{"id":40158,"date":"2022-11-02T05:30:41","date_gmt":"2023-03-27T05:29:22","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8spring-boot%e5%92%8ckotlin%e5%85%a5%e9%97%a8datastore\/"},"modified":"2024-04-28T22:34:39","modified_gmt":"2024-04-28T14:34:39","slug":"%e4%bd%bf%e7%94%a8spring-boot%e5%92%8ckotlin%e5%85%a5%e9%97%a8datastore","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8spring-boot%e5%92%8ckotlin%e5%85%a5%e9%97%a8datastore\/","title":{"rendered":"\u4f7f\u7528Spring Boot\u548cKotlin\u5165\u95e8Datastore"},"content":{"rendered":"<p>\u6700\u8fd1\u6709\u6bb5\u65f6\u95f4\u5de5\u4f5c\u4e2d\u6ca1\u6709\u5199\u7a0b\u5e8f\uff0c\u6240\u4ee5\u6211\u6253\u7b97\u8d81\u73b0\u5728\u7684\u673a\u4f1a\uff0c\u7528spring-boot\u548ckotlin\u81ea\u5df1\u5236\u4f5c\u4e00\u4e2aAPI\u5e94\u7528\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u91cd\u65b0\u4ece\u6570\u636e\u5b58\u50a8\u7684\u6559\u7a0b\u5f00\u59cb\u5b66\u4e60\u3002<br \/>\n\u6211\u6b63\u5728\u4f7f\u7528\u7531Google\u5b98\u65b9\u63d0\u4f9b\u7684\u4ea4\u4e92\u5f0fCUI\u5e94\u7528\u7684\u6559\u7a0b\u3002<br \/>\n\u7531\u4e8e\u6559\u7a0b\u662f\u7528Java\u7f16\u5199\u7684\uff0c\u6240\u4ee5\u6211\u5728\u7528kotlin\u91cd\u5199\u5b83\u3002<\/p>\n<h5>\u25a0 \u6559\u7a0b<\/h5>\n<h1>\u73af\u5883<\/h1>\n<p>macOS Big Sur 11.1<br \/>\nIntellij Community 2020.3<br \/>\n\u5927\u897f\u6d0b\u5cb8\u7684\u82f9\u679c\u64cd\u4f5c\u7cfb\u7edf11.1\u7248<br \/>\nIntellij\u793e\u533a\u72482020.3<\/p>\n<h1>\u6559\u7a0b<\/h1>\n<p>\u4ee5\u4e0b\u662f\u8fdb\u884c\u6559\u7a0b\u7684\u6b65\u9aa4\uff0c\u4f46\u53ea\u9009\u62e9\u90e8\u5206\u66f4\u6539\u4e3aKotlin\u7684\u90e8\u5206\u3002<br \/>\n1. \u6982\u8ff0<br \/>\n2. \u8bbe\u7f6e\u548c\u8981\u6c42\uff08\u521b\u5efa\u548c\u8bbe\u7f6e\u9879\u76ee\uff09<br \/>\n3. \u521d\u59cb\u5316\u4e91\u6570\u636e\u5b58\u50a8\uff08\u521d\u59cb\u5316Datastore\uff09<br \/>\n4. \u51c6\u5907\u65b0\u7684Spring Boot Kotlin\u5e94\u7528\u7a0b\u5e8f\uff08\u521b\u5efaSpring Boot\u9879\u76ee\uff09<br \/>\n5. \u521b\u5efaBook\u7c7b\uff08\u521b\u5efaBook\u5b9e\u4f53\uff09<br \/>\n6. \u521b\u5efaBookRepository\u63a5\u53e3\uff08\u521b\u5efaBook\u5b9e\u4f53\u64cd\u4f5c\u7684Repository\uff09<br \/>\n7. \u521b\u5efa\u4ea4\u4e92\u5f0fCLI\u5e94\u7528\u7a0b\u5e8f\uff08\u521b\u5efaShell\u6267\u884c\u5904\u7406\uff09<br \/>\n8. \u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\uff08\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\uff09<br \/>\n9. \u4f7f\u7528Web\u754c\u9762\u67e5\u770b\u5b58\u50a8\u5728Datastore\u4e2d\u7684\u5185\u5bb9\uff08\u67e5\u770b\u5b58\u50a8\u5185\u5bb9\uff09<br \/>\n10. \u6e05\u7406\uff08\u6e05\u9664\uff09<br \/>\n11. \u606d\u559c\uff01<\/p>\n<h2>\u6559\u7a0b\u7684\u66f4\u6539\u70b9<\/h2>\n<h4>4. \u521b\u5efa\u4e00\u4e2a\u65b0\u7684Spring Boot Java\u5e94\u7528\u7a0b\u5e8f<\/h4>\n<p>\u56e0\u4e3a\u60f3\u8981\u4f7f\u7528Kotlin\uff0c\u6240\u4ee5\u4ece\u6559\u7a0b\u4e2d\u7684Spring Initializr\uff08https:\/\/start.spring.io\/\uff09\u9875\u9762\u4e0b\u8f7d\u4e86\u4ee5\u4e0b\u914d\u7f6e\u3002<br \/>\n\u6ca1\u6709\u7279\u522b\u7684\u8981\u6c42\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Project\uff1aGradle Project<\/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\">Language\uff1aKotlin<\/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\uff1a2.5.0<\/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\">Project Metadata\uff08Packaging\uff09\uff1aJar<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Project Metadata\uff08Java\uff09\uff1a11<\/ul>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Kobito.qq4G7P.