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\/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502   Gateway   \u2502  :9000  \u2014  \u7edf\u4e00\u5165\u53e3&#xff0c;\u6839\u636e\u8def\u5f84\u8f6c\u53d1<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n       \u2502<br \/>\n  \u250c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n  \u25bc    \u25bc        \u25bc        \u25bc<br \/>\nuser  product  order   stock<br \/>\n:8081  :8082   :8083   :8084<br \/>\n  \u2502     \u2502        \u2502       \u2502<br \/>\n  \u2514\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n             \u2502<br \/>\n        Nacos :8848  \u2014  \u670d\u52a1\u6ce8\u518c\u53d1\u73b0<br \/>\n             \u2502<br \/>\n        MySQL &#043; Redis  \u2014  \u6570\u636e\u5b58\u50a8&#xff08;\u5b66\u4e60\u9636\u6bb5\u5171\u4eab&#xff0c;\u751f\u4ea7\u72ec\u7acb&#xff09;<br \/>\n             \u2502<br \/>\n      RocketMQ :9876  \u2014  \u5f02\u6b65\u89e3\u8026&#xff08;\u79ef\u5206\/\u77ed\u4fe1\/\u63a8\u9001&#xff09;<\/p>\n<p>\u670d\u52a1\u95f4\u7684\u8c03\u7528\u5173\u7cfb\u975e\u5e38\u514b\u5236&#xff0c;\u53ea\u6709\u4e09\u6761&#xff1a;<\/p>\n<p>order-service \u2500\u2500Feign\u2500\u2500\u25b6 stock-service    <span class=\"token punctuation\">(<\/span>\u6263\u5e93\u5b58<span class=\"token punctuation\">)<\/span><br \/>\norder-service \u2500\u2500Feign\u2500\u2500\u25b6 product-service  <span class=\"token punctuation\">(<\/span>\u67e5\u5546\u54c1\u4fe1\u606f<span class=\"token punctuation\">)<\/span><br \/>\norder-service \u2500\u2500Feign\u2500\u2500\u25b6 product-service  <span class=\"token punctuation\">(<\/span>\u8d2d\u7269\u8f66\u6821\u9a8c<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u4e00\u6b21\u300c\u63d0\u4ea4\u8ba2\u5355\u300d\u8bf7\u6c42\u7684\u5b8c\u6574\u6570\u636e\u6d41&#xff0c;\u5efa\u8bae\u80cc\u4e0b\u6765&#xff0c;\u9762\u8bd5\u753b\u5f97\u51fa\u6765&#xff1a;<\/p>\n<p>Vue \u524d\u7aef<br \/>\n  \u2502  POST \/api\/order\/create  <span class=\"token punctuation\">(<\/span>\u5e26 JWT<span class=\"token punctuation\">)<\/span><br \/>\n  \u25bc<br \/>\nGateway :9000          \u2190 \u8def\u7531\u65ad\u8a00\u5339\u914d \/api\/order\/**&#xff0c;\u8f6c\u53d1\u5230 order-service<br \/>\n  \u2502<br \/>\n  \u25bc<br \/>\norder-service :8083<br \/>\n  \u251c\u2500 <span class=\"token number\">1<\/span>. LoginInterceptor \u6821\u9a8c JWT&#xff0c;\u89e3\u6790\u51fa userId \u653e\u8fdb\u4e0a\u4e0b\u6587<br \/>\n  \u251c\u2500 <span class=\"token number\">2<\/span>. \u4e0b\u5355\u8d23\u4efb\u94fe\u6821\u9a8c&#xff08;\u5546\u54c1\u662f\u5426\u4e0a\u67b6 \/ \u8d2d\u7269\u8f66\u5f52\u5c5e \/ \u6570\u91cf\u5408\u6cd5\u6027&#xff09;<br \/>\n  \u251c\u2500 <span class=\"token number\">3<\/span>. \u751f\u6210\u8ba2\u5355\u53f7&#xff08;\u96ea\u82b1\u7b97\u6cd5 &#043; \u57fa\u56e0\u6cd5&#xff09;<br \/>\n  \u251c\u2500 <span class=\"token number\">4<\/span>. Feign \u2192 stock-service :8084   \u6263\u5e93\u5b58&#xff08;\u4e0d\u5728\u672c\u5730\u4e8b\u52a1\u91cc&#xff01;&#xff09;<br \/>\n  \u2502        \u2514\u2500 \u539f\u5b50 UPDATE &#043; \u5e42\u7b49\u952e&#xff0c;\u89c1\u7b2c\u56db\u8282<br \/>\n  \u251c\u2500 <span class=\"token number\">5<\/span>. \u672c\u5730\u4e8b\u52a1&#xff1a;\u5199 t_order &#043; t_order_item &#043; t_event_record<span class=\"token punctuation\">(<\/span>WAIT<span class=\"token punctuation\">)<\/span><br \/>\n  \u251c\u2500 <span class=\"token number\">6<\/span>. \u672c\u5730\u4e8b\u52a1\u5931\u8d25 \u2192 compensateDeducts \u628a\u5df2\u6263\u7684\u6309\u5e42\u7b49\u952e\u8fd8\u56de\u53bb<br \/>\n  \u2514\u2500 <span class=\"token number\">7<\/span>. \u8fd4\u56de Result<span class=\"token operator\">&lt;<\/span>OrderVO<span class=\"token operator\">&gt;<\/span><br \/>\n  \u2502<br \/>\n  \u25bc <span class=\"token punctuation\">(<\/span>\u5f02\u6b65&#xff0c;\u7531 EventRetryScheduler \u6bcf 5s \u626b\u63cf\u8865\u53d1<span class=\"token punctuation\">)<\/span><br \/>\nRocketMQ :9876<br \/>\n  \u2502<br \/>\n  \u25bc<br \/>\nOrderEventConsumer \u2192 \u5199\u79ef\u5206 \/ \u77ed\u4fe1 \/ \u63a8\u9001 \u2192 t_message<\/p>\n<p>\u5355\u4f53\u7684\u5bf9\u6bd4\u5f88\u76f4\u89c2&#xff1a;<\/p>\n<table>\n<tr>\u7ef4\u5ea6\u5355\u4f53\u7248\u5fae\u670d\u52a1\u7248<\/tr>\n<tbody>\n<tr>\n<td>\u8fdb\u7a0b\u6570<\/td>\n<td>1<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u8c03\u7528\u65b9\u5f0f<\/td>\n<td>Java \u65b9\u6cd5\u8c03\u7528<\/td>\n<td>OpenFeign HTTP \u8c03\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u4e8b\u52a1<\/td>\n<td>\u5168\u7a0b &#064;Transactional<\/td>\n<td>\u5404\u670d\u52a1\u72ec\u7acb\u4e8b\u52a1<\/td>\n<\/tr>\n<tr>\n<td>\u6d88\u606f\u961f\u5217<\/td>\n<td>\u65e0<\/td>\n<td>RocketMQ \u5f02\u6b65\u5904\u7406\u79ef\u5206\/\u77ed\u4fe1\/\u63a8\u9001<\/td>\n<\/tr>\n<tr>\n<td>\u90e8\u7f72<\/td>\n<td>java -jar \u4e00\u6761\u547d\u4ee4<\/td>\n<td>\u6309\u9700\u72ec\u7acb\u90e8\u7f72<\/td>\n<\/tr>\n<tr>\n<td>\u6269\u5bb9<\/td>\n<td>\u6574\u4f53\u6269\u5bb9<\/td>\n<td>\u54ea\u91cc\u74f6\u9888\u6269\u54ea\u91cc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e0b\u9762\u662f\u300c\u63d0\u4ea4\u8ba2\u5355\u300d\u7684\u5b8c\u6574\u65f6\u5e8f\u56fe&#xff1a;<\/p>\n<p> \u6e32\u67d3\u9519\u8bef: Mermaid \u6e32\u67d3\u5931\u8d25: Parse error on line 23: &#8230;Result&lt;OrderVO&gt; Note over OS,M &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;^ Expecting &#039;()&#039;, &#039;SOLID_OPEN_ARROW&#039;, &#039;DOTTED_OPEN_ARROW&#039;, &#039;SOLID_ARROW&#039;, &#039;SOLID_ARROW_TOP&#039;, &#039;SOLID_ARROW_BOTTOM&#039;, &#039;STICK_ARROW_TOP&#039;, &#039;STICK_ARROW_BOTTOM&#039;, &#039;SOLID_ARROW_TOP_DOTTED&#039;, &#039;SOLID_ARROW_BOTTOM_DOTTED&#039;, &#039;STICK_ARROW_TOP_DOTTED&#039;, &#039;STICK_ARROW_BOTTOM_DOTTED&#039;, &#039;SOLID_ARROW_TOP_REVERSE&#039;, &#039;SOLID_ARROW_BOTTOM_REVERSE&#039;, &#039;STICK_ARROW_TOP_REVERSE&#039;, &#039;STICK_ARROW_BOTTOM_REVERSE&#039;, &#039;SOLID_ARROW_TOP_REVERSE_DOTTED&#039;, &#039;SOLID_ARROW_BOTTOM_REVERSE_DOTTED&#039;, &#039;STICK_ARROW_TOP_REVERSE_DOTTED&#039;, &#039;STICK_ARROW_BOTTOM_REVERSE_DOTTED&#039;, &#039;BIDIRECTIONAL_SOLID_ARROW&#039;, &#039;DOTTED_ARROW&#039;, &#039;BIDIRECTIONAL_DOTTED_ARROW&#039;, &#039;SOLID_CROSS&#039;, &#039;DOTTED_CROSS&#039;, &#039;SOLID_POINT&#039;, &#039;DOTTED_POINT&#039;, got &#039;NEWLINE&#039;<\/p>\n<p>\u4e0b\u9762\u662f\u5fae\u670d\u52a1\u67b6\u6784\u7684\u6574\u4f53\u62d3\u6251\u56fe&#xff1a;<\/p>\n<p>  #mermaid-svg-JC9bPKmpH5SmBtK6{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-JC9bPKmpH5SmBtK6 .error-icon{fill:#552222;}#mermaid-svg-JC9bPKmpH5SmBtK6 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-JC9bPKmpH5SmBtK6 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .marker.cross{stroke:#333333;}#mermaid-svg-JC9bPKmpH5SmBtK6 svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-JC9bPKmpH5SmBtK6 p{margin:0;}#mermaid-svg-JC9bPKmpH5SmBtK6 .label{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;color:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .cluster-label text{fill:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .cluster-label span{color:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .cluster-label span p{background-color:transparent;}#mermaid-svg-JC9bPKmpH5SmBtK6 .label text,#mermaid-svg-JC9bPKmpH5SmBtK6 span{fill:#333;color:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .node rect,#mermaid-svg-JC9bPKmpH5SmBtK6 .node circle,#mermaid-svg-JC9bPKmpH5SmBtK6 .node ellipse,#mermaid-svg-JC9bPKmpH5SmBtK6 .node polygon,#mermaid-svg-JC9bPKmpH5SmBtK6 .