Java代码里拼接SQL语句到mybatis的xml

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关键语句：

StringBuilder whereSql = new StringBuilder();

whereSql.append("SQL");

实现类：

	public List getList(Map<String, Object> map) {
		List<Map<String, Object>> rs = new ArrayList<Map<String, Object>>();
		try {
			StringBuilder whereSql = new StringBuilder();

			if (map.get("userName").toString().length()>0) {
				whereSql.append(" AND a.userName in ('" + map.get("userName").toString().replaceAll(",", "\',\'") + "')");//不为空时加入查询条件
			}
			if (map.get("CURRENTPAGE").toString().length()>0 && map.get("PAGESIZE").toString().length()>0) {//前端有传分页参数时就添加分页查询条件
				int currenpage = Integer.parseInt(map.get("CURRENTPAGE").toString());
				int pagesize = Integer.parseInt(map.get("PAGESIZE").toString());
				currenpage = ((currenpage - 1) * pagesize);
				whereSql.append(" limit " + currenpage + "," + pagesize);
			}

			rs = wmTblWorkorderMapper.getList(whereSql.toString());
			return rs;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}

mapper：

List<Map<String,Object>> getList(@Param("whereSql") String whereSql);

mapper对应的xml：

	<select id="getList" resultType="HashMap">
		SELECT * FROM user a WHERE 1=1 ${whereSql}
	</select>

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