Java使用Spring MVC以及Mybatis实现 DataGrid的增删改查/分页，以Mysql数据库为例，效果：
具体代码如下：
0、数据库脚本：
CREATE TABLE `compy` (
`id` bigint(11) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`compy_id` varchar(64) NOT NULL COMMENT '供应商ID',
`compy_name` varchar(512) NOT NULL COMMENT '供应商名称[如:泰康]',
`remark` varchar(1024) DEFAULT NULL COMMENT '备注',
`update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '数据更新时间',
`create_time` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT '数据创建时间',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=utf8 COMMENT='供应商配置表';
1、前端页面：
<div class="easyui-layout" data-options="fit:true,border:false">
<div id="searchCompanyUrl" style="padding:3px">
<div class="comp-search-box">
<div class="screen-top">
<div class="colRow">
<input id="s_compyName" type="text" class="easyui-textbox" name="compyName" data-options="label:'供应商名称：'" />
</div>
<div class="colRow">
<button class="easyui-linkbutton btnDefault" onclick="dosearchCompanyUrl();">
<i class="fa fa-search"></i>查询
</button>
</div>
</div>
</div>
<div class="btnbar-tools">
<a href="javascript:;" class="add" id="newCompy"><i class="fa fa-plus-square success"></i>添加</a>
<a href="javascript:;" class="del" id="delCompy"><i class="fa fa-times-rectangle danger"></i>删除</a>
</div>
</div>
<div data-options="region:'center',border:false" style="overflow: hidden;">
<table id="companyGrid"></table>
</div>
</div>
2、JS相关：
<script type="text/javascript">
$(document).ready(function(){
//删除确认
$('#delCompy').click(function(){
var selRow = $('#companyGrid').datagrid('getSelections');
if(selRow.length<=0){
layer.msg('请选择要删除的数据!')
}else{
layer.confirm('<div class="delMsgTip"><div class="delTip"><i class="icon"></i>你确定要删除当前数据！<br>是“确认”，否“取消”</div></div>', {type:0, title:false, shade:0}, function(index){
var ids=[];
for (var i = 0; i < selRow.length; i++) {
var id=selRow[i].id;
ids.push(id);
}
var paramIds = ids.join(',');
var basePath = $("#basePath").val();
$.ajax({
cache : true,
type : "POST",
url : basePath+"/compy/delCompy",
data : { ids: paramIds },
async : false,
error : function(request) {
layer.msg('网络错误，请稍后再试!')
},
success : function(data) {
if(data=='success'){
dosearchCompanyUrl();
layer.msg('删除成功!')
$("#companyGrid").datagrid("clearChecked");
$("#companyGrid").datagrid("clearSelections");
}else{
layer.msg('删除失败!');
}
}
});
});
}
});
//加载列表
var companyGrid = $('#companyGrid').datagrid({
url : basePath+'/compy/getCompyList',
idField : 'id',
fit : true,
fitColumns : true, //列宽自适应false
border : true, //边框
nowrap:true,
rownumbers : true,
pageSize:20,//初始化显示条数
pageList: [20,50,100],
pagination : true,
singleSelect:false,
toolbar:"#searchCompanyUrl",
frozenColumns : [ [ {
title : 'id',
field : 'id',
width : 40,
hidden : true
} ] ],
columns : [ [ {
field:'id',checkbox:true
},{
field : 'compyId',
title : '供应商编号',
width : 150
},{
field : 'compyName',
title : '供应商名称',
width : 150
},{
field : 'remark',
title : '备注',
width : 150
},{
field : 'createTime',
title : '数据创建时间',
width : 150
} ] ]
});
});
//搜索
function dosearchCompanyUrl(){
$('#companyGrid').datagrid('load',{
companyName: $('#s_compyName').val()
});
}
//新增保存提交
function add(){
basePath = $("#basePath").val();
var validate = $("#formAddCompany").form('validate');
if(validate){
$.ajax({
cache : true,
type : "POST",
url : basePath+"/compy/addCompy",
data : $('#formAddCompany').serialize(),
async : false,
error : function(request) {
layer.msg('网络错误，请稍后再试!')
},
success : function(data) {
if(data=='success'){
layer.closeAll();
dosearchCompanyUrl();
layer.msg('添加成功!')
}else{
layer.msg('添加失败!')
