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| <label for=m-enoverviewnoticeslog4j-check><a href=/en/overview/notices/log4j/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-enoverviewnoticeslog4j><span>Log4j vulnerability impact</span></a></label></li></ul></li></ul></li></ul></nav></div></div><main class="col-12 col-md-9 col-xl-8 pl-md-5" role=main><nav aria-label=breadcrumb class=td-breadcrumbs><ol class=breadcrumb><li class=breadcrumb-item><a href=https://cn.dubbo.apache.org/en/overview/>Overview</a></li><li class=breadcrumb-item><a href=https://cn.dubbo.apache.org/en/overview/tasks/>Tasks</a></li><li class=breadcrumb-item><a href=https://cn.dubbo.apache.org/en/overview/tasks/ecosystem/>Microservice Governance</a></li><li class="breadcrumb-item active" aria-current=page><a href=https://cn.dubbo.apache.org/en/overview/tasks/ecosystem/transaction/ aria-disabled=true class="btn-link disabled">Transaction Management</a></li></ol></nav><div class=td-content><h1>Transaction Management</h1><div class=lead>This example demonstrates how to implement transaction management of distributed Dubbo services through Seata to ensure data consistency.</div><header class=article-meta></header><h2 id=what-is-seata>What is Seata</h2><p>Seata is an open source distributed transaction solution dedicated to providing high-performance and easy-to-use distributed transaction services. Seata will provide users with AT, TCC, SAGA and XA transaction modes to create a one-stop distributed solution for users.</p><h2 id=1-example-architecture-description>1. Example architecture description</h2><p>The user purchases commodity business, and the whole business includes 3 microservices:</p><ul><li>Inventory service: deduction of the inventory quantity of a given item.</li><li>Order service: Generate orders based on purchase requests.</li><li>Account Services: deduction of the user account amount.</li></ul><p><img src=/imgs/docs3-v2/java-sdk/seata/transaction-1.png alt=image.png></p><h3 id=storageservice>StorageService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>StorageService</span> { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#586e75>/** |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> * Deducted storage quantity |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> */</span> |
| </span></span><span style=display:flex><span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>deduct</span>(String commodityCode, <span style=color:#dc322f>int</span> count); |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h3 id=orderservice>OrderService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>OrderService</span> { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#586e75>/** |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> * Create Order |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> */</span> |
| </span></span><span style=display:flex><span> Order <span style=color:#268bd2>create</span>(String userId, String commodityCode, <span style=color:#dc322f>int</span> orderCount); |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h3 id=accountservice>AccountService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>AccountService</span> { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#586e75>/** |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> * Borrow from user account |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> */</span> |
| </span></span><span style=display:flex><span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>debit</span>(String userId, <span style=color:#dc322f>int</span> money); |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h2 id=two-the-main-business-logic>Two, the main business logic</h2><h3 id=businessservice>BusinessService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>BusinessServiceImpl</span> <span style=color:#268bd2>implements</span> BusinessService { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>private</span> StorageService storageService; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>private</span> OrderService orderService; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#586e75>/** |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> * Purchasing |
| </span></span></span><span style=display:flex><span><span style=color:#586e75> */</span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>purchase</span>(String userId, String commodityCode, <span style=color:#dc322f>int</span> orderCount) { |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// Deduct storage amount</span> |
| </span></span><span style=display:flex><span> storageService.deduct(commodityCode, orderCount); |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// Create Order</span> |
| </span></span><span style=display:flex><span> orderService.create(userId, commodityCode, orderCount); |
