{"id":39578,"date":"2023-02-21T15:27:10","date_gmt":"2023-10-27T07:17:31","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/spring-boot%e8%ae%ad%e7%bb%83%e8%90%a5%ef%bc%9aspring-boot-spring-data-jdbc%e7%89%88\/"},"modified":"2024-04-29T15:37:14","modified_gmt":"2024-04-29T07:37:14","slug":"spring-boot%e8%ae%ad%e7%bb%83%e8%90%a5%ef%bc%9aspring-boot-spring-data-jdbc%e7%89%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/spring-boot%e8%ae%ad%e7%bb%83%e8%90%a5%ef%bc%9aspring-boot-spring-data-jdbc%e7%89%88\/","title":{"rendered":"Spring Boot\u8bad\u7ec3\u8425\uff1aSpring Boot + Spring Data JDBC\u7248"},"content":{"rendered":"<p>\u8fd9\u662fSpring Boot\u8425\u7cfb\u5217\u7684\u8bfe\u7a0b\uff0c\u4e3b\u9898\u662fSpring Boot + Spring Data JDBC\u3002<\/p>\n<h2>\u8fd9\u6b21\u7684\u76ee\u7684<\/h2>\n<p>\u4f7f\u7528Spring Boot\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f7f\u7528Spring Data JDBC\u8fdb\u884c\u6570\u636e\u5e93\u8bbf\u95ee\u3002<\/p>\n<h2>\u8fd9\u6b21\u8981\u4f7f\u7528\u7684\u5e93<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">spring-boot-starter:2.2.0.M4<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">spring-boot-starter-data-jdbc:2.2.0.M4<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">spring-boot-starter-test:2.2.0.M4<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">h2:1.4.199<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">lombok:1.18.8<\/ul>\n<p>\u901a\u8fc7\u4f7f\u7528Spring Initializr\u521b\u5efa\u9879\u76ee\uff0c\u53ef\u4ee5\u89e3\u51b3\u4ee5\u4e0b\u6b65\u9aa4\u4e2d\u7684\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n<h2>\u6570\u636e\u5e93\u8bbf\u95ee<\/h2>\n<p>\u5728\u8fdb\u884cSpring Data JDBC\u7684\u5b9e\u73b0\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8fdb\u884c\u6570\u636e\u5e93\u8bbf\u95ee\u7684\u914d\u7f6e\u3002<\/p>\n<h3>\u6570\u636e\u5e93\u8bbf\u95ee\u7684\u5b9a\u4e49<\/h3>\n<p>\u5728Spring Boot\u4e2d\uff0c\u5b83\u4f1a\u81ea\u52a8\u5e2e\u6211\u4eec\u5b9a\u4e49\u4e00\u4e9b\u8bbf\u95ee\u6570\u636e\u5e93\u7684Bean\uff0c\u6bd4\u5982DataSource\u7b49\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u4f1a\u8bbf\u95ee\u5185\u5b58\u4e2d\u7684H2\u6570\u636e\u5e93\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u6dfb\u52a0h2\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<p>pom.xml \u53ef\u4ee5\u88ab\u7ffb\u8bd1\u4e3a \u201c\u9879\u76ee\u5bf9\u8c61\u6a21\u578b\u201d\uff0c\u662f\u4e00\u4e2a\u7528\u4e8e\u7ba1\u7406\u548c\u6784\u5efaJava\u9879\u76ee\u7684XML\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"nt\">&lt;dependencies&gt;<\/span>\r\n        <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n            <span class=\"nt\">&lt;groupId&gt;<\/span>com.h2database<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n            <span class=\"nt\">&lt;artifactId&gt;<\/span>h2<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n            <span class=\"nt\">&lt;scope&gt;<\/span>runtime<span class=\"nt\">&lt;\/scope&gt;<\/span>\r\n        <span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/dependencies&gt;<\/span>\r\n<\/code><\/pre>\n<blockquote><p>\u6ce8\u610f\u4e8b\u9879\u3002<br \/>\n\u5982\u679c\u5728Spring Boot\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u66f4\u6539\u9a71\u52a8\u7a0b\u5e8f\u548c\u8fde\u63a5\u76ee\u6807\uff0c\u5219\u53ef\u4ee5\u8bbf\u95ee\u53e6\u4e00\u4e2a\u6570\u636e\u5e93\u3002\uff08\u9700\u8981\u6dfb\u52a0\u76f8\u5e94\u4f9d\u8d56\u7684\u9a71\u52a8\u7a0b\u5e8f\uff09<\/p>\n<p>src\/main\/resources\/application.yml<\/p>\n<p>spring:<br \/>\ndatasource:<br \/>\ndriver-class-name: org.postgresql.Driver<br \/>\nurl: jdbc:postgresql:\/\/localhost:5432\/testdb<br \/>\nusername: postgres<br \/>\npassword: postgres<\/p><\/blockquote>\n<p>\u5982\u679c\u5728src\/main\/resources\u7684\u76f4\u63a5\u5b50\u76ee\u5f55\u4e0b\u521b\u5efa\u4ee5\u4e0b\u7684SQL\u6587\u4ef6\uff0c\u5e94\u7528\u5728\u542f\u52a8\u65f6\u4e5f\u53ef\u4ee5\u81ea\u52a8\u8fdb\u884c\u6570\u636e\u5e93\u7684\u521d\u59cb\u5316\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u88ab\u8ba4\u4e3a\u6709\u6548\u7684SQL\u6587\u4ef6\u5982\u4e0b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">schema.sql<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">schema-${platform}.sql<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">data.sql<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">data-${platform}.sql<\/ul>\n<p>\u5c3d\u7ba1\u770b\u8d77\u6765\u4e00\u6837\uff0c\u4f46\u662f\u5728schema.sql\u6587\u4ef6\u4e2d\u5b9a\u4e49DDL\uff0c\u5728data.sql\u6587\u4ef6\u4e2d\u5b9a\u4e49DML\u3002<\/p>\n<blockquote><p>\u6ce8\u610f\u3002<br \/>\n${platform}\u53ef\u4ee5\u4f7f\u7528spring.datasource.platform\u5c5e\u6027\u8fdb\u884c\u6307\u5b9a\u3002<br \/>\n\u5728\u5355\u5143\u6d4b\u8bd5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528H2\uff0c\u5728\u96c6\u6210\u6d4b\u8bd5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528Postgresql\uff0c\u8fd9\u6837\u53ef\u4ee5\u7075\u6d3b\u5207\u6362\u3002<\/p><\/blockquote>\n<p>\u8fd9\u6b21\u6211\u4eec\u5c06\u521b\u5efaschema.sql\u5e76\u521b\u5efa\u8868\u683c\u3002<\/p>\n<p>\u4e3b\u8981\u8d44\u6e90\/\u6a21\u5f0f.sql<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">create<\/span> <span class=\"k\">table<\/span> <span class=\"n\">if<\/span> <span class=\"k\">not<\/span> <span class=\"k\">exists<\/span> <span class=\"n\">todo<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"n\">todo_id<\/span> <span class=\"k\">identity<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">todo_title<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">30<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"n\">finished<\/span> <span class=\"nb\">boolean<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">created_at<\/span> <span class=\"nb\">timestamp<\/span>\r\n<span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<h2>SpringBoot\u5f15\u5bfc\u6570\u636eJDBC<\/h2>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u4f7f\u7528Spring Boot\u548cSpring Data JDBC\u7684\u8d77\u59cb\u5668\u3002<br \/>\n\u8be6\u7ec6\u4fe1\u606f\u53ef\u4ee5\u53c2\u8003\u5f00\u53d1\u8005@kazuki43zoo\u7684\u6587\u7ae0\uff0c\u66f4\u63a8\u8350\u53bb\u770b\u4e00\u4e0bw\u3002<\/p>\n<p>\u901a\u8fc7\u4f7f\u7528Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u673a\u5236\uff0c\u53ef\u4ee5\u81ea\u52a8\u4e3aSpring