{"id":4047,"date":"2024-08-22T10:13:08","date_gmt":"2024-08-22T02:13:08","guid":{"rendered":"https:\/\/qaqaq.top\/?p=4047"},"modified":"2024-08-26T19:59:54","modified_gmt":"2024-08-26T11:59:54","slug":"mybatis-plus%e5%a4%9a%e6%95%b0%e6%8d%ae%e6%ba%90","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=4047","title":{"rendered":"MyBatis-Plus\u591a\u6570\u636e\u6e90"},"content":{"rendered":"\n<p>\u9002\u7528\u4e8e\u591a\u79cd\u573a\u666f\uff1a\u7eaf\u7cb9\u591a\u5e93\u3001 \u8bfb\u5199\u5206\u79bb\u3001 \u4e00\u4e3b\u591a\u4ece\u3001 \u6df7\u5408\u6a21\u5f0f\u7b49<\/p>\n\n\n\n<p>\u76ee\u524d\u6765\u6a21\u62df\u4e00\u4e2a\u7eaf\u7cb9\u591a\u5e93\u7684\u4e00\u4e2a\u573a\u666f\uff0c\u5176\u4ed6\u573a\u666f\u7c7b\u4f3c<\/p>\n\n\n\n<p>\u573a\u666f\u8bf4\u660e\uff1a<br>\u521b\u5efa\u4e24\u4e2a\u5e93\uff0c\u5206\u522b\u4e3a\uff1astudy\uff08\u4ee5\u524d\u7684\u5e93\u4e0d\u52a8\uff09\u4e0estudy_1\uff08\u65b0\u5efa\uff09\uff0c\u5c06<br>study\u5e93\u7684t_product\u8868\u79fb\u52a8\u5230study_1\u5e93\uff0c\u8fd9\u6837\u6bcf\u4e2a\u5e93\u4e00\u5f20\u8868\uff0c\u901a\u8fc7\u4e00\u4e2a\u6d4b\u8bd5\u7528\u4f8b<br>\u5206\u522b\u83b7\u53d6\u7528\u6237\u6570\u636e\u4e0e\u5546\u54c1\u6570\u636e\uff0c\u5982\u679c\u83b7\u53d6\u5230\u8bf4\u660e\u591a\u5e93\u6a21\u62df\u6210\u529f<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1\u3001\u521b\u5efa\u6570\u636e\u5e93\u53ca\u8868<\/h2>\n\n\n\n<p>\u521b\u5efa\u6570\u636e\u5e93study_1\u548c\u8868t_product<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE DATABASE `study_1` \/*!40100 DEFAULT CHARACTER SET utf8mb4 *\/;\n\nuse `study_1`;\n\nCREATE TABLE t_product\n(\nid BIGINT(20) NOT NULL COMMENT '\u4e3b\u952eID',\nname VARCHAR(30) NULL DEFAULT NULL COMMENT '\u5546\u54c1\u540d\u79f0',\nprice INT(11) DEFAULT 0 COMMENT '\u4ef7\u683c',\nversion INT(11) DEFAULT 0 COMMENT '\u4e50\u89c2\u9501\u7248\u672c\u53f7',\nPRIMARY KEY (id)\n);<\/code><\/pre>\n\n\n\n<p>\u6dfb\u52a0\u6d4b\u8bd5\u6570\u636e<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>INSERT INTO t_product (id, NAME, price) VALUES (1, '\u5916\u661f\u4eba\u7b14\u8bb0\u672c', 100);<\/code><\/pre>\n\n\n\n<p>\u5220\u9664study\u5e93t_product\u8868<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>use study;\nDROP TABLE IF EXISTS t_product;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">2\u3001\u5f15\u5165\u4f9d\u8d56\uff0c\u5efa\u8bae\u5efa\u4e2a\u65b0\u9879\u76ee<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>        &lt;!--mybatis-plus\u542f\u52a8\u5668-->\n        &lt;dependency>\n            &lt;groupId>com.baomidou&lt;\/groupId>\n            &lt;artifactId>mybatis-plus-spring-boot3-starter&lt;\/artifactId>\n            &lt;version>3.5.7&lt;\/version>\n        &lt;\/dependency>\n        &lt;!--lombok\u7528\u4e8e\u7b80\u5316\u5b9e\u4f53\u7c7b\u5f00\u53d1-->\n        &lt;dependency>\n            &lt;groupId>org.projectlombok&lt;\/groupId>\n            &lt;artifactId>lombok&lt;\/artifactId>\n            &lt;version>1.18.32&lt;\/version>\n            &lt;scope>provided&lt;\/scope>\n        &lt;\/dependency>\n        &lt;!--mysql\u9a71\u52a8-->\n        &lt;dependency>\n            &lt;groupId>com.mysql&lt;\/groupId>\n            &lt;artifactId>mysql-connector-j&lt;\/artifactId>\n            &lt;version>8.2.0&lt;\/version>\n        &lt;\/dependency>\n\n        &lt;dependency>\n            &lt;groupId>com.baomidou&lt;\/groupId>\n            &lt;artifactId>dynamic-datasource-spring-boot3-starter&lt;\/artifactId>\n            &lt;version>4.3.1&lt;\/version>\n        &lt;\/dependency><\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">3\u3001\u914d\u7f6e\u591a\u6570\u636e\u6e90<\/h2>\n\n\n\n<p>\u8bf4\u660e\uff1a\u6ce8\u91ca\u6389\u4e4b\u524d\u7684\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u6dfb\u52a0\u65b0\u914d\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u5efa\u4e2a\u65b0\u9879\u76ee<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>spring:\n  # \u914d\u7f6e\u6570\u636e\u6e90\u4fe1\u606f\n  datasource:\n    dynamic:\n      # \u8bbe\u7f6e\u9ed8\u8ba4\u7684\u6570\u636e\u6e90\u6216\u8005\u6570\u636e\u6e90\u7ec4,\u9ed8\u8ba4\u503c\u5373\u4e3amaster\n      primary: master\n      # \u4e25\u683c\u5339\u914d\u6570\u636e\u6e90,\u9ed8\u8ba4false.true\u672a\u5339\u914d\u5230\u6307\u5b9a\u6570\u636e\u6e90\u65f6\u629b\u5f02\u5e38,false\u4f7f\u7528\u9ed8\u8ba4\u6570\u636e\u6e90\n      strict: false\n      datasource:\n        master:\n          url: