DataTable] DataTables Cannot read property 'length' of undefined 에러

DataTables Cannot read property 'length' of undefined 이라는 에러.

 

기본적으로 ajax 에서 받아오는 데이터를 화면 (JSP) 에 뿌릴 때 데이터 수와 테이블 수가 달라서 안나오는 경우가 많다.

 

하지만 이번에 나온 경우는 BackEnd 에서 ajax 로 넘길 값을 서비스impl 에서 담지 않고 보내서 나는 에러였다.

 

package kr.co.smartix.service.impl;

import kr.co.smartix.common.domain.PageResource;
import kr.co.smartix.domain.company.CompanyVO;
import kr.co.smartix.domain.member.MemberVO;
import kr.co.smartix.domain.member.MyAuthenticaion;
import kr.co.smartix.domain.reservation.ReserveVO;
import kr.co.smartix.mapper.CompanyMapper;
import kr.co.smartix.mapper.ReserveMapper;
import kr.co.smartix.service.CompanyService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;

import java.util.List;


@Service
@Validated
@Slf4j
@RequiredArgsConstructor    //어노테이션의 특성을 사용하면 @Autowired나 @Resource @Inject 어노테이션 없이 DI 주입이 가능합니다
@Transactional( propagation= Propagation.REQUIRED, readOnly=true)
public class CompanyServiceImpl implements CompanyService {
	private final CompanyMapper companyMapper;
	private final PageResource resource = new PageResource();

	@Override
	public PageResource selectCompanyList(MemberVO memberVO) {

		MemberVO memberOutputVO = ((MyAuthenticaion) SecurityContextHolder.getContext().getAuthentication()).getMemberVO();
		String upidkey = memberOutputVO.getUpidkey();
		String idgubun = memberOutputVO.getIdgubun();
		String name = memberOutputVO.getName();
		String insertDt = memberOutputVO.getInsertDt();
		String email = memberOutputVO.getEmail();
		String pwd = memberOutputVO.getPwd();
		String tel = memberOutputVO.getTel();
		String useYn = memberOutputVO.getUseYn();
		String id = memberOutputVO.getIdkey();
		/*memberVO.setName(name);*/
		memberVO.setIdkey(id);
		memberVO.setIdkey(upidkey);
		memberVO.setIdgubun(idgubun);
/*		memberVO.setName(name);
		memberVO.setInsertDt(insertDt);
		memberVO.setEmail(email);
		memberVO.setPwd(pwd);
		memberVO.setTel(tel);
		memberVO.setUseYn(useYn);*/

		//long total = companyMapper.selectCompanyCnt(memberVO);
		//memberVO.getPageHelper().setTotalCount(total);
		List<MemberVO> companyList = companyMapper.selectCompanyList(memberVO);




		resource.setData(companyList);
		resource.setRecordsTotal(11);
		resource.setRecordsFiltered(11);
		resource.setLength(memberVO.getPageHelper().getLinePerPage());
		resource.setStart(memberVO.getPageHelper().getStartRow());
		return resource;
	}
}

 

resource.setData(companyList); <= 이렇게 담아서 넘겨줬어야했는데 못했다...

 

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