springboot mybatis项目整合加入PageHelper分页插件
【摘要】
springboot整合mybaits我就不介绍了，网上大把教程，这里直接讲解整合PageHelper 分页
1、pom.xml加入依赖
<!-- mybatis分页插件pagehelp 数据驱动 --><dependency> <groupId>com.github.pagehe...
springboot整合mybaits我就不介绍了，网上大把教程，这里直接讲解整合PageHelper 分页
1、pom.xml加入依赖
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<!-- mybatis分页插件pagehelp 数据驱动 -->
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<dependency>
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<groupId>com.github.pagehelper</groupId>
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<artifactId>pagehelper</artifactId>
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<version>4.1.6</version>
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</dependency>
2、在入口类使用Configuration注册分页插件
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/*
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* 注册MyBatis分页插件PageHelper
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*/
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@Configuration
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public class MybatisConf {
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@Bean
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public PageHelper pageHelper() {
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System.out.println("MyBatisConfiguration.pageHelper()");
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PageHelper pageHelper = new PageHelper();
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Properties p = new Properties();
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p.setProperty("offsetAsPageNum", "true");
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p.setProperty("rowBoundsWithCount", "true");
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p.setProperty("reasonable", "true");
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pageHelper.setProperties(p);
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return pageHelper;
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}
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}
3、配置文件 在application.yml 加入以下内容，其实不加也可以，默认的配置就够我们用了
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#pagehelper分页配置
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pagehelper:
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helperDialect: mysql
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reasonable: true
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supportMethodsArguments: true
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params: count=countSql
4、使用方法，在查询列表之前先new一个分页出来
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public ResponseCommand list() {
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Article searchModel = new Article();
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//分页插件-一定要在查询方法之前加上，参数(1,2)表示查询第1页，每页2条记录
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Page<Article> objects = PageHelper.startPage(1, 2);
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List<Article> list = articleMapper.queryModelList(searchModel);
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//查询完成之后就可以使用对象获取总数
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System.out.println("总记录数："+objects.getTotal());
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System.out.println("总页数："+objects.getPageNum());
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System.out.println("每页记录数："+objects.getPageSize());
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System.out.println("当前页记录数："+objects.size());
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System.out.println("总页数："+objects.getPages());
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long total = objects.getTotal();
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ResponseCommand command = new ResponseCommand();
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command.setStatus(true);
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command.setResult(list);
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return command;
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}
是不是很简单呢？
#################以下为全部代码，大神请忽略，新手可以看下###################
pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.spring.boot</groupId>
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<artifactId>spriongboot-mybatis</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>love-qdf</name>
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<description>Demo project for Spring Boot</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.1.1.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-jdbc</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.mybatis.spring.boot</groupId>
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<artifactId>mybatis-spring-boot-starter</artifactId>
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<version>1.3.2</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<!-- mybatis分页插件pagehelp 数据驱动 -->
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<dependency>
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<groupId>com.github.pagehelper</groupId>
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<artifactId>pagehelper</artifactId>
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<version>4.1.6</version>
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</dependency>
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</dependencies>
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<build>
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<finalName>love-qdf</finalName>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
springboot 入口类
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package com.spring.boot;
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import com.github.pagehelper.PageHelper;
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import org.mybatis.spring.annotation.MapperScan;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import java.util.Properties;
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@SpringBootApplication
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@MapperScan("com.data.dao")
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public class SpriongbootMybatisApplication {
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public static void main(String[] args) {
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SpringApplication.run(SpriongbootMybatisApplication.class, args);
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}
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/*
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* 注册MyBatis分页插件PageHelper
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*/
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@Configuration
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public class MybatisConf {
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@Bean
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public PageHelper pageHelper() {
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System.out.println("MyBatisConfiguration.pageHelper()");
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PageHelper pageHelper = new PageHelper();
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Properties p = new Properties();
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p.setProperty("offsetAsPageNum", "true");
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p.setProperty("rowBoundsWithCount", "true");
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p.setProperty("reasonable", "true");
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pageHelper.setProperties(p);
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return pageHelper;
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}
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}
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}
application.yml配置文件.
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server:
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port: 8081
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spring:
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datasource:
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name: SpringBoot-MyBatis
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url: jdbc:mysql://192.168.1.101:3306/article_dev?useUnicode=true
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username: root
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password: 123
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# type: com.alibaba.druid.pool.DruidDataSource # 使用druid 数据源
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driver-class-name: com.mysql.jdbc.Driver
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# dbcp2:
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# min-idle: 1
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# max-idle: 2
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# initial-size: 1
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# time-between-eviction-runs-millis: 3000
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# min-evictable-idle-time-millis: 300000
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# validation-query: SELECT "ZTM" FROM DUAL
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# test-while-idle: true
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# test-on-borrow: false
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# test-on-return: false
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mybatis:
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mapper-locations: classpath:sqlMapper/*Mapper.xml
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type-aliases-package: com.data.model
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#pagehelper分页配置
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pagehelper:
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helperDialect: mysql
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reasonable: true
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supportMethodsArguments: true
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params: count=countSql
文章来源: yexindong.blog.csdn.net，作者：java叶新东老师，版权归原作者所有，如需转载，请联系作者。
原文链接：yexindong.blog.csdn.net/article/details/84793738
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