{"id":50231,"date":"2023-05-24T03:48:48","date_gmt":"2023-04-15T01:22:25","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9b%a0%e4%b8%ba%e8%a6%81%e5%9c%a8kotlin%e4%b8%ad%e4%bd%bf%e7%94%a8spring-data-cassandra%ef%bc%8c%e6%89%80%e4%bb%a5%e5%81%9a%e4%b8%aa%e5%a4%87%e5%bf%98%e5%bd%95%e3%80%82\/"},"modified":"2024-04-30T05:42:10","modified_gmt":"2024-04-29T21:42:10","slug":"%e5%9b%a0%e4%b8%ba%e8%a6%81%e5%9c%a8kotlin%e4%b8%ad%e4%bd%bf%e7%94%a8spring-data-cassandra%ef%bc%8c%e6%89%80%e4%bb%a5%e5%81%9a%e4%b8%aa%e5%a4%87%e5%bf%98%e5%bd%95%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9b%a0%e4%b8%ba%e8%a6%81%e5%9c%a8kotlin%e4%b8%ad%e4%bd%bf%e7%94%a8spring-data-cassandra%ef%bc%8c%e6%89%80%e4%bb%a5%e5%81%9a%e4%b8%aa%e5%a4%87%e5%bf%98%e5%bd%95%e3%80%82\/","title":{"rendered":"\u56e0\u4e3a\u8981\u5728Kotlin\u4e2d\u4f7f\u7528Spring Data Cassandra\uff0c\u6240\u4ee5\u505a\u4e2a\u5907\u5fd8\u5f55"},"content":{"rendered":"<p>\u9996\u5148\uff0c\u5c06\u8bd5\u9a8c\u7684\u7ed3\u679c\u8bb0\u5f55\u4e0b\u6765\u3002<\/p>\n<h1>Cassandra\u5b58\u50a8\u5e93<\/h1>\n<h2>\u53ea\u4f5c\u4e3a\u63a5\u53e3\u800c\u6ca1\u6709\u66f4\u65b0\u3002<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7d50\u5c40\u306f\u3001SpringData\u7cfb\u3063\u3066\u3001Rest\u3082Redis\u3082\u3000XXTemplate\u306b\u4f9d\u5b58\u3059\u308b\u5f62\u3067\u9032\u3081\u3089\u308c\u3066\u304a\u308a\u3001Cassandra\u3082\u4f8b\u306b\u3082\u308c\u305a CassandraTemplate\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u307f\u305f\u3044<\/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\">JpaRepository\u3092\u8aad\u3080\u3068\u3001save(T) \u6642\u306f\u3001entity\u306e\u5b58\u5728\u78ba\u8a8d\u3092\u3057\u3066\u3001persist\/merge\u3092\u4f7f\u3044\u5206\u3051\u3066\u3044\u308b\u304c\u3001CassandraRepository(\u6b63\u78ba\u306b\u306fSimpleCassandraRepository\u3067\u306f\u3001save\u6642\u306finsert\u3057\u304b\u3057\u3066\u3044\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>CqlTemplate\u3067\u8cc4\u3063\u3066\u3088\u304c\u5f53\u9762\u306a\u3093\u3060\u308d\u3046\u306a\u30fc<br \/>\nCassandra\u306e\u4f7f\u3044\u65b9\u6b21\u7b2c\u3060\u308d\u3046\u3051\u3069\u3001DELETE\/INSERT\u3067\u4eca\u306f\u4e8b\u8db3\u308a\u3066\u3044\u308b\u3051\u3069\u30c0\u30e1\u306a\u5834\u5408\u306f\u3001CassandraTemplate\u3092\u5f15\u3063\u5f35\u308a\u51fa\u305d\u3046<\/p>\n<h2>@Query\u65f6\uff0c\u65e0\u6cd5\u50cfJPA\u4e00\u6837\u505a\u51fa\u76f8\u540c\u7684\u6ce8\u91ca\u3002<\/h2>\n<p>\u5982\u679c\u5728Kotlin\u4e2d\u5b9e\u73b0\u4ee5\u4e0b\u7684 @Query\uff0c\u4f1a\u88ab\u6279\u8bc4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Repository<\/span>\r\n<span class=\"kd\">interface<\/span> <span class=\"nc\">MasterDao<\/span> <span class=\"p\">:<\/span> <span class=\"nc\">CassandraRepository<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">GenreMaster<\/span><span class=\"p\">,<\/span> <span class=\"nc\">String<\/span><span class=\"p\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n\r\n <span class=\"nd\">@Query<\/span><span class=\"p\">(<\/span><span class=\"s\">\"SELECT count(genreId) FROM t_genre x\"<\/span><span class=\"p\">)<\/span>\r\n <span class=\"k\">fun<\/span> <span class=\"nf\">countById<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">):<\/span> <span class=\"nc\">Integer<\/span>\r\n\r\n<span class=\"nc\">Caused<\/span> <span class=\"k\">by<\/span><span class=\"p\">:<\/span> <span class=\"n\">com<\/span><span class=\"p\">.