分页查询

pom.xml

@@ -56,6 +56,12 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<dependency>
+			<groupId>com.baomidou</groupId>
+			<artifactId>mybatis-plus-boot-starter</artifactId>
+			<version>3.5.3</version>
+		</dependency>
 	</dependencies>
 
 	<build>

src/main/java/xyz/playedu/api/config/MybatisPlusConfig.java

@@ -0,0 +1,19 @@
+package xyz.playedu.api.config;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MybatisPlusConfig {
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
+        return interceptor;
+    }
+
+}

src/main/java/xyz/playedu/api/controller/admin/AdminUserController.java

@@ -0,0 +1,23 @@
+package xyz.playedu.api.controller.admin;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import xyz.playedu.api.domain.AdminUser;
+import xyz.playedu.api.service.impl.AdminUserServiceImpl;
+import xyz.playedu.api.types.PageResult;
+
+@RestController
+public class AdminUserController {
+
+    @Autowired
+    private AdminUserServiceImpl adminUserService;
+
+    @GetMapping("/admin/user/index")
+    public PageResult<AdminUser> List(@RequestParam("page") Integer page, @RequestParam("size") Integer size) {
+        PageResult<AdminUser> result = adminUserService.paginate(page, size, null);
+        return result;
+    }
+
+}

src/main/java/xyz/playedu/api/domain/AdminUser.java

@@ -0,0 +1,133 @@
+package xyz.playedu.api.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import java.util.Date;
+import lombok.Data;
+
+/**
+ * 
+ * @TableName admin_users
+ */
+@TableName(value ="admin_users")
+@Data
+public class AdminUser implements Serializable {
+    /**
+     * 
+     */
+    @TableId(type = IdType.AUTO)
+    private Integer id;
+
+    /**
+     * 姓名
+     */
+    private String name;
+
+    /**
+     * 邮箱
+     */
+    private String email;
+
+    /**
+     * 密码
+     */
+    private String password;
+
+    /**
+     * 登录IP
+     */
+    private String loginIp;
+
+    /**
+     * 登录时间
+     */
+    private Date loginAt;
+
+    /**
+     * 1禁止登录,0否
+     */
+    private Integer isBanLogin;
+
+    /**
+     * 登录次数
+     */
+    private Integer loginTimes;
+
+    /**
+     * 
+     */
+    private Date createdAt;
+
+    /**
+     * 
+     */
+    private Date updatedAt;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public boolean equals(Object that) {
+        if (this == that) {
+            return true;
+        }
+        if (that == null) {
+            return false;
+        }
+        if (getClass() != that.getClass()) {
+            return false;
+        }
+        AdminUser other = (AdminUser) that;
+        return (this.getId() == null ? other.getId() == null : this.getId().equals(other.getId()))
+            && (this.getName() == null ? other.getName() == null : this.getName().equals(other.getName()))
+            && (this.getEmail() == null ? other.getEmail() == null : this.getEmail().equals(other.getEmail()))
+            && (this.getPassword() == null ? other.getPassword() == null : this.getPassword().equals(other.getPassword()))
+            && (this.getLoginIp() == null ? other.getLoginIp() == null : this.getLoginIp().equals(other.getLoginIp()))
+            && (this.getLoginAt() == null ? other.getLoginAt() == null : this.getLoginAt().equals(other.getLoginAt()))
+            && (this.getIsBanLogin() == null ? other.getIsBanLogin() == null : this.getIsBanLogin().equals(other.getIsBanLogin()))
+            && (this.getLoginTimes() == null ? other.getLoginTimes() == null : this.getLoginTimes().equals(other.getLoginTimes()))
+            && (this.getCreatedAt() == null ? other.getCreatedAt() == null : this.getCreatedAt().equals(other.getCreatedAt()))
+            && (this.getUpdatedAt() == null ? other.getUpdatedAt() == null : this.getUpdatedAt().equals(other.getUpdatedAt()));
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
+        result = prime * result + ((getName() == null) ? 0 : getName().hashCode());
+        result = prime * result + ((getEmail() == null) ? 0 : getEmail().hashCode());
+        result = prime * result + ((getPassword() == null) ? 0 : getPassword().hashCode());
+        result = prime * result + ((getLoginIp() == null) ? 0 : getLoginIp().hashCode());
+        result = prime * result + ((getLoginAt() == null) ? 0 : getLoginAt().hashCode());
+        result = prime * result + ((getIsBanLogin() == null) ? 0 : getIsBanLogin().hashCode());
+        result = prime * result + ((getLoginTimes() == null) ? 0 : getLoginTimes().hashCode());
+        result = prime * result + ((getCreatedAt() == null) ? 0 : getCreatedAt().hashCode());
+        result = prime * result + ((getUpdatedAt() == null) ? 0 : getUpdatedAt().hashCode());
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(getClass().getSimpleName());
+        sb.append(" [");
+        sb.append("Hash = ").append(hashCode());
+        sb.append(", id=").append(id);
+        sb.append(", name=").append(name);
+        sb.append(", email=").append(email);
+        sb.append(", password=").append(password);
+        sb.append(", loginIp=").append(loginIp);
+        sb.append(", loginAt=").append(loginAt);
+        sb.append(", isBanLogin=").append(isBanLogin);
+        sb.append(", loginTimes=").append(loginTimes);
+        sb.append(", createdAt=").append(createdAt);
+        sb.append(", updatedAt=").append(updatedAt);
+        sb.append(", serialVersionUID=").append(serialVersionUID);
+        sb.append("]");
+        return sb.toString();
+    }
+}