Boot\u5e94\u7528\u7a0b\u5e8f\u5b9a\u4e49\u4f7f\u7528Spring Data JDBC\u7684Bean\u3002\u5f00\u53d1\u8005\u53ea\u9700\u5c06spring-boot-starter-data-jdbc\u6dfb\u52a0\u5230\u4f9d\u8d56\u5173\u7cfb\u4e2d\u5373\u53ef\u3002<\/p>\n<p>Pom.xml\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"nt\">&lt;dependencies&gt;<\/span>\r\n        <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n            <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.boot<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n            <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-boot-starter-data-jdbc<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n        <span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/dependencies&gt;<\/span>\r\n<\/code><\/pre>\n<p>src\/main\/java\/*\/Application.java\u7684\u4e2d\u6587\u672c\u5730\u5316\u7684\u91ca\u4e49\u5982\u4e0b\uff1a<\/p>\n<p>src\/main\/java\/*\/Application.java\u7684\u4e3b\u8981\u7c7b\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@SpringBootApplication<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Application<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">SpringApplication<\/span><span class=\"o\">.<\/span><span class=\"na\">run<\/span><span class=\"o\">(<\/span><span class=\"nc\">Application<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">,<\/span> <span class=\"n\">args<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e3b\u7c7b\u672a\u505a\u4efb\u4f55\u66f4\u6539\uff0c\u4ecd\u7136\u4fdd\u6301Spring Boot\u5e94\u7528\u7a0b\u5e8f\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u3002<\/p>\n<h3>\u9996\u5148\uff0cSpring Data JDBC \u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u63d0\u5230Spring\u7684\u6570\u636e\u5e93\u8bbf\u95ee\uff0c\u6211\u4eec\u901a\u5e38\u4f1a\u60f3\u5230Spring Data\u7684JdbcTemplate\u548cSpring Data JPA\uff0c\u800cSpring Data JDBC\u5219\u7c7b\u4f3c\u4e8e\u5c06\u8fd9\u4e24\u8005\u6df7\u5408\u8d77\u6765\u7684\u4e00\u79cd\u65b9\u6cd5\u3002<\/p>\n<p>\u4f7f\u7528\u7c7b\u4f3cSpring Data JPA\u7684\u8bed\u6cd5\u5b9a\u4e49Repository\u540e\uff0c\u5c06\u5229\u7528JdbcTemplate\uff08NamedParameterJdbcTemplate\uff09\u6267\u884cSQL\u8bed\u53e5\u3002<\/p>\n<p>\u4ee5\u4e0b\u662fSpring Data JDBC\u6240\u652f\u6301\u7684\u4e3b\u8981\u529f\u80fd\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">CRUD\u3092\u5b9f\u73fe\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306aAPI\u3092\u63d0\u4f9b\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>@Query\u3067\u30ab\u30b9\u30bf\u30e0\u30af\u30a8\u30ea\u3092\u5b9a\u7fa9\u3067\u304d\u308b<br \/>\nSQL\u5b9f\u884c\u524d\u5f8c\u306a\u3069\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u30a4\u30f3\u30bf\u30fc\u30bb\u30d7\u30c8\u3059\u308b<br \/>\nSpring Data JDBC\u3092\u7d4c\u7531\u3057\u3066MyBatis\u306eSQL\u3092\u5b9f\u884c\u3067\u304d\u308b -&gt; \u5225\u30a8\u30f3\u30c8\u30ea\u3067\uff01<br \/>\n\u3053\u308c\u3089\u3092Auto-Config\u3059\u308b<\/p>\n<p>\u4e0eSpring Data