springboot+layui实现增删查改
本文描述springboot和layui的结合，采用了springboot内置的jdbc，根据不同需要可以进行修改；分页采用了layui中自带分页格式！
-------------------------------------------------数据管理dao层
package main.springboot.dao;
import main.springboot.bean.PageBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import java.util.List;
import java.util.Map;
/**
* 教师DAO
* @author 周帅
*/
@Repository
public class TeaDao extends PageDao{
@Autowired
private JdbcTemplate jdbcTemplate;
/**
* 查询所有学生
* @return
*/
public List queryTea(String newname){
String sql = "select * from t_tea where flag=1";
System.out.println(newname+" aaaaa");
if(newname!=null){
sql +=" and name like '%"+newname+"%'";
}
System.out.println(sql);
return jdbcTemplate.queryForList(sql);
}
/**
* 获取用户信息
* @param id
* @return
*/
public Map getTea(int id){
String sql = "select * from t_tea where id="+id;
return jdbcTemplate.queryForMap(sql);
}
/**
* 更新教师信息
* @param TeaMap
*/
public void updateTea(Map TeaMap){
String name = TeaMap.get("name").toString();
String sex = (String) TeaMap.get("sex");
String age = (String) TeaMap.get("age");
System.out.println(sex);
System.out.println(age);
String updatesql = "";
if(name!=null){
updatesql +="name='"+name+"',";
}
if(sex!=null){
updatesql +="sex="+sex+",";
}
if(age!=null){
updatesql +="age="+age;
}
System.out.println(TeaMap.get("id")+"aaaaaaawww");
if(updatesql.length()>2){
String sql = "update t_tea set "+updatesql+" where id="+TeaMap.get("id");
jdbcTemplate.execute(sql);
}
}
/**
* 添加教师
* @param TeaMap
*/
public void addTea(Map TeaMap){
String sql="insert into t_tea(name,sex,age,flag) values('"+TeaMap.get("name")+"',"+TeaMap.get("sex")+","+TeaMap.get("age")+",'1')";
jdbcTemplate.execute(sql);
}
/**
* 删除教师
* @param id
*/
public void deleteTea(String id){
String sql="update t_tea set flag='0' where id in("+id+")";
jdbcTemplate.execute(sql);
}
/**
* 模糊查询
* @param pageBean
* @param where
* @param orderby
* @return
*/
public PageBean mohuquery(PageBean pageBean, String where, String orderby){
String sql="select * from t_tea where flag=1 " ;
return this.queryPageByMysql(pageBean, sql, where, orderby);
}
}
-----------------------------------------------------------pageDao分页查询
package main.springboot.dao;
import java.util.List;
import java.util.Map;
import main.springboot.bean.PageBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
@Repository
public class PageDao {
@Autowired
private JdbcTemplate jdbcTemplate;
/**
* 分页查询
* @param sql
* @param where
* @param orderby
* @return
*/
public PageBean queryPageByMysql(PageBean pageBean,String sql,String where,String orderby){
int page = pageBean.getPage();
int rows = pageBean.getRows();
int startIndex = (page-1) * rows;
String pageSql = sql+where+orderby+" limit "+startIndex+","+rows;
System.out.println(pageSql);
System.out.println("PageBean Sql语句："+pageSql);
List list = jdbcTemplate.queryForList(pageSql);
System.out.println("PageBean 查询数据："+list);
pageBean.setPageData(list);
int total = this.queryTotal(sql, where);
pageBean.setTotal(total);
return pageBean;
}
/**
* 分页查询
* @param sql
* @param where
* @param orderby
* @return
*/
public PageBean queryPageByOracle(PageBean pageBean,String sql,String where,String orderby){
int page = pageBean.getPage();
int rows = pageBean.getRows();
int startIndex = (page-1) * rows;
int endIndex = page * rows;
String pageSql = "SELECT * FROM (SELECT A.*, ROWNUM RN FROM ("+sql+where+orderby+") A WHERE ROWNUM <= "+endIndex+" ) WHERE RN > "+startIndex;
List list = jdbcTemplate.queryForList(pageSql);
pageBean.setPageData(list);
int total = this.queryTotal(sql, where);
pageBean.setTotal(total);
return pageBean;
}
/**
* 查询总数量
* @param sql
* @param where
* @return
*/
public int queryTotal(String sql,String where){
String totalSql = " select count(1) as total from ("+sql+where+") a ";
List list = jdbcTemplate.queryForList(totalSql);
Map map = (Map)list.get(0);
return Integer.parseInt(map.get("total").toString());
}
}
-----------------------------------------------------------业务service层
package main.springboot.action;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import main.springboot.bean.PageBean;
import main.springboot.service.TeaService;
import main.springboot.service.UserService;
import main.springboot.utils.RedisUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 教师控制层