<\/span><span class=\"n\">datastax<\/span><span class=\"p\">.<\/span><span class=\"n\">driver<\/span><span class=\"p\">.<\/span><span class=\"n\">core<\/span><span class=\"p\">.<\/span><span class=\"n\">exceptions<\/span><span class=\"p\">.<\/span><span class=\"nc\">SyntaxError<\/span><span class=\"p\">:<\/span> <span class=\"n\">line<\/span> <span class=\"mi\">1<\/span><span class=\"p\">:<\/span><span class=\"mi\">35<\/span> <span class=\"n\">no<\/span> <span class=\"n\">viable<\/span> <span class=\"n\">alternative<\/span> <span class=\"n\">at<\/span> <span class=\"n\">input<\/span> <span class=\"sc\">'x'<\/span> <span class=\"p\">(<\/span><span class=\"nc\">SELECT<\/span> <span class=\"nf\">count<\/span><span class=\"p\">(<\/span><span class=\"n\">genreId<\/span><span class=\"p\">)<\/span> <span class=\"nc\">FROM<\/span> <span class=\"p\">[<\/span><span class=\"n\">t_genre<\/span><span class=\"p\">]<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u9009\u62e9\u8fd9\u8fb9\u6ca1\u95ee\u9898<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Repository<\/span>\r\n<span class=\"kd\">interface<\/span> <span class=\"nc\">MasterDao<\/span> <span class=\"p\">:<\/span> <span class=\"nc\">CassandraRepository<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">GenreMaster<\/span><span class=\"p\">,<\/span> <span class=\"nc\">String<\/span><span class=\"p\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n\r\n <span class=\"nd\">@Query<\/span><span class=\"p\">(<\/span><span class=\"s\">\"SELECT count(genreId) FROM t_genre\"<\/span><span class=\"p\">)<\/span>\r\n <span class=\"k\">fun<\/span> <span class=\"nf\">countById<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">):<\/span> <span class=\"nc\">Integer<\/span>\r\n\r\n<\/code><\/pre>\n<h1>\u5bf9\u4e8e\u6b64\u4e8b\u7684\u4e2a\u4eba\u611f\u53d7 or \u5bf9\u6b64\u7684\u611f\u89c9<\/h1>\n<p>\u56e0\u4e3a\u6211\u5e0c\u671b\u4ee5\u540e\u80fd\u7ee7\u7eed\u4f7f\u7528ReactiveCassandraRepository\uff0c\u6240\u4ee5\u6211\u5728\u5c1d\u8bd5\u4f7f\u7528\u5b83\uff0c\u4f46\u5982\u679c\u6ca1\u6709\u7684\u8bdd\uff0c\u6211\u8fd8\u662f\u5e0c\u671b\u53ea\u7528Jpa\u6765\u8fdb\u884c\u5f00\u53d1\u3002<br \/>\n\u8003\u8651\u5230\u4e0espring-data-jpa\u7684\u517c\u5bb9\u6027\u4e0d\u592a\u597d\uff0c\u53ef\u80fd\u4f1a\u53d8\u5f97\u5f88\u9ebb\u70e6\u3002<br \/>\n\u5982\u679c\u4e0d\u8003\u8651Reactive\uff0c\u73b0\u5728\u53ef\u80fd\u8fd8\u4e0d\u4f7f\u7528\u5b83\u4f1a\u66f4\u597d\u5427\u3002<\/p>\n<p>\u6211\u4eec\u9700\u8981\u518d\u505a\u4e00\u4e9b\u8c03\u67e5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\uff0c\u5c06\u8bd5\u9a8c\u7684\u7ed3\u679c\u8bb0\u5f55\u4e0b\u6765\u3002 Cassandra\u5b58\u50a8\u5e93 \u53ea\u4f5c\u4e3a\u63a5\u53e3\u800c\u6ca1\u6709\u66f4\u65b0\u3002 \u7d50\u5c40\u306f\u3001SpringData\u7cfb [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50231","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>\u56e0\u4e3a\u8981\u5728Kotlin\u4e2d\u4f7f\u7528Spring Data Cassandra\uff0c\u6240\u4ee5\u505a\u4e2a\u5907\u5fd8\u5f55 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u56e0\u4e3a\u8981\u5728kotlin\u4e2d\u4f7f\u7528spring-data-cassandra\uff0c\u6240\u4ee5\u505a\u4e2a\u5907\u5fd8\u5f55\u3002\/\" \/>\n<meta property=\"og:locale\" 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