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .rough-node .label text,#mermaid-svg-JC9bPKmpH5SmBtK6 .node .label text,#mermaid-svg-JC9bPKmpH5SmBtK6 .image-shape .label,#mermaid-svg-JC9bPKmpH5SmBtK6 .icon-shape .label{text-anchor:middle;}#mermaid-svg-JC9bPKmpH5SmBtK6 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .rough-node .label,#mermaid-svg-JC9bPKmpH5SmBtK6 .node .label,#mermaid-svg-JC9bPKmpH5SmBtK6 .image-shape .label,#mermaid-svg-JC9bPKmpH5SmBtK6 .icon-shape .label{text-align:center;}#mermaid-svg-JC9bPKmpH5SmBtK6 .node.clickable{cursor:pointer;}#mermaid-svg-JC9bPKmpH5SmBtK6 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .arrowheadPath{fill:#333333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-JC9bPKmpH5SmBtK6 .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-JC9bPKmpH5SmBtK6 .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-JC9bPKmpH5SmBtK6 .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-JC9bPKmpH5SmBtK6 .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .cluster text{fill:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 .cluster span{color:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-JC9bPKmpH5SmBtK6 .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-JC9bPKmpH5SmBtK6 rect.text{fill:none;stroke-width:0;}#mermaid-svg-JC9bPKmpH5SmBtK6 .icon-shape,#mermaid-svg-JC9bPKmpH5SmBtK6 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-JC9bPKmpH5SmBtK6 .icon-shape p,#mermaid-svg-JC9bPKmpH5SmBtK6 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-JC9bPKmpH5SmBtK6 .icon-shape .label rect,#mermaid-svg-JC9bPKmpH5SmBtK6 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-JC9bPKmpH5SmBtK6 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-JC9bPKmpH5SmBtK6 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-JC9bPKmpH5SmBtK6 :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u57fa\u7840\u8bbe\u65bd<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u4e1a\u52a1\u670d\u52a1\u5c42<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u7f51\u5173\u5c42<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u5ba2\u6237\u7aef<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>POST \/api\/order\/create\u5e26 JWT<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\/api\/user\/**<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\/api\/product\/**<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\/api\/order\/**<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\/api\/stock\/**<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>Feign \u6263\u5e93\u5b58<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>Feign \u67e5\u5546\u54c1<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>Feign \u8d2d\u7269\u8f66\u6821\u9a8c<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u6ce8\u518c\/\u53d1\u73b0<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u6ce8\u518c\/\u53d1\u73b0<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u6ce8\u518c\/\u53d1\u73b0<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u6ce8\u518c\/\u53d1\u73b0<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u8bfb\u5199<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u8bfb\u5199<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u8bfb\u5199<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u8bfb\u5199<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u5f02\u6b65\u4e8b\u4ef6<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u6d4f\u89c8\u5668 \/ Postman<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Gateway :9000\u7edf\u4e00\u5165\u53e3&#xff0c;\u6309\u8def\u5f84\u8f6c\u53d1<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>user-service:8081<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>product-service:8082<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>order-service:8083<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>stock-service:8084<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Nacos :8848\u670d\u52a1\u6ce8\u518c\u53d1\u73b0<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>MySQL &#043; Redis\u6570\u636e\u5b58\u50a8<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>RocketMQ :9876\u5f02\u6b65\u89e3\u8026<\/p>\n<p><\/span><\/p>\n<h3>\u4e09\u3001\u4ee3\u7801\u5b9e\u73b0&#xff1a;\u8fdc\u7a0b\u8c03\u7528\u4e0e\u9274\u6743\u5206\u79bb<\/h3>\n<h4>3.1 \u58f0\u660e\u5f0f\u8fdc\u7a0b\u8c03\u7528&#xff1a;OpenFeign \u5ba2\u6237\u7aef<\/h4>\n<p>Feign \u7684\u4ef7\u503c\u662f\u628a HTTP \u8c03\u7528\u5199\u6210\u50cf\u672c\u5730\u65b9\u6cd5\u8c03\u7528\u2014\u2014\u5b83\u4e0d\u662f\u9b54\u6cd5&#xff0c;\u5e95\u5c42\u5c31\u662f\u300c\u67e5 Nacos \u62ff\u5b9e\u4f8b\u5730\u5740 \u2192 \u62fc HTTP \u8bf7\u6c42 \u2192 \u53d1\u51fa\u53bb \u2192 \u53cd\u5e8f\u5217\u5316\u54cd\u5e94\u300d&#xff0c;\u4f46\u628a\u8fd9\u4e00\u5768\u6837\u677f\u4ee3\u7801\u6536\u655b\u6210\u4e86\u4e00\u4e2a\u63a5\u53e3\u3002<\/p>\n<p><span class=\"token comment\">\/**<br \/>\n * \u5e93\u5b58\u670d\u52a1\u8fdc\u7a0b\u8c03\u7528\u5ba2\u6237\u7aef<br \/>\n * name \u5fc5\u987b\u4e0e stock-service \u5728 Nacos \u4e0a\u6ce8\u518c\u7684\u670d\u52a1\u540d\u4e00\u81f4<br \/>\n *\/<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;FeignClient<\/span><span class=\"token punctuation\">(<\/span>name <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;stock-service&#034;<\/span><span class=\"token punctuation\">,<\/span> configuration <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">FeignConfig<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">StockFeignClient<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/** \u6263\u51cf\u5e93\u5b58&#xff08;\u5e42\u7b49&#xff1a;\u540c\u4e00 orderNo &#043; productId \u91cd\u590d\u8c03\u7528\u4e0d\u4f1a\u53cc\u6263&#xff09; *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;PostMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/internal\/stock\/deduct&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token class-name\">Result<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">DeductResult<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">deduct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token annotation punctuation\">&#064;RequestBody<\/span> <span class=\"token class-name\">DeductRequest<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/** \u6062\u590d\u5e93\u5b58&#xff08;\u53d6\u6d88\u8ba2\u5355\u65f6\u7531\u8c03\u5ea6\u5668\u8865\u53d1\u8c03\u7528&#xff09; *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;PostMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/internal\/stock\/restore&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token class-name\">Result<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Void<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">restore<\/span><span class=\"token punctuation\">(<\/span><span class=\"token annotation punctuation\">&#064;RequestBody<\/span> <span class=\"token class-name\">RestoreRequest<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.2 \u670d\u52a1\u95f4\u9274\u6743&#xff1a;\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u590d\u7528\u7528\u6237 