* @author 周帅
*/
@Controller
public class TeaAction {
@Autowired
private RedisUtils redisUtils;
@Autowired
private TeaService teaService;
@Autowired
private UserService userService;
private String newname ="";
/**
* 查询所有教师
* @param request
* @return
*/
@RequestMapping("/view/system/queryTeaList")
@ResponseBody
public String queryRoleList(HttpServletRequest request){
try {
List list = teaService.queryTea(newname);
JSONObject josn = new JSONObject();
josn.put("code",0);
josn.put("msg","");
josn.put("data",JSONArray.toJSON(list));
return josn.toJSONString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 根据ID查询教师信息
* @param request
* @param id
* @return
*/
@RequestMapping("/view/system/queryById")
@ResponseBody
public Map queryById(HttpServletRequest request,@RequestParam int id){
Map map = null;
try {
map = teaService.getTea(id);
}catch (Exception e){
e.printStackTrace();
}
return map;
}
/**
* 添加教师
* @param request
* @param teaMap
* @return
*/
@RequestMapping("/view/system/addTea")
@ResponseBody
public int addTea(HttpServletRequest request,@RequestParam Map teaMap){
try {
teaService.addTea(teaMap);
return 0;
}catch (Exception e){
e.printStackTrace();
}
return -1;
}
/**
* 修改教师
* @param request
* @param teaMap
* @return
*/
@RequestMapping("/view/system/updateTea")
@ResponseBody
public int updateTea(HttpServletRequest request,@RequestParam Map teaMap){
try {
teaService.updateTea(teaMap);
return 0;
}catch (Exception e){
e.printStackTrace();
}
return -1;
}
/**
* 删除教师
* @param request
* @param id
* @return
*/
@RequestMapping("/view/system/deleteTea")
@ResponseBody
public int deleteTea(HttpServletRequest request,@RequestParam String id){
try {
teaService.deleteTea(id);
return 0;
}catch (Exception e){
e.printStackTrace();
}
return -1;
}
/**
* 图表数据查询
* @return
*/
@RequestMapping("/view/system/queryTea2")
@ResponseBody
public ResponseEntity queryTea2(){
System.out.println(newname);
List list = teaService.queryTea(newname);
return new ResponseEntity(list, HttpStatus.OK);
}
/**
* 分页查询
* @param request
* @param queryParams
* @return
*/
@RequestMapping("/view/system/queryTea")
@ResponseBody
public Map queryTea(HttpServletRequest request,@RequestParam Map queryParams){
Map result = new HashMap();
try {
PageBean pageBean = new PageBean();
pageBean.setPage(Integer.parseInt(queryParams.get("page").toString()));
pageBean.setRows(Integer.parseInt(queryParams.get("limit").toString()));
newname = (String) queryParams.get("keyword");
pageBean.setQueryParams(queryParams);
pageBean = teaService.mohuquery(pageBean);
result.put("count", pageBean.getTotal());
result.put("data", pageBean.getPageData());
result.put("msg", "");
result.put("code", 0);
} catch (Exception e) {
e.printStackTrace();
result.put("count", 0);
result.put("data", new ArrayList());
result.put("msg", "");
result.put("code", 500);
}
return result;
}
}
----------------------------------------------------------------------控制action层
package main.springboot.action;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import main.springboot.bean.PageBean;
import main.springboot.service.TeaService;
import main.springboot.service.UserService;
import main.springboot.utils.RedisUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 教师控制层
* @author 周帅
*/
@Controller
public class TeaAction {
@Autowired
private RedisUtils redisUtils;
@Autowired
private TeaService teaService;
@Autowired
private UserService userService;
private String newname ="";
/**
* 查询所有教师
* @param request
* @return
*/
@RequestMapping("/view/system/queryTeaList")
@ResponseBody
public String queryRoleList(HttpServletRequest request){
try {
List list = teaService.queryTea(newname);
JSONObject josn = new JSONObject();
josn.put("code",0);
josn.put("msg","");
josn.put("data",JSONArray.toJSON(list));
return josn.toJSONString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 根据ID查询教师信息
* @param request
* @param id
* @return
*/
@RequestMapping("/view/system/queryById")
@ResponseBody
public Map queryById(HttpServletRequest request,@RequestParam int id){
Map map = null;
try {
map = teaService.getTea(id);
}catch (Exception e){
e.printStackTrace();
}
return map;
}
/**
* 添加教师
* @param request
* @param teaMap
* @return
*/
@RequestMapping("/view/system/addTea")
@ResponseBody
public int addTea(HttpServletRequest request,@RequestParam Map teaMap){
