如何根据数据库写接口

⑴ 如何使用sql server 数据库接口

要实现跟数据库连接操作，第一：写一个数据库连接类，第二：配置访问数据库基本元素,可以采用*.XML形式（配置IP，端口，用户名，密码等），第三：门诊收费系统会提供一个接口调用数据库连接类的。一般像在医院或门诊这地方，一般都是采用配置形式做数据库连接的，直接拿配置文件修改一下连接IP地址就可以了，但确保数据库服务器上有数据库表，有连接配置上还要提供一下服务器IP，端口，和数据库用户名和密码就可以了。在SQL SERVER2008数据库上只做授权操作即可，授权操作可以有用户管理里面进行。允许该用户查询和修改等操作就OK了。

⑵ 请问你是怎么实现的一个项目使用不同数据库，接口怎么写的

自己封装一个用ADO方式访问数据库的类，然后再根据不同的数据库传入不同的连接字符串就可以实现对各种数据库的访问。其实操作各种数据库的sql语句都是一样的，就是刚开始打开数据库的连接字符串不一样。当然不同的数据库添加数据源的方式不一样。

⑶ C#开发，我要为数据库中的一个表中一个字段写一个接口，供其他人调用

两种办法，一是你的传统方法 GET/SET
第二种。供其它人调用，你可以写一个方法，把结果编历出来。别人调用其实就是用你的数据，你把数据先编历到一个 DATAVEIW。让调 用你的人自己去遍历你的DATAVIEW就可以了

⑷ php中怎么把数据库连接写成一个接口

我自己封装的一个

<?php
class AppConfig{
public static $dbParam = array(
'dbHost' => 'localhost',
'dbUser' => 'root',
'dbPassword' =>'',
'dbName' => '数据库名',
'dbCharset' => 'utf8',
'dbPort' => 3306,
'dbPrefix' => 'test_',
'dbPconnect' => 0,
'dbDebug' => true,
);
}

class Model {
private $version = ''; //mysql版本
private $config = array(); //数据库配置数组
private $class; //当前类名
public $tablepre = 'ts_'; //表前缀
public $db = ''; //库名
public $table = ''; //表名
private static $link; //数据库链接句柄
private $data = array(); //中间数据容器
private $condition = ''; //查询条件
private $fields = array(); //字段信息
private $sql = array(); //sql集合，调试用
public $primaryKey = 'id'; //表主键

//构造函数初始化
public function __construct($dbParam = array()) {
$this->config = (is_array($dbParam) && !empty($dbParam)) ? $dbParam : AppConfig::$dbParam;
$this->connect();
$this->init();
}

//链接数据库
private function connect() {
if($this->config['dbPconnect']) {
self::$link = @mysql_pconnect($this->config['dbHost'], $this->config['dbUser'], $this->config['dbPassword']);
}else{
self::$link = @mysql_connect($this->config['dbHost'], $this->config['dbUser'], $this->config['dbPassword'], true);
}
mysql_errno(self::$link) != 0 && $this->errdie('Could not connect Mysql: ');
$this->db= !empty($this->db) ? $this->db : $this->config['dbName'];

$serverinfo = $this->version();
if ($serverinfo > '4.1' && $this->config['dbCharset']) {
mysql_query("SET character_set_connection=".$this->config['dbCharset'].",character_set_results=".$this->config['dbCharset'].",character_set_client=binary", self::$link);
}
if ($serverinfo > '5.0') {
mysql_query("SET sql_mode=''", self::$link);
}
@mysql_select_db($this->db, self::$link) or $this->errdie('Cannot use database');
return self::$link;
}

//表基本信息初始化
protected function init() {
$this->class = get_class($this);
$this->table = !empty($this->table) ? $this->table : strtolower($this->class);
$this->table = $this->tablepre . $this->table;
return $this;
}

//设置属性值
public function __set($name, $value) {
//exit($value);
$this->data['fields'][$name] = $value;
}

//获取属性值
public function __get($name) {
if(isset($this->data['fields'][$name])) {
return($this->data['fields'][$name]);
}else {
return NULL;
}
}

