easyui高级控件(三)
2019-07-31 15:10
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本文链接：https://blog.csdn.net/qiu_hyun/article/details/97901672
easyui高级控件
easyui的crud（dialog，datagrid、form讲解）
1、datagrid布局
2、dialog布局
3、form布局
4、通用的JsonBaseDao增删改方法
5、dao层
6、web层
7、功能完善
陈旧的开发模式
美工（ui工程师：出一个项目模型）
java工程师：将原有的html转成jsp，动态展示数据
缺点：
客户需要调节前端的展示效果
解决：由美工去重新排版，重新选色。
Vs
前后端分离
美工、java工程师都是独立工作的，彼此之间在开发过程中是没有任何交际。
在开发前约定数据交互的格式。
java工程师的工作：写方法返回数据如tree_data1.json
美工：只管展示tree_data1.json
基础讲解
1. datagrid
1.1 分页数据
easyui的页码page、页大小rows
1.2 datagrid组件
{total:10,rows:[{},{},{}]}
1.3 加载中文插件包
locale/easyui-lang-zh_CN.js
1.4 关键属性
后台数据
url
load/reload
列
columns
分页
pagination
pageList
pageSize
按钮
toolbar
其它
singleSelect
idField
代码演示：
前端：
userManage.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css"
href="${pageContext.request.contextPath }/static/easyui5/themes/black/easyui.css">
<link rel="stylesheet" type="text/css"
href="${pageContext.request.contextPath }/static/easyui5/themes/icon.css">
<script type="text/javascript"
src="${pageContext.request.contextPath }/static/easyui5/jquery.min.js"></script>
<script type="text/javascript"
src="${pageContext.request.contextPath }/static/easyui5/jquery.easyui.min.js"></script>
<script type="text/javascript"
src="${pageContext.request.contextPath }/static/js/userManage.js"></script>
<title>人员信息维护界面</title>
</head>
<body>
<div id="tb">
<input type="text" id="qq">
<button onclick="qq()">搜索</button>
</div>
<table id="dg"></table>
<!-- 新增修改对应的编辑窗体 closed:是否关闭 -->
<div id="dd" class="easyui-dialog" title="编辑窗体"
style="width: 400px; height: 200px;"
data-options="iconCls:'icon-save',resizable:true,modal:true,buttons:'#bb',closed:true">
<!--
自定义正则属性
$.extend({
})
-->
<form id="ff" method="post">
<input type="hidden" name="SerialNo" />
<div>
<label for="name">uid:</label> <input class="easyui-validatebox"
type="text" name="uid" data-options="required:true," />
</div>
<div>
<label for="uname">uname:</label> <input class="easyui-validatebox"
type="text" name="uname" data-options="required:true" />
</div>
<div>
<label for="upwd">upwd:</label> <input class="easyui-validatebox"
type="text" name="upwd" data-options="required:true" />
</div>
</form>
</div>
<div id="bb">
<a href="#" class="easyui-linkbutton" onclick="ok()">保存</a>
<a href="#" class="easyui-linkbutton" onclick="no()">关闭</a>
</div>
</body>
</html>
datagrid_data1.json:
{"total":28,"rows":[
{"uid":"FI-SW-01","uname":"Koi","upwd":10.00,"status":"P","listprice":36.50,"attr1":"Large","itemid":"EST-1"},
{"uid":"K9-DL-01","uname":"Dalmation","upwd":12.00,"status":"P","listprice":18.50,"attr1":"Spotted Adult Female","itemid":"EST-10"},
{"uid":"RP-SN-01","uname":"Rattlesnake","upwd":12.00,"status":"P","listprice":38.50,"attr1":"Venomless","itemid":"EST-11"},
{"uid":"RP-SN-01","uname":"Rattlesnake","upwd":12.00,"status":"P","listprice":26.50,"attr1":"Rattleless","itemid":"EST-12"},
{"uid":"RP-LI-02","uname":"Iguana","upwd":12.00,"status":"P","listprice":35.50,"attr1":"Green Adult","itemid":"EST-13"},
{"uid":"FL-DSH-01","uname":"Manx","upwd":12.00,"status":"P","listprice":158.50,"attr1":"Tailless","itemid":"EST-14"},
{"uid":"FL-DSH-01","uname":"Manx","upwd":12.00,"status":"P","listprice":83.50,"attr1":"With tail","itemid":"EST-15"},
{"uid":"FL-DLH-02","uname":"Persian","upwd":12.00,"status":"P","listprice":23.50,"attr1":"Adult Female","itemid":"EST-16"},
{"uid":"FL-DLH-02","uname":"Persian","upwd":12.00,"status":"P","listprice":89.50,"attr1":"Adult Male","itemid":"EST-17"},
{"uid":"AV-CB-01","uname":"Amazon Parrot","upwd":92.00,"status":"P","listprice":63.50,"attr1":"Adult Male","itemid":"EST-18"}
]}
userManage.js:
$(function() {
$('#dg').datagrid({
// 优先选择全路径名
url:'/easyui/userAction.action?methodName=list',
pagination:true, // 分页
fitColumns:true, // 填充多余的部分
// fit:true, //霸屏
columns:[[
{field:'uid',title:'代码',width:100},
{field:'uname',title:'名称',width:100},
{field:'upwd',title:'价格',width:100,align:'right'}
]],
// 通过数组定义工具栏：
toolbar: [{
