在上篇博客我们实现了左侧树形菜单与选项卡，今天我们来实现最重要的部分——数据表格的增删改查
将rid身份用中文表示，即将 rid 转换为对应的角色名称
SELECT
u.*,
CASE
WHEN u.rid = '1' THEN '管理员'
WHEN u.rid = '2' THEN '发起者'
WHEN u.rid = '3' THEN '审批者'
WHEN u.rid = '4' THEN '参与者'
WHEN u.rid = '5' THEN '会议室管理员'
ELSE '其他'
END AS rname
FROM
t_oa_user u;
package com.zking.util;
import java.util.HashMap;
public class R extends HashMap{
public R data(String key, Object value) {
this.put(key, value);
return this;
}
/**
* data 数据传入 code返回结果成功还是失败 count分页
* @param code
* @param msg
* @return
*/
public static R ok(int code, String msg) {
R r = new R();
r.data("success", true).data("code", code).data("msg", msg);
return r;
}
public static R error(int code, String msg) {
R r = new R();
r.data("success", false).data("code", code).data("msg", msg);
return r;
}
public static R ok(int code, String msg,Object data) {
R r = new R();
r.data("success", true).data("code", code).data("msg", msg).data("data", data);
return r;
}
public static R ok(int code, String msg, long count, Object data) {
R r = new R();
r.data("success", true).data("code", code).data("msg", msg).data("count", count).data("data", data);
return r;
}
}
data方法：该方法用于向R对象中添加键值对数据，并返回R对象本身，以支持链式调用
ok方法和error方法：这些方法用于返回通用格式的响应结果。
分页信息：代码中提供了一个构建分页响应结果的方法ok，其中包含了count和data两个部分。
package com.xqx.dao;
import java.util.List;
import java.util.Map;
import com.xqx.entity.User;
import com.zking.util.BaseDao;
import com.zking.util.MD5;
import com.zking.util.PageBean;
import com.zking.util.StringUtils;
/**
* @author W许潜行 2023年7月11日 上午11:20:43
*/
public class UserDao extends BaseDao<User> {
/**
* 查询所有用户
*
* @param user
* @param clz
* @param pageBean
* @return
* @throws Exception
*/
public List<User> list(User user, Class<User> clz, PageBean pageBean) throws Exception {
String sql = "select * from t_oa_user where 1=1";
return super.executeQuery(sql, clz, pageBean);
}
/**
* 查询所有用户角色
*
* @param user
* @param pageBean
* @return
* @throws Exception
*/
public List<Map<String, Object>> userRoles(User user, PageBean pageBean) throws Exception {
String sql = "SELECT\r\n" +
" u.*,\r\n" +
" CASE\r\n" +
" WHEN u.rid = '1' THEN '管理员'\r\n" +
" WHEN u.rid = '2' THEN '发起者'\r\n" +
" WHEN u.rid = '3' THEN '审批者'\r\n" +
" WHEN u.rid = '4' THEN '参与者'\r\n" +
" WHEN u.rid = '5' THEN '会议室管理员'\r\n" +
" ELSE '其他'\r\n" +
" END AS rname\r\n" +
"FROM\r\n" +
" t_oa_user u";
// 按照登录账号模糊查询
if (StringUtils.isNotBlank(user.getLoginName())) {
sql += " WHERE loginName LIKE '" + user.getLoginName() + "%'";
}
return super.executeQuery(sql, pageBean);
}
/**
* 新增用户
*
* @param user
* @throws Exception
*/
public int addUser(User user) throws Exception {
String sql = "insert into t_oa_user(name,loginName,pwd) values(?,?,?)";
return super.executeUpdate(sql, user, new String[] { "name", "loginName", "pwd" });
}
/**
* 编辑用户
*
* @param user
* @throws Exception
*/
public int editUser(User user) throws Exception {
String sql = "update t_oa_user set name=?,loginName=?, pwd=?" + " where id=?";
return super.executeUpdate(sql, user, new String[] { "name", "loginName", "pwd", "id" });
}
/**
* 删除用户
*
* @param user
* @throws Exception
*/
public int delUser(User user) throws Exception {
String sql = "delete from t_oa_user where id=?";
return super.executeUpdate(sql, user, new String[] { "id" });
}
/**
* 登录
*
* @param user
* @return
* @throws Exception
*/
public User login(User user) throws Exception {
String sql = "select * from t_oa_user where loginName='" + user.getLoginName() + "'and pwd='" + user.getPwd()
+ "'";
List<User> userList = super.executeQuery(sql, User.class, null);
if (userList.size() == 1) {
return userList.get(0);
}
return null;
}
/**
* 注册
*
* @param user
* @return
* @throws Exception
*/
public int register(User user) throws Exception {
String sql = "insert into t_oa_user(name,loginName,pwd,rid) values(?,?,?,4)";
return super.executeUpdate(sql, user, new String[] { "name", "loginName", "pwd" });
}
}
package com.xqx.web;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.xqx.dao.UserDao;
import com.xqx.entity.User;
import com.zking.framework.ActionSupport;
import com.zking.framework.ModelDriver;
import com.zking.util.PageBean;
import com.zking.util.R;
import com.zking.util.ResponseUtil;
