{"id":117,"date":"2025-07-29T16:05:03","date_gmt":"2025-07-29T08:05:03","guid":{"rendered":"https:\/\/lib.kimsor.top\/?p=117"},"modified":"2025-07-29T16:05:03","modified_gmt":"2025-07-29T08:05:03","slug":"springboot%e6%b7%bb%e5%8a%a0canal%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/lib.kimsor.top\/?p=117","title":{"rendered":"Springboot\u6dfb\u52a0Canal\u4f7f\u7528"},"content":{"rendered":"\n<p><strong>1\u3001\u67e5\u8be2\u6570\u636e\u5e93\u662f\u5426\u5f00\u542fbin\u65e5\u5fd7<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show VARIABLES like '%log_bin%'<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>2\u3001\u4fee\u6539mysql\u7684my.ini\u6587\u4ef6\u5f00\u542fbin\u65e5\u5fd7\u529f\u80fd<\/strong><\/p>\n\n\n\n<p>\u6dfb\u52a0\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;mysqld]\nlog-bin=mysql-bin\nbinlog-format=ROW\nserver_id=1<\/code><\/pre>\n\n\n\n<p>\u6dfb\u52a0\u5b8c\u6bd5\u540e\u91cd\u542fmysql\u670d\u52a1\uff0c\u518d\u901a\u8fc7\u7b2c\u4e00\u6761\u547d\u4ee4\u67e5\u770b\u662f\u5426\u6253\u5f00bin\u65e5\u5fd7\u529f\u80fd<\/p>\n\n\n\n<p><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6ce8\u610f\uff1a\u5982\u679c\u627e\u4e0d\u5230mysql\u7684\u76ee\u5f55\u53ef\u901a\u8fc7\u4ee5\u4e0bsql\u67e5\u8be2\u8def\u5f84<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show variables like '%basedir%'<\/code><\/pre>\n<\/blockquote>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>3\u3001\u4e0b\u8f7dCanal\u5e76\u89e3\u538b<\/strong><\/p>\n\n\n\n<p>Canal Github\u5730\u5740\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/github.com\/alibaba\/canal\">https:\/\/github.com\/alibaba\/canal<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u9009\u62e9\u4e0b\u8f7dtar.gz\u89e3\u538b\u5373\u53ef<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"551\" height=\"263\" src=\"https:\/\/lib.kimsor.top\/wp-content\/uploads\/2025\/05\/image.png\" alt=\"\" class=\"wp-image-126\" srcset=\"https:\/\/lib.kimsor.top\/wp-content\/uploads\/2025\/05\/image.png 551w, https:\/\/lib.kimsor.top\/wp-content\/uploads\/2025\/05\/image-300x143.png 300w\" sizes=\"auto, (max-width: 551px) 100vw, 551px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>4\u3001\u914d\u7f6eCanal\u53c2\u6570<\/strong><\/p>\n\n\n\n<p>\u89e3\u538b\u540eCanal\u5728<strong>conf\/example<\/strong>\u76ee\u5f55\u4e0b\u6709\u4e00\u4e2a<strong>instance.properties<\/strong>\u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u6211\u4eec\u4e3b\u8981\u914d\u7f6e\u7684\u4ee5\u4e0b\u57fa\u672c\u53c2\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u6539\u6210\u81ea\u5df1\u7684\u6570\u636e\u5e93\u4fe1\u606f\ncanal.instance.master.address = 127.0.0.1:3306 \ncanal.instance.dbUsername = canal  \ncanal.instance.dbPassword = canal<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>5\u3001\u542f\u52a8Canal<\/strong><\/p>\n\n\n\n<p>\u5728Canal\u7684\u5b89\u88c5\u76ee\u5f55\u4e0b\u7684<strong>bin<\/strong>\u76ee\u5f55\u4e2d\u542f\u52a8<strong>startup.bat<\/strong>\uff0c\u8fd9\u91cc\u6211\u7528\u7684\u662fwindows<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u542f\u52a8\u4e4b\u540e\u53bb\u67e5\u770b\u5b89\u88c5\u76ee\u5f55\u4e0b\u7684<strong>logs\/example\/example.log<\/strong>\u8fd9\u4e2alog\u6587\u4ef6<\/p>\n\n\n\n<p>\u51fa\u73b0success\u5373\u53ef<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<pre class=\"wp-block-code\"><code>2013-02-05 22:50:45.636 &#91;main] INFO  c.a.o.c.i.spring.support.PropertyPlaceholderConfigurer - Loading properties file from class path resource &#91;canal.properties]\n2013-02-05 22:50:45.641 &#91;main] INFO  c.a.o.c.i.spring.support.PropertyPlaceholderConfigurer - Loading properties file from class path resource &#91;example\/instance.properties]\n2013-02-05 22:50:45.803 &#91;main] INFO  c.a.otter.canal.instance.spring.CanalInstanceWithSpring - start CannalInstance for 1-example \n2013-02-05 22:50:45.810 &#91;main] INFO  c.a.otter.canal.instance.spring.CanalInstanceWithSpring - start successful....<\/code><\/pre>\n<\/blockquote>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>6\u3001Springboot\u5f15\u5165pom\u6587\u4ef6<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;dependency&gt;\n      &lt;groupId&gt;com.alibaba.otter&lt;\/groupId&gt;\n      &lt;artifactId&gt;canal.client&lt;\/artifactId&gt;\n      &lt;version&gt;1.1.0&lt;\/version&gt;\n    &lt;\/dependency&gt;<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>7\u3001\u6d4b\u8bd5Demo<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\nimport java.net.InetSocketAddress;\nimport java.util.List;\n\n\nimport com.alibaba.otter.canal.client.CanalConnectors;\nimport com.alibaba.otter.canal.client.CanalConnector;\nimport com.alibaba.otter.canal.common.utils.AddressUtils;\nimport com.alibaba.otter.canal.protocol.Message;\nimport com.alibaba.otter.canal.protocol.CanalEntry.Column;\nimport