iconCls: 'icon-add',
handler: function(){
$('#ff').form('clear'); // 清空数据
$('#dd').dialog('open'); // 打开窗口
}
},{
iconCls: 'icon-edit',
handler: function(){
// 通过easyui的form控件直接回填选中行的数据
var row = $('#dg').datagrid('getSelected');
// console.log(row);
if(row){
// 打开和关闭窗口
$('#dd').dialog('open');
$('#ff').form('load',row);
}else{
alert("请选择你要修改的数据！");
}
$('#ff').form('load','get_data.php'); // 读取表单的URL
}
},'-',{
iconCls : 'icon-remove',
handler : function() {
var row = $('#dg').datagrid('getSelected');
if (null == row) {
$.messager.alert('警告', '请选中行');
return false;
}
$.messager.confirm('确认', '您确认要删除记录吗', function(r) {
if(r){
$.ajax({
url:$("#myy").val()+'/userAction.action?methodName=del&SerialNo='+row.SerialNo,
success: function(param){
// 重新载入页面
$('#dg').datagrid('reload');
}
})
}
})
}
} ]
});
})
// 保存数据
function ok(){
var urls = '/easyui/userAction.action?methodName=edit';
var SerialNo = $('#SerialNo').val();
if(SerialNo == null || SerialNo == ""){
urls = '/easyui/userAction.action?methodName=add';
}
// 提交操作
$('#ff').form('submit', {
url: urls,
success:function(data){
console.log(data);
// 将json串转成json对象
var res = eval('('+ data +')');
// 比如说如果返回1代表成功，0代表失败，还有业务逻辑要处理的话，由前端完成
if(res.code == 1){
$('#dd').dialog('close'); // 关闭窗口
$('#dg').datagrid('reload'); // 重新载入当前页面数据
}else{
alert("失败！");
}
}
});
}
// 关闭窗口
function no() {
$('#dd').dialog('close');
}
// 查询
function qq() {
var query = $("#qq").val();
$("#dg").datagrid(
{
url : $("#myy").val() + '/userAction.action?methodName=query&uname=' + query
});
}
后台：
dao包：
UserDao.java:
package com.qiuwenfan.dao;
import java.util.List;
import java.util.Map;
import com.qiuwenfan.util.JsonBaseDao;
import com.qiuwenfan.util.JsonUtils;
import com.qiuwenfan.util.PageBean;
import com.qiuwenfan.util.StringUtils;
public class UserDao extends JsonBaseDao {
/**
* 用于查询用户分页列表所用
* 用于用户登录所用
* @param map
* @param pageBean
* @return
* @throws Exception
*/
public List<Map<String, Object>> list(Map<String, String[]> map,PageBean pageBean) throws Exception{
String sql = "select * from t_easyui_user_version2 where true ";
String uid = JsonUtils.getParamVal(map, "uid");
String upwd = JsonUtils.getParamVal(map, "upwd");
if(StringUtils.isNotBlank(uid)) {
sql += " and uid =" +uid;
}
if(StringUtils.isNotBlank(upwd)) {
sql += " and upwd =" + upwd;
}
return super.executeQuery(sql, pageBean);
}
/**
* 通过用户登录的唯一账号，在用户父权限中间表中获取菜单ID的集合
*
* @param map
* @param pageBean
* @return
* @throws Exception
*/
public List<Map<String, Object>> getMenusByUser(Map<String, String[]> map,PageBean pageBean) throws Exception{
String sql = "select * from t_easyui_usermenu where true ";
String uid = JsonUtils.getParamVal(map, "uid");
String upwd = JsonUtils.getParamVal(map, "upwd");
if(StringUtils.isNotBlank(uid)) {
sql += " and uid =" +uid;
}
return super.executeQuery(sql, pageBean);
}
/**
* 修改
* @param map
* @return
* @throws Exception
*/
public int edit(Map<String, String[]> map) throws Exception{
String sql = "update t_easyui_user_version2 set uid=?,uname=?,upwd=? where serialno=?";
return super.executeUpdate(sql, new String[] {"uid","uname","upwd","SerialNo"}, map);
}
/**
* 查询SerialNoMax的最大值
* @param map
* @return
* @throws Exception
*/
public List<Map<String, Object>> SerialNoMax(Map<String, String[]> map) throws Exception{
String sql = "select max(SerialNoMax) from t_easyui_user_version2";
return super.executeQuery(sql, null);
}
/**
* 新增信息
* @param map
* @return
* @throws Exception
*/
public int add(Map<String, String[]> map) throws Exception{
List<Map<String, Object>> SerialNo = this.SerialNoMax(map);//获取最大唯一标识符
int serialno = Integer.valueOf(SerialNo.toString().substring(16,17))+1;
String sql = "insert into t_easyui_user_version2 values('"+serialno+"',?,?,?)";
return super.executeUpdate(sql, new String [] {"uid","uname","upwd"},map);
}
/**
* 删除信息
* @param map
* @return
* @throws Exception
*/
public int del(Map<String, String[]> map) throws Exception{
String sql="delete from t_easyui_user_version2 where serialno = ? ";
