{"id":730,"date":"2018-01-23T15:57:02","date_gmt":"2018-01-23T07:57:02","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=730"},"modified":"2018-01-23T15:57:02","modified_gmt":"2018-01-23T07:57:02","slug":"apex-%e4%ba%8b%e4%bb%b6%e9%a9%b1%e5%8a%a8%ef%bc%881%ef%bc%89","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=730","title":{"rendered":"Apex-\u4e8b\u4ef6\u9a71\u52a8\uff081\uff09"},"content":{"rendered":"<div id=\"platform_events_architecture_objectives\" class=\"topic nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<h2 id=\"Tdxn4tBK-heading2\" class=\"helpHead2\">\u5b66\u4e60\u76ee\u6807<\/h2>\n<div class=\"body\">\n<div id=\"p2\" class=\"p\">\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/p>\n<ul class=\"ul bulletList\">\n<li class=\"li\">\u5217\u51fa\u57fa\u4e8e\u4e8b\u4ef6\u7684\u8f6f\u4ef6\u4f53\u7cfb\u7ed3\u6784\u7684\u7ec4\u4ef6\u3002<\/li>\n<li 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id=\"platform_events_architecture_components\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<h2 id=\"Tdxn4tBK-heading4\" class=\"helpHead2\"><span id=\"topic-title\" class=\"ph\">\u4e8b\u4ef6\u9a71\u52a8\u7cfb\u7edf\u7684\u7ec4\u4ef6<\/span><\/h2>\n<div class=\"body conbody\">\n<p class=\"p\">\u5728\u6211\u4eec\u7ee7\u7eed\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u5b9a\u4e49\u4e00\u4e9b\u672f\u8bed\u3002<\/p>\n<dl class=\"dl detailList\">\n<dt class=\"dt dlterm\">Event<\/dt>\n<dd class=\"dd\">\u5728\u4e1a\u52a1\u6d41\u7a0b\u4e2d\u6709\u610f\u4e49\u7684\u72b6\u6001\u53d8\u5316\u4f8b\u5982\uff0c\u91c7\u8d2d\u8ba2\u5355\u7684\u653e\u7f6e\u662f\u4e00\u4e2a\u6709\u610f\u4e49\u7684\u4e8b\u4ef6\uff0c\u56e0\u4e3a\u8ba2\u5355\u5c65\u884c\u4e2d\u5fc3\u5e0c\u671b\u5728\u5904\u7406\u8ba2\u5355\u524d\u6536\u5230\u901a\u77e5\u3002<\/dd>\n<dt class=\"dt dlterm\">Event message<\/dt>\n<dd 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class=\"dd\">\u4ece\u9891\u9053\u63a5\u6536\u8baf\u606f\u7684\u9891\u9053\u7684\u8ba2\u9605\u8005\u3002\u4f8b\u5982\uff0c\u901a\u77e5\u65b0\u8ba2\u5355\u7684\u8ba2\u5355\u5c65\u884c\u5e94\u7528\u7a0b\u5e8f\u3002<\/dd>\n<\/dl>\n<p class=\"p\">\u4e0b\u56fe\u8bf4\u660e\u4e86\u4e00\u4e2a\u57fa\u4e8e\u4e8b\u4ef6\u7684\u8f6f\u4ef6\u4f53\u7cfb\u7ed3\u6784\u3002<\/p>\n<div class=\"imagecenter\"><span class=\"image image-block\"><img decoding=\"async\" class=\"image image-block\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/image\/upload\/doc\/trailhead\/en-us9d0edf028a3e0056757e93a3244a43de.png\" alt=\"A diagram showing components of event-based systems: event producers, which feed information into the event bus, which sends messages to the event consumers\" 