JPA\u76f8\u6bd4\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u660e\u663e\u7684\u533a\u522b\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ab\u30b9\u30bf\u30e0\u30af\u30a8\u30ea\u306fJPQL\u3067\u306f\u306a\u304fSQL\uff08NamedParameterJdbcTemplate\u306e\u6587\u6cd5\uff09\u3067\u5b9a\u7fa9\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Lazy Fetch\uff08\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\uff09\u306e\u3088\u3046\u306a\u6a5f\u80fd\u304c\u306a\u3044<\/ul>\n<h3>\u9886\u57df\u7c7b<\/h3>\n<p>\u5728\u7528\u4e8e\u6620\u5c04\u6570\u636e\u5e93\u6570\u636e\u7684\u9886\u57df\u7c7b\u4e0a\u6dfb\u52a0@ID\u4ee5\u8bc6\u522b\u4e3b\u952e\u3002\u4e3a\u4e86\u7701\u7565Getter\u548cSetter\u7684\u5b9e\u73b0\uff0c\u4ee5\u4e0b\u4f7f\u7528\u4e86Lombok\u7684@Data\u3002<\/p>\n<p>src\/main\/java\/*\/domain\/Todo.java \u7684\u4e2d\u6587\u91ca\u4e49\u662f\u4ec0\u4e48\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Data<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Todo<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Id<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">todoId<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">todoTitle<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"kt\">boolean<\/span> <span class=\"n\">finished<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">LocalDateTime<\/span> <span class=\"n\">createdAt<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<blockquote><p>\u6ce8\u610f\uff1a<br \/>\n\u5982\u679c\u8868\u540d\u548cDomain\u7c7b\u540d\u4e0d\u76f8\u540c\uff0c\u53ea\u9700\u8981\u5728\u7c7b\u4e0a\u6dfb\u52a0@Table(&#8220;\u8868\u540d&#8221;)\u5373\u53ef\u3002<\/p><\/blockquote>\n<h3>\u4ee3\u7801\u5e93\u63a5\u53e3<\/h3>\n<p>Spring\u7684Repository\u63a5\u53e3\u7ee7\u627f\u4e86Spring Data\u7684CrudRepository\u63a5\u53e3\u3002<\/p>\n<p>src\/main\/java\/*\/repository\/TodoRepository.java:<br \/>\nsrc\/main\/java\/*\/repository\/TodoRepository.java\u7684\u4f4d\u7f6e<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ (1)<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">interface<\/span> <span class=\"nc\">TodoRepository<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">CrudRepository<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Todo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">{<\/span>\r\n\r\n   <span class=\"c1\">\/\/ (2)<\/span>\r\n\r\n   <span class=\"c1\">\/\/ (3)<\/span>\r\n   <span class=\"nd\">@Query<\/span><span class=\"o\">(<\/span><span class=\"s\">\"SELECT COUNT(*) FROM todo WHERE finished = :finished\"<\/span><span class=\"o\">)<\/span>\r\n   <span class=\"kt\">long<\/span> <span class=\"nf\">countByFinished<\/span><span class=\"o\">(<\/span><span class=\"nd\">@Param<\/span><span class=\"o\">(<\/span><span class=\"s\">\"finished\"<\/span><span class=\"o\">)<\/span> <span class=\"kt\">boolean<\/span> <span