//字段信息处理
private function implodefields($data) {
if (!is_array($data)) {
$data = array();
}
$this->fields = !empty($this->data['fields']) ? array_merge($this->data['fields'], $data) : $data;
foreach($this->fields as $key => $value) {
$fieldsNameValueStr[] = "`$key`='$value'";
$fieldsNameStr[] = "`$key`";
$fieldsValueStr[] = "'$value'";
}
return array($fieldsNameValueStr, $fieldsNameStr, $fieldsValueStr);
}

//条件判断组装
private function condition($where = NULL) {
if (is_numeric($where)) {
$where = "WHERE `{$this->primaryKey}`='{$where}' LIMIT 1";
}elseif (is_array($where)){
$where = "WHERE `{$this->primaryKey}` in (".implode(',',$where).")";
}elseif(!empty($this->data['condition'])){
//'预留WHERE', 'order', 'group', 'limit' …………等条件关键词处理接口
$where = $where ? "WHERE {$where}" : "WHERE 1";
isset($this->data['condition']['where']) && $where .= ' AND '.$this->data['condition']['where'];
isset($this->data['condition']['group']) && $where .= ' GROUP BY '.$this->data['condition']['group'];
isset($this->data['condition']['order']) && $where .= ' ORDER BY '.$this->data['condition']['order'];
isset($this->data['condition']['limit']) && $where .= ' LIMIT '.$this->data['condition']['limit'];
}else{
$where = "WHERE {$where}";
}
$this->condition = $where;
return $this;
}

//插入数据
public function insert($data = array(), $replace = false) {
$fields = $this->implodefields($data);
$insert = $replace ? 'REPLACE' : 'INSERT';
$sql = "{$insert} INTO `{$this->db}`.`{$this->table}` (".implode(', ',$fields[1]).") values (".implode(', ',$fields[2]).")";
$this->query($sql);
return $this->getInsertId();
}

//更新数据
public function update($data = array() ,$where = '') {
$numargs = func_num_args();
if ($numargs == 1) {
$where = $data;
$data = array();
}
$fields = $this->implodefields($data);
$this->condition($where);
$sql = "UPDATE `{$this->db}`.`{$this->table}` SET ".implode(', ',$fields[0])." {$this->condition}";
$this->query($sql);
return $this->getAffectedRows();
}

//删除数据
public function delete($where = NULL) {
if(!is_array($where) && strtolower(substr(trim($where), 0, 6)) == 'delete'){
$sql = $where;
}else{
$this->condition($where);
$sql = "DELETE FROM `{$this->db}`.`{$this->table}` {$this->condition}";
}
$this->query($sql);
return $this->getAffectedRows();
}

//查询数据
public function select($where = NULL, $fields = '*') {
if(!is_array($where) && strtolower(substr(trim($where), 0, 6)) == 'select'){
$sql = $where;
}else{
$this->condition($where);
$sql = "SELECT {$fields} FROM `{$this->db}`.`{$this->table}` {$this->condition}";
}
return $this->fetch($this->query($sql));
}

//查询一条数据
public function getOne($where, $fields = '*') {
$data = $this->select($where, $fields = '*');
if($data) {
return $data[0];
}
return array();
}

//查询多条数据
public function getAll($where, $fields = '*') {
$data = $this->select($where, $fields = '*');
return $data;
}

//结果数量
public function getCount($where = '', $fields = '*') {
$this->condition($where);
$sql = "SELECT count({$fields}) as count FROM `{$this->db}`.`{$this->table}` {$this->condition}";
$data = $this->query($sql);
if($data){
return @mysql_result($data,0);
}
return 0;
}

//执行sql语句（flag为0返回mysql_query查询后的结果，为1返回lastid，其他返回影响行数，默认为2返回影响行数）
public function query($sql, $flag = '0', $type = '') {
if ($this->config['dbDebug']) {
$startime = $this->microtime_float();
}

//查询
if ($type == 'UNBUFFERED' && function_exists('mysql_unbuffered_query')) {
$result = @mysql_unbuffered_query($sql, self::$link);
} else {
//exit($sql);
$result = @mysql_query($sql, self::$link);
}