| </span></span><span style=display:flex><span> } |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h3 id=storageservice-1>StorageService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>StorageServiceImpl</span> <span style=color:#268bd2>implements</span> StorageService { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>private</span> JdbcTemplate jdbcTemplate; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>@Override</span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>deduct</span>(String commodityCode, <span style=color:#dc322f>int</span> count) { |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// Modify the database: deduct the amount of storage</span> |
| </span></span><span style=display:flex><span> jdbcTemplate.update(<span style=color:#2aa198>"update storage_tbl set count = count - ? where commodity_code = ?"</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>new</span> Object<span style=color:#719e07>[]</span>{count, commodityCode}); |
| </span></span><span style=display:flex><span> } |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h3 id=orderservice-1>OrderService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>OrderServiceImpl</span> <span style=color:#268bd2>implements</span> OrderService { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>private</span> AccountService accountService; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>private</span> JdbcTemplate jdbcTemplate; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> Order <span style=color:#268bd2>create</span>(String userId, String commodityCode, <span style=color:#dc322f>int</span> orderCount) { |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// calculate the amount</span> |
| </span></span><span style=display:flex><span> <span style=color:#dc322f>int</span> orderMoney <span style=color:#719e07>=</span> calculate(commodityCode, orderCount); |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// The amount deducted from the user account</span> |
| </span></span><span style=display:flex><span> accountService.debit(userId, orderMoney); |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// Modify the database: create a new order</span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>final</span> Order order <span style=color:#719e07>=</span> <span style=color:#719e07>new</span> Order(); |
| </span></span><span style=display:flex><span> order.userId <span style=color:#719e07>=</span> userId; |
| </span></span><span style=display:flex><span> order.commodityCode <span style=color:#719e07>=</span> commodityCode; |
| </span></span><span style=display:flex><span> order.count <span style=color:#719e07>=</span> orderCount; |
| </span></span><span style=display:flex><span> order.money <span style=color:#719e07>=</span> orderMoney; |
| </span></span><span style=display:flex><span> KeyHolder keyHolder <span style=color:#719e07>=</span> <span style=color:#719e07>new</span> GeneratedKeyHolder(); |
| </span></span><span style=display:flex><span> jdbcTemplate. <span style=color:#268bd2>update</span>(con <span style=color:#719e07>-></span> { |
| </span></span><span style=display:flex><span> PreparedStatement pst <span style=color:#719e07>=</span> con. <span style=color:#268bd2>prepareStatement</span>( |
| </span></span><span style=display:flex><span> <span style=color:#2aa198>"insert into order_tbl (user_id, commodity_code, count, money) values (?, ?, ?, ?)"</span>, |
| </span></span><span style=display:flex><span> PreparedStatement. RETURN_GENERATED_KEYS); |
| </span></span><span style=display:flex><span> pst.setObject(1, order.userId); |
| </span></span><span style=display:flex><span> pst.setObject(2, order.commodityCode); |
| </span></span><span style=display:flex><span> pst.setObject(3, order.count); |
| </span></span><span style=display:flex><span> pst.setObject(4, order.money); |
| </span></span><span style=display:flex><span> <span style=color:#719e07>return</span> pst; |
| </span></span><span style=display:flex><span> }, keyHolder); |
| </span></span><span style=display:flex><span> order.id <span style=color:#719e07>=</span> keyHolder.getKey().longValue(); |
| </span></span><span style=display:flex><span> <span style=color:#719e07>return</span> order; |
| </span></span><span style=display:flex><span> } |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h3 id=accountservice-1>AccountService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>AccountServiceImpl</span> <span style=color:#268bd2>implements</span> AccountService { |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>private</span> JdbcTemplate jdbcTemplate; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>@Override</span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>debit</span>(String userId, <span style=color:#dc322f>int</span> money) { |
| </span></span><span style=display:flex><span> <span style=color:#586e75>// Modify the database: deduct the amount from the user account</span> |
| </span></span><span style=display:flex><span> jdbcTemplate.update(<span style=color:#2aa198>"update account_tbl set money = money - ? where user_id = ?"</span>, <span style=color:#719e07>new</span> Object<span style=color:#719e07>[]</span>{money, userId}); |
| </span></span><span style=display:flex><span> } |
