Question

Java后台查询到的list怎么放到表格里，如果列有重复的就合并单元格

Answer 1

           <c:choose> <!-- 直接通过el表达式取 -->
                    <c:when test="${not empty list}">
                        <c:forEach items="${list}" var="u">
                            <tr>
                                <td>
                                <!-- 通过El表达式绑定数据 -->
                                    ${u.userName}
                                </td>
                                <td>
                                    ${u.password}
                                </td>
                                <td>
                                    ${u.loginName}
                                </td>
                                <td>
                                    ${u.sex}
                                </td>
                                <td>
                                    ${u.mobile}
                                </td>
                                <td>
                                    ${u.email}
                                </td>
                                <td>
                                  <a href="<%=request.getContextPath() %>/userServlet?method=userrole&userid=${u.userId}">分配角色</a>
                                </td>
                            </tr>
                        </c:forEach>
                    </c:when>
                    <c:otherwise>
                        <tr>
                            <td colspan="7">
                                没有你要查找的数据
                            </td>
                        </tr>
                    </c:otherwise>
                </c:choose>