• Java单体应用


    原文地址:http://www.work100.net/training/monolithic-project-iot-cloud-admin-manager-search.html
    更多教程:光束云 - 免费课程

    搜索功能

    序号 文内章节 视频
    1 概述 -
    2 使用动态SQL -
    3 修改AuthManagerDao接口 -
    4 修改AuthManagerService接口 -
    5 定义搜索器ManagerSearcher -
    6 修改AuthManagerServiceImpl实现 -
    7 修改ManagerController -
    8 修改视图文件 -
    9 测试验证 -
    10 实例源码 -

    请参照如上章节导航进行阅读

    1.概述

    接下来实现 账户列表 页面的 搜索功能,预期实现的画面效果如下:

    1.1.简单搜索

    1.2.复杂搜索

    2.使用动态SQL

    因搜索功能的查询条件是动态变化的,所以我们的查询语句也需要动态生成,这里就需要使用我们前述章节 MyBatis 动态 SQL 讲述的知识。

    我们在 AuthManagerMapper.xml 映射文件中新增一个 select 语句 search,代码如下:

    <select id="search" resultType="AuthManager">
        SELECT
          <include refid="authManagerColumns" />
        FROM
          auth_manager AS a
        <where>
            <if test="userName != null and userName != ''">
                AND a.user_name LIKE CONCAT('%', #{userName}, '%')
            </if>
            <if test="roles != null and roles != ''">
                AND a.roles LIKE CONCAT('%', #{roles}, '%')
            </if>
            <if test="status != -1">
                AND a.status = #{status}
            </if>
        </where>
        ORDER BY a.id DESC
    </select>
    

    3.修改AuthManagerDao接口

    增加 search 方法,代码如下:

    /**
     * 搜索
     *
     * @param authManager
     * @return
     */
    List<AuthManager> search(AuthManager authManager);
    

    4.修改AuthManagerService接口

    增加 search 方法,代码如下:

    /**
     * 搜索
     *
     * @param managerSearcher 搜索器
     * @return
     */
    List<AuthManager> search(ManagerSearcher managerSearcher);
    

    这里面我们引入了 ManagerSearcher 搜索器类,该类用于传递查询参数,下面将完成其实现代码

    5.定义搜索器ManagerSearcher

    5.1.BaseSearcher 类

    iot-cloud-commons 项目下的 net.work100.training.stage2.iot.cloud.commons.dto 包中新增一个 BaseSearcher 类,代码如下:

    package net.work100.training.stage2.iot.cloud.commons.dto;
    
    import java.io.Serializable;
    
    /**
     * <p>Title: Searcher</p>
     * <p>Description: </p>
     *
     * @author liuxiaojun
     * @date 2020-03-08 16:45
     * ------------------- History -------------------
     * <date>      <author>       <desc>
     * 2020-03-08   liuxiaojun     初始创建
     * -----------------------------------------------
     */
    public abstract class BaseSearcher implements Serializable {
        private String keyword;
        private boolean advanced;
    
        public String getKeyword() {
            return keyword;
        }
    
        public void setKeyword(String keyword) {
            this.keyword = keyword;
        }
    
        public boolean isAdvanced() {
            return advanced;
        }
    
        public void setAdvanced(boolean advanced) {
            this.advanced = advanced;
        }
    }
    

    5.2.ManagerSearcher 类

    iot-cloud-web-admin 项目下增加一个 net.work100.training.stage2.iot.cloud.web.admin.dto.auth 类包,然后该类包下新建一个 ManagerSearcher 类,代码如下:

    package net.work100.training.stage2.iot.cloud.web.admin.dto.auth;
    
    import net.work100.training.stage2.iot.cloud.commons.dto.BaseSearcher;
    