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3f1037434c4406c8d220\/11-0.png\" alt=\"Kobito.qq4G7P.png\" \/><\/div>\n<p>\u5728\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Maven\uff0c\u4f46\u7531\u4e8e\u6211\u4eec\u7528Gradle\u521b\u5efa\u4e86\u9879\u76ee\uff0c\u6240\u4ee5\u6211\u4eec\u6b63\u5728\u66f4\u6539\u4f9d\u8d56\u914d\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nf\">dependencies<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nf\">implementation<\/span><span class=\"p\">(<\/span><span class=\"s\">\"org.springframework.cloud:spring-cloud-gcp-starter-data-datastore:1.2.6.RELEASE\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"nf\">implementation<\/span><span class=\"p\">(<\/span><span class=\"s\">\"org.springframework.shell:spring-shell-starter:2.0.0.RELEASE\"<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"nf\">implementation<\/span><span class=\"p\">(<\/span><span class=\"s\">\"org.jetbrains.kotlin:kotlin-reflect\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"nf\">implementation<\/span><span class=\"p\">(<\/span><span class=\"s\">\"org.jetbrains.kotlin:kotlin-stdlib-jdk8\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"nf\">testImplementation<\/span><span class=\"p\">(<\/span><span class=\"s\">\"org.springframework.boot:spring-boot-starter-test\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h4>\u521b\u5efaBook\u7c7b\uff08\u521b\u5efa\u56fe\u4e66\u7c7b\uff09<\/h4>\n<p>\u56e0\u4e3a\u6559\u7a0b\u7684\u4ee3\u7801\u662fJava\uff0c\u6240\u4ee5\u6211\u5c06\u5176\u6539\u5199\u4e3aKotlin\u3002<br \/>\n\u4ee3\u7801\u53d8\u5f97\u66f4\u77ed\uff0c\u66f4\u6613\u4e8e\u9605\u8bfb\uff0c\u771f\u4e0d\u9519\uff01<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">app.noz.ws.example.datastore<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.cloud.gcp.data.datastore.core.mapping.Entity<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.data.annotation.Id<\/span>\r\n\r\n<span class=\"nd\">@Entity<\/span><span class=\"p\">(<\/span><span class=\"n\">name<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"books\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">Book<\/span><span class=\"p\">(<\/span><span class=\"nd\">@Id<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">id<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Long<\/span><span class=\"p\">?<\/span> <span class=\"p\">=<\/span> <span class=\"k\">null<\/span><span class=\"p\">,<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">title<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">author<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">year<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"k\">override<\/span> <span class=\"k\">fun<\/span> <span class=\"nf\">toString<\/span><span class=\"p\">():<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"Book(id=$id, title='$title', author='$author', year=$year)\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h4>6. \u521b\u5efa BookRepository \u63a5\u53e3\uff08\u4f7f\u7528 Book \u5b9e\u4f53\u64cd\u4f5c\u5efa\u7acb Repository\uff09<\/h4>\n<p>\u7528Kotlin\u8fdb\u884c\u91cd\u5199\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">app.noz.ws.example.datastore<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.cloud.gcp.data.datastore.repository.DatastoreRepository<\/span>\r\n\r\n<span class=\"kd\">interface<\/span> <span class=\"nc\">BookRepository<\/span><span class=\"p\">:<\/span> <span class=\"nc\">DatastoreRepository<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">Book<\/span><span class=\"p\">,<\/span> <span class=\"nc\">Long<\/span><span class=\"p\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findByAuthor<\/span><span class=\"p\">(<\/span><span class=\"n\">author<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">):<\/span> <span class=\"nc\">List<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">Book<\/span><span class=\"p\">&gt;<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findByYearGreaterThan<\/span><span class=\"p\">(<\/span><span class=\"n\">year<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">):<\/span> <span class=\"nc\">List<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">Book<\/span><span class=\"p\">&gt;<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findByAuthorAndYear<\/span><span class=\"p\">(<\/span><span class=\"n\">author<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"n\">year<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">):<\/span> <span class=\"nc\">List<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">Book<\/span><span