//重试
if (in_array(mysql_errno(self::$link), array(2006,2013)) && empty($result) && $this->config['dbPconnect']==0 && !defined('RETRY')) {
define('RETRY',true); @mysql_close(self::$link); sleep(2);
$this->connect();
$result = $this->query($sql);
}

if ($result === false) {
$this->errdie($sql);
}

if ($this->config['dbDebug']) {
$endtime = $this->microtime_float();
$this->sql[] = array($sql,$endtime-$startime);
}
//清空操作数据
$this->data = array();
return $flag == '0' ? $result : ($flag == '1' ? $this->getInsertId() : $this->getAffectedRows());
}

//返回结果$onlyone为true返回一条否则返回所有,$type有MYSQL_ASSOC,MYSQL_NUM,MYSQL_BOTH
public function fetch($result, $onlyone = false, $type = MYSQL_ASSOC) {
if($result){
if ($onlyone) {
$row = @mysql_fetch_array($result, $type);
return $row;
}else{
$rowsRs = array();
while($row=@mysql_fetch_array($result, $type)) {
$rowsRs[] = $row;
}
return $rowsRs;
}
}
return array();
}

//可以运行SELECT，SHOW，EXPLAIN 或 DESCRIBE 等返回一个资源标识符的语句得到返回结果数组
public function show($sql, $onlyone = false) {
return $this->fetch($this->query($sql), $onlyone);
}

// 使用call函数处理同类型函数
private function __call($name, $arguments) {
$callArr = array('on', 'where', 'order', 'between', 'group', 'limit');
if (in_array($name, $callArr)) {
$this->data['condition'][$name] = $arguments[0];
}else{
$this->errdie("function error: function {$name} is not in ($this->class) class exist");
}
return $this;

}

//返回最后一次插入ID
public function getInsertId() {
return @mysql_insert_id(self::$link);
}

//返回受影响行数
public function getAffectedRows() {
return @mysql_affected_rows(self::$link);
}

//获取错误信息
private function error() {
return ((self::$link) ? @mysql_error(self::$link) : @mysql_error());
}

//获取错误信息ID
private function errno() {
return ((self::$link) ? @mysql_errno(self::$link) : @mysql_errno());
}

//获取版本信息
function version() {
if(empty($this->version)) {
$this->version = mysql_get_server_info(self::$link);
}
return $this->version;
}

//打印错误信息
private function errdie($sql = '') {
if ($this->config['dbDebug']) {
die('</BR><B>MySQL ERROR</B></BR>
SQL:'.$sql.'</BR>
ERRNO:'.$this->errno().'</BR>
ERROR:'.$this->error().'</BR>');
}
die('DB ERROR！！！');
}

//获取时间微妙数
private function microtime_float()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}

//析构函数
public function __destruct() {
echo '<hr>';
$this->config['dbDebug'] && print_r($this->sql);
//unset($this->result);
//unset($this->condition);
//unset($this->data);
}
}

class user extends Model {
//public $db = 'qsf_mvc';
//public $table = 'user';
public $primaryKey = 'uid';
}

$userObj = new user();
//---------------------------------------插入数据方法一-----------------------------------------
//模拟ActiveRecord模式 插入数据
$userObj->username = 'hoho';
$userObj->passwd = '1478522';
$userObj->email = '[email protected]';
$userObj->sex = 1;
$userObj->desc = '清洁工';
$insetId = $userObj->insert();
if ($insetId > 0) {
echo "插入ID为:{$insetId}<BR>";
}

//---------------------------------------插入数据方法二-----------------------------------------
//直接数组做参数插入数据
$userArr = array(
'username' => 'hoho',
'passwd' => '1478522',
'email' => '[email protected]',
'sex' => '1',
'desc' => '厨师',
);
$insetId = $userObj->insert($userArr);
if ($insetId > 0) {
echo "插入ID为:{$insetId}<BR>";
}

//---------------------------------------更新数据方法一----------------------------------------
$userObj->username = 'h111oho';
$userObj->passwd = '1478511122';
$userObj->email = '[email protected]';
$userObj->sex = 1;
$userObj->desc = '清洁工';
$affectedRows1 = $userObj->update(89);
if ($affectedRows1 > 0) {
echo "影响行数为:{$affectedRows1}<BR>";
}