    /**
     * <p>Title: ManagerSearcher</p>
     * <p>Description: </p>
     * <p>Url: http://www.work100.net/training/monolithic-project-iot-cloud-admin.html</p>
     *
     * @author liuxiaojun
     * @date 2020-03-08 17:02
     * ------------------- History -------------------
     * <date>      <author>       <desc>
     * 2020-03-08   liuxiaojun     初始创建
     * -----------------------------------------------
     */
    public class ManagerSearcher extends BaseSearcher {
    
        private String userName;
        private String roles;
        private int status;
    
        public String getUserName() {
            return userName;
        }
    
        public void setUserName(String userName) {
            this.userName = userName;
        }
    
        public String getRoles() {
            return roles;
        }
    
        public void setRoles(String roles) {
            this.roles = roles;
        }
    
        public int getStatus() {
            return status;
        }
    
        public void setStatus(int status) {
            this.status = status;
        }
    }
    

    6.修改AuthManagerServiceImpl实现

    实现 search 方法,代码如下:

    @Override
    public List<AuthManager> search(ManagerSearcher managerSearcher) {
        AuthManager authManager = new AuthManager();
        if (!managerSearcher.isAdvanced()) {
            authManager.setUserName(managerSearcher.getKeyword());
            authManager.setRoles("");
            authManager.setStatus(-1);
        } else {
            authManager.setUserName(managerSearcher.getUserName());
            authManager.setRoles(managerSearcher.getRoles());
            authManager.setStatus(managerSearcher.getStatus());
        }
        return authManagerDao.search(authManager);
    }
    

    7.修改ManagerController

    7.1.修改 list 方法

    @RequestMapping(value = "list", method = RequestMethod.GET)
    public String list(Model model) {
        ManagerSearcher managerSearcher = new ManagerSearcher();
        managerSearcher.setKeyword("");
        managerSearcher.setAdvanced(false);
        managerSearcher.setRoles("");
        managerSearcher.setStatus(-1);
        model.addAttribute(managerSearcher);
    
        List<AuthManager> authManagers = authManagerService.selectAll();
        model.addAttribute("authManagers", authManagers);
        return "auth/manager_list";
    }
    

    7.2.新增 search 方法

    @RequestMapping(value = "search", method = RequestMethod.POST)
    public String search(ManagerSearcher managerSearcher, Model model) {
    
        List<AuthManager> authManagers = authManagerService.search(managerSearcher);
        model.addAttribute("managerSearcher", managerSearcher);
        model.addAttribute("authManagers", authManagers);
        return "auth/manager_list";
    }
    

    8.修改视图文件

    下面修改视图文件 manager_list.jsp 的实现代码。

    8.1.引入 form 表单标签库

    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
    

    8.2.搜索功能实现

    修改 <div class="card"> 标签部分代码,修改后的代码如下:

    <form:form action="/auth/manager/search" method="post" modelAttribute="managerSearcher">
        <form:hidden path="advanced" />
        <div class="card">
            <div class="card-header">
                <div class="card-title">
                    <div class="btn-group">
                        <a href="/auth/manager/add" type="button" class="btn btn-primary">新增</a>
                        <button type="button" class="btn btn-default">更多...</button>
                        <button type="button" class="btn btn-default dropdown-toggle dropdown-icon" data-toggle="dropdown">
                            <span class="sr-only">Toggle Dropdown</span>
                            <div class="dropdown-menu" role="menu">
                                <a class="dropdown-item" href="#">批量锁定</a>
                                <a class="dropdown-item" href="#">批量解锁</a>
                                <div class="dropdown-divider"></div>
                                <a class="dropdown-item" href="#">批量删除</a>
                            </div>
                        </button>
                    </div>
                    <div class="btn-group">
                        <a href="/auth/manager/list" type="button" class="btn btn-default" title="重新加载"><i class="fas fa-redo"></i></a>
                        <button type="button" class="btn btn-default" title="打印"><i class="fas fa-print"></i></button>
                        <button type="button" class="btn btn-default" title="下载"><i class="fas fa-download"></i></button>
                    </div>
                </div>
                <div id="btnOpen" class="card-tools" style="display: ${managerSearcher.advanced?"none":"block"};">
                    <div class="input-group" style="padding-top: 5px;">
                        <form:input path="keyword" cssClass="form-control" placeholder="关键字:用户名" />
                        <div class="input-group-append">
                            <button type="submit" class="btn btn-default">搜索
                                <i class="fas fa-search"></i></button>
                        </div>
                        <div class="input-group-append">
                            <button type="button" class="btn btn-default" title="展开更多" onclick="showSearcher()">
                                展开 <i class="fas fa-angle-double-down"></i></button>
                        </div>
                    </div>
                </div>
                <div id="btnClose" class="card-tools" style="display: ${managerSearcher.advanced?"block":"none"};">
                    <div class="input-group" style="padding-top: 5px;">
                        <div class="input-group-append">
                            <button type="button" class="btn btn-default" title="合拢更多" onclick="hideSearcher()">
                                合拢 <i class="fas fa-angle-double-up"></i></button>
                        </div>
                    </div>
                </div>
            </div>
            <div class="card-header" id="searcher" style="display: ${managerSearcher.advanced?"block":"none"};background-color: #f2f4f8;">
                <div class="row">
                    <div class="col-md-9">
                        <div class="input-group">
                            <form:input path="userName" cssClass="form-control" placeholder="用户名" />
                            <form:select path="roles" class="form-control select2" style=" 150px;">
                                <option value="" ${managerSearcher.roles == "" ? "selected" : ""}>
                                    角色
                                </option>
                                <option value="admin" ${managerSearcher.roles == "admin" ? "selected" : ""}>
                                    admin
                                </option>
                                <option value="editor" ${managerSearcher.roles == "editor" ? "selected" : ""}>
                                    editor
                                </option>
                            </form:select>
                            <form:select path="status" class="form-control select2" style=" 150px;">
                                <option value="-1" ${managerSearcher.status == -1 ? "selected" : ""}>
                                    状态
                                </option>
                                <option value="0" ${managerSearcher.status == 0 ? "selected" : ""}>
                                    未激活
                                </option>
                                <option value="1" ${managerSearcher.status == 1 ? "selected" : ""}>
                                    激活
                                </option>
                                <option value="2" ${managerSearcher.status == 2 ? "selected" : ""}>
                                    锁定
                                </option>
                                <option value="3" ${managerSearcher.status == 3 ? "selected" : ""}>
                                    删除
                                </option>
                            </form:select>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="btn-group">
                            <button type="submit" class="btn btn-primary">搜 索</button>
                        </div>
                        <div class="btn-group">
                            <a href="/auth/manager/list" type="button" class="btn btn-default">重 置</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="card-body table-responsive p-0">
                <table class="table table-hover text-nowrap">
                    <thead>
                    <tr>
                        <th>ID</th>
                        <th>用户名</th>
                        <th>角色</th>
                        <th>超级用户</th>
                        <th>状态</th>
                        <th>更新时间</th>
                        <th width="120px" align="center">操作</th>
                    </tr>
                    </thead>
                    <tbody>
                    <c:forEach items="${authManagers}" var="authManager">
                        <tr>
                            <td>${authManager.id}</td>
                            <td>${authManager.userName}</td>
                            <td>${authManager.roles}</td>
                            <td>${authManager.superuser?"是":"否"}</td>
                            <td>
                                <c:choose>
                                    <c:when test="${authManager.status==0}">
                                        <label class="text-muted">未激活</label>
                                    </c:when>
                                    <c:when test="${authManager.status==1}">
                                        <label class="text-success">已激活</label>
                                    </c:when>
                                    <c:when test="${authManager.status==2}">
                                        <label class="text-warning">锁定</label>
                                    </c:when>
                                    <c:when test="${authManager.status==3}">
                                        <label class="text-danger">被删除</label>
                                    </c:when>
                                </c:choose>
                            </td>
                            <td>
                                <fmt:formatDate value="${authManager.updated}" pattern="yyyy-MM-dd HH:mm:ss" /></td>
                            <td>
                                <div class="btn-group">
                                    <a href="#" type="button" class="btn btn-default btn-sm"><i class="fas fa-eye"></i></a>
                                    <a href="/auth/manager/edit/${authManager.userKey}" type="button" class="btn btn-primary btn-sm"><i class="fas fa-edit"></i></a>
                                    <button type="button" class="btn btn-danger btn-sm" data-toggle="modal" data-target="#modal-operate-confirm" data-whatever="${authManager.userKey}">
                                        <i class="fas fa-trash"></i></button>
                                </div>
                            </td>
                        </tr>
                    </c:forEach>
                    </tbody>
                </table>
            </div>
            <!-- /.card-body -->
        </div>
        <!-- /.card -->
    </form:form>
    