class=\"p\">&gt;<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h4>7. \u521b\u5efa\u4ea4\u4e92\u5f0f\u7684CLI\u5e94\u7528\u7a0b\u5e8f\uff08Shell\u6267\u884c\uff09<\/h4>\n<p>\u7528Kotlin\u8fdb\u884c\u91cd\u5199\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">app.noz.ws.example.datastore<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">com.google.common.collect.Lists<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.beans.factory.annotation.Autowired<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.boot.autoconfigure.SpringBootApplication<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.boot.runApplication<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.shell.standard.ShellComponent<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.shell.standard.ShellMethod<\/span>\r\n\r\n<span class=\"nd\">@ShellComponent<\/span>\r\n<span class=\"nd\">@SpringBootApplication<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">DatastoreApplication<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"nd\">@Autowired<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"k\">lateinit<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">bookRepository<\/span><span class=\"p\">:<\/span> <span class=\"nc\">BookRepository<\/span>\r\n\r\n    <span class=\"nd\">@ShellMethod<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Saves a book to Cloud Datastore: save-book &lt;title&gt; &lt;author&gt; &lt;year&gt;\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">saveBook<\/span><span class=\"p\">(<\/span><span class=\"n\">title<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"n\">author<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"n\">year<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">):<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">savedBook<\/span> <span class=\"p\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"n\">bookRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">save<\/span><span class=\"p\">(<\/span><span class=\"nc\">Book<\/span><span class=\"p\">(<\/span><span class=\"n\">title<\/span> <span class=\"p\">=<\/span> <span class=\"n\">title<\/span><span class=\"p\">,<\/span> <span class=\"n\">author<\/span> <span class=\"p\">=<\/span> <span class=\"n\">author<\/span><span class=\"p\">,<\/span> <span class=\"n\">year<\/span> <span class=\"p\">=<\/span> <span class=\"n\">year<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">savedBook<\/span><span class=\"p\">.<\/span><span class=\"nf\">toString<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@ShellMethod<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Loads all books\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findAllBooks<\/span><span class=\"p\">():<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">books<\/span> <span class=\"p\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"n\">bookRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">findAll<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">Lists<\/span><span class=\"p\">.<\/span><span class=\"nf\">newArrayList<\/span><span class=\"p\">(<\/span><span class=\"n\">books<\/span><span class=\"p\">).<\/span><span class=\"nf\">toString<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@ShellMethod<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Loads books by author: find-by-author &lt;author&gt;\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findByAuthor<\/span><span class=\"p\">(<\/span><span class=\"n\">author<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">):<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">books<\/span> <span class=\"p\">=<\/span> <span class=\"n\">bookRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">findByAuthor<\/span><span class=\"p\">(<\/span><span class=\"n\">author<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">books<\/span><span class=\"p\">.