Token<\/h4>\n<p>\u8fd9\u662f\u62c6\u5fae\u670d\u52a1\u8e29\u7684\u7b2c\u4e00\u4e2a\u771f\u5751\u3002\u539f\u6765\u7684\u8bbe\u8ba1\u662f\u6240\u6709\u670d\u52a1\u7edf\u4e00\u7528\u7528\u6237 JWT \u9274\u6743&#xff0c;\u7ed3\u679c order \u2192 stock \u7684 Feign \u8c03\u7528\u76f4\u63a5\u8fd4\u56de 401\u2014\u2014\u56e0\u4e3a\u8fd9\u6bb5 HTTP \u8bf7\u6c42\u662f\u670d\u52a1\u81ea\u5df1\u53d1\u51fa\u53bb\u7684&#xff0c;\u8bf7\u6c42\u5934\u91cc\u6839\u672c\u6ca1\u6709\u7528\u6237\u7684 Token&#xff0c;stock \u7684 LoginInterceptor \u4e00\u770b\u6ca1\u51ed\u8bc1\u5c31\u62e6\u4e86\u3002<\/p>\n<p>\u9519\u8bef\u4fee\u6cd5\u662f\u300c\u628a\u5f53\u524d\u8bf7\u6c42\u7684 Token \u900f\u4f20\u4e0b\u53bb\u300d\u3002\u4f46\u8fd9\u6761\u8def\u8d8a\u8d70\u8d8a\u6b6a&#xff1a;\u540e\u53f0\u5b9a\u65f6\u4efb\u52a1&#xff08;EventRetryScheduler \u8865\u53d1\u5e93\u5b58\u6062\u590d&#xff09;\u53d1\u8d77\u8c03\u7528\u65f6\u6839\u672c\u6ca1\u6709\u7528\u6237\u4e0a\u4e0b\u6587&#xff0c;\u900f\u4f20\u4ec0\u4e48&#xff1f;<\/p>\n<p>\u6b63\u786e\u505a\u6cd5\u662f\u670d\u52a1\u51ed\u8bc1\u4e0e\u7528\u6237\u8eab\u4efd\u5206\u79bb&#xff1a;<\/p>\n<ul>\n<li>X-Internal-Key&#xff1a;\u670d\u52a1\u95f4\u51ed\u8bc1&#xff0c;\u8bc1\u660e\u300c\u8fd9\u662f\u4e00\u4e2a\u53ef\u4fe1\u7684\u5185\u90e8\u670d\u52a1\u300d&#xff0c;\u7528\u4e8e\u670d\u52a1\u95f4\u63a5\u53e3\u9274\u6743<\/li>\n<li>X-User-Id&#xff1a;\u4e1a\u52a1\u8eab\u4efd&#xff0c;\u6709\u7528\u6237\u4e0a\u4e0b\u6587\u65f6\u624d\u5e26&#xff08;\u6bd4\u5982\u4e0b\u5355\u65f6\u8981\u77e5\u9053\u7ed9\u8c01\u6263&#xff09;<\/li>\n<li>X-Trace-Id&#xff1a;\u94fe\u8def\u8ffd\u8e2a&#xff0c;\u8de8\u8fdb\u7a0b\u4e32\u8d77\u6574\u6761\u8c03\u7528\u94fe<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/**<br \/>\n * Feign \u7edf\u4e00\u914d\u7f6e&#xff1a;\u51fa\u7ad9\u8bf7\u6c42\u7684\u51ed\u8bc1\u4e0e\u8eab\u4efd\u6ce8\u5165<br \/>\n * \u5173\u952e\u70b9\u2014\u2014\u6240\u6709 order \u2192 \u5176\u4ed6\u670d\u52a1 \u7684\u8c03\u7528\u90fd\u4ece\u8fd9\u91cc\u7edf\u4e00\u51fa\u53e3&#xff0c;\u4e1a\u52a1\u4ee3\u7801\u96f6\u611f\u77e5<br \/>\n *\/<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">FeignConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Value<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;${internal.key}&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> internalKey<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u51fa\u7ad9\u62e6\u622a\u5668&#xff1a;\u7ed9\u6bcf\u4e2a Feign \u8bf7\u6c42\u8865\u4e0a\u670d\u52a1\u51ed\u8bc1 \/ \u7528\u6237\u8eab\u4efd \/ \u94fe\u8def ID<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">RequestInterceptor<\/span> <span class=\"token function\">internalAuthInterceptor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> template <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u2460 \u670d\u52a1\u51ed\u8bc1&#xff1a;\u8bc1\u660e&#034;\u6211\u662f\u53ef\u4fe1\u5185\u90e8\u670d\u52a1&#034;&#xff0c;\u4e0e\u7528\u6237\u662f\u5426\u767b\u5f55\u65e0\u5173<\/span><br \/>\n            template<span class=\"token punctuation\">.<\/span><span class=\"token function\">header<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;X-Internal-Key&#034;<\/span><span class=\"token punctuation\">,<\/span> internalKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u2461 \u7528\u6237\u8eab\u4efd&#xff1a;\u6709\u4e0a\u4e0b\u6587\u624d\u5e26\u3002\u5b9a\u65f6\u4efb\u52a1\/\u8865\u507f\u94fe\u8def\u6ca1\u6709\u7528\u6237&#xff0c;\u8fd9\u91cc\u662f null<\/span><br \/>\n            <span class=\"token class-name\">Long<\/span> userId <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">UserContext<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getUserId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>userId <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                template<span class=\"token punctuation\">.<\/span><span class=\"token function\">header<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;X-User-Id&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">valueOf<\/span><span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u2462 \u94fe\u8def\u8ffd\u8e2a&#xff1a;\u6ca1\u6709\u5c31\u65b0\u5efa&#xff0c;\u4fdd\u8bc1\u8de8\u8fdb\u7a0b\u53ef\u4e32<\/span><br \/>\n            template<span class=\"token punctuation\">.<\/span><span class=\"token function\">header<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;X-Trace-Id&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TraceContext<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getOrCreate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u8d85\u65f6\u91cd\u8bd5\u7b56\u7565&#xff1a;\u9996\u6b21\u95f4\u9694 100ms&#xff0c;\u6700\u5927\u95f4\u9694 1000ms&#xff0c;\u6700\u591a\u91cd\u8bd5 3 \u6b21<br \/>\n     * \u26a0\ufe0f \u91cd\u8bd5\u7684\u524d\u63d0\u662f\u4e0b\u6e38\u63a5\u53e3\u5e42\u7b49\u2014\u2014\u89c1\u7b2c\u56db\u8282<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Retryer<\/span> <span class=\"token function\">feignRetryer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Retryer<span class=\"token punctuation\">.<\/span>Default<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u670d\u52a1\u7aef stock-service \u7528 InternalKeyInterceptor \u6821\u9a8c\u8fdb\u6765\u7684\u662f\u4e0d\u662f\u5185\u90e8\u8c03\u7528&#xff1a;<\/p>\n<p><span class=\"token comment\">\/**<br \/>\n * \u670d\u52a1\u95f4\u51ed\u8bc1\u6821\u9a8c\u62e6\u622a\u5668&#xff08;\u6ce8\u518c\u5728 \/internal\/** \u8def\u5f84\u4e0a&#xff09;<br \/>\n *\/<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Slf4j<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">InternalKeyInterceptor<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">HandlerInterceptor<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> expectedKey<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">InternalKeyInterceptor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> expectedKey<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>expectedKey <span class=\"token operator\">&#061;<\/span> expectedKey<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">preHandle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span> handler<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> key <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;X-Internal-Key&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5e38\u91cf\u65f6\u95f4\u6bd4\u8f83&#xff0c;\u907f\u514d\u901a\u8fc7\u54cd\u5e94\u8017\u65f6\u9010\u5b57\u8282\u731c\u6d4b\u5bc6\u94a5<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>key <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span><span class=\"token class-name\">MessageDigest<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">isEqual<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                key<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBytes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">StandardCharsets<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">UTF_8<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                expectedKey<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBytes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">StandardCharsets<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">UTF_8<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">warn<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u975e\u6cd5\u5185\u90e8\u8c03\u7528&#xff0c;path&#061;{}, remoteAddr&#061;{}&#034;<\/span><span