try {
teaService.addTea(teaMap);
return 0;
}catch (Exception e){
e.printStackTrace();
}
return -1;
}
/**
* 修改教师
* @param request
* @param teaMap
* @return
*/
@RequestMapping("/view/system/updateTea")
@ResponseBody
public int updateTea(HttpServletRequest request,@RequestParam Map teaMap){
try {
teaService.updateTea(teaMap);
return 0;
}catch (Exception e){
e.printStackTrace();
}
return -1;
}
/**
* 删除教师
* @param request
* @param id
* @return
*/
@RequestMapping("/view/system/deleteTea")
@ResponseBody
public int deleteTea(HttpServletRequest request,@RequestParam String id){
try {
teaService.deleteTea(id);
return 0;
}catch (Exception e){
e.printStackTrace();
}
return -1;
}
/**
* 图表数据查询
* @return
*/
@RequestMapping("/view/system/queryTea2")
@ResponseBody
public ResponseEntity queryTea2(){
System.out.println(newname);
List list = teaService.queryTea(newname);
return new ResponseEntity(list, HttpStatus.OK);
}
/**
* 分页查询
* @param request
* @param queryParams
* @return
*/
@RequestMapping("/view/system/queryTea")
@ResponseBody
public Map queryTea(HttpServletRequest request,@RequestParam Map queryParams){
Map result = new HashMap();
try {
PageBean pageBean = new PageBean();
pageBean.setPage(Integer.parseInt(queryParams.get("page").toString()));
pageBean.setRows(Integer.parseInt(queryParams.get("limit").toString()));
newname = (String) queryParams.get("keyword");
pageBean.setQueryParams(queryParams);
pageBean = teaService.mohuquery(pageBean);
result.put("count", pageBean.getTotal());
result.put("data", pageBean.getPageData());
result.put("msg", "");
result.put("code", 0);
} catch (Exception e) {
e.printStackTrace();
result.put("count", 0);
result.put("data", new ArrayList());
result.put("msg", "");
result.put("code", 500);
}
return result;
}
}
------------------------------------------------------------数据页面
--------------------------------------------------------主要的tea.js
var table;
var layer;
layui.use([ 'layer', 'table', 'element' ], function() {
table = layui.table;
layer = layui.layer;
// 执行一个 table 实例
table.render({
elem : '#user',
height:472,
url : '/view/system/queryTea',
page :true, // 开启分页
cols : [ [ // 表头
{
fixed : 'left',
type : 'checkbox'
}, {
field : 'id',
title : 'ID',
width : 80,
fixed : 'left'
}, {
field : 'name',
title : '教师名称',
width : 160
}, {
field : 'sex',
title : '性别',
width : 80,
templet : function(d) {
if (d.sex == 1) {
return '男';
} else if (d.sex == 0) {
return '女';
}
}
}, {
field : 'age',
title : '年龄',
width : 220,
},{
title : '操作',
width : 300,
align : 'center',
toolbar : '#tools'
} ] ]
});
// 监听工具条
table.on('tool(tools)', function(obj) { // 注：tool是工具条事件名，test是table原始容器的属性
var data = obj.data // 获得当前行数据
, layEvent = obj.event; // 获得 lay-event 对应的值
if ('edit' == layEvent) {
addTea(data.id)
} else if ('del' == layEvent) {
del(data.id);
}
});
showBar();
});
function showBar() {
//生成图表
// 基于准备好的dom，初始化echarts实例
var myChart = echarts.init(document.getElementById('main'));
var m=0;
var n=0;
$.ajax({
url:"/view/system/queryTea2",
success:function(data){
$.each(data,function (i,obj) {
if(obj.sex==1){
m+=1;
}else{
n+=1;
}
});
// 指定图表的配置项和数据
var option = {
title: {
text: '男女比例'
},
tooltip: {},
legend: {
data:['数量']
},
xAxis: {
data: ["男","女"]
},
yAxis: {},
series: [{
name: '数量',
type: 'bar',
data: [m,n]
}]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
}
});
}
function queryTea(){
var keyword = $("#keyword").val();
table.reload('user', {
where : {
keyword : keyword
},
page : {
curr : 1
}
});
showBar()
}
var index;
function addTea(id) {
index = layer.open({
type : 2,
title : "角色信息",
content : '/view/system/editTea?id=' + id
});
layer.full(index);
queryTea();
}
function close() {
layer.close(index);
}
function del(id) {
layer.open({
type : 1,
content : '确定删除记录?',
btn : [ '确定', '取消' ],
yes : function(index, layero) {
$.ajax({
url : "/view/system/deleteTea",
data : {
"id" : id
},
dataType : "text",
success : function(data) {
if(data==0){
layer.msg("删除成功！");
layer.close(index);
queryTea();
}else{
layer.msg("删除失败！");
}
},
error : function() {
}
});
}
});
}
/**
* 获取选中数据
*/
function getDatas(){
var checkStatus = table.checkStatus('user');
var data = checkStatus.data;
var id = "";
for(var i=0;i
-----------------------------------------------------------------添加、修改页面