<\/span><span class=\"nf\">toString<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@ShellMethod<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Loads books published after a given year: find-by-year-after &lt;year&gt;\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findByYearAfter<\/span><span class=\"p\">(<\/span><span class=\"n\">year<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">):<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">books<\/span> <span class=\"p\">=<\/span> <span class=\"n\">bookRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">findByYearGreaterThan<\/span><span class=\"p\">(<\/span><span class=\"n\">year<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">books<\/span><span class=\"p\">.<\/span><span class=\"nf\">toString<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@ShellMethod<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Loads books by author and year: find-by-author-year &lt;author&gt; &lt;year&gt;\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">findByAuthorYear<\/span><span class=\"p\">(<\/span><span class=\"n\">author<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"n\">year<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">):<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">books<\/span> <span class=\"p\">=<\/span> <span class=\"n\">bookRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">findByAuthorAndYear<\/span><span class=\"p\">(<\/span><span class=\"n\">author<\/span><span class=\"p\">,<\/span> <span class=\"n\">year<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">books<\/span><span class=\"p\">.<\/span><span class=\"nf\">toString<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@ShellMethod<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Removes all books\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">removeAllBooks<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">bookRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">deleteAll<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fun<\/span> <span class=\"nf\">main<\/span><span class=\"p\">(<\/span><span class=\"n\">args<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Array<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"p\">&gt;)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">runApplication<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">DatastoreApplication<\/span><span class=\"p\">&gt;(*<\/span><span class=\"n\">args<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h4>8. \u8fd0\u884c\u8be5\u5e94\u7528\u7a0b\u5e8f<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Kobito.LMW6H5.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3f1037434c4406c8d220\/24-0.png\" alt=\"Kobito.LMW6H5.png\" \/><\/div>\n<pre class=\"post-pre\"><code>  .   ____          _            __ _ _\r\n \/\\\\ \/ ___'_ __ _ _(_)_ __  __ _ \\ \\ \\ \\\r\n( ( )\\___ | '_ | '_| | '_ \\\/ _` | \\ \\ \\ \\\r\n \\\\\/  ___)| |_)| | | | | || (_| |  ) ) ) )\r\n  '  |____| .__|_| |_|_| |_\\__, | \/ \/ \/ \/\r\n =========|_|==============|___\/=\/_\/_\/_\/\r\n :: Spring Boot ::       (v2.5.0-SNAPSHOT)\r\n\r\n2021-01-16 13:47:39.282  INFO 78351 --- [           main] a.n.w.e.d.DatastoreApplicationKt         : Starting DatastoreApplicationKt using Java 14.0.1 on MacBook-Pro.local with PID 78351 (\/Users\/yasu\/Downloads\/datastore\/build\/classes\/kotlin\/main started by yasu in \/Users\/yasu\/Downloads\/datastore)\r\n2021-01-16 13:47:39.285  INFO 78351 --- [           main] a.n.w.e.d.DatastoreApplicationKt         : No active profile set, falling back to default profiles: default\r\n2021-01-16 13:47:40.118  INFO 78351 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Datastore repositories in DEFAULT mode.\r\n2021-01-16 13:47:40.175  INFO 78351 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 53 ms. Found 1 Datastore repository interfaces.