class=\"token punctuation\">,<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getRequestURI<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getRemoteAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpStatus<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">UNAUTHORIZED<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">value<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u6837\u505a\u7684\u597d\u5904&#xff1a;\u540e\u53f0\u5b9a\u65f6\u4efb\u52a1\u8865\u53d1\u5e93\u5b58\u6062\u590d\u65f6&#xff0c;\u4e0d\u9700\u8981\u4f2a\u88c5\u6210\u67d0\u4e2a\u7528\u6237&#xff0c;\u5e26\u670d\u52a1\u51ed\u8bc1\u5c31\u80fd\u8c03\u901a&#xff1b;\u800c\u7528\u6237\u8eab\u4efd\u53ea\u5728\u771f\u6b63\u9700\u8981\u65f6\u900f\u4f20&#xff0c;\u804c\u8d23\u5f7b\u5e95\u5206\u5f00\u3002<\/p>\n<h3>\u56db\u3001\u62c6\u5b8c\u4e4b\u540e\u300c\u5931\u53bb\u4e86\u4ec0\u4e48\u300d&#xff1a;\u672c\u5730\u4e8b\u52a1\u6ca1\u4e86<\/h3>\n<p>\u8fd9\u662f\u62c6\u5fae\u670d\u52a1\u6700\u8be5\u57cb\u5355\u7684\u5730\u65b9&#xff0c;\u4e5f\u662f\u9762\u8bd5\u6700\u5bb9\u6613\u88ab\u8ffd\u95ee\u7684\u70b9\u3002<\/p>\n<p>\u5355\u4f53\u7248\u6263\u5e93\u5b58\u548c\u5199\u8ba2\u5355\u5728\u540c\u4e00\u4e2a &#064;Transactional \u91cc&#xff0c;\u4e00\u4e2a\u56de\u6eda\u5168\u56de\u6eda\u3002\u62c6\u5f00\u4e4b\u540e&#xff0c;&#064;Transactional \u7ba1\u4e0d\u5230\u8fdc\u7a0b\u8c03\u7528\u2014\u2014order \u7684\u4e8b\u52a1\u56de\u6eda\u4e86&#xff0c;stock \u90a3\u8fb9\u5df2\u7ecf\u6263\u6389\u7684\u5e93\u5b58\u4e0d\u4f1a\u81ea\u52a8\u8fd8\u56de\u6765\u3002<\/p>\n<p>\u9879\u76ee\u7528\u56db\u62db\u628a\u8fd9\u4e2a\u95ee\u9898\u89e3\u6389&#xff08;\u90fd\u6709\u6d4b\u8bd5\u8986\u76d6&#xff09;&#xff1a;<\/p>\n<h4>4.1 \u9632\u8d85\u5356&#xff1a;\u539f\u5b50 UPDATE&#xff0c;\u4e0d\u7528\u5206\u5e03\u5f0f\u9501<\/h4>\n<p><span class=\"token comment\">&lt;!&#8211; \u4e00\u6b65\u5230\u4f4d&#xff1a;\u6570\u636e\u5e93\u884c\u9501\u5929\u7136\u4e32\u884c\u5316\u540c\u4e00\u5546\u54c1\u7684\u5e76\u53d1\u6263\u51cf &#8211;&gt;<\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>update<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>deductStock<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    UPDATE t_product<br \/>\n    SET stock &#061; stock &#8211; #{quantity}, update_time &#061; NOW()<br \/>\n    WHERE id &#061; #{productId} AND stock &gt;&#061; #{quantity}<br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>update<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>\u5f71\u54cd\u884c\u6570 &#061; 0 \u5c31\u4ee3\u8868\u5e93\u5b58\u4e0d\u8db3&#xff0c;\u76f4\u63a5\u629b\u4e1a\u52a1\u5f02\u5e38\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u4e0d\u7528 Redisson \u5206\u5e03\u5f0f\u9501\u5f53\u95f8\u95e8&#xff1f; \u4e24\u4e2a\u539f\u56e0&#xff1a;<\/p>\n<li>\u9501\u6321\u4e0d\u4f4f\u8d85\u5356\u3002\u52a0\u4e86\u9501\u4e4b\u540e\u5982\u679c\u8fd8\u662f SELECT \u518d UPDATE&#xff0c;\u4e24\u4e2a\u7ebf\u7a0b\u7167\u6837\u80fd\u8bfb\u5230\u540c\u4e00\u4e2a\u5e93\u5b58\u503c&#xff0c;\u7ade\u6001\u4f9d\u65e7\u5b58\u5728\u2014\u2014\u9501\u53ea\u662f\u7f29\u5c0f\u4e86\u7a97\u53e3&#xff0c;\u6ca1\u6d88\u9664\u7ade\u6001\u3002<\/li>\n<li>\u9501\u91ca\u653e\u4e0e\u4e8b\u52a1\u63d0\u4ea4\u4e0d\u540c\u6b65\u3002A \u7ebf\u7a0b\u91ca\u653e\u9501\u7684\u77ac\u95f4\u4e8b\u52a1\u53ef\u80fd\u8fd8\u6ca1\u63d0\u4ea4&#xff0c;B \u7ebf\u7a0b\u62ff\u5230\u9501\u8bfb\u5230\u7684\u8fd8\u662f\u65e7\u5e93\u5b58&#xff0c;\u5f62\u6210&#034;\u9501\u5df2\u91ca\u653e\u3001\u4e8b\u52a1\u672a\u63d0\u4ea4&#034;\u7684\u7a7a\u7a97\u3002<\/li>\n<p>\u539f\u5b50 UPDATE \u9760\u6570\u636e\u5e93\u884c\u9501\u5929\u7136\u4e32\u884c\u5316&#xff0c;\u4e00\u6b65\u5230\u4f4d&#xff0c;\u8fd9\u4e5f\u662f order-service Feign \u91cd\u8bd5 3 \u6b21\u4e4b\u540e\u4ecd\u7136\u4e0d\u8d85\u5356\u7684\u6839\u56e0\u3002<\/p>\n<h4>4.2 \u5e42\u7b49\u952e&#xff1a;t_stock_operation \u552f\u4e00\u952e<\/h4>\n<p>\u91cd\u8bd5\u80fd\u4fdd\u8bc1\u4e0d\u8d85\u5356&#xff0c;\u4f46\u4e0d\u80fd\u4fdd\u8bc1\u4e0d\u91cd\u590d\u6263\u3002\u6240\u4ee5\u6bcf\u6b21\u6263\u51cf\/\u6062\u590d\u90fd\u8981\u5148\u62a2\u5e42\u7b49\u952e&#xff1a;<\/p>\n<p><span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>rollbackFor <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Exception<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">DeductResult<\/span> <span class=\"token function\">deduct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DeductCommand<\/span> cmd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u2460 \u62a2\u5360\u5e42\u7b49\u952e (order_no, product_id, operation) \u552f\u4e00\u7d22\u5f15<\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        stockOperationMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insertClaim<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                cmd<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOrderNo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> cmd<span class=\"token punctuation\">.<\/span><span class=\"token function\">getProductId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Operation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">DEDUCT<\/span><span class=\"token punctuation\">,<\/span> cmd<span class=\"token punctuation\">.<\/span><span class=\"token function\">getQuantity<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DuplicateKeyException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u2461 \u649e\u552f\u4e00\u952e &#061; \u8fd9\u4e2a\u4e1a\u52a1\u64cd\u4f5c\u5df2\u7ecf\u5904\u7406\u8fc7 \u2014\u2014 \u56de\u653e&#xff0c;\u7edd\u4e0d\u518d\u6263\u4e00\u6b21<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token function\">replay<\/span><span class=\"token punctuation\">(<\/span>cmd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u2462 \u9996\u6b21\u6267\u884c&#xff1a;\u539f\u5b50\u6263\u51cf<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> affected <span class=\"token operator\">&#061;<\/span> productMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">deductStock<\/span><span class=\"token punctuation\">(<\/span>cmd<span class=\"token punctuation\">.<\/span><span class=\"token function\">getProductId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> cmd<span class=\"token punctuation\">.