\u7136\u4ee3\u7801\u6bd4\u8f83\u957f\uff0c\u4f46\u8bf7\u5c1d\u8bd5\u5c06\u4ee5\u4e0b\u4ee3\u7801\u590d\u5236\u7c98\u8d34\u5230Zeppelin\u4e2d\u3002\u4e3a\u4e86\u786e\u4fdd\u5728\u540c\u4e00\u7b14\u8bb0\u672c\u4e2d\u521b\u5efa\u591a\u4e2a\u6bb5\u843d\u65f6\u4e0d\u91cd\u590d\uff0cgraphId\u4f1a\u6839\u636e\u987a\u5e8f\u8fdb\u884c\u7f16\u53f7\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n%angular\r\n\r\n&lt;script&gt;\r\nvar graphId = '#realtime-graph-2';\r\nvar w = 600;\r\nvar h = 400;\r\nvar r = Math.min(w, h) \/ 2;\r\nvar color = d3.scale.category20c();\r\n\r\nvar svg = d3.select(graphId).append('svg')\r\n            .attr('width', w)\r\n            .attr('height', h)\r\n            .append('g')\r\n            .attr('transform', 'translate(' + r + ',' + r + ')');\r\n\r\nvar pie = d3.layout.pie()\r\n            .sort(null)\r\n            .value(function(d) {return d.value});\r\n\r\nvar arc = d3.svg.arc()\r\n            .outerRadius(r);\r\n\r\n\r\nvar updatePiChart = function(dataPoints) {\r\n\r\n    var arcs = svg.selectAll('.slice')\r\n        .data(pie(dataPoints));\r\n\r\n\r\n    \/\/ Add new slices if needed.\r\n    var g = arcs.enter()\r\n        .append('g')\r\n        .attr('class', 'slice');\r\n    g.append('path');\r\n    g.append('text')\r\n        .attr('text-anchor', 'middle');\r\n\r\n    \/\/ Update existing and added slices.\r\n    arcs.select('path')\r\n        .attr('fill', function(d, i){\r\n            return color(i);\r\n        })\r\n        .attr('d', function(d) {\r\n            return arc(d);\r\n        });\r\n\r\n    arcs.select('text')\r\n        .attr('transform', function(d) {\r\n            d.innerRadius = 0;\r\n            d.outerRadius = r;\r\n            return 'translate(' + arc.centroid(d) + \")\";\r\n        })\r\n        .text(function(d){\r\n            return d.data.label;\r\n        });\r\n\r\n    \/\/ Remove exitted slices.\r\n    arcs.exit().remove();\r\n}\r\n\r\n&lt;\/script&gt;\r\n\r\n&lt;div id=\"realtime-graph-2\"&gt;\r\n&lt;\/div&gt;\r\n<\/code><\/pre>\n<p>D3\u8fd9\u90e8\u5206\u6709\u70b9\u590d\u6742\uff0c\u6211\u60f3\u89e3\u91ca\u4e00\u4e0b\uff0c\u4f46\u4f1a\u5728\u53e6\u4e00\u4e2a\u673a\u4f1a\u4e0a&#8230;\u6211\u5df2\u7ecf\u66f4\u65b0\u4e86updatePiChart\u51fd\u6570\uff0c\u4f20\u5165\u6570\u636e\u540e\u4f1a\u7ed8\u5236\u997c\u56fe\u3002\u5728Zeppelin\u4e0a\u6267\u884c\u8fd9\u6bb5\u4ee3\u7801\uff0c\u4f1a\u751f\u6210updatePiChart\u51fd\u6570\uff0c\u4f60\u53ef\u4ee5\u8bd5\u7740\u4eceWeb\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u8fd0\u884c\u5b83\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/166-0.png\" alt=\"image\" \/><\/div>\n<p>dataPoints\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u5b58\u50a8\u4e86\u5305\u542b\u6807\u7b7e\u548c\u6570\u503c\u7684\u5bf9\u8c61\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">[{<\/span><span class=\"nl\">\"label\"<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"a\"<\/span><span class=\"p\">,<\/span> <span class=\"nl\">\"value\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">},<\/span>\r\n <span class=\"p\">{<\/span><span class=\"nl\">\"label\"<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"b\"<\/span><span class=\"p\">,<\/span> <span class=\"nl\">\"value\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">2<\/span><span class=\"p\">},<\/span>\r\n <span class=\"p\">{<\/span><span class=\"nl\">\"label\"<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"c\"<\/span><span class=\"p\">,<\/span> <span class=\"nl\">\"value\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">3<\/span><span class=\"p\">}]<\/span>\r\n<\/code><\/pre>\n<p>\u4f60\u80fd\u6210\u529f\u663e\u793a\u56fe\u8868\u5417\uff1f\u5982\u679c\u4f60\u66f4\u6539\u4e86dataPoints\u7684\u5185\u5bb9\u5e76\u6267\u884cupdatePiChart\u51fd\u6570\uff0c\u6211\u8ba4\u4e3a\u997c\u56fe\u4f1a\u88ab\u66f4\u65b0\u3002<\/p>\n<p>\u53ea\u8981\u628a\u4eceWebSocket\u63a5\u6536\u5230\u7684\u6570\u636e\u4f20\u8f93\u8fc7\u6765\u5c31\u53ef\u4ee5\u4e86\uff01<\/p>\n<h3>\u4f7f\u7528WebSocket\u4e0eNiFi\u5efa\u7acb\u8fde\u63a5<\/h3>\n<p>\u5728\u5148\u524d\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5c06\u6dfb\u52a0\u4e0eNiFi\u5efa\u7acbWebSocket\u8fde\u63a5\u7684\u4ee3\u7801\u3002\u5fc5\u9700\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"post-pre\"><code>%angular\r\n\r\n&lt;script&gt;\r\nvar graphId = '#realtime-graph-2';\r\n\r\n\/\/ ...