mybatis-plus page分页

实例

包 com.baomidou.mybatisplus.extension.plugins.pagination

   /**
     * 分页查询
     * @param
     * @param
     * @return
     */
    @ApiOperation(value = "分页查询", notes = "分页查询")
    @GetMapping("/page" )
    public R findPage(@RequestParam(required = false,defaultValue = "1") Integer pageNum,
                      @RequestParam(required = false,defaultValue = "10") Integer pageSize,
                      @RequestParam(required = false) String dataSourceName,
                      @RequestParam(required = false) String ip,
                      @RequestParam Integer dataSourceType) {
        return R.ok(aggDatasourceService.findPage(pageNum,pageSize,dataSourceName,ip,dataSourceType));
    }

    @Override
    public Page<AggDataSource> findPage(Integer pageNum, Integer pageSize, String dataSourceName, String ip,Integer dataSourceType){
        Page<AggDataSource> page = new Page<>(pageNum, pageSize); //new page (当前页,当前大小)
        return this.baseMapper.find(page, dataSourceName, ip,dataSourceType);　　　　

　　　　　　//把参数传递给mapper方法即可,它会自动在执行sql的时候包装一下,包装内容其实是limt 得语句 select count(1) from(select * from user)  limit 5 offset 0 ;

}

    <select id="find" resultType="com.zxgeo.data.quartz.api.entity.AggDataSource">

            SELECT
                datasource_id,
                datasource_name,
                ip,
                port,
                SCHEMA,
                user_name,
                db_type,
                datasource_type,
                create_time,
                update_time
            FROM
                "agg_datasource"
            WHERE
                 del_flag = 0
                 and datasource_type = #{dataSourceType}
                <if test="dataSourceName!=null and dataSourceName!=''">
                    and datasource_name like concat('%', #{dataSourceName}, '%')
                </if>
                <if test="ip!=null and ip!=''">
                    and ip like concat('%', #{ip}, '%')
                </if>
      </select>