<\/span><span class=\"token function\">getQuantity<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>affected <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BizException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">ErrorCode<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">STOCK_NOT_ENOUGH<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">DeductResult<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">of<\/span><span class=\"token punctuation\">(<\/span>cmd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u56de\u653e\u65f6\u8fd8\u4f1a\u6bd4\u5bf9\u5df2\u8bb0\u5f55\u7684\u6570\u91cf&#xff1a;\u540c\u4e00\u4e2a\u5e42\u7b49\u952e\u5374\u4f20\u4e86\u4e0d\u540c\u7684 quantity&#xff0c;\u660e\u786e\u62a5\u300c\u53c2\u6570\u51b2\u7a81\u300d(400)\u2014\u2014\u9632\u6b62\u6709\u4eba\u62ff\u540c\u4e00\u4e2a\u4e1a\u52a1\u952e\u5077\u6539\u6570\u91cf\u3002<\/p>\n<p>\u8865\u5145\u4e00\u4e2a\u5b9e\u6d4b\u7ed3\u8bba&#xff1a;DuplicateKeyException \u5728\u5355\u4e2a &#064;Transactional \u65b9\u6cd5\u5185\u90e8\u88ab catch \u65f6&#xff0c;\u4e0d\u4f1a\u89e6\u53d1 UnexpectedRollbackException\u2014\u2014\u5f02\u5e38\u6ca1\u6709\u7a7f\u8fc7\u4e8b\u52a1\u62e6\u622a\u5668\u8fb9\u754c&#xff0c;\u4e8b\u52a1\u7167\u5e38\u63d0\u4ea4\u3002UnexpectedRollbackException \u53ea\u51fa\u73b0\u5728&#034;\u5185\u5c42 &#064;Transactional(REQUIRED) \u629b\u5f02\u5e38\u88ab\u5916\u5c42 catch&#034;\u6216 JPA\/Hibernate \u573a\u666f\u3002\u8fd9\u6761\u7ed3\u8bba\u7531 5 \u4e2a Testcontainers \u771f MySQL \u96c6\u6210\u6d4b\u8bd5\u9501\u5b9a&#xff0c;mvn -P it test \u53ef\u590d\u8dd1\u3002<\/p>\n<h4>4.3 \u8fdc\u7a0b\u64cd\u4f5c\u4e0e\u672c\u5730\u4e8b\u52a1\u89e3\u8026<\/h4>\n<ul>\n<li>\u4e0b\u5355&#xff1a;\u5148\u751f\u6210\u8ba2\u5355\u53f7\u5f53\u5e42\u7b49\u952e&#xff0c;\u9010\u5546\u54c1\u8fdc\u7a0b\u6263\u51cf&#xff08;\u4e0d\u5728\u672c\u5730\u4e8b\u52a1\u91cc&#xff09;\u3002\u672c\u5730\u843d\u5e93\u5931\u8d25\u65f6&#xff0c;\u628a&#034;\u5df2\u6210\u529f\u6263\u51cf\u7684\u9879&#034;\u6309\u5e42\u7b49\u952e\u8865\u507f\u8fd8\u56de\u53bb&#xff08;compensateDeducts&#xff09;\u3002<\/li>\n<li>\u53d6\u6d88&#xff1a;\u62a2\u5230\u53d6\u6d88\u6743\u540e\u4e0d\u540c\u6b65\u8fdc\u7a0b\u8fd8\u5e93\u5b58\u2014\u2014\u8fdc\u7a0b\u8d85\u65f6\u4f1a\u5361\u4f4f\u672c\u5730\u4e8b\u52a1&#xff0c;\u56de\u6eda\u8fd8\u4f1a\u628a&#034;\u5df2\u53d6\u6d88&#034;\u72b6\u6001\u4e00\u8d77\u64a4\u6389\u3002\u6b63\u786e\u505a\u6cd5\u662f\u5199\u4e00\u6761 STOCK_RESTORE \u7684 Outbox \u4e8b\u4ef6&#xff0c;\u4e0e\u53d6\u6d88\u64cd\u4f5c\u540c\u4e8b\u52a1\u843d\u5e93&#xff0c;\u4ea4\u7ed9 EventRetryScheduler \u72ec\u7acb\u8865\u53d1\u3002<\/li>\n<\/ul>\n<p>OrderService.cancel<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      \u2502<br \/>\n      \u251c\u2500\u2500 <span class=\"token number\">1<\/span>. \u6761\u4ef6\u62a2\u5360\u53d6\u6d88\u6743&#xff08;\u5f71\u54cd\u884c\u6570\u95f8\u95e8&#xff09;<br \/>\n      \u251c\u2500\u2500 <span class=\"token number\">2<\/span>. \u540c\u4e8b\u52a1\u5199 t_event_record<span class=\"token punctuation\">(<\/span>STOCK_RESTORE, WAIT<span class=\"token punctuation\">)<\/span><br \/>\n      \u2514\u2500\u2500 <span class=\"token number\">3<\/span>. \u8fd4\u56de\u6210\u529f \u2014\u2014 \u4e0d\u7b49\u5f85\u8fdc\u7a0b\u5e93\u5b58\u6062\u590d<\/p>\n<p>EventRetryScheduler&#xff08;\u6bcf 5s&#xff09;<br \/>\n      \u2514\u2500\u2500 \u6761\u4ef6\u62a2\u5360 WAIT \u2192 SENDING&#xff08;\u5f71\u54cd\u884c\u6570<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span> \u8bf4\u660e\u88ab\u522b\u7684\u5b9e\u4f8b\u62a2\u8d70&#xff0c;\u8df3\u8fc7&#xff09;<br \/>\n            \u2514\u2500\u2500 \u62a2\u5360\u6210\u529f\u624d\u53d1 MQ \/ \u8c03 Feign \u2192 \u6210\u529f\u6807 SUCCESS \/ \u5931\u8d25\u9000\u907f\u91cd\u8bd5 \u2192 \u8d85\u9650\u6807 FAIL<\/p>\n<p>Feign \u914d\u4e86 Retryer.Default(100, 1000, 3)&#xff0c;\u914d\u5408\u5e42\u7b49\u952e&#xff0c;\u91cd\u8bd5\u5c31\u4ece&#034;\u53ef\u80fd\u91cd\u590d\u6263&#034;\u53d8\u6210\u4e86&#034;\u65e0\u5bb3\u56de\u653e&#034;\u3002<\/p>\n<h4>4.4 \u4e0b\u5355\u5e42\u7b49&#xff1a;clientRequestId<\/h4>\n<p>\u7f51\u7edc\u6296\u52a8\u5bfc\u81f4\u5ba2\u6237\u7aef\u91cd\u8bd5&#xff0c;\u7528\u6237\u4f1a\u770b\u5230\u4e24\u4e2a\u8ba2\u5355\u3002t_order \u52a0 uk_client_request_id \u552f\u4e00\u7d22\u5f15&#xff08;MySQL \u5141\u8bb8\u591a\u4e2a NULL&#xff0c;\u65e7\u5ba2\u6237\u7aef\u4e0d\u5e26\u952e\u4e0d\u53d7\u5f71\u54cd&#xff09;&#xff1a;\u540c\u4e00\u952e\u53ea\u843d\u4e00\u4e2a\u8ba2\u5355\u3002\u8bf7\u6c42\u5148\u9884\u68c0\u67e5\u56de\u653e\u5df2\u6709\u8ba2\u5355&#xff08;\u5e76\u6821\u9a8c\u5f52\u5c5e&#xff0c;\u9632\u62ff\u522b\u4eba\u7684\u952e\u56de\u653e\u522b\u4eba\u7684\u5355&#xff09;&#xff1b;\u5e76\u53d1\u7ade\u6001\u4e0b\u4e24\u4e2a\u540c\u952e\u8bf7\u6c42\u90fd\u8d8a\u8fc7\u9884\u68c0\u67e5&#xff0c;\u5404\u81ea\u8fdc\u7a0b\u6263\u5e93\u5b58&#xff0c;\u4e00\u4e2a insert \u547d\u4e2d\u552f\u4e00\u952e&#xff0c;\u53e6\u4e00\u4e2a\u649e DuplicateKeyException \u8d70\u8865\u507f\u8fd8\u5e93\u5b58\u3002\u552f\u4e00\u952e\u662f\u6700\u7ec8\u95f8\u95e8&#xff0c;\u9884\u68c0\u67e5\u6321\u6389\u5e38\u89c1\u91cd\u590d\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u62c6\u5fae\u670d\u52a1\u540e\u300c\u672c\u5730\u4e8b\u52a1\u4e22\u5931\u300d\u7684\u89e3\u51b3\u65b9\u6848\u5168\u666f\u56fe&#xff1a;<\/p>\n<p>  #mermaid-svg-C2U8ah0fQCW644ak{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-C2U8ah0fQCW644ak .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-C2U8ah0fQCW644ak .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-C2U8ah0fQCW644ak .error-icon{fill:#552222;}#mermaid-svg-C2U8ah0fQCW644ak .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-C2U8ah0fQCW644ak .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-C2U8ah0fQCW644ak .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-C2U8ah0fQCW644ak .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-C2U8ah0fQCW644ak .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-C2U8ah0fQCW644ak .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-C2U8ah0fQCW644ak .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-C2U8ah0fQCW644ak .marker{fill:#333333;stroke:#333333;}#mermaid-svg-C2U8ah0fQCW644ak .marker.cross{stroke:#333333;}#mermaid-svg-C2U8ah0fQCW644ak svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-C2U8ah0fQCW644ak p{margin:0;}#mermaid-svg-C2U8ah0fQCW644ak .label{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;color:#333;}#mermaid-svg-C2U8ah0fQCW644ak .cluster-label text{fill:#333;}#mermaid-svg-C2U8ah0fQCW644ak .cluster-label span{color:#333;}#mermaid-svg-C2U8ah0fQCW644ak .cluster-label span p{background-color:transparent;}#mermaid-svg-C2U8ah0fQCW644ak .label text,#mermaid-svg-C2U8ah0fQCW644ak span{fill:#333;color:#333;}#mermaid-svg-C2U8ah0fQCW644ak .node rect,#mermaid-svg-C2U8ah0fQCW644ak .node circle,#mermaid-svg-C2U8ah0fQCW644ak .node ellipse,#mermaid-svg-C2U8ah0fQCW644ak .node polygon,#mermaid-svg-C2U8ah0fQCW644ak .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-C2U8ah0fQCW644ak .rough-node .label text,#mermaid-svg-C2U8ah0fQCW644ak .node .label text,#mermaid-svg-C2U8ah0fQCW644ak .image-shape .label,#mermaid-svg-C2U8ah0fQCW644ak .icon-shape .label{text-anchor:middle;}#mermaid-svg-C2U8ah0fQCW644ak .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-C2U8ah0fQCW644ak .rough-node .label,#mermaid-svg-C2U8ah0fQCW644ak .node .label,#mermaid-svg-C2U8ah0fQCW644ak .image-shape .label,#mermaid-svg-C2U8ah0fQCW644ak .icon-shape .label{text-align:center;}#mermaid-svg-C2U8ah0fQCW644ak .node.clickable{cursor:pointer;}#mermaid-svg-C2U8ah0fQCW644ak .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-C2U8ah0fQCW644ak .arrowheadPath{fill:#333333;}#mermaid-svg-C2U8ah0fQCW644ak .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-C2U8ah0fQCW644ak .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-C2U8ah0fQCW644ak .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-C2U8ah0fQCW644ak .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-C2U8ah0fQCW644ak .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-C2U8ah0fQCW644ak .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-C2U8ah0fQCW644ak .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-C2U8ah0fQCW644ak .cluster text{fill:#333;}#mermaid-svg-C2U8ah0fQCW644ak .cluster span{color:#333;}#mermaid-svg-C2U8ah0fQCW644ak div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-C2U8ah0fQCW644ak .