//---------------------------------------更新数据方法二----------------------------------------
//更新记录（传递参数的方式和insert操作一样）
$userArr = array(
'username' => 'hohoho',
'passwd' => '1474rr4448522',
'email' => '[email protected]',
'sex' => '0',
'desc' => '厨师qq',
);
$affectedRows = $userObj->update($userArr, $insetId);
if ($affectedRows > 0) {
echo "影响行数为:{$affectedRows}<BR>";
}

//----------------------------------------查询数据----------------------------------------------
$userRs0 = $userObj->select(8); //单个主键值
//print_r($userRs0);

$userRs1 = $userObj->select(array(1,5,8)); //多个主键值的数组
//print_r($userRs1);

$userRs2 = $userObj->select('select count(*) as count from user where uid > 20'); //直接完整sql语句
//print_r($userRs2);

$userRs3 = $userObj->select("`uid` > 0"); //where条件
//print_r($userRs3);

$userRs4 = $userObj->getOne("`uid` > 0"); //获取单条记录
//print_r($userRs4);

$usersRs5 = $userObj->getAll("`uid` > 0"); ////获取所有记录
//print_r($usersRs5);

$usersRs6 = $userObj->limit('0,10')->where('uid > 100')->order('uid DESC')->group('username')->select();
//print_r($usersRs6);

//----------------------------------------删除数据-----------------------------------------------
//删除操作传递参数的方式和select操作一样
$userObj->delete(60); //单个主键值
$userObj->delete(array(1,5,8)); //多个主键值的数组
$userObj->delete('delete from user where uid > 100'); //直接完整sql语句
$userObj->delete("`uid` > 100"); //where条件
$userObj->limit('5')->where('uid > 80')->delete();
//----------------------------------------特殊查询-----------------------------------------------
$userShowRs = $userObj->show('show create table user', true); //获取特殊查询的结果,第二个参数代表返回一条结果还是所有的结果

⑸ 有了数据接口规范,怎么写接口程序

你所谓的接口规范是一组API吗，是以数据文件还是数据库做为输入

我觉得应该是后者，那就通过标准接口如odbc来读取需要的数据，然后按老师要求输出文本，应该不太难

先问清楚老师的要求的说

⑹ 网站的数据库查询接口怎么做

jsp网站,想提供接口给其他项目获取数据库的数据方法如下：
jsp接收参数，就跟java类接收参数一样，用request.getParameter("参数名");获取
网页游戏发送上来的参数，然后调用数据库，把需要的信息查询出来，通过字符串或者xml或者
json总之一切你想要的数据格式，返回出来就可以了。
返回出来实现：直接利用outputstream对象write出来即可，最后记得关闭。
java.io.OutputStream os = response.getOutputStream();
os.write(buf, 0, readSize);

⑺ 我想问如何用java语言写连接mysql数据库的接口，使其他的语言的程序能够通过我这个接口访问数据

你好 我写下思路
1 创建一个javaweb工程 该工程部署再服务器中 你可以访问链接 例如 http localhost 8080/test/user?m=delete&id=1
这个链接的功能删除id为1 的user ，这在你test工程里面实现 属于javaweb开发本身的知识 ，然后你把这个链接给别人 因为是http请求 什么语言都可以的 例如php和.net都可以创建http请求 他们只需要把id值改成2 或者3 不就可以删除用户2或者用户3了嘛
聚尔淘 juertao.com 技术部工程师为你解答

⑻ 如何为sql server数据库写一个编程接口，需要注意什么问题

编程写一个连接池
用的时候从池中拿出connection，不用了就还回去
每次取的时候判断是否为null，是就给个新的，不是就继续让他用

⑼ 做个数据库接口

9.Sql Server7.0/2000数据库
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")
::CoInitialize(NULL); // 初始化OLE/COM库环境 ，为访问ADO接口做准备

_RecordsetPtr m_pRecordset("ADODB.Recordset");
_ConnectionPtr m_pConnection("ADODB.Connection");