/**
* @author W许潜行 2023年7月11日 上午11:20:35
*/
public class UserAction extends ActionSupport implements ModelDriver<User> {
User user = new User();
UserDao ud = new UserDao();
R R = new R();
public void login(HttpServletRequest req, HttpServletResponse resp) {
try {
User login = ud.login(user);
ResponseUtil.writeJson(resp, login);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void register(HttpServletRequest req, HttpServletResponse resp) {
try {
int register = ud.register(user);
ResponseUtil.writeJson(resp, register);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
* @param req
* @param resp
* @throws IOException
* @throws ServletException
*/
public void userRoles(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
try {
PageBean pageBean = new PageBean();
pageBean.setRequest(req);
List<Map<String, Object>> list = ud.userRoles(user, pageBean);
ResponseUtil.writeJson(resp, R.ok(0, "查询成功", pageBean.getTotal(), list));
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 用户新增
*
* @param req
* @param resp
* @return
* @throws IOException
* @throws ServletException
*/
public void addUser(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
try {
int addUser = ud.addUser(user);
if (addUser > 0) {
ResponseUtil.writeJson(resp, R.ok(200, "用户新增成功"));
} else {
ResponseUtil.writeJson(resp, R.error(0, "用户新增失败"));
}
ResponseUtil.writeJson(resp, addUser);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 用户编辑
*
* @param req
* @param resp
* @throws IOException
* @throws ServletException
*/
public void editUser(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
try {
int editUser = ud.editUser(user);
if (editUser > 0) {
ResponseUtil.writeJson(resp, R.ok(200, "用户编辑成功"));
} else {
ResponseUtil.writeJson(resp, R.error(0, "用户编辑失败"));
}
ResponseUtil.writeJson(resp, editUser);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 用户删除
*
* @param req
* @param resp
* @throws IOException
* @throws ServletException
*/
public void delUser(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
try {
int delUser = ud.delUser(user);
if (delUser > 0) {
ResponseUtil.writeJson(resp, R.ok(200, "用户删除成功"));
} else {
ResponseUtil.writeJson(resp, R.error(0, "用户删除失败"));
}
ResponseUtil.writeJson(resp, delUser);
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public User getModel() {
// TODO Auto-generated method stub
return user;
}
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<%@ include file="../../common/head.jsp"%>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
.layui-tab{
height: 100%;
}
</style>
</head>
<body>
<!-- 搜索栏 -->
<div class="layui-form-item">
<div class="layui-inline">
<label class="layui-form-label">用户名：</label>
<div class="layui-input-inline">
<input type="text" id="name" placeholder="请输入用户名" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-inline">
<div class="layui-input-inline">
<button id="btn_search" type="button" class="layui-btn layui-btn-normal">
<i class="layui-icon layui-icon-search"></i>
查询
</button>
<button id="btn_add" type="button" class="layui-btn">新增</button>
</div>
</div>
</div>
<!-- 数据表格及分页 -->
<table id="tb" lay-filter="tb" class="layui-table" style="margin-top:-15px;"></table>
<!-- 对话框（新增和编辑共用一个页面） -->
<table class="layui-hide" id="test" lay-filter="test"></table>
<script type="text/html" id="toolbarDemo">
<div class="layui-btn-container">
<button class="layui-btn layui-btn-sm" lay-event="getCheckData">获取选中行数据</button>
<button class="layui-btn layui-btn-sm" lay-event="getCheckLength">获取选中数目</button>
<button class="layui-btn layui-btn-sm" lay-event="isAll">验证是否全选</button>
</div>
</script>
<script type="text/html" id="barDemo">
<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a>
<a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>
</script>
<script type="text/javascript" src="static/js/system/userManage.js"></script>
</body>
</html>
let layer, $, table;
var row;
layui.use([ 'jquery', 'layer', 'table' ], function() {
layer = layui.layer, $ = layui.jquery, table = layui.table;
// 初始化数据表格
initTable();
// 绑定查询按钮的点击事件
$('#btn_search').click(function() {
query();
});
// 绑定新增按钮的点击事件
$('#btn_add').click(function() {
row = null;
open('新增');
});
});
// 1.初始化数据表格
