[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article-public-06Pduwwf":3,"public-project-articles-06Pduwwf":17},{"id":4,"uuid":5,"project_id":6,"title":7,"content":8,"type":9,"status":10,"public_enabled":10,"views":11,"sort":12,"created_at":13,"updated_at":14,"project_title":15,"project_slug":16},294,"06Pduwwf",46,"03. 开发系统公告功能（1）","## 创建数据库表 notice\n\n```sql\nCREATE TABLE `notice` (\n  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID',\n  `title` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '标题',\n  `content` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '内容',\n  `time` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '发布时间',\n  PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='系统公告';\n```\n\n## 开发SpringBoot的http接口\n\n开发查询接口（查询所有数据、根据ID查询单个数据、分页条件查询数据）、新增接口、更新接口、删除接口\n\n### 创建entity实体类\n\n实体类表示一个Java的类跟数据库表字段一一对应\n创建Notice类\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722223327068-50eccc2f-f520-4c55-a81c-dc6661ebf7bd.png#averageHue=%231f2024&clientId=u95b9bcf3-42b1-4&from=paste&height=127&id=u616cc5d6&originHeight=159&originWidth=506&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=19113&status=done&style=none&taskId=ufe4ec180-072b-413d-b2a8-730ad1fb5ac&title=&width=404.8)\n\n### 创建controller层NoticeController\n\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722224248875-772a871c-16a4-497a-b81e-8f524c9c2940.png#averageHue=%231f2023&clientId=u95b9bcf3-42b1-4&from=paste&height=448&id=ud1a4b11b&originHeight=560&originWidth=862&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=53145&status=done&style=none&taskId=u21b709ea-3717-4452-b722-10910fb25cd&title=&width=689.6)\n\n重启后端SpringBoot，然后再次访问数据\n\n### ![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722224632622-b3730ec4-1351-4408-a5de-57d113165491.png#averageHue=%23fbfbfb&clientId=u95b9bcf3-42b1-4&from=paste&height=247&id=w25vz&originHeight=309&originWidth=1246&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=22010&status=done&style=none&taskId=u26fff54c-1272-4489-b6e3-ec355544747&title=&width=996.8)\n\n### 创建Service，实现业务处理\n\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722225844123-20ae62ce-1ced-49bb-aaff-82c86dce20d5.png#averageHue=%231f2024&clientId=u95b9bcf3-42b1-4&from=paste&height=540&id=u5e672daa&originHeight=675&originWidth=750&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=60968&status=done&style=none&taskId=uf0854124-b94e-4e04-9b68-64e0c44dcfc&title=&width=600)\n\n### 创建mapper，实现数据库数据的访问\n\nmapper可以写sql\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722225423004-46b381ba-73b4-47b2-aa3f-c6e17f6d1b8b.png#averageHue=%231e2023&clientId=u95b9bcf3-42b1-4&from=paste&height=183&id=udd173305&originHeight=229&originWidth=602&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=20938&status=done&style=none&taskId=u829e0385-bf61-4482-bcba-271a14a6c52&title=&width=481.6)\n\n### 创建Mapper.xml，单独写sql\n\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722225572046-9ae68faa-ac64-468d-822f-1d5958d68c65.png#averageHue=%23232730&clientId=u95b9bcf3-42b1-4&from=paste&height=396&id=u4a6efe55&originHeight=495&originWidth=1411&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=79587&status=done&style=none&taskId=u58822a6c-1f78-4a8c-a473-bc2f0d45175&title=&width=1128.8)\n\n## 什么是JSON\n\n[https:\u002F\u002Fwww.runoob.com\u002Fjson\u002Fjson-tutorial.html](https:\u002F\u002Fwww.runoob.com\u002Fjson\u002Fjson-tutorial.html)\n\n## 遇到错误不要慌\n\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722224808473-bfa3d580-ebd3-4dcb-a233-126fa6922bf1.png#averageHue=%2323262b&clientId=u95b9bcf3-42b1-4&from=paste&height=601&id=uc79b56f4&originHeight=751&originWidth=1711&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=256357&status=done&style=none&taskId=u7d2f5a17-55fc-4a10-b875-96a0834845a&title=&width=1368.8)\n![image.png](https:\u002F\u002Fcdn.nlark.com\u002Fyuque\u002F0\u002F2024\u002Fpng\u002F751015\u002F1722224901980-f7f78ded-a5ec-4e09-b3c0-2eba7c093e5f.png#averageHue=%23212327&clientId=u95b9bcf3-42b1-4&from=paste&height=165&id=u257b392d&originHeight=206&originWidth=1787&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=44580&status=done&style=none&taskId=ue93c2ee7-4f51-4b11-bb2d-228befbf6ce&title=&width=1429.6)\n我们只需要看前面的几行，然后发现蛛丝马迹，一般情况下是你的sql写错了，你得根据提示找到你错误的sql，然后去修改\n\n","coding",1,2477,640,"2024-07-29 