.Net Core使用ADO.NET实现增删改查
.net core 简单介绍:
.net core 是微软公司推出的一个跨平台 框架 他重写了Clr底层 屏蔽window 的依赖，可以运行window ,linux ，max等系统 效率比.net framework 要高出很多。
简单说明下.net core 的目录
下面是我学习的时候 写的增删改查
先预览 下界面
1.控制器
using HomeMediaFileManageSystemUtilts.Sql;
using Microsoft.AspNetCore.Mvc;
using System.Data.SqlClient;
namespace NetCore.Controllers
{
public class HomeController : Controller
{
public IActionResult Index()
{
return View();
}
/// 2.视图
@{
ViewData["Title"] = "Index";
}
<script src="~/lib/jquery/dist/jquery.js"></script>
<script src="~/js/Home.js"></script>
<style>
#table {
display: none;
}
td {
height: 40px;
text-align: center;
}
tr:hover {
background-color: lightseagreen;
}
#mask-kk {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 999;
background: #666;
opacity: 0.5;
filter: alpha(opacity=50)-moz-opacity: 0.5;
display: none;
}
.popup-kk {
position: absolute;
left: 50%;
width: 400px;
height: 300px;
background: #fff;
z-index: 1000;
display: none;
border-radius: 5px;
}
.layoutDiv {
margin-top:20px;
}
.close {
position: absolute;
top: 21px;
right: 20px;
cursor: pointer;
}
</style>
<center>
<h2>.NET Core 增删改查</h2>
<table border="1" cellpadding="0" cellspacing="0" style="width:1200px" id="table">
<tr>
<th>用户编号</th>
<th>用户名</th>
<th>年龄</th>
<th>性别</th>
<th>爱好</th>
<th>学校</th>
<th>身高</th>
<th>创建时间</th>
<th>状态</th>
<th>操作</th>
</tr>
<tbody id="tbody"></tbody>
</table>
</center>
<div id="mask-kk">
</div>
<div class="popup-kk">
@* 弹出层内容 *@
<center>
<input type="hidden" style="width:300px;" id="Id" autocomplete="off" />
<div class="layoutDiv">
<span>用户名</span>
<input type="text" style="width:300px;" id="Name" autocomplete="off" />
</div>
<div class="layoutDiv">
<span>年 龄</span>
<input type="text" style="width:300px;" id="Age" autocomplete="off" />
</div>
<div class="layoutDiv">
<span>学 校</span>
<input type="text" style="width:300px;" id="School" />
</div>
<div class="layoutDiv">
</div>
<button style="width:80px; margin-left:10px;" onclick="UserOptions.Update()">确认</button>
<button style="width:80px; margin-left:10px;" onclick="UserOptions.Reset()">重置</button>
<button style="width:80px; margin-left:10px;" onclick="closeWindow()">关闭</button>
</center>
</div>
3.JS代码
$(function () {
UserOptions.GetUsers();
})
var UserOptions = {
//加载数据源
GetUsers:function(){
$.ajax({
url: '/Home/GetUser',
success: function (data) {
$("#table").show();
var html = "";
for (var i = 0; i < data["table"].length; i++) {
html += "" + data["table"][i]["id"] + " " + data["table"][i]["name"] + " " + data["table"][i]["age"] + " " + data["table"][i]["sex"] + " " + data["table"][i]["hobby"] + " " + data["table"][i]["school"] + " " + data["table"][i]["height"] + " " + data["table"][i]["createTime"] + " " + data["table"][i]["status"] + " | 4.我自定义的文件
{
//自定义配置文件
"ConnectionString": {
"ConStr": "Data Source=.;Initial Catalog=TestDb;Integrated Security=True"
}
}
5.我的配置类
using Microsoft.Extensions.Configuration;
using System.IO;
namespace NetCore.ConfigurationFile
{
/// 6.贴出我的SQLHelper帮助类
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using System.Data.SqlTypes;
using System.IO;
using NetCore.ConfigurationFile;
namespace HomeMediaFileManageSystemUtilts.Sql
{
/// 返回一个数值表示此SqlCommand命令执行后影响的行数
public static int ExecteNonQuery(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
using (SqlConnection conn = new SqlConnection(connectionString))
{
//通过PrePareCommand方法将参数逐个加入到SqlCommand的参数集合中
PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
int val = cmd.ExecuteNonQuery();
//清空SqlCommand中的参数列表
cmd.Parameters.Clear();
return val;
}
}
/// 返回一个数值表示此SqlCommand命令执行后影响的行数
public static int ExecteNonQuery(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
return ExecteNonQuery(connectionString, cmdType, cmdText, commandParameters);
}
/// 返回一个数值表示此SqlCommand命令执行后影响的行数
public static int ExecteNonQueryProducts(string cmdText, params SqlParameter[] commandParameters)
{
return ExecteNonQuery(CommandType.StoredProcedure, cmdText, commandParameters);
}
/// 返回一个数值表示此SqlCommand命令执行后影响的行数
public static int ExecteNonQueryText(string cmdText, params SqlParameter[] commandParameters)
{
return ExecteNonQuery(CommandType.Text, cmdText, commandParameters);
}
#endregion
#region//GetTable方法
/// 返回一个表集合(DataTableCollection)表示查询得到的数据集
public static DataTableCollection GetTable(string connecttionString, CommandType cmdTye, string cmdText, SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
DataSet ds = new DataSet();
using (SqlConnection conn = new SqlConnection(connecttionString))
{
PrepareCommand(cmd, conn, null, cmdTye, cmdText, commandParameters);
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = cmd;
adapter.Fill(ds);
}