    8.3.修改 JS 脚本

    修改页面中自定义的 JS 脚本,增加 select 控件的初始化,以及增加 高级搜索 表单的显示隐藏功能,代码如下:

    $(function() {
        //Initialize Select2 Elements
        $('.select2').select2();
    
        //Initialize Select2 Elements
        $('.select2bs4').select2({
            theme: 'bootstrap4'
        });
    
        if (${baseResult.status != null && baseResult.status == 200}) {
            const Toast = Swal.mixin({
                toast: true,
                position: 'top',
                showConfirmButton: false,
                timer: 2000,
                timerProgressBar: true
            })
    
            Toast.fire({
                type: 'success',
                title: '${baseResult.message}'
            })
        }
    
        $('#modal-operate-confirm').on('show.bs.modal', function(event) {
            let trigger = $(event.relatedTarget)
            let userKey = trigger.data('whatever')
            let modal = $(this)
            let ok = modal.find('.modal-footer button')[1]
            $(ok).click(function(e) {
                location.href = '/auth/manager/delete/' + userKey
            })
        })
    })
    
    // 显示高级搜索
    function showSearcher() {
        $("#advanced").val(true);
        $("#searcher").css('display', 'block');
        $("#btnOpen").css('display', 'none');
        $("#btnClose").css('display', 'block');
    }
    
    // 隐藏高级搜索
    function hideSearcher() {
        $("#advanced").val(false);
        $("#searcher").css('display', 'none');
        $("#btnOpen").css('display', 'block');
        $("#btnClose").css('display', 'none');
    }
    

    8.4.完整代码

    视图 manager_list.jsp 文件的完整代码如下:

    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
    <!DOCTYPE html>
    <html>
    <head>
        <title>查询列表 - 后台账户 | IoT-Admin</title>
        <jsp:include page="../includes/resources_head.jsp" />
    </head>
    <body class="hold-transition sidebar-mini">
    <div class="wrapper">
    
        <jsp:include page="../includes/layout_header.jsp" />
    
        <jsp:include page="../includes/layout_left.jsp" />
    
        <!-- Content Wrapper. Contains page content -->
        <div class="content-wrapper">
            <!-- Content Header (Page header) -->
            <div class="content-header">
                <div class="container-fluid">
                    <div class="row mb-2">
                        <div class="col-sm-6">
                            <h1 class="m-0 text-dark">查询列表</h1>
                        </div><!-- /.col -->
                        <div class="col-sm-6">
                            <ol class="breadcrumb float-sm-right">
                                <li class="breadcrumb-item"><a href="#">后台账户</a></li>
                                <li class="breadcrumb-item active">查询列表</li>
                            </ol>
                        </div><!-- /.col -->
                    </div><!-- /.row -->
                </div><!-- /.container-fluid -->
            </div>
            <!-- /.content-header -->
    