return super.executeUpdate(sql, new String[] {"SerialNo"},map);
}
/**
* 按uname模糊查询信息
* @param paMap
* @param pageBean
* @return
* @throws Exception
*/
public List<Map<String, Object>> query(Map<String, String[]> paMap,PageBean pageBean) throws Exception{
String sql="select * from t_easyui_user_version2 where true";
String uname = JsonUtils.getParamVal(paMap, "uname");
if (StringUtils.isNotBlank(uname)) {
sql = sql + " and uname like '%" + uname + "%'";
}
return super.executeQuery(sql, pageBean);
}
}
web包:
UserAction.java:
package com.qiuwenfan.web;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.qiuwenfan.dao.UserDao;
import com.qiuwenfan.util.PageBean;
import com.qiuwenfan.util.ResponseUtil;
import com.zking.framework.ActionSupport;
public class UserAction extends ActionSupport {
private UserDao userDao = new UserDao();
public String login(HttpServletRequest req, HttpServletResponse resp) {
String code = "index";
// 登录
try {
List<Map<String, Object>> list = this.userDao.list(req.getParameterMap(), null);
if (list.size() == 1 && list != null) {
// 用户存在
List<Map<String, Object>> menusList = this.userDao.getMenusByUser(req.getParameterMap(), null);
StringBuilder sb = new StringBuilder();
for (Map<String, Object> map : menusList) {
sb.append("," + map.get("menuId"));
System.out.println(sb.toString());
}
// ,001,002
req.setAttribute("menuIds", sb.substring(1));
} else {
// 用户不存在
req.setAttribute("msg", "用户不存在");
code = "login";
}
} catch (Exception e) {
e.printStackTrace();
code = "login";
}
return code;
}
/**
* easyui的datagrid的数据来源
* @param req
* @param resp
* @return
*/
public String list(HttpServletRequest req, HttpServletResponse resp) {
Map<String, Object> map = new HashMap<String, Object>();
PageBean pageBean = new PageBean();
pageBean.setRequest(req);
try {
List<Map<String, Object>> list = this.userDao.list(req.getParameterMap(), pageBean);
map.put("total", pageBean.getTotal());
map.put("rows", list);
ObjectMapper om = new ObjectMapper();
ResponseUtil.write(resp, om.writeValueAsString(map));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 修改
* @param req
* @param resp
* @return
*/
public String edit(HttpServletRequest req, HttpServletResponse resp) {
try {
this.userDao.edit(req.getParameterMap());
ObjectMapper om = new ObjectMapper();
Map<String, Object> map = new HashMap<String, Object>();
map.put("code", 1);
map.put("msg", "成功");
ResponseUtil.write(resp, om.writeValueAsString(map));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 新增
*
* @param req
* @param resp
* @return
*/
public String add(HttpServletRequest req, HttpServletResponse resp) {
try {
this.userDao.add(req.getParameterMap());
ObjectMapper om = new ObjectMapper();
Map<String, Object> map = new HashMap<String, Object>();
map.put("code", 1);
map.put("msg", "成功");
ResponseUtil.write(resp, om.writeValueAsString(map));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 删除
*
* @param req
* @param resp
* @return
*/
public String del(HttpServletRequest req, HttpServletResponse resp) {
try {
int del = this.userDao.del(req.getParameterMap());
ObjectMapper om = new ObjectMapper();
Map<String, Object> map = new HashMap<String, Object>();
map.put("code", 1);
map.put("msg", "成功");
ResponseUtil.write(resp, om.writeValueAsString(map));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 查询
*
* @param req
* @param resp
* @return
*/
public String query(HttpServletRequest req, HttpServletResponse resp) {
try {
PageBean pageBean = new PageBean();
pageBean.setRequest(req);
List<Map<String, Object>> list = this.userDao.query(req.getParameterMap(), pageBean);
ObjectMapper om = new ObjectMapper();
Map<String, Object> map = new HashMap<>();
map.put("total", pageBean.getTotal());
map.put("rows", list);
ResponseUtil.write(resp, om.writeValueAsString(map));
} catch (Exception e) {
e.printStackTrace();
}
return "index";
}
}
图片结果（增删改查）：
界面显示：
修改（马六）：
增加信息：
删除信息:
查询信息：
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