class=\"n\">finished<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>(1) \u4ed3\u5e93\u63a5\u53e3\u7ee7\u627f\u4e86CrudRepository\u3002\u6cdb\u578b\u4e3a&lt;\u9886\u57df\u7c7b\u7684\u7c7b\u578b\uff0cID\u7684\u7c7b\u578b&gt;\u3002<\/p>\n<p>\u5f53\u7ee7\u627fCrudRepository\u65f6\uff0c\u5c06\u81ea\u52a8\u83b7\u5f97CRUD\u652f\u6301\u7684\u9ed8\u8ba4\u65b9\u6cd5\uff08\u67e5\u8be2\uff09\u3002\u901a\u8fc7\u67e5\u770bCrudRepository\u7684JavaDoc\u5373\u53ef\u4e86\u89e3\u63d0\u4f9b\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u5982\u679c\u8981\u5b9e\u73b0\u81ea\u5b9a\u4e49\u67e5\u8be2\uff0c\u53ef\u4ee5\u5728\u65b9\u6cd5\u4e0a\u6dfb\u52a0@Query\u6ce8\u89e3\u6765\u7f16\u5199SQL\u8bed\u53e5\u3002\u4f7f\u7528@Param\u6ce8\u89e3\u52a0\u5728\u53c2\u6570\u4e0a\uff0c\u53c2\u6570\u7684\u503c\u5c06\u88ab\u5d4c\u5165\u5230SQL\u8bed\u53e5\u4e2d\u7684:\u53c2\u6570\u540d\u4f4d\u7f6e\u3002\u8fd9\u6837\u975e\u5e38\u5bb9\u6613\u7406\u89e3\u5427\u3002<\/p>\n<blockquote><p>\u6ce8\u610f\uff1a<br \/>\n\u5728\u66f4\u65b0\u7c7b\u7684\u81ea\u5b9a\u4e49\u67e5\u8be2\u4e2d\uff0c\u9700\u8981\u4f7f\u7528@Query + @Modifying\u6807\u6ce8\u3002<\/p><\/blockquote>\n<h4>\u591a\u884c\u7684SQL.<\/h4>\n<p>\u5728\u4e0a\u9762\uff0c\u5c3d\u7ba1SQL\u5728\u4e00\u884c\u4e2d\u63d0\u5230\uff0c\u4f46\u662f\u7531\u4e8e\u53ef\u8bfb\u6027\u5dee\uff0c\u5efa\u8bae\u5c06\u5176\u5206\u6210\u591a\u884c\u8fdb\u884c\u7f16\u5199\u3002<br \/>\n\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5\u3002<\/p>\n<pre class=\"post-pre\"><code>   <span class=\"nd\">@Query<\/span><span class=\"o\">(<\/span><span class=\"s\">\"SELECT\"<\/span>\r\n           <span class=\"o\">+<\/span> <span class=\"s\">\" COUNT(*)\"<\/span>\r\n           <span class=\"o\">+<\/span> <span class=\"s\">\" FROM todo\"<\/span>\r\n           <span class=\"o\">+<\/span> <span class=\"s\">\" WHERE\"<\/span>\r\n           <span class=\"o\">+<\/span> <span class=\"s\">\" finished = :finished\"<\/span><span class=\"o\">)<\/span>\r\n   <span class=\"kt\">long<\/span> <span class=\"nf\">countByFinished<\/span><span class=\"o\">(<\/span><span class=\"nd\">@Param<\/span><span class=\"o\">(<\/span><span class=\"s\">\"finished\"<\/span><span class=\"o\">)<\/span> <span class=\"kt\">boolean<\/span> <span class=\"n\">finished<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h4>\u4e0d\u4f7f\u7528CRUD\u7684\u9ed8\u8ba4\u65b9\u6cd5\u65f6\u3002<\/h4>\n<p>\u5982\u679c\u8868\u7ed3\u6784\u590d\u6742\uff0c\u65e0\u6cd5\u4f7f\u7528\u8868\u7ea7\u522b\u7684CRUD\u64cd\u4f5c\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627fRepository\u63a5\u53e3\u6765\u66ff\u4ee3CrudRepository\u3002<\/p>\n<p>\u6309\u7167\u81ea\u5b9a\u4e49\u67e5\u8be2\u7684\u65b9\u5f0f\u5b9e\u73b0\uff0c\u6211\u4eec\u5c06\u5f00\u59cb\u5b9e\u73b0 @Query \u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">interface<\/span> <span class=\"nc\">TodoRepository<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Repository<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Todo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">{<\/span>\r\n\r\n   <span class=\"nd\">@Query<\/span><span class=\"o\">(<\/span><span class=\"s\">\"SELECT ...