\r\n\r\nvar updatePiChart = function(dataPoints) {\r\n \/\/ ...\r\n}\r\n\r\n\r\n\/\/ \u3053\u3053\u304b\u3089\u8ffd\u52a0\r\nvar wsUri = \"ws:\/\/localhost:9091\/realtime-data\";\r\n\r\nwebsocket = new WebSocket(wsUri);\r\nwebsocket.onopen = function(evt) {console.log('connected')};\r\nwebsocket.onerror = function(evt) {console.log('ERR', evt)};\r\nwebsocket.onmessage = function(evt) {\r\n    console.log(evt)\r\n    var dataPoints = JSON.parse(evt.data);\r\n    updatePiChart(dataPoints);\r\n};\r\n&lt;\/script&gt;\r\n\r\n&lt;div id=\"realtime-graph-2\"&gt;\r\n&lt;\/div&gt;\r\n<\/code><\/pre>\n<h2>\u5361\u592b\u5361 -&gt; \u5c3c\u83f2 -&gt;\uff08WebSocket\uff09-&gt; \u6cfd\u83f2\u6797 -&gt; D3!!<\/h2>\n<p>\u8fd9\u6837\u4e00\u5207\u51c6\u5907\u5c31\u7eea\u4e86\uff01\u901a\u8fc7Zeppelin\u6267\u884c\u6bb5\u843d\u5e76\u4f7f\u7528WebSocket\u8fde\u63a5NiFi\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u4f7f\u7528console-publisher\u5c06dataPoints\u7684JSON\u5b57\u7b26\u4e32\u53d1\u9001\u5230Kafka\u3002<\/p>\n<p>NiFi\u6210\u4e3aWebSocket\u670d\u52a1\u5668\uff0c\u6210\u529f\u5b9e\u73b0\u5b9e\u65f6\u56fe\u8868\u66f4\u65b0\uff01<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/178-0.png\" alt=\"image\" \/><\/div>\n<h2>\u652f\u6301\u591a\u4e2aWebSocket\u5ba2\u6237\u7aef<\/h2>\n<p>\u4e3a\u4e86\u7b80\u5316\u95ee\u9898\uff0c\u5728\u672c\u6587\u4e2d\u4ec5\u9700\u8003\u8651\u5355\u4e00\u5ba2\u6237\u7aef\u3002\u6211\u4eec\u5c06WebSocket\u4f1a\u8bddID\u5b58\u50a8\u5728\u5206\u5e03\u5f0f\u7f13\u5b58\u4e2d\uff0c\u5e76\u5728\u4eceKafka\u63a5\u6536\u6d88\u606f\u65f6\u4f7f\u7528\u5b83\u3002<\/p>\n<p>\u5982\u679c\u8fd9\u6837\u7684\u8bdd\uff0c\u5f53\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u901a\u8fc7WebSocket\u8fde\u63a5\u65f6\uff0c\u7f13\u5b58\u4e2d\u7684WebSocket\u4f1a\u8bddID\u4f1a\u88ab\u66f4\u65b0\uff0c\u5bfc\u81f4\u65e0\u6cd5\u5728\u591a\u4e2a\u5ba2\u6237\u7aef\u4e0a\u4f7f\u7528\u3002<\/p>\n<p>\u5728NiFi\u7684\u6d41\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4ee5\u4e0b\u5faa\u73af\u7684\u4e00\u4e2a\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7b44913a08637a698b80\/183-0.png\" alt=\"\" \/><\/div>\n<p>\u5f53WebSocket\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\uff0c\u5c06\u5faa\u73af\u4e0d\u65ad\u5730\u6267\u884c\u6b64\u64cd\u4f5c\u3002\u5b83\u5c06\u63a5\u6536\u5230\u7684JSON\u6570\u636e\u548c\u63a5\u6536\u65f6\u95f4\u6233\u4e00\u8d77\u5b58\u50a8\u5728\u5206\u5e03\u5f0f\u7f13\u5b58\u4e2d\u3002<\/p>\n<p>\u5728\u5faa\u73af\u6d41\u6587\u4ef6\u4e2d\uff0c\u5305\u542bWebSocket\u4f1a\u8bddID\u3001\u63a7\u5236\u5668\u670d\u52a1ID\u3001\u7ec8\u7aef\u70b9ID\u548c\u6700\u540e\u7684\u63a8\u9001\u65f6\u95f4\u6233\u3002<\/p>\n<p>\u5f53\u4e0b\u68c0\u67e5\u7f13\u5b58\u65f6\uff0c\u5982\u679c\u4fe1\u606f\u6bd4\u4e0a\u6b21\u66f4\u65b0\u7684\u4fe1\u606f\u8981\u65b0\uff0c\u5c31\u5411WebSocket\u5ba2\u6237\u7aef\u53d1\u9001\u63a8\u9001\uff0c\u5426\u5219\u4ec0\u4e48\u90fd\u4e0d\u505a\u7ee7\u7eed\u5faa\u73af\u3002<\/p>\n<p>\u5982\u679c\u6784\u5efa\u8fd9\u6837\u7684\u6d41\u7a0b\uff0c\u6bcf\u5f53\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2aFlow File\uff0c\u5e76\u4e14\u5ba2\u6237\u7aef\u7684\u4fe1\u606f\u5c06\u4fdd\u6301\u5728\u8be5Flow File\u5185\uff0c\u56e0\u6b64\u80fd\u591f\u652f\u6301\u591a\u4e2a\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u6211\u5df2\u7ecf\u5728Realtime Data Visualization with Zeppelin via NiFi 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