{"id":83,"date":"2025-03-20T19:56:53","date_gmt":"2025-03-20T11:56:53","guid":{"rendered":"http:\/\/www.xkai.site\/?p=83"},"modified":"2025-03-20T19:56:53","modified_gmt":"2025-03-20T11:56:53","slug":"%e5%a6%82%e4%bd%95%e5%86%99%e6%9c%80%e5%9f%ba%e7%a1%80%e7%9a%84crud","status":"publish","type":"post","link":"https:\/\/www.xkai.site\/index.php\/2025\/03\/20\/%e5%a6%82%e4%bd%95%e5%86%99%e6%9c%80%e5%9f%ba%e7%a1%80%e7%9a%84crud\/","title":{"rendered":"\u5982\u4f55\u5199\u6700\u57fa\u7840\u7684CRUD"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u672c\u6587\u57fa\u4e8eJava\uff0cSpringMVC\u6846\u67b6\u3002MVC\u5373Model+View+Controller\u3002\u5373\u4f7f\u4e0d\u592a\u786e\u5207\uff0c\u6211\u559c\u6b22\u5c06\u5176\u7406\u89e3\u4e3a\uff1a\u6d4f\u89c8\u5668\u4e0e\u6570\u636e\u5e93\u5efa\u7acb\u8054\u7cfb\u7684\u65b9\u5f0f\u3002\uff08Browser\u662f\u6d4f\u89c8\u5668\uff0cDB\u662f\u6570\u636e\u5e93\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"645\" height=\"445\" src=\"http:\/\/www.xkai.site\/wp-content\/uploads\/2025\/03\/Snipaste_2025-03-20_19-53-50.png\" alt=\"\" class=\"wp-image-84\" srcset=\"https:\/\/www.xkai.site\/wp-content\/uploads\/2025\/03\/Snipaste_2025-03-20_19-53-50.png 645w, https:\/\/www.xkai.site\/wp-content\/uploads\/2025\/03\/Snipaste_2025-03-20_19-53-50-300x207.png 300w\" sizes=\"auto, (max-width: 645px) 100vw, 645px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">Controller \u5c42<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63b0\u6536\u5e8f\u5217\u5316\u4fe1\u606f\uff08JSON\uff09<\/li>\n\n\n\n<li>\u901a\u8fc7\u6ce8\u89e3\u8fdb\u884c\u8f6c\u6362<\/li>\n\n\n\n<li>@RequestParam\uff08\u53ef\u9ed8\u8ba4\u4e0d\u5199\uff09 <br><code>@DeleteMapping <br>@ApiOperation(\"\u5220\u9664\u5206\u7c7b\") <br>public Result&lt;String> deleteById(Long id){} <br>\u67e5\u8be2\u5b57\u7b26\u4e32\u4f20\u9012id\u53c2\u6570\uff1a\/admin\/category?id=1<\/code><\/li>\n\n\n\n<li>@PathVariable\uff1a<br> <code>@DeleteMapping(\"\/{id}\")\/\/\u5d4c\u5165\u70b9 <\/code><br><code>@ApiOperation(\"\u5220\u9664\u5206\u7c7b\") <\/code><br><code>public Result&lt;String> deleteById(@PathVariable Long id){}<\/code> <br>\u4ec5\u5728URL\u540e\u5d4c\u5165\u53c2\u6570:<code>\/admin\/category\/1<\/code><\/li>\n\n\n\n<li>@RequestBody\uff1a\u53cd\u5e8f\u5217\u5316\u4e3a\u5b9e\u4f53\u7c7b <br><code>@PostMapping <\/code><br><code>@ApiOperation(\"\u65b0\u589e\u5206\u7c7b\") <\/code><br><code>public Result&lt;String> addCategory(@RequestBody Category category) { \/\/ \u4e1a\u52a1\u903b\u8f91 }<\/code><\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">Service \u5c42<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u6765\u8bf4\uff0cService\u770b\u6709\u6ca1\u6709\u63a5\u53e3\uff0c\u6709\u7684\u8bdd\u76f4\u63a5\u770bImpl\u5b9e\u73b0\u7c7b\u4f1a\u6bd4\u8f83\u5177\u4f53\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65b0\u589e\uff08Insert\uff09\uff1a \u9700\u8981\u5c06\u4e1a\u52a1\u4e2d\u7684\u5bf9\u8c61\u5c01\u88c5\u4e3a\u7a0b\u5e8f\u4e2d\u7684\u5b8c\u6574\u5b9e\u4f53\u7c7b\uff0c\u518d\u5bf9\u5e94\u6dfb\u52a0\u5b8c\u6574\u5b9e\u4f53\u7c7b\u4e2d\u5e94\u8be5\u6dfb\u52a0\u4f46\u4e1a\u52a1\u5bf9\u8c61\u7f3a\u5931\u7684\u90e8\u5206\uff08\u901a\u8fc7\u62f7\u8d1d+set\u65b9\u6cd5\uff09\uff0c\u597d\u5904\u662f\u53ef\u4ee5\u901a\u8fc7\u4e00\u6b21Mapper\u5c42\u7f16\u5199\u5b9e\u73b0\u4e0d\u540c\u65b0\u589e\u5bf9\u8c61\u7684\u6570\u636e\u64cd\u4f5c\u3002\uff08\u6570\u636e\u5b8c\u6574\u6027\/\u4e1a\u52a1\u9694\u79bb\/\u6613\u7ef4\u62a4\uff09 \u8bf4\u4eba\u8bdd\uff1a\u628a\u4e0d\u5065\u5168\u7684\u53d8\u5f97\u5065\u5168\uff0c\u8fd9\u6837\u65b9\u4fbf\u6570\u636e\u64cd\u4f5c\u65f6\u53ea\u7528\u5904\u7406\u5065\u5168\u7684\u4e00\u79cd\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>\u5220\u9664\uff08Delete\uff09\uff1a \u68c0\u67e5\u5220\u9664\u4e1a\u52a1\u662f\u5426\u5f71\u54cd\u5176\u4f59\u4e1a\u52a1\uff08\u8c03\u7528\u5176\u4ed6Mapper\uff09\uff0c\u518d\u8fdb\u884c\u5220\u9664\u5904\u7406<\/li>\n\n\n\n<li>\u66f4\u65b0\uff08Update\uff09\uff1a \u5904\u7406\u903b\u8f91\u4e0a\u4e0e\u65b0\u589e\u76f8\u540c\uff0c\u5c01\u88c5+\u586b\u5145\uff1b\u4f46Mapper\u5c42\u6709\u6240\u4e0d\u540c\uff0c\u4e00\u822c\u901a\u8fc7if\u5224\u65ad\u9700\u8981\u66f4\u65b0\u54ea\u4e9b\u6761\u4ef6\uff08\u5b9e\u9645\u4e0a\u601d\u60f3\u4e5f\u662f\u4e00\u81f4\u7684\uff0c\u5c06\u6240\u6709\u60c5\u51b5\u5047\u8bbe\u597d\u518d\u4f7f\u7528if\u4e0ewhere\u6392\u9664\uff0c\u53ea\u9700\u5199\u4e00\u6b21\uff09<\/li>\n\n\n\n<li>\u67e5\u8be2\uff08Select\uff09\uff1a Select\u7684\u4e1a\u52a1\u903b\u8f91\u5e76\u4e0d\u96be\uff0c\u660e\u786e\u597d\u8f93\u5165\u53c2\u6570\uff0c\u4ee5\u53ca\u8f93\u51fa\u7684\u662f\u53c2\u6570\/\u5bf9\u8c61\/\u5217\u8868\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">Mapper \u5c42<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65b0\u589e\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  Insert into \u8868\u540d(\u5b57\u6bb5\u540d1,\u5b57\u6bb5\u540d2......) VALUES (#{\u5bf9\u5e94\u5bf9\u5e94\u53c2\u65701},#{\u5bf9\u5e94\u5bf9\u5e94\u53c2\u65702}...)<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5220\u9664<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  Delete from \u8868\u540d where id = #{id}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a\u82e5\u662f\u5220\u9664\u67d0\u4e2a\u5c5e\u6027\uff0c\u5176\u5b9e\u662f\u901a\u8fc7update\u7684\u66f4\u65b0\u903b\u8f91\u53bb\u5b9e\u73b0\u7684<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u66f4\u65b0<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  Update \u8868\u540d \n  SET column_name1 = new_value1,\n      column_name2 = new_value2\n  WHERE condition;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u90e8\u5206\u4f1a\u5728xml\u8fdb\u884c\u64cd\u4f5c\uff0c\u66f4\u52a0\u89e3\u8026\u4e0e\u6613\u7ba1\u7406\uff0c\u56e0\u4e3a\u53ea\u9700\u5199\u4e00\u6b21<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67e5\u8be2<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  Select * from \u8868\u540d<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u662f\u5728xml\u4e2d\u64cd\u4f5c\uff0c\u9700\u8981\u660e\u786eparameterType\u548cresultType\u4f1a\u597d\u4e00\u4e9b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u57fa\u4e8eJava\uff0cSpringMVC\u6846\u67b6\u3002MVC\u5373Model+View+Controller\u3002\u5373\u4f7f\u4e0d\u592a\u786e\u5207\uff0c\u6211 &hellip; <a href=\"https:\/\/www.xkai.site\/index.php\/2025\/03\/20\/%e5%a6%82%e4%bd%95%e5%86%99%e6%9c%80%e5%9f%ba%e7%a1%80%e7%9a%84crud\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u5982\u4f55\u5199\u6700\u57fa\u7840\u7684CRUD<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,6],"tags":[],"class_list":["post-83","post","type-post","status-publish","format-standard","hentry","category-home-page","category-coding"],"_links":{"self":[{"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/posts\/83","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/comments?post=83"}],"version-history":[{"count":1,"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/posts\/83\/revisions"}],"predecessor-version":[{"id":85,"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/posts\/83\/revisions\/85"}],"wp:attachment":[{"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/media?parent=83"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/categories?post=83"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xkai.site\/index.php\/wp-json\/wp\/v2\/tags?post=83"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}