\r\n2021-01-16 13:47:40.767  INFO 78351 --- [           main] o.s.c.g.a.c.GcpContextAutoConfiguration  : The default project ID is api-test-300213\r\n2021-01-16 13:47:40.845  INFO 78351 --- [           main] o.s.c.g.core.DefaultCredentialsProvider  : Default credentials provider for service account todo-test@api-test-300213.iam.gserviceaccount.com\r\n2021-01-16 13:47:40.846  INFO 78351 --- [           main] o.s.c.g.core.DefaultCredentialsProvider  : Scopes in use by default credentials: [https:\/\/www.googleapis.com\/auth\/pubsub, https:\/\/www.googleapis.com\/auth\/spanner.admin, https:\/\/www.googleapis.com\/auth\/spanner.data, https:\/\/www.googleapis.com\/auth\/datastore, https:\/\/www.googleapis.com\/auth\/sqlservice.admin, https:\/\/www.googleapis.com\/auth\/devstorage.read_only, https:\/\/www.googleapis.com\/auth\/devstorage.read_write, https:\/\/www.googleapis.com\/auth\/cloudruntimeconfig, https:\/\/www.googleapis.com\/auth\/trace.append, https:\/\/www.googleapis.com\/auth\/cloud-platform, https:\/\/www.googleapis.com\/auth\/cloud-vision, https:\/\/www.googleapis.com\/auth\/bigquery, https:\/\/www.googleapis.com\/auth\/monitoring.write]\r\n2021-01-16 13:47:42.777  WARN 78351 --- [           main] org.jline                                : Unable to create a system terminal, creating a dumb terminal (enable debug logging for more information)\r\n2021-01-16 13:47:42.937  INFO 78351 --- [           main] a.n.w.e.d.DatastoreApplicationKt         : Started DatastoreApplicationKt in 4.112 seconds (JVM running for 5.038)\r\nshell:&gt;\r\n<\/code><\/pre>\n<h5>\u6267\u884c Help \u547d\u4ee4\u3002<\/h5>\n<pre class=\"post-pre\"><code>shell:&gt;help\r\nAVAILABLE COMMANDS\r\n\r\nBuilt-In Commands\r\n        clear: Clear the shell screen.\r\n        exit, quit: Exit the shell.\r\n        help: Display help about available commands.\r\n        script: Read and execute commands from a file.\r\n        stacktrace: Display the full stacktrace of the last error.\r\n\r\nDatastore Application\r\n        find-all-books: Loads all books\r\n        find-by-author: Loads books by author: find-by-author &lt;author&gt;\r\n        find-by-author-year: Loads books by author and year: find-by-author-year &lt;author&gt; &lt;year&gt;\r\n        find-by-year-after: Loads books published after a given year: find-by-year-after &lt;year&gt;\r\n        remove-all-books: Removes all books\r\n        save-book: Saves a book to Cloud Datastore: save-book &lt;title&gt; &lt;author&gt; &lt;year&gt;\r\n<\/code><\/pre>\n<h5>\u6ce8\u518c\u548c\u663e\u793a<\/h5>\n<p>\u5728\u6ce8\u518c\u4e86\u4e24\u4e2a\u540e\uff0c\u83b7\u53d6\u6240\u6709\u7684\u8bb0\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code>shell:&gt;save-book test1 author1 2021\r\nBook(id=5644004762845184, title='test1', author='author1', year=2021)\r\nshell:&gt;save-book test2 author2 2021\r\nBook(id=5632499082330112, title='test2', author='author2', year=2021)\r\nshell:&gt;find-all-books\r\n[Book(id=5632499082330112, title='test2', author='author2', year=2021), Book(id=5644004762845184, title='test1', author='author1', year=2021)]\r\n<\/code><\/pre>\n<h4>9. \u901a\u8fc7Web\u754c\u9762\u67e5\u770bDatastore\u4e2d\u5b58\u50a8\u7684\u5185\u5bb9\u3002<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Kobito.0q51nT.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3f1037434c4406c8d220\/32-0.png\" alt=\"Kobito.0q51nT.png\" \/><\/div>\n<h4>10. \u6e05\u7406<\/h4>\n<p>\u5220\u9664\u540e\uff0c\u901a\u8fc7\u547d\u4ee4\u548c\u7f51\u9875\u8fdb\u884c\u786e\u8ba4\uff0c\u6570\u636e\u786e\u5b9e\u88ab\u5220\u9664\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code>shell:&gt;remove-all-books\r\nshell:&gt;find-all-books\r\n[]\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Kobito.lbj2IN.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3f1037434c4406c8d220\/36-0.png\" alt=\"Kobito.lbj2IN.png\" \/><\/div>\n<h2>\u5f53\u4f7f\u7528Gradle\u547d\u4ee4\u6267\u884c\u65f6\u51fa\u73b0\u6545\u969c\u3002<\/h2>\n<p>\u5982\u679c\u4f7f\u7528Gradle\u547d\u4ee4\u6267\u884c&#8221; .\/gradlew bootRun &#8220;\uff0c\u5219\u59cb\u7ec8\u4f1a\u8f93\u51fa&#8221;EXECUTING [16s]&#8221;\uff0c\u4ea4\u4e92\u6027\u547d\u4ee4\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002\u867d\u7136\u53ef\u6267\u884c\uff0c\u4f46\u663e\u793a\u7ed3\u679c\u975e\u5e38\u6df7\u4e71\u3002\u5982\u679c\u6709\u4eba\u77e5\u9053\u539f\u56e0\uff0c\u8bf7\u544a\u8bc9\u6211\uff0c\u8c22\u8c22 m(_ _)m<\/p>\n<pre class=\"post-pre\"><code>% .