lendrecorddao.java~29~

对2000元以上的资产管理

package com.cdaccp.dao;

import com.cdaccp.entity.LendRecord;
import java.util.*;
import java.sql.*;
import com.util.DBAccess;

/**
 * 用于对资产借用表进行增删改查操作
 *
 */
public class LendRecordDAO {

  /**
   * 添加借用记录
   * @param lendRecord LendRecord 借用记录对象
   */
  public boolean insert(LendRecord lendRecord){
    Connection con = DBAccess.getConnection();
    PreparedStatement pst = null;
    String sql = "insert lendrecord (assetid,empid,usedate,outlender,remarks) values(?,?,?,?,?)";
    try {
      pst = con.prepareStatement(sql);
      pst.setInt(1,lendRecord.getAssetId());
      pst.setInt(2,lendRecord.getEmpId());
      pst.setString(3,lendRecord.getUsedate());
      pst.setInt(4,lendRecord.getOutLender());
      pst.setString(5,lendRecord.getRemarks());
      int i = pst.executeUpdate();
      if(i>0){
        return true;
      }
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }finally{
      DBAccess.closeStatement(pst);
      DBAccess.closeConnection(con);
    }
    return false;
  }

  /**
   * 获取所有借用记录
   * @return List 借用记录对象集合，如果没有借用记录则返回null
   */
  public List loadAll(int i){
    List list = null;
    Connection con = DBAccess.getConnection();
    PreparedStatement pst = null;
    ResultSet rs = null;
    String sql = "select * from lendrecord";
    try {
      if (i==0) {
        sql = "select * from lendrecord where returnDate is null";
      }
      pst = con.prepareStatement(sql);
      rs = pst.executeQuery();
      list = new ArrayList();
      while(rs.next()){
        LendRecord lend = new LendRecord();
        lend.setAssetId(rs.getInt(2));
        lend.setEmpId(rs.getInt(3));
        lend.setUsedate(rs.getString(4));
        lend.setOutLender(rs.getInt(6));
        lend.setRemarks(rs.getString(8));
        list.add(lend);
      }
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }finally{
      DBAccess.closeResultSet(rs);
      DBAccess.closeStatement(pst);
      DBAccess.closeConnection(con);
    }
    return list;
  }

  /**
   * 查询某资产的所有借用记录
   * @param assetId int  资产编号
   * @return List 借用记录对象集合，如果没有借用记录则返回null
   */
  public List loadRecordByAssetId(int assetId){
    List list = null;
    return list;
  }
  /**
   * 归还资产
   */
  public boolean updateLendRecord(LendRecord lend){
    boolean b = false;
    Connection con  = DBAccess.getConnection();
    PreparedStatement pst = null;
    ResultSet rs = null;
    String sql =
        "update lendRecord set returnDate = ? ,inlender = ? ,remarks = ? where  assetid = ? and returnDate is null";
    try {
      pst = con.prepareStatement(sql);
      pst.setString(1,lend.getReturnDate());
      pst.setInt(2,lend.getInLender());
      pst.setString(3,lend.getRemarks());
      pst.setInt(4,lend.getAssetId());
      int i = pst.executeUpdate();
      if (i > 0) {
        b = true;
      }
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }finally{
      DBAccess.closeStatement(pst);
      DBAccess.closeConnection(con);
    }
    return b;
  }

}