Java tutorial
package com.pingdu.dao.licenseDao; import static com.pingdu.manager.ThreadLocalManager.em; import java.io.File; import java.util.List; import javax.persistence.TypedQuery; import org.eclipse.persistence.config.QueryHints; import org.eclipse.persistence.config.ResultType; import org.springframework.stereotype.Repository; import com.pingdu.entity.license.License; import com.pingdu.utility.PublicVariable; @Repository public class LicenseDao { public void insert() { em().persist(this); } public List<License> getLicenseList(int page, int rows) { int head = (page - 1) * rows; String jpql = "select l from License l where 1=1 "; TypedQuery<License> query = em().createQuery(jpql, License.class); // query.setHint(QueryHints.RESULT_TYPE, ResultType.Map); query.setFirstResult(head); query.setMaxResults(rows); List<License> list = query.getResultList(); return list; } public License getLicenseInfo(int entCode, int licenseCode) { String jpql = "select l from License l where l.licenseCode=:licenseCode ANDl.entCode=:entCode"; TypedQuery<License> query = em().createQuery(jpql, License.class); query.setParameter("licenseCode", licenseCode); query.setParameter("entCode", entCode); List<License> licenses = query.getResultList(); if (licenses.size() == 1) { return licenses.get(0); } else { System.out.println("????"); System.out.println("????"); System.out.println("????"); System.out.println("????"); System.out.println("????"); System.out.println("????"); System.out.println("????"); } License license = new License(); return license; } ////// public List<License> searchLicenses(String searchType, Object keyWord, int page, int rows) { String jpql = new String(); int head = (page - 1) * rows; if (searchType.equals("1")) { jpql = "select lic from License lic where lic.entCode =:keyWord order by lic.licenseCode"; } if (searchType.equals("???")) { jpql = "select lic from License lic where lic.licTypeCode =:keyWord order by lic.licenseCode"; } if (searchType.equals("")) { jpql = "select lic from License lic where lic.uploadDate =:keyWord order by lic.licenseCode"; } if (searchType.equals("")) { jpql = "select lic from License lic where lic.expireDate =:keyWord order by lic.licenseCode"; } if (searchType.equals("?")) { jpql = "select lic from License lic where lic.isExpire =:keyWord order by lic.licenseCode"; } TypedQuery<License> query = em().createQuery(jpql, License.class); //query.setHint(QueryHints.RESULT_TYPE, ResultType.Map); query.setParameter("keyWord", keyWord); query.setFirstResult(head); query.setMaxResults(rows); List<License> list = query.getResultList(); return list; } public Integer sumOfSearch(String searchType, Object keyWord) { String jpql = new String(); // // if (searchType.equals("???")) { if (searchType.equals("???")) { jpql = "select lic from License lic where lic.licTypeCode =:keyWord order by lic.licenseCode"; } if (searchType.equals("")) { jpql = "select lic from License lic where lic.uploadDate =:keyWord order by lic.licenseCode"; } if (searchType.equals("")) { jpql = "select lic from License lic where lic.expireDate =:keyWord order by lic.licenseCode"; } if (searchType.equals("?")) { jpql = "select lic from License lic where lic.isExpire =:keyWord order by lic.licenseCode"; } TypedQuery<License> query = em().createQuery(jpql, License.class); //query.setHint(QueryHints.RESULT_TYPE, ResultType.Map); query.setParameter("keyWord", keyWord); int sum = ((query.getResultList().size()) - 1) / PublicVariable.rows + 1; return sum; } public boolean delete(int companyCode, int licenseCode) { License license = findByCompanyCodeAndLicenseCode(companyCode, licenseCode); if (license != null) { em().remove(license); //? String path = license.getImagePath(); if (!(path == null)) { File file = new File(path); if (file.isDirectory()) { File[] subFiles = file.listFiles(); for (int i = 0; i < subFiles.length; i++) { subFiles[i].delete(); } } file.delete(); } return true; } return false; } private License findByCompanyCodeAndLicenseCode(int companyCode, int licenseCode) { String jpql = "select l from License l where l.entCode = :entCode AND l.licenseCode = :licenseCode"; TypedQuery<License> query = em().createQuery(jpql, License.class); // query.setHint(QueryHints.RESULT_TYPE, ResultType.Map); query.setParameter("entCode", companyCode); query.setParameter("licenseCode", licenseCode); List<License> licenses = query.getResultList(); if (licenses.size() == 1) return licenses.get(0); else return null; } public String getLicenseImgSrc(int companyCode, int licenseCode) { License l = findByCompanyCodeAndLicenseCode(companyCode, licenseCode); if (l != null) { return l.getImagePath(); } return null; } public boolean mod(License license) { try { em().merge(license); return true; } catch (Exception e) { return false; } } public Integer sum(int rows) { String jpql = "select lic from License lic where 1=1"; TypedQuery<License> query = em().createQuery(jpql, License.class); //query.setHint(QueryHints.RESULT_TYPE, ResultType.Map); int SUM = ((query.getResultList().size()) - 1) / rows + 1; return SUM; } public List<License> getAllLicenseList() { String jpql = "select lic from License lic where 1=1"; TypedQuery<License> query = em().createQuery(jpql, License.class); return query.getResultList(); } }