| </span></span><span style=display:flex><span>} |
| </span></span></code></pre></div><h2 id=3-quick-start-example>3. Quick start example</h2><h3 id=step-1-download-the-source-code>Step 1: Download the source code</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-shell data-lang=shell><span style=display:flex><span>git clone -b master https://github.com/apache/dubbo-samples.git |
| </span></span><span style=display:flex><span><span style=color:#b58900>cd</span> ./dubbo-samples-transaction/ |
| </span></span></code></pre></div><h3 id=step-2-start-seata-server-and-mysql-through-docker-compose>Step 2: Start Seata-Server and MySQL through docker-compose</h3><p>In this example, we use docker-compose to quickly pull up services like seata-server and mysql.</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span><span style=color:#b58900>cd</span> src/main/resources/docker |
| </span></span><span style=display:flex><span>docker-compose up |
| </span></span></code></pre></div><h3 id=step-3-build-use-cases>Step 3: Build use cases</h3><p>Execute the maven command to package the demo project</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>mvn clean package |
| </span></span></code></pre></div><h3 id=step-4-start-accountservice>Step 4: Start AccountService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span>java <span style=color:#719e07>-</span>classpath .<span style=color:#719e07>/</span>target<span style=color:#719e07>/</span>dubbo<span style=color:#719e07>-</span>samples<span style=color:#719e07>-</span>transaction<span style=color:#719e07>-</span>1.0<span style=color:#719e07>-</span>SNAPSHOT.jar org.apache.dubbo.samples.starter.DubboAccountServiceStarter |
| </span></span></code></pre></div><h3 id=step-5-start-orderservice>Step 5: Start OrderService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span>java <span style=color:#719e07>-</span>classpath .<span style=color:#719e07>/</span>target<span style=color:#719e07>/</span>dubbo<span style=color:#719e07>-</span>samples<span style=color:#719e07>-</span>transaction<span style=color:#719e07>-</span>1.0<span style=color:#719e07>-</span>SNAPSHOT.jar org.apache.dubbo.samples.starter.DubboOrderServiceStarter |
| </span></span></code></pre></div><h3 id=step-6-start-storageservice>Step 6: Start StorageService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span>java <span style=color:#719e07>-</span>classpath .<span style=color:#719e07>/</span>target<span style=color:#719e07>/</span>dubbo<span style=color:#719e07>-</span>samples<span style=color:#719e07>-</span>transaction<span style=color:#719e07>-</span>1.0<span style=color:#719e07>-</span>SNAPSHOT.jar org.apache.dubbo.samples.starter.DubboStorageServiceStarter |
| </span></span></code></pre></div><h3 id=step-7-start-businessservice>Step 7: Start BusinessService</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span>java <span style=color:#719e07>-</span>classpath .<span style=color:#719e07>/</span>target<span style=color:#719e07>/</span>dubbo<span style=color:#719e07>-</span>samples<span style=color:#719e07>-</span>transaction<span style=color:#719e07>-</span>1.0<span style=color:#719e07>-</span>SNAPSHOT.jar org.apache.dubbo.samples.starter.DubboBusinessTester |
| </span></span></code></pre></div><h2 id=4-example-core-process>4. Example core process</h2><p><img src=/imgs/docs3-v2/java-sdk/seata/transaction-2.png alt=image.png></p><h3 id=step-1-modify-the-business-code>Step 1: Modify the business code</h3><p>Here only one line of annotation <code>@GlobalTransactional</code> is required to be written on the method of the business initiator:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span> <span style=color:#268bd2>@GlobalTransactional</span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>purchase</span>(String userId, String commodityCode, <span style=color:#dc322f>int</span> orderCount) { |
| </span></span><span style=display:flex><span> … |
| </span></span><span style=display:flex><span> } |
| </span></span></code></pre></div><h3 id=step-2-install-the-database>Step 2: Install the database</h3><ul><li>Requirements: MySQL (InnoDB storage engine).</li></ul><p><strong>Tips:</strong> In fact, the 3 microservices in the example require 3 independent databases, but for convenience we use the same physical database and configure 3 logical connection strings.</p><p>Change the database url, username and password in the following xml files</p><p>dubbo-account-service.xml |
| dubbo-order-service.xml |
| dubbo-storage-service.xml</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-xml data-lang=xml><span style=display:flex><span> <span style=color:#268bd2><property</span> name=<span style=color:#2aa198>"url"</span> value=<span style=color:#2aa198>"jdbc:mysql://x.x.x.x:3306/xxx"</span> <span style=color:#268bd2>/></span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2><property</span> name=<span style=color:#2aa198>"username"</span> value=<span style=color:#2aa198>"xxx"</span> <span style=color:#268bd2>/></span> |