function initTable() {
table.render({
elem : '#tb',
url : 'user.action?methodName=userRole',
toolbar : '#toolbarDemo' // 开启头部工具栏，并为其绑定左侧模板
,
defaultToolbar : [ 'filter', 'exports', 'print', { // 自定义头部工具栏右侧图标。如无需自定义，去除该参数即可
title : '提示',
layEvent : 'LAYTABLE_TIPS',
icon : 'layui-icon-tips'
} ],
title : '用户数据表',
cols : [ [ {
type : 'checkbox',
fixed : 'left'
}, {
field : 'id',
title : 'ID',
width : 80,
fixed : 'left',
unresize : true,
sort : true
}, {
field : 'loginName',
title : '账户名',
width : 120,
edit : 'text'
}, {
field : 'name',
title : '用户名',
width : 150,
edit : 'text',
templet : function(res) {
return '<em>' + res.name + '</em>'
}
}, {
field : 'pwd',
title : '密码',
width : 80,
edit : 'text',
sort : true
}, {
field : 'rname',
title : '角色名称',
width : 100
}, {
fixed : 'right',
title : '操作',
toolbar : '#barDemo',
width : 150
} ] ],
page : true
});
// 表格监控
table.on('tool(tb)', function(obj) {
//给行数据赋值
row = obj.data;
if (obj.event == "edit") {
open("编辑");
} else if (obj.event == "del") {
layer.confirm('确认删除吗?', {
icon : 3,
title : '提示'
}, function(index) {
$.post('user.action', {
'methodName' : 'del',
'id' : row.id
}, function(rs) {
if (rs.success) {
// 调用查询方法刷新数据
query();
} else {
layer.msg(rs.msg, function() {
});
}
}, 'json');
layer.close(index);
});
} else {
}
});
}
// 2.点击查询
function query() {
//表格重载
table.reload('tb', {
url : $("#ctx").val() + '/user.action', // 请求地址
method : 'POST', // 请求方式，GET或者POST
loading : true, // 是否显示加载条（默认 true）
page : true, // 是否分页
where : { // 设定异步数据接口的额外参数，任意设
'methodName' : 'userRole',
'name' : $('#name').val()
},
request : { // 自定义分页请求参数名
pageName : 'page', // 页码的参数名称，默认：page
limitName : 'rows' // 每页数据量的参数名，默认：limit
}
});
}
// 3.对话框
function open(title) {
layer.open({
type : 2, // layer提供了5种层类型。可传入的值有：0（信息框，默认）1（页面层）2（iframe层）3（加载层）4（tips层）
title : title,
area : [ '660px', '340px' ], // 宽高
skin : 'layui-layer-rim', // 样式类名
content : $("#ctx").val() + '/jsp/system/userEdit.jsp', // 书本编辑页面
btn : [ '保存', '关闭' ],
yes : function(index, layero) {
// 调用子页面中提供的getData方法，快速获取子页面的form表单数据 getData()子页面的方法
let data = $(layero).find("iframe")[0].contentWindow.getData();
console.log(data);
// 判断title标题
let methodName = "add";
if (title == "编辑")
methodName = "edit";
$.post('user.action?methodName=' + methodName,
data, function(rs) {
if (rs.success) {
// 关闭对话框
layer.closeAll();
// 调用查询方法刷新数据
query();
} else {
layer.msg(rs.msg, function() {
});
}
}, 'json');
},
btn2 : function(index, layero) {
layer.closeAll();
}
});
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@include file="/common/head.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="${pageContext.request.contextPath }/static/js/system/userEdit.js"></script>
<title>用户新增、修改共用界面</title>
</head>
<style>
.layui-form-select dl{
max-height:150px;
}
</style>
<body>
<div style="padding:10px;">
<form class="layui-form layui-form-pane" lay-filter="user">
<input type="hidden" name="id"/>
<div class="layui-form-item">
<label class="layui-form-label">用户名称</label>
<div class="layui-input-block">
<input type="text" id="name" name="name" autocomplete="off" placeholder="请输入用户名" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">用户角色</label>
<div class="layui-input-block">
<select name="rid">
<option value="">---请选择---</option>
<option value="1">管理员</option>
<option value="2">发起者</option>
<option value="3">审批者</option>
<option value="4">参与者</option>
<option value="5">会议管理员</option>
</select>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">登录账号</label>
<div class="layui-input-block">
<input type="text" name="loginName" lay-verify="required" placeholder="请输入账号" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">登录密码</label>
<div class="layui-input-block">
<input type="password" name="pwd" placeholder="请输入密码" autocomplete="off" class="layui-input">
</div>
</div>
</form>
</div>
</body>
</html>
let layer,form,$;
layui.use(['layer','form','jquery'],function(){
layer=layui.layer,form=layui.form,$=layui.jquery;
initData();
});
function initData(){
if(null!=parent.row){
//parent.row：表格行对象
form.val('user',$.extend({}, parent.row||{}));
$('#name').attr('readonly','readonly');
}
}
function getData(){
return form.val('user');
}