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-C2U8ah0fQCW644ak rect.text{fill:none;stroke-width:0;}#mermaid-svg-C2U8ah0fQCW644ak .icon-shape,#mermaid-svg-C2U8ah0fQCW644ak .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-C2U8ah0fQCW644ak .icon-shape p,#mermaid-svg-C2U8ah0fQCW644ak .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-C2U8ah0fQCW644ak .icon-shape .label rect,#mermaid-svg-C2U8ah0fQCW644ak .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-C2U8ah0fQCW644ak .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-C2U8ah0fQCW644ak .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-C2U8ah0fQCW644ak :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u62c6\u5fae\u670d\u52a1\u540e\u672c\u5730\u4e8b\u52a1\u5931\u6548<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u56db\u62db\u89e3\u51b3<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>4.1 \u9632\u8d85\u5356\u539f\u5b50 UPDATE<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>4.2 \u5e42\u7b49\u952et_stock_operation \u552f\u4e00\u952e<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>4.3 \u8fdc\u7a0b\u64cd\u4f5c\u4e0e\u672c\u5730\u4e8b\u52a1\u89e3\u8026<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>4.4 \u4e0b\u5355\u5e42\u7b49clientRequestId<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u6570\u636e\u5e93\u884c\u9501\u5929\u7136\u4e32\u884c\u5316<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u5f71\u54cd\u884c\u6570&#061;0\u629b\u5e93\u5b58\u4e0d\u8db3<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u649e\u552f\u4e00\u952e&#061;\u56de\u653e\u7edd\u4e0d\u53cc\u6263<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u540c\u952e\u4e0d\u540c\u6570\u91cf\u62a5\u53c2\u6570\u51b2\u7a81 400<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u4e0b\u5355&#xff1a;\u5148\u6263\u540e\u5199\u5931\u8d25\u8865\u507f\u8fd8\u5e93\u5b58<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u53d6\u6d88&#xff1a;\u5199 Outbox \u4e8b\u4ef6\u4e0d\u540c\u6b65\u8fdc\u7a0b\u8c03<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>t_order \u552f\u4e00\u7d22\u5f15uk_client_request_id<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u552f\u4e00\u952e\u662f\u6700\u7ec8\u95f8\u95e8\u9884\u68c0\u67e5\u6321\u5e38\u89c1\u91cd\u590d<\/p>\n<p><\/span><\/p>\n<h3>\u4e94\u3001\u4e0d\u62a5\u9519\u7684\u5751\u6700\u8981\u547d<\/h3>\n<p>\u62c6\u5fae\u670d\u52a1\u7684\u5751\u91cc&#xff0c;\u6700\u8017\u65f6\u7684\u4e0d\u662f\u62a5\u9519\u7684&#xff0c;\u800c\u662f\u4e0d\u62a5\u9519\u4f46\u9759\u9ed8\u5931\u6548\u7684&#xff1a;<\/p>\n<table>\n<tr>\u95ee\u9898\u539f\u56e0\u89e3\u51b3<\/tr>\n<tbody>\n<tr>\n<td>Feign \u8c03\u7528\u8fd4\u56de 401<\/td>\n<td>order\u2192stock \u7684 HTTP \u8bf7\u6c42\u6ca1\u5e26\u51ed\u8bc1&#xff0c;\u88ab stock \u62e6\u622a\u5668\u62e6\u622a<\/td>\n<td>\u670d\u52a1\u95f4\u6539\u7528 X-Internal-Key \u670d\u52a1\u51ed\u8bc1\u9274\u6743&#xff0c;\u4e0d\u518d\u4f9d\u8d56\u7528\u6237 Token<\/td>\n<\/tr>\n<tr>\n<td>\u516c\u5171\u6a21\u5757 Bean \u542f\u52a8\u62a5\u9519<\/td>\n<td>LoginInterceptor \u6784\u9020\u51fd\u6570\u5f3a\u5236\u9700\u8981 RedisTemplate&#xff0c;\u800c stock-service \u6ca1\u5f15\u5165 Redis<\/td>\n<td>&#064;Autowired(required &#061; false) \u8ba9\u4f9d\u8d56\u53ef\u9009<\/td>\n<\/tr>\n<tr>\n<td>\u5b50\u6a21\u5757\u542f\u52a8\u627e\u4e0d\u5230\u4e3b\u7c7b<\/td>\n<td>\u7236 POM \u7684 spring-boot-maven-plugin \u5e72\u6270<\/td>\n<td>\u7236 POM \u6539\u4e3a pluginManagement&#xff0c;\u5b50\u6a21\u5757\u5404\u81ea\u58f0\u660e<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u4ece\u590d\u5236\u9759\u9ed8\u5931\u6548&#xff0c;\u4ece\u5e93\u67e5\u4e0d\u5230\u6570\u636e<\/td>\n<td>\u53ea\u914d\u4e86 server-id\/log-bin \u7b49\u9759\u6001\u53c2\u6570&#xff0c;\u6ca1\u6267\u884c CHANGE MASTER \u5efa\u7acb\u8fde\u63a5&#xff0c;\u800c\u4e14\u5b8c\u5168\u4e0d\u62a5\u9519<\/td>\n<td>\u8865 init-replication.sh&#xff1a;\u5efa\u590d\u5236\u8d26\u53f7 &#043; CHANGE MASTER\/START SLAVE&#xff0c;\u5e76\u7aef\u5230\u7aef\u9a8c\u8bc1&#xff08;\u4e3b\u5e93\u5199\u2192\u4ece\u5e93\u67e5&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>docker-compose up \u62a5\u7aef\u53e3\u5360\u7528<\/td>\n<td>\u672c\u673a MySQL80 \u670d\u52a1\u5f00\u673a\u81ea\u542f\u5360\u7740 3306<\/td>\n<td>\u505c\u672c\u673a\u670d\u52a1 &#043; \u6539\u624b\u52a8\u542f\u52a8\u3002\u6ce8\u610f PowerShell \u91cc sc \u662f Set-Content \u522b\u540d&#xff0c;\u5fc5\u987b\u5199 sc.exe<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7b2c 4 \u6761\u7279\u522b\u503c\u5f97\u8bf4&#xff1a;docker-compose \u53ea\u8d1f\u8d23\u628a\u4e24\u4e2a MySQL \u8d77\u8d77\u6765\u3001\u5404\u81ea\u914d\u597d\u53c2\u6570&#xff0c;\u4f46&#034;\u4ece\u5e93\u8fde\u4e3b\u5e93&#034;\u662f\u8fd0\u884c\u65f6\u52a8\u4f5c&#xff0c;\u4e0d\u4f1a\u81ea\u52a8\u5b8c\u6210\u3002\u8fd9\u7c7b&#034;\u914d\u7f6e\u5199\u4e86\u3001\u8fdb\u7a0b\u8d77\u4e86\u3001\u65e5\u5fd7\u5e72\u51c0\u3001\u529f\u80fd\u4e0d\u901a&#034;\u7684\u95ee\u9898&#xff0c;\u53ea\u80fd\u9760\u7aef\u5230\u7aef\u9a8c\u8bc1\u66b4\u9732\u2014\u2014\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u6211\u575a\u6301\u6bcf\u4e2a\u6539\u52a8\u90fd\u8981\u6709\u53ef\u590d\u8dd1\u7684\u9a8c\u8bc1\u811a\u672c\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u300c\u4e0d\u62a5\u9519\u7684\u5751\u300d\u7684\u6392\u67e5\u51b3\u7b56\u56fe&#xff1a;<\/p>\n<p>  #mermaid-svg-2RLLVXaEP9aV4mnN{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-2RLLVXaEP9aV4mnN 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text,#mermaid-svg-2RLLVXaEP9aV4mnN .image-shape .label,#mermaid-svg-2RLLVXaEP9aV4mnN .icon-shape .label{text-anchor:middle;}#mermaid-svg-2RLLVXaEP9aV4mnN .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-2RLLVXaEP9aV4mnN .rough-node .label,#mermaid-svg-2RLLVXaEP9aV4mnN .node .label,#mermaid-svg-2RLLVXaEP9aV4mnN .image-shape .label,#mermaid-svg-2RLLVXaEP9aV4mnN .icon-shape .label{text-align:center;}#mermaid-svg-2RLLVXaEP9aV4mnN .node.clickable{cursor:pointer;}#mermaid-svg-2RLLVXaEP9aV4mnN .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-2RLLVXaEP9aV4mnN .arrowheadPath{fill:#333333;}#mermaid-svg-2RLLVXaEP9aV4mnN .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-2RLLVXaEP9aV4mnN .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-2RLLVXaEP9aV4mnN .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-2RLLVXaEP9aV4mnN .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-2RLLVXaEP9aV4mnN .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-2RLLVXaEP9aV4mnN .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-2RLLVXaEP9aV4mnN .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-2RLLVXaEP9aV4mnN .cluster text{fill:#333;}#mermaid-svg-2RLLVXaEP9aV4mnN .cluster span{color:#333;}#mermaid-svg-2RLLVXaEP9aV4mnN div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-2RLLVXaEP9aV4mnN .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-2RLLVXaEP9aV4mnN rect.text{fill:none;stroke-width:0;}#mermaid-svg-2RLLVXaEP9aV4mnN .icon-shape,#mermaid-svg-2RLLVXaEP9aV4mnN .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-2RLLVXaEP9aV4mnN .icon-shape p,#mermaid-svg-2RLLVXaEP9aV4mnN .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-2RLLVXaEP9aV4mnN .icon-shape .label rect,#mermaid-svg-2RLLVXaEP9aV4mnN .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-2RLLVXaEP9aV4mnN .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-2RLLVXaEP9aV4mnN .