| </span></span><span style=display:flex><span> <span style=color:#268bd2><property</span> name=<span style=color:#2aa198>"password"</span> value=<span style=color:#2aa198>"xxx"</span> <span style=color:#268bd2>/></span> |
| </span></span></code></pre></div><h3 id=step-3-create-undo_log-table-for-seata>Step 3: Create undo_log table for Seata</h3><p><code>UNDO_LOG</code> This table is used in Seata’s AT mode.</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-sql data-lang=sql><span style=display:flex><span><span style=color:#586e75>-- Note that when the Seata version is upgraded to 0.3.0+, the normal index will be changed to a unique index. |
| </span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#719e07>CREATE</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>`</span>undo_log<span style=color:#719e07>`</span> ( |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>id<span style=color:#719e07>`</span> <span style=color:#b58900>bigint</span>(<span style=color:#2aa198>20</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span> AUTO_INCREMENT, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>branch_id<span style=color:#719e07>`</span> <span style=color:#b58900>bigint</span>(<span style=color:#2aa198>20</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>xid<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>100</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>context<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>128</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>rollback_info<span style=color:#719e07>`</span> longblob <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>log_status<span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>log_created<span style=color:#719e07>`</span> datetime <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>log_modified<span style=color:#719e07>`</span> datetime <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>ext<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>100</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>PRIMARY</span> <span style=color:#719e07>KEY</span> (<span style=color:#719e07>`</span>id<span style=color:#719e07>`</span>), |
| </span></span><span style=display:flex><span> <span style=color:#719e07>UNIQUE</span> <span style=color:#719e07>KEY</span> <span style=color:#719e07>`</span>ux_undo_log<span style=color:#719e07>`</span> (<span style=color:#719e07>`</span>xid<span style=color:#719e07>`</span>,<span style=color:#719e07>`</span>branch_id<span style=color:#719e07>`</span>) |
| </span></span><span style=display:flex><span>) ENGINE<span style=color:#719e07>=</span>InnoDB AUTO_INCREMENT<span style=color:#719e07>=</span><span style=color:#2aa198>1</span> <span style=color:#719e07>DEFAULT</span> CHARSET<span style=color:#719e07>=</span>utf8; |
| </span></span></code></pre></div><h3 id=step-4-create-related-business-tables>Step 4: Create related business tables</h3><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-sql data-lang=sql><span style=display:flex><span> |
| </span></span><span style=display:flex><span><span style=color:#719e07>DROP</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>IF</span> <span style=color:#719e07>EXISTS</span> <span style=color:#719e07>`</span>storage_tbl<span style=color:#719e07>`</span>; |
| </span></span><span style=display:flex><span><span style=color:#719e07>CREATE</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>`</span>storage_tbl<span style=color:#719e07>`</span> ( |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>id<span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span> AUTO_INCREMENT, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>commodity_code<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>255</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span><span style=color:#719e07>count</span><span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#2aa198>0</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>PRIMARY</span> <span style=color:#719e07>KEY</span> (<span style=color:#719e07>`</span>id<span style=color:#719e07>`</span>), |
| </span></span><span style=display:flex><span> <span style=color:#719e07>UNIQUE</span> <span style=color:#719e07>KEY</span> (<span style=color:#719e07>`</span>commodity_code<span style=color:#719e07>`</span>) |
| </span></span><span style=display:flex><span>) ENGINE<span style=color:#719e07>=</span>InnoDB <span style=color:#719e07>DEFAULT</span> CHARSET<span style=color:#719e07>=</span>utf8; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span><span style=color:#719e07>DROP</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>IF</span> <span style=color:#719e07>EXISTS</span> <span style=color:#719e07>`</span>order_tbl<span style=color:#719e07>`</span>; |
