javaweb批量删除

以下是JavaWeb批量删除的示例代码：

1.在jsp页面中添加一个checkbox用于选择要删除的数据：

<form action="deleteBatch" method="post">
    <table>
        <thead>
            <tr>
                <th><input type="checkbox" id="checkAll"></th>
                <th>id</th>
                <th>name</th>
                <th>操作</th>
            </tr>
        </thead>
        <tbody>
            <c:forEach items="${list}" var="brand">
                <tr>
                    <td><input type="checkbox" name="ids" value="${brand.id}"></td>
                    <td>${brand.id}</td>
                    <td>${brand.name}</td>
                    <td><a href="delete?id=${brand.id}">删除</a></td>
                </tr>
            </c:forEach>
        </tbody>
    </table>
    <input type="submit" value="批量删除">
</form>

2.在servlet中获取选中的id并调用service层的方法进行批量删除：

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    String[] ids = request.getParameterValues("ids");
    BrandService brandService = new BrandServiceImpl();
    brandService.deleteByIds(ids);
    response.sendRedirect(request.getContextPath() + "/list");}

3.在service层中实现批量删除的方法：

@Override
public void deleteByIds(String[] ids) {
    brandMapper.deleteByIds(ids);
}

4.在dao层中实现批量删除的方法：

void deleteByIds(@Param("ids") String[] ids);