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-2RLLVXaEP9aV4mnN :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u9759\u9ed8\u5931\u6548\u95ee\u9898<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Feign 401<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u516c\u5171\u6a21\u5757 Bean \u542f\u52a8\u62a5\u9519<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u5b50\u6a21\u5757\u627e\u4e0d\u5230\u4e3b\u7c7b<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u4e3b\u4ece\u590d\u5236\u9759\u9ed8\u5931\u6548<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u7aef\u53e3\u5360\u7528<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u539f\u56e0&#xff1a;HTTP \u8bf7\u6c42\u6ca1\u5e26\u51ed\u8bc1<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u89e3\u51b3&#xff1a;X-Internal-Key \u670d\u52a1\u51ed\u8bc1<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u539f\u56e0&#xff1a;LoginInterceptor \u5f3a\u5236\u8981 RedisTemplate<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u89e3\u51b3&#xff1a;&#064;Autowired(required&#061;false)<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u539f\u56e0&#xff1a;\u7236 POM \u63d2\u4ef6\u5e72\u6270<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u89e3\u51b3&#xff1a;\u7236 POM \u6539 pluginManagement<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u539f\u56e0&#xff1a;\u6ca1\u6267\u884c CHANGE MASTER<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u89e3\u51b3&#xff1a;init-replication.sh &#043; \u7aef\u5230\u7aef\u9a8c\u8bc1<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u539f\u56e0&#xff1a;\u672c\u673a MySQL80 \u5360 3306<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u89e3\u51b3&#xff1a;\u505c\u670d\u52a1 &#043; sc.exe \u6539\u624b\u52a8<\/p>\n<p><\/span><\/p>\n<h3>\u516d\u3001\u5e76\u53d1\u4e0e\u5f02\u5e38\u8fb9\u754c&#xff1a;\u6d4b\u8bd5\u9501\u4f4f\u884c\u4e3a<\/h3>\n<p>\u62c6\u5fae\u670d\u52a1\u5e26\u6765\u7684\u5e76\u53d1\u95ee\u9898&#xff0c;\u5149\u9760&#034;\u770b\u8d77\u6765\u5bf9&#034;\u662f\u4e0d\u591f\u7684&#xff0c;\u5fc5\u987b\u7528\u6d4b\u8bd5\u9501\u6b7b&#xff1a;<\/p>\n<p>mvn <span class=\"token builtin class-name\">test<\/span>          <span class=\"token comment\"># 70 \u4e2a\u7528\u4f8b<\/span><br \/>\nmvn <span class=\"token parameter variable\">-P<\/span> it <span class=\"token builtin class-name\">test<\/span>    <span class=\"token comment\"># &#043; 5 \u4e2a Testcontainers \u771f MySQL \u96c6\u6210\u6d4b\u8bd5&#xff08;\u9700 Docker&#xff09;<\/span><\/p>\n<p>\u6838\u5fc3\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>20 \u7ebf\u7a0b\u62a2 10 \u4ef6\u5e93\u5b58&#xff0c;\u53ea\u6709 10 \u4e2a\u6210\u529f&#xff0c;\u7edd\u4e0d\u8d85\u8fc7\u5e93\u5b58&#xff08;\u539f\u5b50 UPDATE \u95f8\u95e8&#xff09;<\/li>\n<li>\u540c\u952e\u91cd\u590d\u6263\u51cf\/\u6062\u590d\u56de\u653e\u4e0d\u53cc\u6263\u53cc\u8fd8&#xff1b;\u540c\u952e\u4e0d\u540c\u6570\u91cf\u660e\u786e\u62a5\u53c2\u6570\u51b2\u7a81<\/li>\n<li>\u4e0b\u5355\u843d\u5e93\u5931\u8d25\u8865\u507f\u5df2\u6263\u5e93\u5b58<\/li>\n<li>\u53d6\u6d88\u53ea\u5199 STOCK_RESTORE \u4e8b\u4ef6\u3001\u4e0d\u540c\u6b65\u8fdc\u7a0b\u8c03<\/li>\n<li>\u8c03\u5ea6\u5668\u8d85\u65f6\u9000\u56de WAIT \u91cd\u8bd5&#xff0c;\u4e14\u91cd\u8bd5\u4e0d\u53cc\u8fd8<\/li>\n<li>\u5e93\u5b58\u63a5\u53e3 quantity\/productId\/orderNo \u7f3a\u53c2\/\u975e\u6570\u5b57\/0\/\u8d1f\u6570\/\u8d85\u957f\u5168\u90e8 400<\/li>\n<li>\u5e26 clientRequestId \u91cd\u590d\u4e0b\u5355\u56de\u653e\u5df2\u6709\u8ba2\u5355\u4e14\u4e0d\u78b0\u5e93\u5b58<\/li>\n<li>\u751f\u4ea7\u5bc6\u94a5\u6821\u9a8c&#xff08;\u9632\u6b62\u628a\u9ed8\u8ba4\u5bc6\u94a5\u5e26\u4e0a\u751f\u4ea7&#xff09;<\/li>\n<\/ul>\n<h3>\u4e03\u3001\u9762\u8bd5\/\u7b80\u5386\u4eae\u70b9<\/h3>\n<p>\u7b80\u5386\u600e\u4e48\u5199&#xff08;\u53ef\u76f4\u63a5\u6284\u7684\u53e5\u5f0f&#xff09;&#xff1a;<\/p>\n<p>\u4e3b\u5bfc\u8ba2\u5355\u7cfb\u7edf\u4ece\u5355\u4f53\u5230\u5fae\u670d\u52a1\u7684\u67b6\u6784\u6f14\u8fdb&#xff0c;\u62c6\u5206\u4e3a Gateway &#043; 4 \u4e2a\u4e1a\u52a1\u670d\u52a1&#xff08;Nacos \u6ce8\u518c\u53d1\u73b0 \/ OpenFeign &#043; LoadBalancer \u8fdc\u7a0b\u8c03\u7528&#xff09;&#xff0c;\u5b9e\u73b0\u6545\u969c\u9694\u79bb\u4e0e\u72ec\u7acb\u6269\u5bb9&#xff1b;\u9488\u5bf9\u62c6\u5206\u89e3\u8026\u540e\u672c\u5730\u4e8b\u52a1\u5931\u6548\u7684\u95ee\u9898&#xff0c;\u843d\u5730\u300c\u539f\u5b50 UPDATE \u9632\u8d85\u5356 &#043; \u5e42\u7b49\u952e\u9632\u91cd\u590d &#043; Transactional Outbox \u89e3\u8026\u8fdc\u7a0b\u8c03\u7528\u300d\u4e09\u4ef6\u5957&#xff0c;\u914d\u5408 clientRequestId \u5ba2\u6237\u7aef\u5e42\u7b49&#xff0c;\u8986\u76d6 75 \u4e2a\u6d4b\u8bd5\u7528\u4f8b&#xff08;\u542b 5 \u4e2a Testcontainers \u771f MySQL \u96c6\u6210\u6d4b\u8bd5&#xff09;&#xff0c;20 \u7ebf\u7a0b\u5e76\u53d1\u538b\u6d4b\u4e0b\u96f6\u8d85\u5356\u3001\u91cd\u8bd5\u96f6\u53cc\u6263\u3002<\/p>\n<p>\u80fd\u625b\u4f4f\u8ffd\u95ee\u7684\u56db\u4e2a\u70b9&#xff1a;<\/p>\n<li>\u4e3a\u4ec0\u4e48\u62c6\u2014\u2014\u80fd\u8bf4\u51fa&#034;\u6362\u6765\u7684\u662f\u7ec4\u7ec7\u80fd\u529b\u4e0d\u662f\u6027\u80fd&#034;\u8fd9\u4e2a\u53cd\u5e38\u8bc6\u5224\u65ad<\/li>\n<li>\u62c6\u5b8c\u4e22\u4ec0\u4e48\u2014\u2014\u672c\u5730\u4e8b\u52a1 \u2192 \u5206\u5e03\u5f0f\u4e00\u81f4\u6027&#xff0c;\u4e14\u80fd\u8bb2\u6e05\u56db\u62db\u5404\u81ea\u89e3\u51b3\u4ec0\u4e48<\/li>\n<li>\u4e3a\u4ec0\u4e48\u4e0d\u7528\u5206\u5e03\u5f0f\u9501\/Seata\u2014\u2014\u539f\u5b50 UPDATE \u4e00\u6b65\u5230\u4f4d&#xff0c;\u9501\u53cd\u800c\u6709\u91ca\u653e\u4e0e\u63d0\u4ea4\u4e0d\u540c\u6b65\u7684\u7a7a\u7a97&#xff1b;Seata \u7684 AT \u6a21\u5f0f\u5bf9\u5f53\u524d\u4e1a\u52a1\u91cf\u7ea7\u662f\u8fc7\u5ea6\u8bbe\u8ba1<\/li>\n<li>\u8bda\u5b9e\u8fb9\u754c\u2014\u2014\u9879\u76ee\u7684 Outbox \u8986\u76d6&#034;\u4e1a\u52a1\u6210\u529f\u4f46 MQ \u6ca1\u53d1\u51fa\u53bb&#034;&#xff0c;\u4f46MQ \u4e0e DB \u4e4b\u95f4\u6ca1\u6709\u5206\u5e03\u5f0f\u4e8b\u52a1&#xff0c;\u4e0d\u627f\u8bfa\u7edd\u5bf9\u4e0d\u4e22&#xff0c;\u751f\u4ea7\u4e0a\u4ecd\u9700 MQ \u4e8b\u52a1\u6d88\u606f &#043; \u91cd\u8bd5\u544a\u8b66\u515c\u5e95<\/li>\n<p>\u26a0\ufe0f \u660e\u786e\u6807\u6ce8&#xff1a;\u5206\u5e93\u5206\u8868\u5c5e\u4e8e\u6280\u672f\u50a8\u5907&#xff0c;\u5f53\u524d\u672a\u843d\u5730\u3002\u9879\u76ee\u5df2\u843d\u5730\u7684\u662f\u524d\u7f6e\u7684\u300cID \u8bbe\u8ba1\u300d\u2014\u2014\u8ba2\u5355\u53f7\u7528\u96ea\u82b1\u7b97\u6cd5 &#043; \u57fa\u56e0\u6cd5&#xff08;\u4f4e 8 \u4f4d\u5d4c\u5165 userId % 256 \u63a8\u5bfc\u7684\u5206\u7247\u53f7&#xff09;&#xff0c;\u4e3a\u5c06\u6765\u5206\u8868\u6f14\u8fdb\u7559\u597d\u8def\u7531\u80fd\u529b&#xff1b;detail(id)\/pay\/cancel \u7684\u6309 ID \u67e5\u8be2\u5c1a\u672a\u6539\u9020\u643a\u5e26\u5206\u7247\u4fe1\u606f\u3002\u9762\u8bd5\u65f6\u8981\u8bf4&#034;\u5b66\u4f1a&#034;\u4e0e&#034;\u7528\u4e0a&#034;\u7684\u533a\u522b&#xff0c;\u786c\u8bf4\u843d\u5730\u4e86\u4f1a\u88ab\u8ffd\u7a7f\u3002<\/p>\n<h3>\u516b\u3001\u573a\u666f\u9898\u66b4\u51fb<\/h3>\n<p>\u573a\u666f\u9898 1&#xff1a;stock-service \u6269\u5230 3 \u4e2a\u5b9e\u4f8b\u540e&#xff0c;EventRetryScheduler \u6bcf 5s \u626b\u4e00\u6b21 t_event_record&#xff0c;\u600e\u4e48\u4fdd\u8bc1\u540c\u4e00\u6761\u4e8b\u4ef6\u4e0d\u4f1a\u88ab\u4e09\u4e2a\u5b9e\u4f8b\u91cd\u590d\u8865\u53d1&#xff1f;<\/p>\n<p>\u601d\u8def\u62c6\u89e3&#xff1a;<\/p>\n<p>\u5173\u952e\u4e0d\u5728\u4e8e&#034;\u7528\u5206\u5e03\u5f0f\u9501&#034;&#xff0c;\u800c\u5728\u4e8e\u628a\u62a2\u5360\u505a\u8fdb SQL&#xff1a;<\/p>\n<p><span