| </span></span><span style=display:flex><span><span style=color:#719e07>CREATE</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>`</span>order_tbl<span style=color:#719e07>`</span> ( |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>id<span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span> AUTO_INCREMENT, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>user_id<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>255</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>commodity_code<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>255</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span><span style=color:#719e07>count</span><span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#2aa198>0</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>money<span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#2aa198>0</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>PRIMARY</span> <span style=color:#719e07>KEY</span> (<span style=color:#719e07>`</span>id<span style=color:#719e07>`</span>) |
| </span></span><span style=display:flex><span>) ENGINE<span style=color:#719e07>=</span>InnoDB <span style=color:#719e07>DEFAULT</span> CHARSET<span style=color:#719e07>=</span>utf8; |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span><span style=color:#719e07>DROP</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>IF</span> <span style=color:#719e07>EXISTS</span> <span style=color:#719e07>`</span>account_tbl<span style=color:#719e07>`</span>; |
| </span></span><span style=display:flex><span><span style=color:#719e07>CREATE</span> <span style=color:#719e07>TABLE</span> <span style=color:#719e07>`</span>account_tbl<span style=color:#719e07>`</span> ( |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>id<span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>NOT</span> <span style=color:#719e07>NULL</span> AUTO_INCREMENT, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>user_id<span style=color:#719e07>`</span> <span style=color:#b58900>varchar</span>(<span style=color:#2aa198>255</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#719e07>NULL</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>`</span>money<span style=color:#719e07>`</span> <span style=color:#b58900>int</span>(<span style=color:#2aa198>11</span>) <span style=color:#719e07>DEFAULT</span> <span style=color:#2aa198>0</span>, |
| </span></span><span style=display:flex><span> <span style=color:#719e07>PRIMARY</span> <span style=color:#719e07>KEY</span> (<span style=color:#719e07>`</span>id<span style=color:#719e07>`</span>) |
| </span></span><span style=display:flex><span>) ENGINE<span style=color:#719e07>=</span>InnoDB <span style=color:#719e07>DEFAULT</span> CHARSET<span style=color:#719e07>=</span>utf8; |
| </span></span></code></pre></div><h3 id=step-5-start-the-seata-server-service>Step 5: Start the Seata-Server service</h3><ul><li>Download the <a href=https://github.com/seata/seata/releases>server package</a>, unzip it.</li></ul><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-shell data-lang=shell><span style=display:flex><span>Usage: sh seata-server.sh<span style=color:#719e07>(</span><span style=color:#719e07>for</span> linux and mac<span style=color:#719e07>)</span> or cmd seata-server.bat<span style=color:#719e07>(</span><span style=color:#719e07>for</span> windows<span style=color:#719e07>)</span> <span style=color:#719e07>[</span>options<span style=color:#719e07>]</span> |
| </span></span><span style=display:flex><span> Options: |
| </span></span><span style=display:flex><span> --host, -h |
| </span></span><span style=display:flex><span> The host to bind. |
| </span></span><span style=display:flex><span> Default: 0.0.0.0 |
| </span></span><span style=display:flex><span> --port, -p |
| </span></span><span style=display:flex><span> The port to listen. |
| </span></span><span style=display:flex><span> Default: <span style=color:#2aa198>8091</span> |
| </span></span><span style=display:flex><span> --storeMode, -m |
| </span></span><span style=display:flex><span> log store mode: file, db |
| </span></span><span style=display:flex><span> Default: file |
| </span></span><span style=display:flex><span> --help |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span>e.g. |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span>sh seata-server.sh -p <span style=color:#2aa198>8091</span> -h 127.0.0.1 -m file |
| </span></span></code></pre></div><div id=pre-footer><h2>Feedback</h2><p class=feedback--prompt>Was this page helpful?</p><button class="btn btn-primary mb-4 feedback--yes">Yes</button> |
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Quick start example</a><ul><li><a href=#step-1-download-the-source-code>Step 1: Download the source code</a></li><li><a href=#step-2-start-seata-server-and-mysql-through-docker-compose>Step 2: Start Seata-Server and MySQL through docker-compose</a></li><li><a href=#step-3-build-use-cases>Step 3: Build use cases</a></li><li><a href=#step-4-start-accountservice>Step 4: Start AccountService</a></li><li><a href=#step-5-start-orderservice>Step 5: Start OrderService</a></li><li><a href=#step-6-start-storageservice>Step 6: Start StorageService</a></li><li><a href=#step-7-start-businessservice>Step 7: Start BusinessService</a></li></ul></li><li><a href=#4-example-core-process>4. 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