_bstr_t bstrSQL("select * from stu_info"); //查询语句
char * query_cmd = "DELETE FROM stu_info WHERE sname = ’本拉登’";

try
{
// 创建Connection对象
m_pConnection.CreateInstance("ADODB.Connection");
// 设置连接字符串，必须是BSTR型或者_bstr_t类型
_bstr_t strConnect= "Provider=SQLOLEDB;Server=(local);Database=student; uid=sa; pwd=123;";
//若数据库在网络上则Server为形如(192.168.1.5,3340)
//用户sa和密码123只是针对我的库
m_pConnection->Open(strConnect,"","",adModeUnknown);
if(m_pConnection==NULL)
cerr<<"Lind data ERROR!\n";
// 创建记录集对象
m_pRecordset.CreateInstance(__uuidof(Recordset));
// 取得表中的记录
m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),
adOpenDynamic,adLockOptimistic,adCmdText);

_variant_t vsnum,vsname,vsage,vssex,vsmajor; //对应库中的snum,sname,sage,ssex,smajor
cout << "学号 姓名 年龄 姓别 专业";
cout << "\n----------------------------------------------------------------\n";

while (!m_pRecordset->EndOfFile)
{
vsnum = m_pRecordset->GetCollect(_variant_t((long)0));//这儿给字段编号和字段名都可以
vsname = m_pRecordset->GetCollect("sname");
vsage = m_pRecordset->GetCollect("sage");
vssex = m_pRecordset->GetCollect("ssex");
vsmajor = m_pRecordset->GetCollect("smajor");
if (vsnum.vt != VT_NULL && vsname.vt != VT_NULL && vsage.vt != VT_NULL
&& vssex.vt != VT_NULL && vsmajor.vt != VT_NULL)
{
cout.setf(ios::left);
cout << setw(14) << (char*)(_bstr_t)vsnum;
cout << setw(14) << (char*)(_bstr_t)vsname;
cout << setw(8) << vsage.lVal;
cout << setw(8) << (char*)(_bstr_t)vssex;
cout <<setw(20) << (char*)(_bstr_t)vsmajor;
cout.unsetf(ios::left);
cout << endl;
}
m_pRecordset->MoveNext(); ///移到下一条记录
}
cout << "\n----------------------------------------------------------------\n";
cout << "\n请输入你要添加的学生信息\n";
cout << "学号:";
cin >> student.snum;
cout << "\n姓名:";
cin >> student.sname;
cout << "\n年龄:";
cin >> student.sage;
cout << "\n姓别:";
cin >> student.ssex;
cout << "\n专业:";
cin >> student.smajor;
m_pRecordset->MoveFirst(); //移动到第一条记录
m_pRecordset->AddNew(); ///添加新记录
m_pRecordset->PutCollect("snum",_variant_t(student.snum));
m_pRecordset->PutCollect("sname",_variant_t(student.sname));
m_pRecordset->PutCollect("sage",_variant_t(student.sage));
m_pRecordset->PutCollect("ssex",_variant_t(student.ssex));
m_pRecordset->PutCollect("smajor",_variant_t(student.smajor));
m_pRecordset->Update();

m_pConnection->Execute(query_cmd,NULL,1); //用Execute执行sql语句来删除
m_pRecordset->Close(); // 关闭记录集
}
// 捕捉异常
catch(_com_error e)
{
// 显示错误信息
cerr << "\nERROR:" << (char*)e.Description();//抛出异常
}
if(m_pConnection->State)
m_pConnection->Close();
::CoUninitialize();