jdbc:mysql:\/\/localhost:3306\/study?serverTimezone=GMT%2B8&amp;characterEncoding=utf-8&amp;useSSL=false\n          username: root\n          password: \n          driver-class-name: com.mysql.cj.jdbc.Driver\n        slave_1:\n          url: jdbc:mysql:\/\/localhost:3306\/study_1?serverTimezone=GMT%2B8&amp;characterEncoding=utf-8&amp;useSSL=false\n          username: root\n          password: \n          driver-class-name: com.mysql.cj.jdbc.Driver<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">4\u3001\u521b\u5efa\u7528\u6237service<\/h2>\n\n\n\n<p>User<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Data\n@TableName(\"t_user\")\npublic class User {\n\n    @TableId\n    private Integer uid;\n\n    private String userName;\n\n    private Integer age;\n\n    private Integer sex;\n\n    private String email;\n\n    private Integer isDeleted;\n\n}<\/code><\/pre>\n\n\n\n<p>UserMapper<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Repository<br>public interface UserMapper extends BaseMapper&lt;User&gt; {<br>}<\/code><\/pre>\n\n\n\n<p>UserService<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public interface UserService extends IService&lt;User> {\n}<\/code><\/pre>\n\n\n\n<p>UserServiceImpl<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Service\n@DS(\"master\")\npublic class UserServiceImpl extends ServiceImpl&lt;UserMapper, User> implements UserService {\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">5\u3001\u521b\u5efa\u5546\u54c1service<\/h2>\n\n\n\n<p>Product<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Data\n@TableName(\"t_product\")\npublic class Product {\n\n    private Integer id;\n\n    private String name;\n\n    private Integer price;\n\n    private Integer version;\n\n}<\/code><\/pre>\n\n\n\n<p>ProductMapper<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Repository\npublic interface ProductMapper extends BaseMapper&lt;Product> {\n}<\/code><\/pre>\n\n\n\n<p>ProductService<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public interface ProductService extends IService&lt;Product> {\n}<\/code><\/pre>\n\n\n\n<p>ProductServiceImpl<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Service\n@DS(\"slave_1\")\npublic class ProductServiceImpl extends ServiceImpl&lt;ProductMapper, Product> implements ProductService {\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">6\u3001\u542f\u52a8\u7c7b\u626b\u63cfmapper\u5305<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>@SpringBootApplication\n@MapperScan(\"top.qaqaq.mybatisplus.mapper\")\npublic class MybatisplusDatasourceApplication {\n\n    public static void main(String&#91;] args) {\n        SpringApplication.run(MybatisplusDatasourceApplication.class, args);\n    }\n\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">7\u3001\u6d4b\u8bd5<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>@Autowired<br>private UserService userService;<br><br>@Autowired<br>private ProductService productService;<br><br>@Test<br>public void test() {<br>    System.<em>out<\/em>.println(userService.getById(1));<br>    System.<em>out<\/em>.println(productService.getById(1));<br>}<\/code><\/pre>\n\n\n\n<p>\u7ed3\u679c\uff1a<\/p>\n\n\n\n<p>1\u3001\u90fd\u80fd\u987a\u5229\u83b7\u53d6\u5bf9\u8c61\uff0c\u5219\u6d4b\u8bd5\u6210\u529f<br>2\u3001\u5982\u679c\u6211\u4eec\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\uff0c\u5c06\u5199\u64cd\u4f5c\u65b9\u6cd5\u52a0\u4e0a\u4e3b\u5e93\u6570\u636e\u6e90\uff0c\u8bfb\u64cd\u4f5c\u65b9\u6cd5\u52a0\u4e0a\u4ece\u5e93\u6570\u636e\u6e90\uff0c\u81ea\u52a8\u5207<br>\u6362\uff0c\u662f\u4e0d\u662f\u5c31\u80fd\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9002\u7528\u4e8e\u591a\u79cd\u573a\u666f\uff1a\u7eaf\u7cb9\u591a\u5e93\u3001 \u8bfb\u5199\u5206\u79bb\u3001 \u4e00\u4e3b\u591a\u4ece\u3001 \u6df7\u5408\u6a21\u5f0f\u7b49 \u76ee\u524d\u6765\u6a21\u62df\u4e00\u4e2a\u7eaf\u7cb9\u591a\u5e93\u7684\u4e00\u4e2a\u573a\u666f\uff0c\u5176\u4ed6\u573a\u666f\u7c7b\u4f3c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[165],"tags":[183],"class_list":["post-4047","post","type-post","status-publish","format-standard","hentry","category-mybatisplus-","tag-mybatisplus"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/4047"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4047"}],"version-history":[{"count":14,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/4047\/revisions"}],"predecessor-version":[{"id":4061,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/4047\/revisions\/4061"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}