hibernate HQL查询以及原生SQL查询参数类型的区别

1，HQL查询语句的时候，要求传递的参数和实体类中的参数类型一致，比如下面的代码：

public TerminalStatusHistory findRecentlyByTime2(String gid, String mid, String sn, Date startTime) {
		StringBuilder sb = new StringBuilder();
		sb.append(
				"SELECT new TerminalStatusHistory(tsh.id,tsh.gid,tsh.mid,tsh.sn,tsh.status,max(tsh.createTime),tsh.detail) FROM TerminalStatusHistory as tsh ");
		sb.append("WHERE (tsh.createTime<:createTime or tsh.createTime=:createTime1) AND tsh.sn=:sn");
		if (StringUtils.isNotEmpty(gid) && StringUtils.isNotEmpty(mid)) {
			sb.append(" and tsh.gid=:gid AND tsh.mid=:mid");
		}
		Query query = this.getSession().createQuery(sb.toString());
		query.setTimestamp("createTime", startTime);
		query.setTimestamp("createTime1", startTime);
		query.setString("sn", sn);
		if (StringUtils.isNotEmpty(gid) && StringUtils.isNotEmpty(mid)) {
			query.setString("gid", gid);
			query.setString("mid", mid);
		}
		List<TerminalStatusHistory> list = query.list();
		return list.size() > 0 ? list.get(0) : null;
	}

query.setTimestamp("createTime1", startTime);
query.setString("sn", sn);

是什么类型就必须对应起来

2，原生SQL查询中的参数，都是基本类型的，没有复杂类型，所以像date类型的要转换为字符串类型

public TerminalStatusHistory findRecentlyByTime(String gid, String mid, String sn, Date startTime) {
		StringBuilder sb = new StringBuilder();
		sb.append("SELECT *,MAX(create_time) FROM sys_terminal_status_history " + "WHERE create_time <? AND sn=?");
		if (StringUtils.isNotEmpty(gid) && StringUtils.isNotEmpty(mid)) {
			sb.append(" AND gid=? AND mid=?");
		}
		SQLQuery sqlQuery = this.getSession().createSQLQuery(sb.toString());
		String P2 = "yyyy-MM-dd HH:mm:ss";
		String time=Tools.getFormatDate(startTime, P2);
		sqlQuery.setString(0, time);
		sqlQuery.setString(1, sn);
		if (StringUtils.isNotEmpty(gid) && StringUtils.isNotEmpty(mid)) {
			sqlQuery.setString(2, gid);
			sqlQuery.setString(3, mid);
		}
		TerminalStatusHistory terminalStatusHistory = null;
		List<Object[]> list = sqlQuery.list();
		// iterator遍历
		Iterator its = list.iterator();
		while (its.hasNext()) {
			Object[] a = (Object[]) its.next();
			if (a[0] != null) {
				terminalStatusHistory = new TerminalStatusHistory();
				BigInteger bigInteger = (BigInteger) a[0];
				terminalStatusHistory.setId(bigInteger.longValue());
				terminalStatusHistory.setGid((String) a[1]);
				terminalStatusHistory.setMid((String) a[2]);
				terminalStatusHistory.setSn((String) a[3]);
				terminalStatusHistory.setStatus((int) a[4]);
				terminalStatusHistory.setCreateTime((Timestamp) a[5]);
				terminalStatusHistory.setDetail((String) a[6]);
			}
		}
		return terminalStatusHistory;
		// return null;
	}

String P2 = "yyyy-MM-dd HH:mm:ss";
String time=Tools.getFormatDate(startTime, P2);
sqlQuery.setString(0, time);

这个要做转换才可以正确的查询

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 血的教训，搞了一个下午才搞出来什么原因，经验啊。。。

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