\"<\/span><span class=\"o\">)<\/span>\r\n   <span class=\"kt\">long<\/span> <span class=\"nf\">findAll<\/span><span class=\"o\">();<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h4>\u6267\u884cSQL\u52a8\u6001\u5316<\/h4>\n<p>\u5728Spring Data JDBC\u4e2d\uff0c\u4f3c\u4e4e\u4e0d\u652f\u6301\u52a8\u6001SQL\u7684\u6784\u5efa\u3002<br \/>\n\u867d\u7136Spring Data JPA\u7684CrudRepository\u63a5\u53e3\u5b9a\u4e49\u4e86\u53ef\u4ee5\u63a5\u6536Example\u53c2\u6570\u7684\u65b9\u6cd5\uff0c\u4f46\u5728Spring Data\u7684CrudRepository\u63a5\u53e3\u4e2d\u5e76\u6ca1\u6709\u5b9a\u4e49\uff0c\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<h2>\u6625\u5b63\u5f15\u5bfc\u5668\u6d4b\u8bd5<\/h2>\n<p>\u8fd9\u662f\u7528\u4e8e\u6d4b\u8bd5Spring Boot\u7684\u8d77\u59cb\u5668\u3002<\/p>\n<p>\u901a\u8fc7\u4f7f\u7528Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u673a\u5236\uff0c\u53ef\u4ee5\u81ea\u52a8\u5b8c\u6210\u7528\u4e8e\u6d4b\u8bd5Spring Boot\u5e94\u7528\u7684Bean\u5b9a\u4e49\u3002\u5f00\u53d1\u8005\u53ea\u9700\u6dfb\u52a0spring-boot-starter-test\u4f9d\u8d56\u5e76\u8fdb\u884c\u5c11\u91cf\u8bbe\u7f6e\u5373\u53ef\u3002<\/p>\n<p>pom.xml -&gt; \u9879\u76ee\u5bf9\u8c61\u6a21\u578b\u6587\u4ef6<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"nt\">&lt;dependencies&gt;<\/span>\r\n        <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n            <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.boot<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n            <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-boot-starter-test<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n            <span class=\"nt\">&lt;scope&gt;<\/span>test<span class=\"nt\">&lt;\/scope&gt;<\/span>\r\n        <span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/dependencies&gt;<\/span>\r\n<\/code><\/pre>\n<h3>JUnit \u6d4b\u8bd5\u7528\u4f8b<\/h3>\n<p>\u5728JUnit\u6d4b\u8bd5\u6848\u4f8b\u4e2d\uff0c\u53ea\u9700\u5728\u7c7b\u4e0a\u6dfb\u52a0@DataJdbcTest\u6ce8\u89e3\u5e76\u4f7f\u7528@Autowired\u6ce8\u5165\u76ee\u6807\u6d4b\u8bd5\u7684\u4ed3\u5e93\u5373\u53ef\u3002<\/p>\n<p>src\/test\/java\/*\/repository\/TodoRepositoryTest.java\u7684\u4e2d\u6587\u91ca\u4e49\u662f\u4ec0\u4e48\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@DataJdbcTest<\/span>\r\n<span class=\"nd\">@Transactional<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoRepositoryTest<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"nd\">@Autowired<\/span>\r\n    <span class=\"nc\">TodoRepository<\/span> <span class=\"n\">todoRepository<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"nd\">@Test<\/span>\r\n    <span class=\"nd\">@Sql<\/span><span class=\"o\">(<\/span><span class=\"n\">statements<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"INSERT INTO todo (todo_title, finished, created_at) VALUES ('sample todo', false, '2019-01-01')\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">testFindAll<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"c1\">\/\/ execute<\/span>\r\n        <span class=\"nc\">Iterable<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Todo<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">todos<\/span> <span class=\"o\">=<\/span> <span class=\"n\">todoRepository<\/span><span class=\"o\">.