3.显示表格
/*
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")
*/
CoInitialize(NULL);
_bstr_t varSource="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=*.mdb";
//_bstr_t varSource="Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;"
_ConnectionPtr m_pConnection(_uuidof(Connection));
m_pConnection->Open(varSource,"","",adModeUnknow);
//打开属性为默认（adModeRead(只读)，adModeWrite(可写)，adModeReadWrite(可读写)等）
_RecordsetPtr m_pSet(_uuid(Recordset));
try {
HRESULT hr=m_pSet->Open(%%1,m_pConnection.GetInterfacePtr(),
adOpenDynamic,adLockPessimistic,adCmdText);
}
catch(_com_error *e){
AfxMessageBox(e->ErrorMessage());
}
if(SUCCESSED(hr))
{
//表打开成功
}
FieldsPtr p_fields=m_pSet->Fields;
FieldPtr p_field;
_variant_t var_index;
LPCSTR field_name;
int index=0;
_bstr_t bstr_field_name;
int countfields=p_fields->GetCount();
CString *Column=new CString[countfields];
CListCtrl *pList=(CListCtrl*)GetDlgItem(%%1);//IDC_LIST_TABLEDATA
VERIFY(pList);
pList->DeleteAllItems();
for(index=0;index<countfields;index++)
{
var_index.vt=VT_I4;
var_index.IVal=index;
p_field=p_fields->Item[var_index];
bstr_field_name=p_field->GetName();
field_name=(LPCSTR)bstr_field_name;
Column[index]=field_name;
int ColumnWidth=Column[index].GetLength()*15;
pList->InsertColumn(index,field_name,LVCFMT_CENTER,ColumnWidth);
}
int i=0;
_bstr_t vCol;
//pList->SetTextBkColor(RGB(122,200,122));
//pList->SetTextColor(RGB(0,0,200));
while(!m_pSet->adoEOF)
{
pList->Insert(i,atoi(i));
for(int j=0;j<countfields;j++)
{
vCol=m_pSet->GetCollect((long)j);
pList->SetItemText(i,j,vCol);
}
m_pSet->MoveNext();
i++;
}
CoUninitialize(NULL);

4.操作表格
/*
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")
*/
CoInitialize(NULL);
_bstr_t varSource="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=*.mdb";
//_bstr_t varSource="Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;"
_ConnectionPtr m_pConnection(_uuidof(Connection));
m_pConnection->Open(varSource,"","",adModeUnknow);
//打开属性为默认（adModeRead(只读)，adModeWrite(可写)，adModeReadWrite(可读写)等）
_RecordsetPtr m_pSet(_uuid(Recordset));
try {
HRESULT hr=m_pSet->Open(%%1,m_pConnection.GetInterfacePtr(),
adOpenDynamic,adLockPessimistic,adCmdText);
}
catch(_com_error *e){
AfxMessageBox(e->ErrorMessage());
}
if(SUCCESSED(hr))
{
//表打开成功
}
FieldsPtr p_fields=m_pSet->Fields;
FieldPtr p_field;
_variant_t var_index;
LPCSTR field_name;
int index=0;
_bstr_t bstr_field_name;
int countfields=p_fields->GetCount();
CString *Column=new CString[countfields];
CListCtrl *pList=(CListCtrl*)GetDlgItem(%%1);//IDC_LIST_TABLEDATA
VERIFY(pList);
pList->DeleteAllItems();
for(index=0;index<countfields;index++)
{
var_index.vt=VT_I4;
var_index.IVal=index;
p_field=p_fields->Item[var_index];
bstr_field_name=p_field->GetName();
field_name=(LPCSTR)bstr_field_name;
Column[index]=field_name;
int ColumnWidth=Column[index].GetLength()*15;
pList->InsertColumn(index,field_name,LVCFMT_CENTER,ColumnWidth);
}
int i=0;
_bstr_t vCol;
//pList->SetTextBkColor(RGB(122,200,122));
//pList->SetTextColor(RGB(0,0,200));
while(!m_pSet->adoEOF)
{
pList->Insert(i,atoi(i));
for(int j=0;j<countfields;j++)
{
vCol=m_pSet->GetCollect((long)j);
pList->SetItemText(i,j,vCol);
}
m_pSet->MoveNext();
i++;
}
CoUninitialize(NULL);

6.关闭时断开连接
::ExitInstance()
{
if (adStateOpen == ADOConn->State)
ADOConn->Close();
ADOConn.Release();
if(adStateOpen == m_pADOset->State)
m_pADOset->Close();
m_pADOset.Release();
return CWinApp::ExitInstance();
}

22.批量执行SQL和存储过程
22.1、如果用ODBC访问数据库的话，可参考下列代码：
CDatabase * pDatabase = new CDatabase;
TRY
{
pDatabase->OpenEx( _T("DSN=ODBCName;UID=%%1;PWD=%%2"), CDatabase::noOdbcDialog);
}
CATCH (CDBException, e)
{
delete pDatabase;
return;
}END_CATCH
SQL.Format("exec sp_Name");//有参数的话直接写再后面
pDatabase->ExecuteSQL(SQL);
pDatabase->Close();
delete pDatabase;