            <!-- Main content -->
            <div class="content">
                <div class="container-fluid">
                    <div class="row">
                        <div class="col">
                            <form:form action="/auth/manager/search" method="post" modelAttribute="managerSearcher">
                                <form:hidden path="advanced" />
                                <div class="card">
                                    <div class="card-header">
                                        <div class="card-title">
                                            <div class="btn-group">
                                                <a href="/auth/manager/add" type="button" class="btn btn-primary">新增</a>
                                                <button type="button" class="btn btn-default">更多...</button>
                                                <button type="button" class="btn btn-default dropdown-toggle dropdown-icon" data-toggle="dropdown">
                                                    <span class="sr-only">Toggle Dropdown</span>
                                                    <div class="dropdown-menu" role="menu">
                                                        <a class="dropdown-item" href="#">批量锁定</a>
                                                        <a class="dropdown-item" href="#">批量解锁</a>
                                                        <div class="dropdown-divider"></div>
                                                        <a class="dropdown-item" href="#">批量删除</a>
                                                    </div>
                                                </button>
                                            </div>
                                            <div class="btn-group">
                                                <a href="/auth/manager/list" type="button" class="btn btn-default" title="重新加载"><i class="fas fa-redo"></i></a>
                                                <button type="button" class="btn btn-default" title="打印"><i class="fas fa-print"></i></button>
                                                <button type="button" class="btn btn-default" title="下载"><i class="fas fa-download"></i></button>
                                            </div>
                                        </div>
                                        <div id="btnOpen" class="card-tools" style="display: ${managerSearcher.advanced?"none":"block"};">
                                            <div class="input-group" style="padding-top: 5px;">
                                                <form:input path="keyword" cssClass="form-control" placeholder="关键字:用户名" />
                                                <div class="input-group-append">
                                                    <button type="submit" class="btn btn-default">搜索
                                                        <i class="fas fa-search"></i></button>
                                                </div>
                                                <div class="input-group-append">
                                                    <button type="button" class="btn btn-default" title="展开更多" onclick="showSearcher()">
                                                        展开 <i class="fas fa-angle-double-down"></i></button>
                                                </div>
                                            </div>
                                        </div>
                                        <div id="btnClose" class="card-tools" style="display: ${managerSearcher.advanced?"block":"none"};">
                                            <div class="input-group" style="padding-top: 5px;">
                                                <div class="input-group-append">
                                                    <button type="button" class="btn btn-default" title="合拢更多" onclick="hideSearcher()">
                                                        合拢 <i class="fas fa-angle-double-up"></i></button>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                    <div class="card-header" id="searcher" style="display: ${managerSearcher.advanced?"block":"none"};background-color: #f2f4f8;">
                                        <div class="row">
                                            <div class="col-md-9">
                                                <div class="input-group">
                                                    <form:input path="userName" cssClass="form-control" placeholder="用户名" />
                                                    <form:select path="roles" class="form-control select2" style=" 150px;">
                                                        <option value="" ${managerSearcher.roles == "" ? "selected" : ""}>
                                                            角色
                                                        </option>
                                                        <option value="admin" ${managerSearcher.roles == "admin" ? "selected" : ""}>
                                                            admin
                                                        </option>
                                                        <option value="editor" ${managerSearcher.roles == "editor" ? "selected" : ""}>
                                                            editor
                                                        </option>
                                                    </form:select>
                                                    <form:select path="status" class="form-control select2" style=" 150px;">
                                                        <option value="-1" ${managerSearcher.status == -1 ? "selected" : ""}>
                                                            状态
                                                        </option>
                                                        <option value="0" ${managerSearcher.status == 0 ? "selected" : ""}>
                                                            未激活
                                                        </option>
                                                        <option value="1" ${managerSearcher.status == 1 ? "selected" : ""}>
                                                            激活
                                                        </option>
                                                        <option value="2" ${managerSearcher.status == 2 ? "selected" : ""}>
                                                            锁定
                                                        </option>
                                                        <option value="3" ${managerSearcher.status == 3 ? "selected" : ""}>
                                                            删除
                                                        </option>
                                                    </form:select>
                                                </div>
                                            </div>
                                            <div class="col-md-3">
                                                <div class="btn-group">
                                                    <button type="submit" class="btn btn-primary">搜 索</button>
                                                </div>
                                                <div class="btn-group">
                                                    <a href="/auth/manager/list" type="button" class="btn btn-default">重 置</a>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                    <div class="card-body table-responsive p-0">
                                        <table class="table table-hover text-nowrap">
                                            <thead>
                                            <tr>
                                                <th>ID</th>
                                                <th>用户名</th>
                                                <th>角色</th>
                                                <th>超级用户</th>
                                                <th>状态</th>
                                                <th>更新时间</th>
                                                <th width="120px" align="center">操作</th>
                                            </tr>
                                            </thead>
                                            <tbody>
                                            <c:forEach items="${authManagers}" var="authManager">
                                                <tr>
                                                    <td>${authManager.id}</td>
                                                    <td>${authManager.userName}</td>
                                                    <td>${authManager.roles}</td>
                                                    <td>${authManager.superuser?"是":"否"}</td>
                                                    <td>
                                                        <c:choose>
                                                            <c:when test="${authManager.status==0}">
                                                                <label class="text-muted">未激活</label>
                                                            </c:when>
                                                            <c:when test="${authManager.status==1}">
                                                                <label class="text-success">已激活</label>
                                                            </c:when>
                                                            <c:when test="${authManager.status==2}">
                                                                <label class="text-warning">锁定</label>
                                                            </c:when>
                                                            <c:when test="${authManager.status==3}">
                                                                <label class="text-danger">被删除</label>
                                                            </c:when>
                                                        </c:choose>
                                                    </td>
                                                    <td>
                                                        <fmt:formatDate value="${authManager.updated}" pattern="yyyy-MM-dd HH:mm:ss" /></td>
                                                    <td>
                                                        <div class="btn-group">
                                                            <a href="#" type="button" class="btn btn-default btn-sm"><i class="fas fa-eye"></i></a>
                                                            <a href="/auth/manager/edit/${authManager.userKey}" type="button" class="btn btn-primary btn-sm"><i class="fas fa-edit"></i></a>
                                                            <button type="button" class="btn btn-danger btn-sm" data-toggle="modal" data-target="#modal-operate-confirm" data-whatever="${authManager.userKey}">
                                                                <i class="fas fa-trash"></i></button>
                                                        </div>
                                                    </td>
                                                </tr>
                                            </c:forEach>
                                            </tbody>
                                        </table>
                                    </div>
                                    <!-- /.card-body -->
                                </div>
                                <!-- /.card -->
                            </form:form>
                        </div>
                    </div>
                </div>
                <!-- /.container-fluid -->
            </div>
            <!-- /.content -->
    
