SpringBoot+MyBatisPlus实现插入关联多表数据的接口（企业质检管理举例）

@Description("扫码生成单件质检单")
    @RequestMapping(value="/generatingSingleJianQualityTestOrder",method =RequestMethod.POST)
    @ResponseBody
    @ApiOperation(value="生成单件质检单", notes="上位机扫码，生成单件质检单")
    @ApiImplicitParam(name = "trayCode", value = "托盘编码", required = true, dataType = "String")
    public  Json generatingSingleJianQualityTestOrder(String trayCode) {
        return this.wmsMasterCleanFinishService.generatingSingleJianQualityTestOrder(trayCode);
    }

package com.ws.api.sys.vo;

import lombok.Data;

import java.io.Serializable;

@Data
public class Json implements Serializable {
    //默认未失败状态
    private static Json instance;
    private String msg = "接口访问失败";
    private String title = "失败提示";
    private boolean status = false;
    private int code = 300;
    private Object data = null;

    public synchronized static Json getInst() {
        if(instance==null){
            instance = new Json();
        }
        return instance;
    }

    public Json() {
        super();
    }

    public Json success(Object data){
        this.title = "成功提示";
        this.msg = "接口访问成功";
        this.status = true;
        this.code = 200;
        this.data = data;
        return this;
    }

    public Json success(){
        this.title = "成功提示";
        this.msg = "接口访问成功";
        this.status = true;
        this.code = 200;
        this.data = null;
        return this;
    }

    public Json fail(Object data){
        this.title = "失败提示";
        this.msg = "接口访问失败";
        this.status = false;
        this.code = 300;
        this.data = data;
        return this;
    }

    public Json fail(){
        this.title = "失败提示";
        this.msg = "接口访问失败";
        this.status = false;
        this.code = 300;
        this.data = null;
        return this;
    }
}

public  Json generatingSingleJianQualityTestOrder(String trayCode);

@Transactional
    @Override
    public Json generatingSingleJianQualityTestOrder(String trayCode)
    {
        Json json=Json.getInst();
        try{
        WmsQualitytesOrder wmsQualitytesOrder = new WmsQualitytesOrder();
        //质检单号
        String orderCode = this.iWmsQualitytesOrderService.generatePickNo(new Date());
        wmsQualitytesOrder.setOrderCode(orderCode);
        //创建时间
        wmsQualitytesOrder.setGmtCreat(new Date());
        //状态为 未质检
        wmsQualitytesOrder.setStatus(0);
        //发起机台固定为清洁车间机台cj002
        wmsQualitytesOrder.setInitiaWorkshop("cj002");
        //质检类型为单件质检
        wmsQualitytesOrder.setQualifiedType("1");
        int result = this.wmsQualitytesOrderMapper.insert(wmsQualitytesOrder);
        if (result > 0){
            WmsQualitytestListOrder wmsQualitytestListOrder = new WmsQualitytestListOrder();
            //设置主表ID
            wmsQualitytestListOrder.setQualitytestId(wmsQualitytesOrder.getId());
            //设置物料名称
            BusTrayMateriel busTrayMateriel = new BusTrayMateriel();
            QueryWrapper busTrayMaterielQueryWrapper = new QueryWrapper();
            busTrayMaterielQueryWrapper.eq("tray_number", trayCode);
            List busTrayMaterielList = new ArrayList();
            busTrayMaterielList = busTrayMaterielMapper.selectList(busTrayMaterielQueryWrapper);
            busTrayMateriel=busTrayMaterielList.get(0);
            wmsQualitytestListOrder.setMaterielName(busTrayMateriel.getMaterielName());
            //设置物料ID
            wmsQualitytestListOrder.setMaterielId(busTrayMateriel.getId());
            //设置物料编号
            wmsQualitytestListOrder.setMaterielNumber(busTrayMateriel.getMaterielNumber());
            //设置物料类别名称
            BusMaterielInfo busMaterielInfo = new BusMaterielInfo();
            QueryWrapper busTrayMaterielInfoQueryWrapper = new QueryWrapper();
            busTrayMaterielInfoQueryWrapper.eq("materiel_number", busTrayMateriel.getMaterielNumber());
            busMaterielInfo = busMaterielInfoMapper.selectOne(busTrayMaterielInfoQueryWrapper);
            Long materialType = busMaterielInfo.getMaterielType();
            //码表
            SysCode sysCode = new SysCode();
            QueryWrapper sysCodeQueryWrapper = new QueryWrapper();
            sysCodeQueryWrapper.eq("code_type", "materiel_type");
            sysCodeQueryWrapper.eq("code_value", materialType);
            sysCode = codeMapper.selectOne(sysCodeQueryWrapper);
            wmsQualitytestListOrder.setMaterielTypeName(sysCode.getCodeName());
            //设置物料类别
            wmsQualitytestListOrder.setMaterielType(materialType.intValue());
            //设置数量
            wmsQualitytestListOrder.setNum(busTrayMaterielList.size());
            //设置物料规格
            wmsQualitytestListOrder.setMaterielSpec(busMaterielInfo.getMaterielSpec());
            //设置单位
            wmsQualitytestListOrder.setUntiy(busMaterielInfo.getUntiy());
            //设置批次？单件质检是否应该有批次号

            //设置供应商批次
            wmsQualitytestListOrder.setSupplierBatch(busTrayMateriel.getSupplierBatch());
            //设置质检类型
            wmsQualitytestListOrder.setQualifiedType("1");
            //设置质检名字
            wmsQualitytestListOrder.setQualifiedName("单件质检");
            //设置是否有批次
            wmsQualitytestListOrder.setBatchFlag(0);
            //设置发起机台
            wmsQualitytestListOrder.setInitiaWorkshop("清洁车间机台");
            //设置是否完成质检
            wmsQualitytestListOrder.setQualifiedFlag(0);
            //保存
            this.iWmsQualitytestListOrderService.save(wmsQualitytestListOrder);
            json.success();
            json.setMsg("生成质检单成功");
        }else{
            json.fail();
            json.setMsg("生成质检单主表异常，请联系管理员");
        }
        }catch (Exception e){
            json.fail();
            json.setMsg("生成质检单异常:"+e.toString());
        }
        return json;
    }