.bank {
    background: url("../images/bank_list.png") no-repeat scroll 0 0 transparent;
    cursor: pointer;
    display: block;
    height: 32px;
    width: 140px;
    text-indent: -9999px;
    vertical-align: 0;
}

.bank_1 {
    background-position: 0 0;
}

.bank_2 {
    background-position: 0 -35px;
}

.bank_3 {
    background-position: 0 -70px;
}

.bank_4 {
    background-position: 0 -105px;
}

 <tr th:each="listData:${pageResult.listData}">
                        <td>
                            <div  th:class="‘bank bank_‘+${listData.bankName}"></div>//通过修改${listData.bankName}，赋给div不同的样式。不同的样式对应不同的图片背景
                        </td>
                        <td>[[${listData.accountName}]]</td>
</tr>