class=\"token keyword\">UPDATE<\/span> t_event_record<br \/>\n<span class=\"token keyword\">SET<\/span> <span class=\"token keyword\">status<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;SENDING&#039;<\/span><span class=\"token punctuation\">,<\/span> claim_owner <span class=\"token operator\">&#061;<\/span> <span class=\"token comment\">#{owner}, claimed_at &#061; NOW()<\/span><br \/>\n<span class=\"token keyword\">WHERE<\/span> id <span class=\"token operator\">&#061;<\/span> <span class=\"token comment\">#{id} AND status &#061; &#039;WAIT&#039;;<\/span><\/p>\n<ul>\n<li>\u5f71\u54cd\u884c\u6570 &#061; 1&#xff1a;\u62a2\u5230\u4e86&#xff0c;\u53d1 MQ<\/li>\n<li>\u5f71\u54cd\u884c\u6570 &#061; 0&#xff1a;\u5df2\u88ab\u522b\u7684\u5b9e\u4f8b\u62a2\u8d70&#xff0c;\u76f4\u63a5\u8df3\u8fc7<\/li>\n<\/ul>\n<p>\u6570\u636e\u5e93\u884c\u9501\u4fdd\u8bc1\u4e86\u8fd9\u6761 UPDATE \u7684\u539f\u5b50\u6027&#xff0c;\u591a\u5b9e\u4f8b\u5929\u7136\u4e92\u65a5&#xff0c;\u4e0d\u9700\u8981\u5f15\u5165\u4efb\u4f55\u989d\u5916\u7684\u5206\u5e03\u5f0f\u534f\u8c03\u7ec4\u4ef6\u3002claim_owner \u8bb0\u5f55\u5b9e\u4f8b\u6807\u8bc6\u4fbf\u4e8e\u6392\u67e5&#xff0c;claimed_at \u7528\u4e8e\u56de\u6536&#034;\u53d1\u9001\u4e2d\u50f5\u5c38&#034;\u3002<\/p>\n<p>\u8ffd\u95ee&#xff1a;\u5982\u679c\u5b9e\u4f8b\u5728 SENDING \u72b6\u6001\u65f6\u8fdb\u7a0b\u88ab kill \u4e86&#xff0c;\u8fd9\u6761\u4e8b\u4ef6\u4f1a\u6c38\u8fdc\u5361\u4f4f\u5417&#xff1f;<\/p>\n<p>\u4e0d\u4f1a\u3002reclaimStuck \u4f1a\u626b\u63cf SENDING \u4e14 claimed_at \u8d85\u8fc7 10 \u5206\u949f\u7684\u8bb0\u5f55&#xff0c;\u56de\u9000\u6210 WAIT \u5e76\u6e05\u7a7a claim_owner \u91cd\u65b0\u8865\u53d1\u3002\u5224\u5b9a\u57fa\u51c6\u5fc5\u987b\u662f\u9886\u53d6\u65f6\u95f4 claimed_at&#xff0c;\u4e0d\u662f next_retry_time\u2014\u2014\u5982\u679c\u6309\u540e\u8005\u5224\u65ad&#xff0c;\u4e00\u4e2a\u521a\u88ab\u9886\u53d6\u3001\u8fd8\u6ca1\u6765\u5f97\u53ca\u53d1\u9001\u7684\u5728\u9014\u4e8b\u4ef6\u4f1a\u88ab\u8bef\u5224\u65ad\u8d85\u65f6\u88ab\u56de\u6536&#xff0c;\u5bfc\u81f4\u91cd\u590d\u8865\u53d1\u3002<\/p>\n<p>\u573a\u666f\u9898 2&#xff1a;order-service \u8c03\u7528 stock-service \u6263\u5e93\u5b58&#xff0c;Feign \u914d\u4e86 3 \u6b21\u91cd\u8bd5\u3002\u73b0\u5728\u7ebf\u4e0a\u51fa\u73b0&#034;\u5e93\u5b58\u5c11\u6263\u4e86&#034;&#xff08;\u7528\u6237\u4e0b\u5355\u6210\u529f\u4f46\u5e93\u5b58\u6ca1\u51cf&#xff09;&#xff0c;\u4f60\u600e\u4e48\u6392\u67e5&#xff1f;<\/p>\n<p>\u5148\u5206\u65b9\u5411&#xff0c;&#034;\u5c11\u6263&#034;\u610f\u5473\u7740\u8bf7\u6c42\u6839\u672c\u6ca1\u5230\u8fbe\u4e0b\u6e38\u6216\u88ab\u9759\u9ed8\u541e\u6389&#xff0c;\u6309\u94fe\u8def\u4ece\u5916\u5f80\u5185\u67e5&#xff1a;<\/p>\n<li>\u770b\u94fe\u8def\u8ffd\u8e2a&#xff1a;\u7528 X-Trace-Id \u628a order \u4fa7\u65e5\u5fd7\u548c stock \u4fa7\u65e5\u5fd7\u4e32\u8d77\u6765\u3002\u5982\u679c order \u6709\u51fa\u7ad9\u8bb0\u5f55\u3001stock \u5b8c\u5168\u6ca1\u6709\u5165\u7ad9\u8bb0\u5f55 \u2192 \u8bf7\u6c42\u6ca1\u5230&#xff0c;\u95ee\u9898\u5728\u7f51\u7edc\/\u8d1f\u8f7d\u5747\u8861\u5c42\u3002<\/li>\n<li>\u770b Nacos \u5b9e\u4f8b\u5217\u8868&#xff1a;stock \u662f\u5426\u6709\u5b9e\u4f8b\u88ab\u6458\u6389\u4f46\u672c\u5730\u7f13\u5b58\u672a\u5237\u65b0&#xff0c;LoadBalancer \u628a\u8bf7\u6c42\u6253\u5230\u4e86\u5df2\u4e0b\u7ebf\u7684\u5b9e\u4f8b\u3002Feign \u91cd\u8bd5\u867d\u7136\u4f1a\u6362\u5b9e\u4f8b&#xff0c;\u4f46\u5982\u679c\u91cd\u8bd5\u6b21\u6570\u8017\u5c3d\u4ecd\u5931\u8d25&#xff0c;\u6700\u7ec8\u8fd4\u56de\u5f02\u5e38\u2014\u2014\u8fd9\u79cd\u60c5\u51b5\u4e0b order \u5e94\u8be5\u56de\u6eda&#xff0c;\u4e0d\u8be5\u51fa\u73b0&#034;\u4e0b\u5355\u6210\u529f&#034;\u3002<\/li>\n<li>\u770b\u5e42\u7b49\u952e\u8868&#xff1a;\u67e5 t_stock_operation \u91cc\u6709\u6ca1\u6709\u8fd9\u6761 (order_no, product_id, DEDUCT)\u3002\u5982\u679c\u8bb0\u5f55\u5b58\u5728\u4f46\u5e93\u5b58\u6ca1\u51cf \u2192 \u8bf4\u660e\u62a2\u5230\u5e42\u7b49\u952e\u4e4b\u540e\u7684\u539f\u5b50 UPDATE \u51fa\u95ee\u9898\u4e86&#xff0c;\u5f88\u53ef\u80fd\u662f\u5f71\u54cd\u884c\u6570\u5224\u65ad\u903b\u8f91\u5199\u53cd&#xff0c;\u6216\u8005\u4e8b\u52a1\u88ab\u9759\u9ed8\u56de\u6eda\u3002<\/li>\n<li>\u770b UnexpectedRollbackException&#xff1a;\u8fd9\u662f\u6700\u9634\u7684\u4e00\u79cd\u3002\u5982\u679c insertClaim \u629b\u51fa\u7684 DuplicateKeyException \u5728\u5185\u5c42 &#064;Transactional(REQUIRED) \u65b9\u6cd5\u91cc\u88ab catch&#xff0c;\u4e8b\u52a1\u5df2\u88ab\u6807\u8bb0\u4e3a rollback-only&#xff0c;\u5916\u5c42\u63d0\u4ea4\u65f6\u629b UnexpectedRollbackException&#xff0c;\u6574\u4e2a\u4e8b\u52a1\u56de\u6eda\u2014\u2014\u5e42\u7b49\u8bb0\u5f55\u548c\u6263\u51cf\u4e00\u8d77\u6d88\u5931&#xff0c;\u8868\u73b0\u4e3a&#034;\u5c11\u6263&#034;\u3002\u4fee\u590d\u65b9\u5f0f\u662f\u8ba9\u5f02\u5e38\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u65b9\u6cd5\u5185\u90e8\u5904\u7406&#xff08;\u9879\u76ee\u5df2\u7528\u96c6\u6210\u6d4b\u8bd5\u9501\u5b9a\u8fd9\u4e2a\u884c\u4e3a&#xff09;\u3002<\/li>\n<li>\u515c\u5e95&#xff1a;\u5373\u4f7f\u4ee5\u4e0a\u90fd\u6392\u67e5\u5b8c&#xff0c;\u4e5f\u8981\u6709\u5bf9\u8d26\u4efb\u52a1\u2014\u2014\u5b9a\u671f\u6bd4\u5bf9 t_order_item \u4e0e t_product \u7684\u5e93\u5b58\u6d41\u6c34&#xff0c;\u628a\u5dee\u5f02\u635e\u51fa\u6765\u4eba\u5de5\/\u81ea\u52a8\u8865\u6b63\u3002<\/li>\n<p>\u8fd9\u4e2a\u95ee\u9898\u7684\u672c\u8d28&#xff1a;\u5e42\u7b49\u8bbe\u8ba1\u4fdd\u8bc1\u4e86&#034;\u4e0d\u4f1a\u591a\u6263&#034;&#xff0c;\u4f46&#034;\u4e0d\u4f1a\u5c11\u6263&#034;\u8981\u9760\u4e8b\u52a1\u8fb9\u754c\u6b63\u786e &#043; \u5bf9\u8d26\u515c\u5e95\u3002\u4e24\u4ef6\u4e8b\u4e0d\u80fd\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n<hr \/>\n<p>\u9879\u76ee\u4ed3\u5e93&#xff1a;order-system-cloud<\/p>\n<p>\u4ece\u5355\u4f53\u5230\u5fae\u670d\u52a1\u518d\u5230\u6d88\u606f\u9a71\u52a8&#xff0c;\u4e09\u6b65\u6f14\u8fdb&#xff0c;\u6bcf\u4e00\u6b65\u90fd\u5728\u89e3\u51b3\u4e0a\u4e00\u6b65\u7684\u74f6\u9888\u3002\u5982\u679c\u4f60\u4e5f\u5728\u505a\u7c7b\u4f3c\u7684\u67b6\u6784\u6f14\u8fdb&#xff0c;\u6b22\u8fce\u4ea4\u6d41\u2014\u2014\u67b6\u6784\u6ca1\u6709\u94f6\u5f39&#xff0c;\u53ea\u6709\u53d6\u820d\u3002<\/p>\n<p>\u63a8\u8350\u6807\u7b7e&#xff1a;\u5fae\u670d\u52a1\u3001Spring Cloud Alibaba\u3001OpenFeign\u3001Nacos\u3001\u67b6\u6784\u6f14\u8fdb<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece\u5355\u4f53\u5230\u5fae\u670d\u52a1&#xff1a;\u8ba2\u5355\u7cfb\u7edf\u62c6\u6210 5 \u4e2a\u8fdb\u7a0b\u540e&#xff0c;\u89e3\u51b3\u4e86\u4ec0\u4e48\u53c8\u5931\u53bb\u4e86\u4ec0\u4e48&#xff1f; \u914d\u5957\u4ed3\u5e93&#xff1a;order-system&#xff08;\u5355\u4f53\u7248&#xff09;\u2192 order-system-cloud&#xff08;\u5fae\u670d\u52a1\u7248&#xff0c;\u672c\u6587\u4e3b\u89d2&#xff09; \u5f88\u591a\u4eba\u8bb2\u5fae\u670d\u52a1&#xff0c;\u8bb2\u7684\u662f\u300c\u5fae\u670d\u52a1\u6709\u4ec0\u4e48\u597d\u5904\u300d\u7684 PPT\u3002\u4f46\u771f\u5230\u4e86\u751f\u4ea7\u4e0a&#xff0c;\u6bd4\u300c\u597d\u5904\u300d\u66f4\u91cd\u8981\u7684\u662f\u4ee3\u4ef7\u2014\u2014\u62c6\u5f00\u4e4b\u540e\u4f60\u5931\u53bb\u4e86\u4ec0\u4e48&#xff0c;\u600e\u4e48\u628a\u5b83\u8865\u56de\u6765<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11653,763,1348,188],"topic":[],"class_list":["post-110923","post","type-post","status-publish","format-standard","hentry","category-server","tag-11653","tag-763","tag-1348","tag-188"],"yoast_head":"<!-- This site is optimized with the 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