更新代码

integrate-mybatisplus/pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>springboot-demo</artifactId>
+        <groupId>com.pannk</groupId>
+        <version>1.0</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>integrate-mybatisplus</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>5.1.49</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.4</version>
+        </dependency>
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+            <version>3.4.0</version>
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file

integrate-mybatisplus/src/main/java/com/pannk/demo/App.java

+package com.pannk.demo;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+@MapperScan("com.pannk.demo.mapper")
+@SpringBootApplication
+public class App {
+
+    public static void main(String[] args) {
+        SpringApplication.run(App.class, args);
+    }
+}

integrate-mybatisplus/src/main/java/com/pannk/demo/config/MyBatisPlusConfig.java

+package com.pannk.demo.config;
+
+import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+@Configuration
+public class MyBatisPlusConfig {
+
+    @Bean
+    public PaginationInterceptor paginationInterceptor() {
+        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
+        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
+        // paginationInterceptor.setOverflow(false);
+        // 设置最大单页限制数量，默认 500 条，-1 不受限制
+        // paginationInterceptor.setLimit(500);
+        // 开启 count 的 join 优化,只针对部分 left join
+        paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
+        return paginationInterceptor;
+    }
+}

integrate-mybatisplus/src/main/java/com/pannk/demo/controller/Result.java

+package com.pannk.demo.controller;
+
+import lombok.Data;
+
+import java.util.HashMap;
+
+/**
+ * Created by wolf on 20-11-9.
+ */
+@Data
+public class Result extends HashMap<String, Object> {
+
+
+    private Result() {
+        put("code", 0);
+        put("msg", "执行成功");
+    }
+
+    public static Result success() {
+        Result result = new Result();
+
+        return result;
+    }
+
+    public static Result fail() {
+        Result result = new Result();
+        result.put("code", 1);
+        result.put("msg", "执行失败");
+        return result;
+    }
+
+    public static Result success(Object data) {
+        Result result = success();
+        result.put("data", data);
+        return result;
+    }
+}
+

integrate-mybatisplus/src/main/java/com/pannk/demo/controller/SysUserController.java

+package com.pannk.demo.controller;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.pannk.demo.entity.SysUserEntity;
+import com.pannk.demo.service.SysUserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+@RestController
+@RequestMapping("/sys/user")
+public class SysUserController {
+
+    @Autowired
+    private SysUserService sysUserService;
+
+    /**
+     * 列表查询
+     *
+     * @return
+     */
+    @GetMapping("/list")
+    public Result list() {
+        return Result.success(sysUserService.list());
+    }
+
+    /**
+     * 分页查询
+     *
+     * @return
+     */
+    @GetMapping("/page")
+    public Result page(int currPage,int pageSize) {
+        IPage<SysUserEntity> page = new Page<>(currPage,pageSize);
+        page = sysUserService.page(page,null);
+        return Result.success(page);
+    }
+
+}

integrate-mybatisplus/src/main/java/com/pannk/demo/entity/SysUserEntity.java

+package com.pannk.demo.entity;
+
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.util.Date;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+@Data
+@TableName("sys_user")
+public class SysUserEntity {
+
+    @TableId
+    private Long id;
+    private String userName;
+    private String password;
+    private String code;
+    private Date createDate;
+    private Long createId;
+    private Date updateDate;
+    private Long updateId;
+}

integrate-mybatisplus/src/main/java/com/pannk/demo/mapper/SysUserMapper.java

+package com.pannk.demo.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.pannk.demo.entity.SysUserEntity;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+public interface SysUserMapper extends BaseMapper<SysUserEntity> {
+}

integrate-mybatisplus/src/main/java/com/pannk/demo/service/SysUserService.java

+package com.pannk.demo.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.pannk.demo.entity.SysUserEntity;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+public interface SysUserService extends IService<SysUserEntity>{
+}

integrate-mybatisplus/src/main/java/com/pannk/demo/service/impl/SysUserServiceImpl.java

+package com.pannk.demo.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.pannk.demo.entity.SysUserEntity;
+import com.pannk.demo.mapper.SysUserMapper;
+import com.pannk.demo.service.SysUserService;
+import org.springframework.stereotype.Service;
+
+/**
+ * Created by wolf on 20-11-10.
+ */
+@Service
+public class SysUserServiceImpl extends ServiceImpl<SysUserMapper, SysUserEntity> implements SysUserService {
+}

integrate-mybatisplus/src/main/resources/application.yml

+spring:
+  profiles:
+    active: dev
+  datasource:
+    url: jdbc:mysql://localhost:3306/springboot2-demo?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false
+    username: root
+    password: 123456
+    driver-class-name: com.mysql.jdbc.Driver
+  main:
+    banner-mode: off
+server:
+#  port: 8888 # HTTP端口号
+  address:  #绑定的网络地址
+  servlet:
+    context-path: / # 上下文路径,即项目访问路径
+mybatis-plus:
+  mapper-locations: classpath*:/mapper/*.xml
+  configuration:
+    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
\ No newline at end of file

integrate-mybatisplus/src/main/resources/mapper/SysUserMapper.xml

+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
+<mapper namespace="com.pannk.demo.mapper.SysUserMapper">
+</mapper>
\ No newline at end of file

pom.xml

@@ -13,6 +13,7 @@
         <module>common-config</module>
         <module>mms</module>
         <module>integrate-mybatis</module>
+        <module>integrate-mybatisplus</module>
     </modules>
     <parent>
         <groupId>org.springframework.boot</groupId>