{"id":1293,"date":"2018-07-10T10:39:01","date_gmt":"2018-07-10T02:39:01","guid":{"rendered":"https:\/\/www.xiaobo.li\/?p=1293"},"modified":"2018-07-10T10:39:01","modified_gmt":"2018-07-10T02:39:01","slug":"mqtt-%e5%8d%8f%e8%ae%ae-client-id-%e9%95%bf%e5%ba%a6%e4%b8%8d%e8%83%bd%e8%b6%85%e8%bf%8723%e4%b8%aa%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/1293","title":{"rendered":"MQTT \u534f\u8bae Client ID \u957f\u5ea6\u4e0d\u80fd\u8d85\u8fc723\u4e2a\u5b57\u7b26"},"content":{"rendered":"<p>MqttException: MQIsdp ClientId &gt; 23 bytes<\/p>\n<p>ClientId\u7684\u957f\u5ea6\u5927\u4e8e23\u65f6\uff0c\u65e0\u6cd5\u94fe\u63a5MQTT\u670d\u52a1\u5668\u3002<\/p>\n<p>\u534f\u8bae\u8981\u6c42\uff1a\u5ba2\u6237\u7aef\u6807\u8bc6\u7b26(Client ID)\u662f\u4ecb\u4e8e1\u548c23\u4e2a\u5b57\u7b26\u957f\u5ea6,\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7684\u552f\u4e00\u6807\u8bc6\u3002<\/p>\n<p>\u5b83\u5fc5\u987b\u5728\u641c\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u4e00\u53f0\u670d\u52a1\u5668\u662f\u552f\u4e00\u7684,\u662f\u5728\u5904\u7406QoS\u7ea7\u522b1\u548c2\u7684\u6d88\u606fID\u4e2d\u7684\u5173\u952e\u3002<\/p>\n<p>\u5982\u679c\u5ba2\u6237\u7aefID\u5305\u542b23\u4e2a\u5b57\u7b26,\u670d\u52a1\u5668\u54cd\u5e94CONNECT\u6d88\u606f,\u901a\u8fc7\u4e00\u4e2aCONNACK,\u8fd4\u56de\u78012:\u6807\u8bc6\u7b26\u88ab\u62d2\u7edd\u3002<\/p>\n<p>\u82f1\u6587\u539f\u7248\u7684\u534f\u8bae\u4e2d\u662f\u8fd9\u6837\u63cf\u8ff0\u7684\uff1a<\/p>\n<div class=\"page\" title=\"Page 29\">\n<div class=\"layoutArea\">\n<div class=\"column\">\n<p><a href=\"https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1294\" src=\"https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2.jpg\" alt=\"\" width=\"683\" height=\"240\" srcset=\"https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2.jpg 1524w, https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2-300x106.jpg 300w, https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2-768x270.jpg 768w, https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2-1024x360.jpg 1024w, https:\/\/www.xiaobo.li\/notes\/wp-content\/uploads\/2018\/07\/11-2-850x300.jpg 850w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>..<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MqttException: MQIsdp ClientId &gt; 23 b &hellip; <a href=\"https:\/\/www.xiaobo.li\/notes\/archives\/1293\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[330],"tags":[],"class_list":["post-1293","post","type-post","status-publish","format-standard","hentry","category-mq"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/1293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=1293"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/1293\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=1293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=1293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=1293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}