12:10:44","2026-05-03 22:49:02","SpringBoot3+Vue3的电影评论系统","movie-review",{"project":18,"items":19},{"id":6,"title":15,"slug":16},[20,27,34,35,42,49,56,63,70,77,84,91,98,105,112],{"id":21,"uuid":22,"project_id":6,"title":23,"type":9,"status":10,"public_enabled":10,"views":24,"sort":25,"created_at":26,"updated_at":14,"project_title":15,"project_slug":16},292,"kCgjr7mm","01. 电影评论系统介绍",4823,638,"2025-01-09 09:33:06",{"id":28,"uuid":29,"project_id":6,"title":30,"type":9,"status":10,"public_enabled":10,"views":31,"sort":32,"created_at":33,"updated_at":14,"project_title":15,"project_slug":16},293,"BlmKufUR","02. 导入并运行脚手架",3530,639,"2024-07-29 10:54:55",{"id":4,"uuid":5,"project_id":6,"title":7,"type":9,"status":10,"public_enabled":10,"views":11,"sort":12,"created_at":13,"updated_at":14,"project_title":15,"project_slug":16},{"id":36,"uuid":37,"project_id":6,"title":38,"type":9,"status":10,"public_enabled":10,"views":39,"sort":40,"created_at":41,"updated_at":14,"project_title":15,"project_slug":16},295,"Fdq2YYG6","04. 开发系统公告功能（2）",1703,647,"2024-07-30 11:50:26",{"id":43,"uuid":44,"project_id":6,"title":45,"type":9,"status":10,"public_enabled":10,"views":46,"sort":47,"created_at":48,"updated_at":14,"project_title":15,"project_slug":16},296,"GCaoVbnp","05. 开发系统公告功能（3）",1380,648,"2024-07-30 11:51:01",{"id":50,"uuid":51,"project_id":6,"title":52,"type":9,"status":10,"public_enabled":10,"views":53,"sort":54,"created_at":55,"updated_at":14,"project_title":15,"project_slug":16},297,"RSJvf6Eg","06. 开发系统公告功能（4）",1361,649,"2024-07-30 11:52:11",{"id":57,"uuid":58,"project_id":6,"title":59,"type":9,"status":10,"public_enabled":10,"views":60,"sort":61,"created_at":62,"updated_at":14,"project_title":15,"project_slug":16},298,"joADRMpg","07. 开发首页展示公告功能（时间线）",1332,650,"2024-07-30 11:52:49",{"id":64,"uuid":65,"project_id":6,"title":66,"type":9,"status":10,"public_enabled":10,"views":67,"sort":68,"created_at":69,"updated_at":14,"project_title":15,"project_slug":16},419,"Qus99gUh","08. 开发电影分类管理功能",1607,800,"2024-09-03 10:35:12",{"id":71,"uuid":72,"project_id":6,"title":73,"type":9,"status":10,"public_enabled":10,"views":74,"sort":75,"created_at":76,"updated_at":14,"project_title":15,"project_slug":16},420,"vkbZ8lMM","09. 开发电影信息管理",1761,801,"2024-09-03 10:35:48",{"id":78,"uuid":79,"project_id":6,"title":80,"type":9,"status":10,"public_enabled":10,"views":81,"sort":82,"created_at":83,"updated_at":14,"project_title":15,"project_slug":16},421,"ZwFHi9Ao","10. 开发电影评论管理功能",1514,802,"2024-09-03 11:39:45",{"id":85,"uuid":86,"project_id":6,"title":87,"type":9,"status":10,"public_enabled":10,"views":88,"sort":89,"created_at":90,"updated_at":14,"project_title":15,"project_slug":16},422,"DmVqZCwN","11. 开发用户管理功能",1171,806,"2024-09-04 11:01:37",{"id":92,"uuid":93,"project_id":6,"title":94,"type":9,"status":10,"public_enabled":10,"views":95,"sort":96,"created_at":97,"updated_at":14,"project_title":15,"project_slug":16},423,"rrMIV8oS","12. 开发用户视角的电影列表",1331,807,"2024-09-04 11:02:08",{"id":99,"uuid":100,"project_id":6,"title":101,"type":9,"status":10,"public_enabled":10,"views":102,"sort":103,"created_at":104,"updated_at":14,"project_title":15,"project_slug":16},424,"Q6ApfoCa","13. 开发电影详情页",1254,808,"2024-09-04 11:53:18",{"id":106,"uuid":107,"project_id":6,"title":108,"type":9,"status":10,"public_enabled":10,"views":109,"sort":110,"created_at":111,"updated_at":14,"project_title":15,"project_slug":16},425,"gjsxuriJ","14. 开发电影评论功能",1501,810,"2024-09-05 11:44:17",{"id":113,"uuid":114,"project_id":6,"title":115,"type":9,"status":10,"public_enabled":10,"views":116,"sort":117,"created_at":118,"updated_at":14,"project_title":15,"project_slug":16},426,"nCDmvc9n","15. 开发电影评分排行榜功能",1051,811,"2024-09-05 11:44:44"]