com.alibaba.otter.canal.protocol.CanalEntry.Entry;\nimport com.alibaba.otter.canal.protocol.CanalEntry.EntryType;\nimport com.alibaba.otter.canal.protocol.CanalEntry.EventType;\nimport com.alibaba.otter.canal.protocol.CanalEntry.RowChange;\nimport com.alibaba.otter.canal.protocol.CanalEntry.RowData;\n\n\npublic class SimpleCanalClientExample {\n\n\n    public static void main(String args&#91;]) {\n        \/\/ \u521b\u5efa\u94fe\u63a5\n        CanalConnector connector = CanalConnectors.newSingleConnector(new InetSocketAddress(AddressUtils.getHostIp(),\n                11111), \"example\", \"\", \"\");\n        int batchSize = 1000;\n        int emptyCount = 0;\n        try {\n            connector.connect();\n            connector.subscribe(\".*\\\\..*\");\n            connector.rollback();\n            int totalEmptyCount = 120;\n            while (emptyCount &lt; totalEmptyCount) {\n                Message message = connector.getWithoutAck(batchSize); \/\/ \u83b7\u53d6\u6307\u5b9a\u6570\u91cf\u7684\u6570\u636e\n                long batchId = message.getId();\n                int size = message.getEntries().size();\n                if (batchId == -1 || size == 0) {\n                    emptyCount++;\n                    System.out.println(\"empty count : \" + emptyCount);\n                    try {\n                        Thread.sleep(1000);\n                    } catch (InterruptedException e) {\n                    }\n                } else {\n                    emptyCount = 0;\n                    \/\/ System.out.printf(\"message&#91;batchId=%s,size=%s] \\n\", batchId, size);\n                    printEntry(message.getEntries());\n                }\n\n                connector.ack(batchId); \/\/ \u63d0\u4ea4\u786e\u8ba4\n                \/\/ connector.rollback(batchId); \/\/ \u5904\u7406\u5931\u8d25, \u56de\u6eda\u6570\u636e\n            }\n\n            System.out.println(\"empty too many times, exit\");\n        } finally {\n            connector.disconnect();\n        }\n    }\n\n    private static void printEntry(List&lt;Entry&gt; entrys) {\n        for (Entry entry : entrys) {\n            if (entry.getEntryType() == EntryType.TRANSACTIONBEGIN || entry.getEntryType() == EntryType.TRANSACTIONEND) {\n                continue;\n            }\n\n            RowChange rowChage = null;\n            try {\n                rowChage = RowChange.parseFrom(entry.getStoreValue());\n            } catch (Exception e) {\n                throw new RuntimeException(\"ERROR ## parser of eromanga-event has an error , data:\" + entry.toString(),\n                        e);\n            }\n\n            EventType eventType = rowChage.getEventType();\n            System.out.println(String.format(\"================&amp;gt; binlog&#91;%s:%s] , name&#91;%s,%s] , eventType : %s\",\n                    entry.getHeader().getLogfileName(), entry.getHeader().getLogfileOffset(),\n                    entry.getHeader().getSchemaName(), entry.getHeader().getTableName(),\n                    eventType));\n\n            for (RowData rowData : rowChage.getRowDatasList()) {\n                if (eventType == EventType.DELETE) {\n                    printColumn(rowData.getBeforeColumnsList());\n                } else if (eventType == EventType.INSERT) {\n                    printColumn(rowData.getAfterColumnsList());\n                } else {\n                    System.out.println(\"-------&amp;gt; before\");\n                    printColumn(rowData.getBeforeColumnsList());\n                    System.out.println(\"-------&amp;gt; after\");\n                    printColumn(rowData.getAfterColumnsList());\n                }\n            }\n        }\n    }\n\n    private static void printColumn(List&lt;Column&gt; columns) {\n        for (Column column : columns) {\n            System.out.println(column.getName() + \" : \" + column.getValue() + \"    update=\" + column.getUpdated());\n        }\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u67e5\u8be2\u6570\u636e\u5e93\u662f\u5426\u5f00\u542fbin\u65e5\u5fd7 2\u3001\u4fee\u6539mysql\u7684my.ini\u6587\u4ef6\u5f00\u542fbin\u65e5\u5fd7\u529f\u80fd \u6dfb\u52a0\u4ee5\u4e0b\u547d\u4ee4\uff1a \u6dfb\u52a0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,1,5,3],"tags":[],"class_list":["post-117","post","type-post","status-publish","format-standard","hentry","category-canal","category-mysql","category-5","category-database"],"_links":{"self":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts\/117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=117"}],"version-history":[{"count":13,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions"}],"predecessor-version":[{"id":299,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions\/299"}],"wp:attachment":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}