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class=\"p\">\u6211\u4eec\u6765\u770b\u770b\u4f7f\u7528\u5e73\u53f0\u4e8b\u4ef6\u7684\u4e00\u4e9b\u4e1a\u52a1\u573a\u666f\u3002\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0cSalesforce\u548c\u5916\u90e8\u7cfb\u7edf\u901a\u8fc7\u5e73\u53f0\u4e8b\u4ef6\u6d88\u606f\u8fdb\u884c\u901a\u4fe1\u3002\u5728\u7b2c\u4e00\u79cd\u60c5\u51b5\u4e0b\uff0cSalesforce\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\u901a\u77e5\u4ea7\u54c1\u88c5\u8fd0\u8ba2\u5355\u7684\u5916\u90e8\u8ba2\u5355\u5c65\u884c\u5e94\u7528\u7a0b\u5e8f\u3002\u5728\u7b2c\u4e8c\u79cd\u60c5\u51b5\u4e0b\uff0c\u5916\u90e8\u4ea7\u54c1\u5e94\u7528\u7a0b\u5e8f\u901a\u77e5Salesforce\u5546\u54c1\u9000\u8d27\u3002\u6700\u540e\u4e00\u4e2a\u573a\u666f\u663e\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u89e6\u53d1\u5668\u5728Salesforce\u4e2d\u4f7f\u7528\u4e8b\u4ef6\u6d88\u606f\u3002<\/p>\n<div class=\"section\">\n<h3 id=\"Tdxn4tBK-heading6\" class=\"helpHead3\">\u5e73\u53f0\u5230\u5916\u90e8\u5e94\u7528\u7a0b\u5e8f\uff1a\u8ba2\u5355\u5c65\u884c\u4f9b\u5e94\u5546\u5e94\u7528\u7a0b\u5e8f<\/h3>\n<div class=\"p\">\n<p class=\"p\">\u5f53Salesforce\u5173\u95ed\u4e00\u4e2a\u673a\u4f1a\u65f6\uff0c\u60a8\u7684\u516c\u53f8\u5df2\u7ecf\u8d62\u5f97\u4e86\u4e0e\u5ba2\u6237\u7684\u4ea4\u6613\u3002\u5047\u8bbe\u60a8\u4f7f\u7528\u4f9b\u5e94\u5546\u6765\u8fd0\u9001\u4e0e\u673a\u4f1a\u76f8\u5173\u7684\u4ea7\u54c1\u3002\u6bcf\u4e2a\u4f9b\u5e94\u5546\u90fd\u6709\u4e00\u4e2a\u5904\u7406\u88c5\u8fd0\u8ba2\u5355\u7684\u5916\u90e8\u5e94\u7528\u3002\u5916\u90e8\u5e94\u7528\u7a0b\u5e8f\u76d1\u542c\u5e73\u53f0\u4e8b\u4ef6\u3002\u5f53\u673a\u4f1a\u5173\u95ed\u65f6\uff0c\u4f5c\u4e3aSalesforce\u4ea7\u54c1\u8ba2\u8d2d\u5e94\u7528\u7a0b\u5e8f\u4e00\u90e8\u5206\u7684\u89e6\u53d1\u5668\u4f1a\u89e6\u53d1\u5e76\u53d1\u5e03\u5e73\u53f0\u4e8b\u4ef6\u6d88\u606f\u3002\u6bcf\u4e2a\u4f9b\u5e94\u5546\u5e94\u7528\u7a0b\u5e8f\u90fd\u4f1a\u6536\u5230\u6709\u5173\u8be5\u4e8b\u4ef6\u7684\u901a\u77e5\uff0c\u5e76\u4e3a\u7279\u5b9a\u4ea7\u54c1\u521b\u5efa\u88c5\u8fd0\u8ba2\u5355\u3002<\/p>\n<div class=\"imagecenter\"><span class=\"image image-block\"><img decoding=\"async\" class=\"image image-block\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/image\/upload\/doc\/trailhead\/en-us85126d6dceaf1096fb82b59b5dade5f3.png\" alt=\"In this diagram, a product order app publishes an order event to an event bus. Various vendor apps subscribe to the event bus and receive the event.