Mybatisplus's generic query can simply discard DAO and mapper.xml.

/** * * @author shenjing * @date 2018/6/20 * * @Servicepublic class Localdispatchserviceimpl extends Serviceimpl<rep_disp     Atchdao, Rep_dispatch> implements Localdispatchservice {/** * based on the domain combination of various types of queries, the general query can be completed through this, DAO completely does not exist the meaning of        * * @param domain * @return */@Override public rep_dispatch findonebydomain (rep_dispatch domain) {        entitywrapper<rep_dispatch> ewrapper = new entitywrapper<> (domain);    Return SelectOne (Ewrapper); /** * Query According to paging parameters * * @param dispatchpageparam * @return */@Override public Page<rep_dis Patch> findlistbypage (Dispatchpageparam dispatchpageparam) {page<rep_dispatch> Page = new Page<> (di        Spatchpageparam.getstartindex (), dispatchpageparam.getpagesize ());        entitywrapper<rep_dispatch> ewrapper = new entitywrapper<> (Dispatchpageparam.getobj ());        page<rep_dispatch> ret = selectpage (page, ewrapper);    return ret; }}

Here, Serviceimpl, is a base class provided by Mybatisplus.

Dispatchpageparam is a package of query parameters written by himself

/** * Basic Paging parameters * @author shenjing * @date 2018/6/20 */public class Basepageparam<t> {    T obj;    int startIndex;    int pageSize;    Public T Getobj () {        return obj;    }    public void Setobj (T obj) {        this.obj = obj;    }    public int Getstartindex () {        return startIndex;    }    public void Setstartindex (int startIndex) {        this.startindex = StartIndex;    }    public int getpagesize () {        return pageSize;    }    public void setpagesize (int pageSize) {        this.pagesize = pageSize;    }}

Actually, there's nothing in this, just inherit the base class.

/** * Created by shenjing on 2018/6/20. */public class Dispatchpageparam extends Basepageparam<rep_dispatch> {}

　　

Mybatisplus's generic query can simply discard DAO and mapper.xml