把字符串参数分割成数组 传入SQL foreach遍历查询

  /**
     * 采购价盘管理列表查询
     * @param pCusArr 供应商编码编码
     * @param pPro 物料编码
     * @param pDid 经销商编号
     * @return
     */
    List<BaseMatnrUnitDto> getBaseMatnrUnitDto(@Param("pCusArr") String[] pCusArr, @Param("pPro") String pPro, @Param("pDid") String pDid);



<select id="getBaseMatnrUnitDto" resultType="com.shinho.dc3.master.dto.BaseMatnrUnitDto" parameterType="map">
    SELECT B1.ROW_ID, -- 供应商编码
    B1.supplier_name, -- 供应商名称
    A1.MATNR, -- 商品编码
    A1.MAKTX, -- 商品描述
    C1.INSDT, -- 最后交易时间
    A1.UNIT_ID, -- 单位编码
    A1.UNIT_NAME, -- 单位名称
    A1.DID, -- 经销商编码
    CASE
    WHEN A1.TYPE = 'B' THEN
    A1.Fixed_Price
    ELSE
    A1.Fixed_Price * A1.Umrez
    END RETAIL_PRICE, -- 价盘价格
    NVL(C1.Price,0)Price, -- 最新价格
    NVL(C1.IS_LOCK, 0) IS_LOCK, -- 是否锁定
    CASE
    WHEN C1.IS_LOCK = 1 THEN '是'
    ELSE '否' END IS_LOCK_B,
    C1.REMARK
    FROM (SELECT DISTINCT A.MATNR,
    A.MAKTX,
    A1.UNIT_ID,
    A1.UNIT_NAME,
    A.DID,
    A.RETAIL_PRICE,
    A.SALE_PRICE,
    A1.TYPE,
    A.Fixed_Price,
    A.Umrez
    FROM base_matnr  A
    JOIN `base_matnr_unit`  A1
    ON A.MATNR = A1.MATNR
    AND A.DID = A1.DID
    JOIN  base_supplier_matnr a2 ON
    A.matnr=a2.matnr AND A.did=a2.did  AND a2.supplier_id IN
    <foreach collection="pCusArr" item="listItem" index="index" open="(" close=")" separator="," >
    #{listItem}
    </foreach>
    WHERE A.DID = #{pDid}
    -- if pPro不为空
    <if test="pPro != null" >
      AND A1.MATNR = #{pPro}
    </if>
    ) A1
    LEFT JOIN base_supplier B1  on B1.DID = A1.DID
    <if test="pCusArr!=null">
      and B1.ROW_ID IN
      <foreach collection="pCusArr" item="listItem" index="index" open="(" close=")" separator="," >
        #{listItem}
      </foreach>
    </if>
    LEFT JOIN po_price_list C1
    ON C1.DID = A1.DID
    AND C1.UNIT_ID = A1.UNIT_ID
    AND C1.MATNR = A1.MATNR
    AND C1.supplier_id = B1.ROW_ID
    ORDER BY A1.MAKTX, B1.ROW_ID
  </select>



 /**
     *采购价盘管理列表查询
     * @param pCus
     * @param pPro
     * @param pDid
     * @return
     */
    public List<BaseMatnrUnitDto> getBaseMatnrUnitDto(String pCus,String pPro,String pDid){
        String[] pCusArr = null;
        if(!StringUtils.isEmpty(pCus)){
            pCusArr = pCus.split(",");
        }
        return baseMatnrUnitMapper.getBaseMatnrUnitDto(pCusArr,pPro,pDid);
    }



/**
     * 采购价盘管理列表查询
     * @param pCus 供应商编码编码
     * @param pPro 物料编码
     * @param pDid 经销商编号
     * @param pageSearch 分页
     * @return
     */
    @GetMapping(value = "/getBaseMatnrUnitDto")
    @ApiOperation(value = "采购价盘管理列表查询", notes = "采购价盘管理列表查询")
    public JsonResult<PageInfo<BaseMatnrUnitDto>> getBaseMatnrUnitDto(@ApiParam(name = "pCus", value = "经销商编号", required = true) @RequestParam String pCus,
                                                                      @ApiParam(name = "pPro", value = "物料编号") @RequestParam String pPro,
                                                                      @ApiParam(name = "pDid", value = "经销商编号") @RequestParam(required = false) String pDid, PageSearch pageSearch){
        UserInfo userInfo=this.getUserInfo();
        if(userInfo!=null && org.springframework.util.StringUtils.isEmpty(userInfo.getDid())){
            pDid = userInfo.getDid();
        }
        logger.info("采购价盘管理列表查询接口请求参数:pCus:{},pPro:{},pDid:{}", pCus,pPro,pDid);
        //当前页，页面大小
        if(pageSearch !=null) {
            PageHelper.startPage(pageSearch.getPageIndex(), pageSearch.getPageSize());
        }
        List<BaseMatnrUnitDto> list=baseMatnrUnitService.getBaseMatnrUnitDto(pCus,pPro,pDid);
        PageInfo<BaseMatnrUnitDto> pageInfo = new PageInfo<>(list);
        //封装返回结果
        JsonResult<PageInfo<BaseMatnrUnitDto>> result = new JsonResult<>();
        result.setData(pageInfo);
        return result;
    }