}
}
});
}
}
function clearCompanyForm(){//重置表单
$('#formAddCompany').form('clear');
}
</script>
3、Controller实现
/**
* @ClassName: CompyController
* @Description: Controller配置
* @author sam
* @date 2018年9月25日 下午4:03:23
*/
@Controller
@RequestMapping("/compy")
public class CompyController {
@Autowired
private compyService compyService;
// 查询列表
@PostMapping("/getCompyList")
@ResponseBody
public DataGrid getCompyList(PageUtils page, String companyName) {
List<HeiniuCompy> dataList = compyService.getCompyList(page, companyName);
int total = compyService.getCompyCount(companyName);
DataGrid result = new DataGrid(total, dataList);
return result;
}
// 添加
@PostMapping("/addCompy")
@ResponseBody
public String addCompy(CompyDto compyDto) {
// 保存
int result = compyService.addCompy(compyDto);
if (result > 0) {
return "success";
} else {
return "fail";
}
}
// 删除
@PostMapping("/delCompy")
@ResponseBody
public String delCompy(String ids) {
if (StringUtils.isEmpty(ids)) {
throw new RuntimeException("参数为空");
}
int result = compyService.delCompy(ids);
if (result > 0) {
return "success";
} else {
return "fail";
}
}
}
4、DataGrid工具类
/**
* @ClassName: DataGrid
* @Description: DataGrid工具类
* @author sam
* @date 2018年9月22日 下午5:11:05
*/
public class DataGrid {
private int total;
private List<?> rows;
// 页脚
private List<?> footer;
public DataGrid(int total, List<?> rows, List<?> footer) {
super();
this.total = total;
this.rows = rows;
this.footer = footer;
}
public DataGrid(int total, List<?> rows) {
super();
this.total = total;
this.rows = rows;
}
public DataGrid() {
super();
// TODO Auto-generated constructor stub
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public List<?> getRows() {
return rows;
}
public void setRows(List<?> rows) {
this.rows = rows;
}
public List<?> getFooter() {
return footer;
}
public void setFooter(List<?> footer) {
this.footer = footer;
}
}
5、PageUtils分页工具类
/**
* @ClassName: PageUtils
* @Description: 分页对象
* @author sam
* @date 2018年9月20日 下午5:48:24
*/
public class PageUtils {
private int page; // 当前页数
private int rows; // 每行显示条数
public PageUtils(int page, int rows) {
super();
this.page = page;
this.rows = rows;
}
public PageUtils() {
super();
// TODO Auto-generated constructor stub
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public int getRows() {
return rows;
}
public void setRows(int rows) {
this.rows = rows;
}
}
6、Service层业务实现
@Autowired
private CompyDao compyDao;
@Override
public List<Compy> getCompyList(PageUtils page, String companyName) {
List<Compy> list = new ArrayList<Compy>();
try {
list = compyDao.selectCompyByPage((page.getPage() - 1) * page.getRows(), page.getRows(), companyName);
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
@Override
public int getCompyCount(String companyName) {
int total = 0;
try {
total = compyDao.selectCompyCount(companyName);
} catch (Exception e) {
e.printStackTrace();
}
return total;
}
@Override
public int addCompy(CompyDto compyDto) {
int result = 0;
try {
Compy compy = new Compy();
BeanUtil.copyProperties(compyDto, compy);
compy.setCompyId(UUID.randomUUID().toString());
compy.setCreateTime(new Date());
compy.setUpdateTime(new Date());
result = compyDao.insert(compy);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
@Override
public int delCompy(String ids) {
int result = 0;
try {
String[] array = ids.split(",");
result = compyDao.delCompy(array);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
7、Mybatis CompyDao实现：
/**
* @ClassName: CompyDao
* @Description:Dao实现
* @author sam
* @date 2018年9月25日 下午3:28:23
*/
public interface CompyDao extends CompyMapper {
// 删除记录
int delCompy(@Param("array") String[] ids);
// 查询列表(分页)
List<Compy> selectCompyByPage(@Param("index") int index, @Param("rows") int rows,
@Param("compy_name") String compyName);
// 查询总数(分页)
int selectCompyCount(@Param("compy_name") String compyName);
// 查询名称下拉列表
List<Compy> selectCompanyNameList();
}
8、Mybatis CompyDAO.xml实现
<select id="selectCompyByPage" resultMap="com.sam.generator.mapper.CompyMapper.BaseResultMap">
select *
from compy
<where>
<if test="compy_name!=null and compy_name!=''">
and compy_name like #{compy_name}
</if>
</where>
order by create_time desc
limit #{index},#{rows};
</select>
<select id="selectCompyCount" resultType="Integer">
select count(*)
from compy
<where>
<if test="compy_name!=null and compy_name!=''">
and compy_name like #{compy_name}
</if>
</where>
</select>
<delete id="delCompy">
delete from compy where id in
<foreach item="idItem" collection="array" open="(" separator="," close=")">
#{idItem}
</foreach>
</delete>
以上为主要配置完成！spring相关配置这里就不记录了，启动，运行。