studentserviceimp.java

使用WEBWORK,SPRING,HIBERNATE编写的简单的添加

/**
 *文件功能：InnoDB free: 0 kB 
 */
package com.tech.service.imp;

import java.util.List;
import com.common.dao.DaoSupport;
import com.common.exception.BusinessException;
import com.common.util.BeanUtils;
import com.tech.model.Student;
import com.tech.service.StudentService;

/**
 *InnoDB free: 0 kB
 * @作者 徐建协
 * @日期 2009-02-05
 */
public class StudentServiceImp implements StudentService {
  private DaoSupport<Student,Long> studentDao;

  public void setStudentDao(DaoSupport<Student,Long> studentDao) {
    this.studentDao = studentDao;
  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#getEntity(java.io.Serializable)
   */
  public Student getEntity(Long id) throws BusinessException {
    try {
      return studentDao.getEntity(id);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("StudentServiceImp 不能获取主键为：" + id
          + "的数据" + e.toString());
    }
  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#loadEntity(java.io.Serializable)
   */
  public Student loadEntity(Long id) throws BusinessException {
    try {
      return studentDao.loadEntity(id);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("StudentServiceImp 不能获取主键为：" + id
          + "的数据" + e.toString());
    }
  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#removeEntity(java.lang.Object)
   */
  public void removeEntity(Student entity) throws BusinessException {
    try {
      studentDao.removeEntity(entity);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("删除异常:"
          + e.getMessage());
    }

  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#removeEntity(T[])
   */
  public void removeEntity(Student[] array) throws BusinessException {
    try {
      studentDao.removeEntity(array);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("删除异常:"
          + e.getMessage());
    }

  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#saveEntity(java.lang.Object)
   */
  public void saveEntity(Student entity) throws BusinessException {
    try {
      studentDao.saveEntity(entity);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("添加异常:"
          + e.getMessage());
    }

  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#saveEntity(T[])
   */
  public void saveEntity(Student[] array) throws BusinessException {
    try {
      studentDao.saveEntity(array);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("添加异常:"
          + e.getMessage());
    }

  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#updateEntity(java.lang.Object)
   */
  public void updateEntity(Student entity) throws BusinessException {
    try {
      
      Student entityLoad = studentDao.getEntity(entity.getId());
      // 拷贝不需要更新的字段内容
      //PropertyUtils.copyProperties(entityLoad,entity);
      BeanUtils.copyProperties(entityLoad,entity);
      studentDao.updateEntity(entityLoad);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("更新异常:"
          + e.getMessage());
    }

  }

  /* (non-Javadoc)
   * @see com.common.service.BaseService#updateEntity(T[])
   */
  public void updateEntity(Student[] array) throws BusinessException {
    try {
      studentDao.updateEntity(array);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("更新异常:"
          + e.getMessage());
    }

  }
  
  public boolean isExists(Student t,List<String> names) throws BusinessException{
    try {
      return studentDao.isExists(t,names);
    } catch (Exception e) {
      e.printStackTrace();
      throw new BusinessException("查找异常:"
          + e.getMessage());
    } 
  }

}