22.2、用ADO调用存储过程
_ConnectionPtr Conn = NULL;
_RecordsetPtr Rs = NULL;
_CommandPtr Cmd = NULL;
CoInitialize(NULL);
Conn.CreateInstance ( __uuidof(Connection));
Rs.CreateInstance (__uuidof(Recordset));
Cmd.CreateInstance (__uuidof(Command));
Conn->Open(L"db", L"sa", L"", adOpenUnspecified); //打开正常
//如下为_CommandPtr对象参数的赋值和调用
Cmd->ActiveConnection = Conn;
Cmd->CommandText = "SP_TEST";
//数据库中实际存在这个测试存储过程，select * from atable,不传递参数
Cmd->CommandType = adCmdStoredProc;
Cmd->Parameters->Refresh();
Rs = Cmd->Execute( NULL,NULL, adCmdUnknown ); //COM出错。
//注释掉的代码为直接的SQL语句提交，运行正确。
//Cmd->ActiveConnection=Conn;
//Cmd->CommandText = "select * from atable";
//Cmd->CommandType = adCmdText;
//Cmd->Parameters->Refresh();
//Rs = Cmd->Execute(NULL,NULL,adCmdUnknown);
Rs->Close();
Conn->Close();
CoUninitialize();

⑽ 如何写通用的数据库的crud接口

您好，您这样：
package com.tgb.lk.demo.model;
import com.tgb.lk.ahibernate.annotation.Column;
import com.tgb.lk.ahibernate.annotation.Id;
//此处没有加Table属性,它是其他类的基类,本类中用@Column注解的字段在子类中同样会被创建到表中.
public class Person {
@Id
@Column(name = "id")
private int id; // 主键,int类型,数据库建表时此字段会设为自增长

@Column(name = "name", length = 20)
private String name; // 名字长度一般不会超过20个字符吧,length=20数据字段的长度是20

@Column(name = "age", type = "INTEGER")
private int age; // 年龄一般是数值,用type = "INTEGER"规范一下吧.

// //假设您开始时没有此属性,程序开发中才想到此属性,去掉代码注释试试吧,数据库增删改查不用修改任何代码哦.
// @Column(name = "sex")
// private String sex;

// 有些字段您可能不希望保存到数据库中,不用@Column注释就不会映射到数据库.
private String noSaveFild;

//get和set方法.
//....

@Override
public String toString() {
return "id=" + id + ", name=" + name + ",age=" + age;
}
}<span style="font-size:18px;">
</span>
Teacher.java

[java] view plain
package com.tgb.lk.demo.model;
import com.tgb.lk.ahibernate.annotation.Column;
import com.tgb.lk.ahibernate.annotation.Table;

//自动生成的建表语句:
//crate table [t_teacher]: CREATE TABLE t_teacher (id INTEGER primary key autoincrement, title TEXT, name TEXT(20), age INTEGER )

@Table(name = "t_teacher")
public class Teacher extends Person {
@Column(name = "title")
private String title;// 职称

//get和set方法.
//....

@Override
public String toString() {
return "Teacher [" + super.toString() + ",title=" + title + "]";
}
}<span style="font-size:18px;">
</span>
Student.java
[java] view plain
package com.tgb.lk.demo.model;

import com.tgb.lk.ahibernate.annotation.Column;
import com.tgb.lk.ahibernate.annotation.Table;

//自动生成的建表语句:
//CREATE TABLE t_student (id INTEGER primary key autoincrement, classes TEXT, teacher_id INTEGER, name TEXT(20), age INTEGER )

@Table(name = "t_student")
public class Student extends Person {

@Column(name = "teacher_id")
private int teacherId;// 班主任id

@Column(name = "classes")
private String classes;// 班级

//get和set方法
//...

@Override
public String toString() {
return "Student [" + super.toString() + ",teacherId=" + teacherId
+ ", classes=" + classes + "]";
}
}<span style="font-size:18px;">
</span>