DataTableCollection table = ds.Tables;
return table;
}
/// 返回一个表集合(DataTableCollection)表示查询得到的数据集
public static DataTableCollection GetTable(CommandType cmdTye, string cmdText, SqlParameter[] commandParameters)
{
return GetTable(SqlHelper.connectionString, cmdTye, cmdText, commandParameters);
}
/// 返回一个表集合(DataTableCollection)表示查询得到的数据集
public static DataTableCollection GetTableProducts(string cmdText, SqlParameter[] commandParameters)
{
return GetTable(CommandType.StoredProcedure, cmdText, commandParameters);
}
/// 返回一个表集合(DataTableCollection)表示查询得到的数据集
public static DataTableCollection GetTableText(string cmdText, SqlParameter[] commandParameters)
{
return GetTable(CommandType.Text, cmdText, commandParameters);
}
#endregion
/// A SqlDataReader containing the results
public static SqlDataReader ExecuteReader(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
// we use a try/catch here because if the method throws an exception we want to
// close the connection throw code, because no datareader will exist, hence the
// commandBehaviour.CloseConnection will not work
try
{
SqlConnection conn = new SqlConnection(connectionString);
PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
cmd.Parameters.Clear();
return rdr;
}
catch
{
throw;
}
}
#region//ExecuteDataSet方法
/// return a dataset
public static DataSet ExecuteDataSet(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
try
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
SqlDataAdapter da = new SqlDataAdapter();
DataSet ds = new DataSet();
da.SelectCommand = cmd;
da.Fill(ds);
return ds;
}
}
catch
{
throw;
}
}
/// return a dataset
public static DataSet ExecuteDataSet(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
return ExecuteDataSet(connectionString, cmdType, cmdText, commandParameters);
}
/// return a dataset
public static DataSet ExecuteDataSetProducts(string cmdText, params SqlParameter[] commandParameters)
{
return ExecuteDataSet(connectionString, CommandType.StoredProcedure, cmdText, commandParameters);
}
/// return a dataset
public static DataSet ExecuteDataSetText(string cmdText, params SqlParameter[] commandParameters)
{
return ExecuteDataSet(connectionString, CommandType.Text, cmdText, commandParameters);
}
public static DataView ExecuteDataSet(string connectionString, string sortExpression, string direction, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
try
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
SqlDataAdapter da = new SqlDataAdapter();
DataSet ds = new DataSet();
da.SelectCommand = cmd;
da.Fill(ds);
DataView dv = ds.Tables[0].DefaultView;
dv.Sort = sortExpression + " " + direction;
return dv;
}
}
catch
{
throw;
}
}
#endregion
#region // ExecuteScalar方法
/// 返回一个对象
public static object ExecuteScalar(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
return ExecuteScalar(SqlHelper.connectionString, cmdType, cmdText, commandParameters);
}
/// 返回一个对象
public static object ExecuteScalarProducts(string cmdText, params SqlParameter[] commandParameters)
{
return ExecuteScalar(SqlHelper.connectionString, CommandType.StoredProcedure, cmdText, commandParameters);
}
/// 返回一个对象
public static object ExecuteScalarText(string cmdText, params SqlParameter[] commandParameters)
{
return ExecuteScalar(SqlHelper.connectionString, CommandType.Text, cmdText, commandParameters);
}
/// An object that should be converted to the expected type using Convert.To{Type}
public static object ExecuteScalar(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
using (SqlConnection connection = new SqlConnection(connectionString))
{
PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters);
object val = cmd.ExecuteScalar();
cmd.Parameters.Clear();
return val;
}
}
/// An object that should be converted to the expected type using Convert.To{Type}
public static object ExecuteScalar(SqlConnection connection, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters);
object val = cmd.ExecuteScalar();
cmd.Parameters.Clear();
return val;
}
#endregion
/// Cached SqlParamters array
public static SqlParameter[] GetCachedParameters(string cacheKey)
{
SqlParameter[] cachedParms = (SqlParameter[])parmCache[cacheKey];
if (cachedParms == null)
return null;
SqlParameter[] clonedParms = new SqlParameter[cachedParms.Length];
for (int i = 0, j = cachedParms.Length; i < j; i++)
clonedParms[i] = (SqlParameter)((ICloneable)cachedParms[i]).Clone();
return clonedParms;
}
/// bool结果
public static bool Exists(string strSql, params SqlParameter[] cmdParms)
{
int cmdresult = Convert.ToInt32(ExecuteScalar(connectionString, CommandType.Text, strSql, cmdParms));
if (cmdresult == 0)
{
return false;
}
else
{
return true;
}
}
}
}