            <div class="modal fade" id="modal-operate-confirm">
                <div class="modal-dialog">
                    <div class="modal-content">
                        <div class="modal-header">
                            <h4 class="modal-title">操作确认</h4>
                            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                                <span aria-hidden="true">&times;</span>
                            </button>
                        </div>
                        <div class="modal-body">
                            <p>操作后不可恢复,确定吗?</p>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
                            <button type="button" class="btn btn-primary">确定</button>
                        </div>
                    </div>
                    <!-- /.modal-content -->
                </div>
                <!-- /.modal-dialog -->
            </div>
            <!-- /.modal -->
        </div>
        <!-- /.content-wrapper -->
    
        <jsp:include page="../includes/layout_footer.jsp" />
    </div>
    <!-- ./wrapper -->
    <jsp:include page="../includes/resources_body.jsp" />
    
    <script>
    $(function() {
        //Initialize Select2 Elements
        $('.select2').select2();
    
        //Initialize Select2 Elements
        $('.select2bs4').select2({
            theme: 'bootstrap4'
        });
    
        if (${baseResult.status != null && baseResult.status == 200}) {
            const Toast = Swal.mixin({
                toast: true,
                position: 'top',
                showConfirmButton: false,
                timer: 2000,
                timerProgressBar: true
            })
    
            Toast.fire({
                type: 'success',
                title: '${baseResult.message}'
            })
        }
    
        $('#modal-operate-confirm').on('show.bs.modal', function(event) {
            let trigger = $(event.relatedTarget)
            let userKey = trigger.data('whatever')
            let modal = $(this)
            let ok = modal.find('.modal-footer button')[1]
            $(ok).click(function(e) {
                location.href = '/auth/manager/delete/' + userKey
            })
        })
    })
    
    // 显示高级搜索
    function showSearcher() {
        $("#advanced").val(true);
        $("#searcher").css('display', 'block');
        $("#btnOpen").css('display', 'none');
        $("#btnClose").css('display', 'block');
    }
    
    // 隐藏高级搜索
    function hideSearcher() {
        $("#advanced").val(false);
        $("#searcher").css('display', 'none');
        $("#btnOpen").css('display', 'block');
        $("#btnClose").css('display', 'none');
    }
    </script>
    </body>
    </html>
    

    9.测试验证

    重启 Tomcat 运行并验证搜索功能效果。

    10.实例源码

    实例源码已经托管到如下地址:


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  • 原文地址:https://www.cnblogs.com/liuxiaojun/p/training-monolithic-project-iot-cloud-admin-manager-search.html
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