src/main/java/xyz/playedu/api/mapper/AdminUserMapper.java

@@ -0,0 +1,20 @@
+package xyz.playedu.api.mapper;
+
+import org.apache.ibatis.annotations.Mapper;
+import xyz.playedu.api.domain.AdminUser;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+* @author tengteng
+* @description 针对表【admin_users】的数据库操作Mapper
+* @createDate 2023-01-30 16:22:00
+* @Entity xyz.playedu.api.domain.AdminUser
+*/
+@Mapper
+public interface AdminUserMapper extends BaseMapper<AdminUser> {
+
+}
+
+
+
+

src/main/java/xyz/playedu/api/service/AdminUserService.java

@@ -0,0 +1,13 @@
+package xyz.playedu.api.service;
+
+import xyz.playedu.api.domain.AdminUser;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+* @author tengteng
+* @description 针对表【admin_users】的数据库操作Service
+* @createDate 2023-01-30 16:22:00
+*/
+public interface AdminUserService extends IService<AdminUser> {
+
+}

src/main/java/xyz/playedu/api/service/impl/AdminUserServiceImpl.java

@@ -0,0 +1,36 @@
+package xyz.playedu.api.service.impl;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.baomidou.mybatisplus.core.conditions.Wrapper;
+import xyz.playedu.api.domain.AdminUser;
+import xyz.playedu.api.service.AdminUserService;
+import xyz.playedu.api.mapper.AdminUserMapper;
+import org.springframework.stereotype.Service;
+import xyz.playedu.api.types.PageResult;
+
+/**
+ * @author tengteng
+ * @description 针对表【admin_users】的数据库操作Service实现
+ * @createDate 2023-01-30 16:22:00
+ */
+@Service
+public class AdminUserServiceImpl extends ServiceImpl<AdminUserMapper, AdminUser> implements AdminUserService {
+
+    public PageResult<AdminUser> paginate(int page, int size, Wrapper<AdminUser> queryWrapper) {
+        IPage<AdminUser> userPage = new Page<>(page, size);
+        userPage = this.getBaseMapper().selectPage(userPage, queryWrapper);
+
+        PageResult<AdminUser> pageResult = new PageResult<>();
+        pageResult.setData(userPage.getRecords());
+        pageResult.setTotal(userPage.getTotal());
+
+        return pageResult;
+    }
+
+}
+
+
+
+

src/main/java/xyz/playedu/api/types/PageResult.java

@@ -0,0 +1,26 @@
+package xyz.playedu.api.types;
+
+import java.util.List;
+
+public class PageResult<T> {
+
+    private List<T> data;
+
+    private Long total;
+
+    public List<T> getData() {
+        return data;
+    }
+
+    public void setData(List<T> data) {
+        this.data = data;
+    }
+
+    public Long getTotal() {
+        return total;
+    }
+
+    public void setTotal(Long total) {
+        this.total = total;
+    }
+}

src/main/resources/application.properties

@@ -2,3 +2,6 @@ spring.profiles.active=dev
 
 #mybatis
 mybatis.mapper-locations=classpath:mapper/*.xml
+
+#mybatis-plus
+mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

src/main/resources/mapper/AdminUserMapper.xml

@@ -0,0 +1,26 @@
+<?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="xyz.playedu.api.mapper.AdminUserMapper">
+
+    <resultMap id="BaseResultMap" type="xyz.playedu.api.domain.AdminUser">
+            <id property="id" column="id" jdbcType="INTEGER"/>
+            <result property="name" column="name" jdbcType="VARCHAR"/>
+            <result property="email" column="email" jdbcType="VARCHAR"/>
+            <result property="password" column="password" jdbcType="VARCHAR"/>
+            <result property="loginIp" column="login_ip" jdbcType="VARCHAR"/>
+            <result property="loginAt" column="login_at" jdbcType="TIMESTAMP"/>
+            <result property="isBanLogin" column="is_ban_login" jdbcType="TINYINT"/>
+            <result property="loginTimes" column="login_times" jdbcType="INTEGER"/>
+            <result property="createdAt" column="created_at" jdbcType="TIMESTAMP"/>
+            <result property="updatedAt" column="updated_at" jdbcType="TIMESTAMP"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id,name,email,
+        password,login_ip,login_at,
+        is_ban_login,login_times,created_at,
+        updated_at
+    </sql>
+</mapper>