\" \/><\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"section\">\n<h3 id=\"Tdxn4tBK-heading7\" class=\"helpHead3\">\u5e73\u53f0\u5e94\u7528\u7a0b\u5e8f\u7684\u5916\u90e8\u5e94\u7528\u7a0b\u5e8f\uff1a\u5904\u7406Salesforce\u4e2d\u7684\u5546\u54c1\u9000\u8d27<\/h3>\n<div class=\"p\">\n<p class=\"p\">\u6bd4\u65b9\u8bf4\uff0c\u6709\u4eba\u60f3\u628a\u8d2d\u4e70\u7684\u5546\u54c1\u9000\u8fd8\u7ed9\u4f9b\u5e94\u5546\u3002\u5916\u90e8\u7cfb\u7edf\u5c06\u5546\u54c1\u9000\u8d27\u8bf7\u6c42\u53d1\u9001\u7ed9Salesforce\u8fdb\u884c\u5904\u7406\u3002\u5916\u90e8\u7cfb\u7edf\u53d1\u5e03\u5e73\u53f0\u4e8b\u4ef6\u4ee5\u63d0\u9192Salesforce\u8fd4\u56de\u5546\u54c1\u3002 Salesforce\u4e2d\u7684\u4e8b\u4ef6\u4fa6\u542c\u5668\uff08\u89e6\u53d1\u5668\uff09\u63a5\u6536\u4e8b\u4ef6\u5e76\u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u89e6\u53d1\u5668\u53ef\u80fd\u4f1a\u63d0\u9192\u9500\u552e\u4ee3\u8868\u9000\u8d27\uff0c\u5e76\u5411\u5ba2\u6237\u53d1\u9001\u786e\u8ba4\u7535\u5b50\u90ae\u4ef6\u3002<\/p>\n<div class=\"imagecenter\"><span class=\"image image-block\"><img decoding=\"async\" class=\"image image-block\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/image\/upload\/doc\/trailhead\/en-us6d78b6c30a15369764b69a90b3c0519e.png\" alt=\"An external vendor app publishes a platform event message for a merchandise return request. In Salesforce, a trigger subscribes to the event bus and receives the event.\" \/><\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"section\">\n<h3 id=\"Tdxn4tBK-heading8\" class=\"helpHead3\">\u5e73\u53f0\u5230\u5e73\u53f0\uff1a\u91cd\u65b0\u5206\u914d\u4e3b\u8981\u8bb0\u5f55<\/h3>\n<div class=\"p\">\n<p>\u5728Salesforce\u4e2d\u5206\u914d\u9500\u552e\u7ebf\u7d22\u65f6\uff0c\u9500\u552e\u7ebf\u7d22\u89e6\u53d1\u5668\u4f1a\u89e6\u53d1\u5e76\u68c0\u67e5\u4e0e\u9500\u552e\u7ebf\u7d22\u6240\u6709\u8005\u76f8\u5173\u7684\u672a\u51b3\u5546\u673a\u548c\u6848\u4f8b\u3002\u6839\u636e\u76f8\u5173\u8bb0\u5f55\uff0c\u89e6\u53d1\u5668\u53d1\u5e03\u7531Salesforce\u5e94\u7528\u7a0b\u5e8f\u63a5\u6536\u7684\u4e8b\u4ef6\u3002\u6839\u636e\u4e8b\u4ef6\u4fe1\u606f\uff0c\u5e94\u7528\u7a0b\u5e8f\u5c06\u91cd\u65b0\u5206\u914d\u6f5c\u5728\u5ba2\u6237\u5e76\u521b\u5efa\u4e00\u4e2aChatter\u5e16\u5b50\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6Salesforce\u529f\u80fd\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982Process Builder\u6216\u6d41\u7a0b\u3002\u4f46\u662f\u901a\u8fc7\u4f7f\u7528\u5e73\u53f0\u4e8b\u4ef6\uff0c\u60a8\u53ef\u4ee5\u4ece\u57fa\u4e8e\u4e8b\u4ef6\u7684\u7f16\u7a0b\u6a21\u578b\u548c\u8de8\u5e94\u7528\u7a0b\u5e8f\u7684\u6807\u51c6\u7f16\u7a0b\u65b9\u5f0f\u4e2d\u53d7\u76ca\u3002<\/p>\n<div class=\"imagecenter\"><span class=\"image image-block\"><img decoding=\"async\" class=\"image image-block\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/image\/upload\/doc\/trailhead\/en-us3dfb21e729301e826847e9b63246d8c4.png\" alt=\"In this diagram, an app in Salesforce publishes a platform event. A trigger subscribes to this event channel and receives the event.