\/gradlew bootRun\r\n\r\n&gt; Task :bootRun\r\n\r\n  .   ____          _            __ _ _\r\n \/\\\\ \/ ___'_ __ _ _(_)_ __  __ _ \\ \\ \\ \\\r\n( ( )\\___ | '_ | '_| | '_ \\\/ _` | \\ \\ \\ \\\r\n \\\\\/  ___)| |_)| | | | | || (_| |  ) ) ) )\r\n  '  |____| .__|_| |_|_| |_\\__, | \/ \/ \/ \/\r\n =========|_|==============|___\/=\/_\/_\/_\/\r\n :: Spring Boot ::       (v2.5.0-SNAPSHOT)\r\n\r\n2021-01-16 13:56:59.649  INFO 78536 --- [           main] a.n.w.e.d.DatastoreApplicationKt         : Starting DatastoreApplicationKt using Java 14.0.1 on MacBook-Pro.local with PID 78536 (\/Users\/yasu\/Downloads\/datastore\/build\/classes\/kotlin\/main started by yasu in \/Users\/yasu\/Downloads\/datastore)\r\n2021-01-16 13:56:59.651  INFO 78536 --- [           main] a.n.w.e.d.DatastoreApplicationKt         : No active profile set, falling back to default profiles: default\r\n2021-01-16 13:57:00.140  INFO 78536 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Datastore repositories in DEFAULT mode.\r\n2021-01-16 13:57:00.184  INFO 78536 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 39 ms. Found 1 Datastore repository interfaces.\r\n2021-01-16 13:57:00.587  INFO 78536 --- [           main] o.s.c.g.a.c.GcpContextAutoConfiguration  : The default project ID is api-test-300213\r\n2021-01-16 13:57:00.632  INFO 78536 --- [           main] o.s.c.g.core.DefaultCredentialsProvider  : Default credentials provider for service account todo-test@api-test-300213.iam.gserviceaccount.com\r\n2021-01-16 13:57:00.632  INFO 78536 --- [           main] o.s.c.g.core.DefaultCredentialsProvider  : Scopes in use by default credentials: [https:\/\/www.googleapis.com\/auth\/pubsub, https:\/\/www.googleapis.com\/auth\/spanner.admin, https:\/\/www.googleapis.com\/auth\/spanner.data, https:\/\/www.googleapis.com\/auth\/datastore, https:\/\/www.googleapis.com\/auth\/sqlservice.admin, https:\/\/www.googleapis.com\/auth\/devstorage.read_only, https:\/\/www.googleapis.com\/auth\/devstorage.read_write, https:\/\/www.googleapis.com\/auth\/cloudruntimeconfig, https:\/\/www.googleapis.com\/auth\/trace.append, https:\/\/www.googleapis.com\/auth\/cloud-platform, https:\/\/www.googleapis.com\/auth\/cloud-vision, https:\/\/www.googleapis.com\/auth\/bigquery, https:\/\/www.googleapis.com\/auth\/monitoring.write]\r\n2021-01-16 13:57:02.198  WARN 78536 --- [           main] org.jline                                : Unable to create a system terminal, creating a dumb terminal (enable debug logging for more information)\r\n2021-01-16 13:57:02.311  INFO 78536 --- [           main] a.n.w.e.d.DatastoreApplicationKt         : Started DatastoreApplicationKt in 3.019 seconds (JVM running for 3.525)\r\nshell:&gt;Run\r\n&lt;==========---&gt; 83% EXECUTING [16s] \u2190 \u3053\u308c\uff01\uff01\uff1f\r\n&gt; :bootRun\r\n<\/code><\/pre>\n<h1>\u6700\u7ec8<\/h1>\n<p>\u6211\u901a\u8fc7\u6559\u7a0b\u8fdb\u884c\u5b9e\u8df5\uff0c\u53d1\u73b0\u6bd4\u6211\u60f3\u8c61\u4e2d\u66f4\u7b80\u5355\uff0c\u4f46\u662f\u7531\u4e8e Kotlin \u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\u592a\u8fc7\u964c\u751f\uff0c\u6240\u4ee5\u82b1\u8d39\u7684\u65f6\u95f4\u6bd4\u9884\u671f\u7684\u591a\u3002\u6211\u6253\u7b97\u4f7f\u7528 spring-boot\/kotlin\/datastore \u6765\u5236\u4f5c API\uff0c\u5e76\u4e14\u5982\u679c\u6709\u4f59\u529b\u7684\u8bdd\uff0c\u6211\u8fd8\u60f3\u5728 Qiita \u4e0a\u53d1\u5e03\u3002<\/p>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5e76\u4e0d\u662f\u5f88\u91cd\u8981\uff0c\u4f46\u662f\u6211\u8fd8\u662f\u4f1a\u5c06\u6e90\u4ee3\u7801\u4e0a\u4f20\u5230 GitHub \u4e0a\u3002<br \/>\nhttps:\/\/github.com\/ynozue\/DatasotreSample_kotlin<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u6709\u6bb5\u65f6\u95f4\u5de5\u4f5c\u4e2d\u6ca1\u6709\u5199\u7a0b\u5e8f\uff0c\u6240\u4ee5\u6211\u6253\u7b97\u8d81\u73b0\u5728\u7684\u673a\u4f1a\uff0c\u7528spring-boot\u548ckotlin\u81ea\u5df1\u5236\u4f5c\u4e00\u4e2aAPI [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-40158","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) - 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