<\/span><span class=\"na\">findAll<\/span><span class=\"o\">();<\/span>\r\n\r\n        <span class=\"c1\">\/\/ assert<\/span>\r\n        <span class=\"n\">assertThat<\/span><span class=\"o\">(<\/span><span class=\"n\">todos<\/span><span class=\"o\">)<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">hasSize<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">)<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">extracting<\/span><span class=\"o\">(<\/span><span class=\"nl\">Todo:<\/span><span class=\"o\">:<\/span><span class=\"n\">getTodoTitle<\/span><span class=\"o\">,<\/span> <span class=\"nl\">Todo:<\/span><span class=\"o\">:<\/span><span class=\"n\">isFinished<\/span><span class=\"o\">,<\/span> <span class=\"nl\">Todo:<\/span><span class=\"o\">:<\/span><span class=\"n\">getCreatedAt<\/span><span class=\"o\">)<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">containsExactly<\/span><span class=\"o\">(<\/span><span class=\"n\">tuple<\/span><span class=\"o\">(<\/span><span class=\"s\">\"sample todo\"<\/span><span class=\"o\">,<\/span> <span class=\"kc\">false<\/span><span class=\"o\">,<\/span> <span class=\"nc\">LocalDate<\/span><span class=\"o\">.<\/span><span class=\"na\">of<\/span><span class=\"o\">(<\/span><span class=\"mi\">2019<\/span><span class=\"o\">,<\/span> <span class=\"mi\">1<\/span><span class=\"o\">,<\/span> <span class=\"mi\">1<\/span><span class=\"o\">).<\/span><span class=\"na\">atStartOfDay<\/span><span class=\"o\">()));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>@DataJdbcTest\u4f7f\u7528\u4e8eSpring Data JDBC\uff0c\u5b83\u4f1a\u81ea\u52a8\u4e3a\u60a8\u8fdb\u884cBean\u5b9a\u4e49\uff0c\u5305\u62ec\u7528\u4e8e\u8bbf\u95ee\u6570\u636e\u5e93\u7684DataSource\u7b49\u3002<\/p>\n<p>@DataJdbcTest\u6ca1\u6709\u81ea\u52a8\u6dfb\u52a0@Transactional\uff0c\u6240\u4ee5\u4e3a\u4e86\u5728\u6d4b\u8bd5\u7ed3\u675f\u540e\u8fdb\u884c\u56de\u6eda\uff0c\u9700\u8981\u81ea\u5df1\u6dfb\u52a0@Transactional\u3002\u800c@DataJpaTest\u5374\u53ef\u4ee5\u81ea\u52a8\u6dfb\u52a0\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\u5462&#8230;<\/p>\n<blockquote><p>\u6ce8\u610f:<br \/>\n\u4eceSpring Boot 2.2.2\u5f00\u59cb\uff0c@DataJdbcTest\u6ce8\u89e3\u4e2d\u4f1a\u81ea\u52a8\u6dfb\u52a0@Transactional\u6ce8\u89e3\u3002<\/p><\/blockquote>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u4f7f\u7528Spring Data JDBC\u7684starter\uff0c\u6211\u4eec\u53ef\u4ee5\u7701\u7565\u914d\u7f6e\u65b9\u9762\u7684\u7e41\u7410\u5de5\u4f5c\uff0c\u5c06\u91cd\u70b9\u653e\u5728Repository\u7684\u5b9e\u73b0\u4e0a\u3002<\/p>\n<p>\u5173\u4e8eSpring Data JDBC\u548cMyBatis\u7684\u96c6\u6210\uff0c\u8bf7\u53c2\u8003\u53e6\u4e00\u7bc7\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662fSpring Boot\u8425\u7cfb\u5217\u7684\u8bfe\u7a0b\uff0c\u4e3b\u9898\u662fSpring Boot + Spring Data JDBC\u3002  [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39578","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Spring Boot\u8bad\u7ec3\u8425\uff1aSpring Boot + Spring Data JDBC\u7248 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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