\" \/><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"platform_events_architecture_characteristics\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<h2 id=\"Tdxn4tBK-heading9\" class=\"helpHead2\"><span id=\"topic-title\" class=\"ph\">\u5e73\u53f0\u4e8b\u4ef6\u7279\u5f81<\/span><\/h2>\n<div class=\"body conbody\">\n<p>\u73b0\u5728\u60a8\u5df2\u7ecf\u4e86\u89e3\u4e86\u4f55\u65f6\u4f7f\u7528\u5e73\u53f0\u4e8b\u4ef6\uff0c\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u5176\u7ec4\u4ef6\u548c\u7279\u6027\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u5b9a\u4e49\u5e73\u53f0\u4e8b\u4ef6\u5305\u542b\u7684\u81ea\u5b9a\u4e49\u6570\u636e\u3002\u5c31\u50cf\u81ea\u5b9a\u4e49\u5bf9\u8c61\u4e00\u6837\uff0c\u60a8\u53ef\u4ee5\u5728Salesforce\u4e2d\u5b9a\u4e49\u5e73\u53f0\u4e8b\u4ef6\u3002\u901a\u8fc7\u7ed9\u5b83\u4e00\u4e2a\u540d\u79f0\u5e76\u6dfb\u52a0\u81ea\u5b9a\u4e49\u5b57\u6bb5\u6765\u521b\u5efa\u4e00\u4e2a\u5e73\u53f0\u4e8b\u4ef6\u5b9a\u4e49\u3002\u4ee5\u4e0b\u662f\u4e91\u65b0\u95fb\u793e\u65b0\u95fb\u4e8b\u4ef6\u7684\u81ea\u5b9a\u4e49\u5b57\u6bb5\u7684\u793a\u4f8b\u5b9a\u4e49\u3002<\/p>\n<div class=\"data colSort\">\n<table class=\"featureTable sort_table\" summary=\"\">\n<thead class=\"thead sorted\" align=\"left\">\n<tr>\n<th id=\"d491295e310\" class=\"featureTableHeader  \">\u5b57\u6bb5\u6807\u7b7e\/\u540d\u79f0<\/th>\n<th id=\"d491295e313\" class=\"featureTableHeader  \">\u5b57\u6bb5API\u540d\u79f0<\/th>\n<th id=\"d491295e316\" class=\"featureTableHeader  \">\u5b57\u6bb5\u7c7b\u578b<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"tbody\">\n<tr>\n<td class=\"entry\" headers=\"d491295e310\" data-title=\"Field Label\/Name\">Location<\/td>\n<td class=\"entry\" headers=\"d491295e313\" data-title=\"Field API Name\">Location__c<\/td>\n<td class=\"entry\" headers=\"d491295e316\" data-title=\"Field Type\">Text<\/p>\n<p class=\"p\">Length: 100<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"entry\" headers=\"d491295e310\" data-title=\"Field Label\/Name\">Urgent<\/td>\n<td class=\"entry\" headers=\"d491295e313\" data-title=\"Field API Name\">Urgent__c<\/td>\n<td class=\"entry\" headers=\"d491295e316\" data-title=\"Field Type\">Checkbox<\/td>\n<\/tr>\n<tr>\n<td class=\"entry\" headers=\"d491295e310\" data-title=\"Field Label\/Name\">News Content<\/td>\n<td class=\"entry\" headers=\"d491295e313\" data-title=\"Field API Name\">News_Content__c<\/td>\n<td class=\"entry\" headers=\"d491295e316\" data-title=\"Field Type\">Text Area (Long)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"section\">\n<h3 id=\"Tdxn4tBK-heading10\" class=\"helpHead3\">\u5e73\u53f0\u4e8b\u4ef6\u548csObjects<\/h3>\n<p>\u5e73\u53f0\u4e8b\u4ef6\u662f\u4e00\u79cd\u7279\u6b8a\u7684Salesforce\u5b9e\u4f53\uff0c\u5728\u5f88\u591a\u65b9\u9762\u4e0esObject\u7c7b\u4f3c\u3002\u4e8b\u4ef6\u6d88\u606f\u662f\u5e73\u53f0\u4e8b\u4ef6\u7684\u5b9e\u4f8b\uff0c\u7c7b\u4f3c\u4e8e\u8bb0\u5f55\u662f\u81ea\u5b9a\u4e49\u5bf9\u8c61\u7684\u5b9e\u4f8b\u3002\u4e0e\u81ea\u5b9a\u4e49\u5bf9\u8c61\u4e0d\u540c\uff0c\u60a8\u4e0d\u80fd\u66f4\u65b0\u6216\u5220\u9664\u4e8b\u4ef6\u8bb0\u5f55\uff0c\u4e5f\u4e0d\u80fd\u5728Salesforce\u7528\u6237\u754c\u9762\u4e2d\u67e5\u770b\u4e8b\u4ef6\u8bb0\u5f55\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u8bbe\u7f6e\u8bfb\u53d6\u548c\u521b\u5efa\u5e73\u53f0\u4e8b\u4ef6\u7684\u6743\u9650\u3002\u60a8\u5411\u914d\u7f6e\u6587\u4ef6\u6216\u6743\u9650\u96c6\u4e2d\u7684\u7528\u6237\u6388\u4e88\u6743\u9650\u3002<\/p>\n<\/div>\n<div class=\"section\">\n<h3 id=\"Tdxn4tBK-heading11\" class=\"helpHead3\">\u5728\u672c\u673a\u548c\u5916\u90e8\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u5e73\u53f0\u4e8b\u4ef6<\/h3>\n<p class=\"p\">\u5e73\u53f0\u4e8b\u4ef6\u652f\u6301Salesforce\u5185\u90e8\u548c\u5916\u90e8\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u4e8b\u4ef6\u6d88\u606f\u6d41\u3002 Salesforce\u5e73\u53f0\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528Apex\u65b9\u6cd5\u53d1\u5e03\u4e8b\u4ef6\uff0c\u5e76\u4f7f\u7528Apex\u89e6\u53d1\u5668\u6765\u6d88\u8d39\u4e8b\u4ef6\u3002\u6b64\u5916\uff0cVisualforce\u548cLightning\u7ec4\u4ef6\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u4f7f\u7528CometD\u8ba2\u9605\u4e8b\u4ef6\u3002\u4f5c\u4e3a\u4ee3\u7801\u7684\u66ff\u4ee3\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u58f0\u660e\u6027\u5de5\u5177\uff08\u5982Process Builder\u548cCloud Flow Designer\uff09\u53d1\u5e03\u4e8b\u4ef6\u3002\u6700\u540e\uff0c\u5916\u90e8\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528sObject API\u53d1\u5e03\u4e8b\u4ef6\uff0c\u5e76\u4f7f\u7528CometD\u5ba2\u6237\u7aef\u6d88\u8d39\u4e8b\u4ef6\u3002\u5982\u60a8\u6240\u89c1\uff0c\u5728\u9009\u62e9\u4f7f\u7528\u5e73\u53f0\u4e8b\u4ef6\u65b9\u9762\u6709\u5f88\u5927\u7684\u7075\u6d3b\u6027\uff01<\/p>\n<\/div>\n<div class=\"section\">\n<h3 id=\"Tdxn4tBK-heading12\" class=\"helpHead3\">\u5e73\u53f0\u4e8b\u4ef6\u548c\u5176\u4ed6\u6d41\u5f0f\u4e8b\u4ef6\u4e4b\u95f4\u7684\u5dee\u5f02<\/h3>\n<p 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class=\"screen-reader-text\">Apex-\u4e8b\u4ef6\u9a71\u52a8\uff081\uff09<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93],"tags":[],"class_list":["post-730","post","type-post","status-publish","format-standard","hentry","category-93"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Apex-\u4e8b\u4ef6\u9a71\u52a8\uff081\uff09 - \u767d\u767d\u968f\u7b14<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.ponybai.com\/?p=730\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Apex-\u4e8b\u4ef6\u9a71\u52a8\uff081\uff09 - 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