在mysql数据里有一张表,建表语句如下: ``` CREATE TABLE `audit_bin_info` ( `BIN_PID` int(8) NOT NULL, `HOST_NAME` varchar(100) DEFAULT NULL , `SOCK_ID` int(8) DEFAULT NULL , `BIN_STS` tinyint(2) DEFAULT NULL , `BOOT_NAME` varchar(100) DEFAULT NULL, `CHANNEL_ID` tinyint(2) DEFAULT NULL , `START_DATE` datetime DEFAULT NULL , `UPDATE_DATE` datetime DEFAULT NULL, `MODULE_NAME` varchar(100) DEFAULT NULL, `BUSI_CONTENT` varchar(4000) DEFAULT NULL, `TASK_STS` smallint(4) DEFAULT NULL , `ID` bigint(15) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`ID`) USING BTREE, KEY `IDX_BIN_INFO` (`BOOT_NAME`,`MODULE_NAME`,`CHANNEL_ID`) USING BTREE ) ENGINE=InnoDB AUTO_INCREMENT=16766000 DEFAULT CHARSET=utf8 ``` 帮我写一个c++的函数,函数定义如下: ```void CMonitorBase::binlogToDb( const AISTD string & strBinName, const AISTD string & strBinType, const CClientList & listClient, const AISTD string &m_strChannelId, otl_connect& ocDbConn) ``` 它需求实现以下功能: 1、使用otl_stream查询audit_bin_info表,查询语句为```select id, bin_pid, host_name, sock_id from audit_bin_info where boot_name='"+strBinName+"' and module_name='"+strBinType+"' and channel_id = " + m_strChannelId```;将查到数据保存在一个vector结构中; 2、将查到的表数据跟listClient中的数据做比较,比较条件为表数据中的bin_pid, host_name, sock_id分别和CClient结构中的m_iAppId,m_strHostName,m_iSockId,都相等,则认为找到数据。 3、如果在listClient中找到相等的数据,则根据找到的数据update表中的数据,需要更新的字段为BIN_STS, START_DATE, BUSI_CONTENT,TASK_STS,UPDATE_DATE,前4个字段对别对应CClient结构中的m_nClientSts,dtmBoot,m_strBusiContent,m_nTaskSts,UPDATE_DATE取系统时间; 如果在listClient中没找到相等的数据,则根据id值删除audit_bin_info表中的数据; 最后如果是listClient中多出来的数据,需要插入到audit_bin_info表中; 其中CClient和CClientList的定义如下: ``` class CClient { public: long m_idx; int32 m_iSockId; int32 m_iAppId; int64 m_llTaskId; int16 m_nTaskSts; int16 m_nClientSts; int16 m_nMaxTask; int16 m_nChannelId; AISTD string m_strBusiContent; AISTD string m_strHostName; INT64LIST m_listDetail; AISTD string m_strSpecSts; CBSDateTime dtmBoot; AISTD string m_strRetMsg; int16 m_nStatus; int16 m_nDispEsc; CClient() : m_idx(0), m_iSockId(0), m_iAppId(0), m_llTaskId(0), m_nTaskSts(0), m_nClientSts(1), m_nMaxTask(1), m_nChannelId(0), m_strSpecSts("0"), m_nStatus(0), m_nDispEsc(0) { dtmBoot = CBSDateTime::currentDateTime(); }; }; typedef AISTD vector<CClient*> CClientList; ```
时间: 2024-04-21 10:22:22 浏览: 20
以下是一个示例的C++函数实现,满足你的需求:
```cpp
void CMonitorBase::binlogToDb(
const std::string& strBinName,
const std::string& strBinType,
const CClientList& listClient,
const std::string& m_strChannelId,
otl_connect& ocDbConn)
{
try {
// 查询数据库
otl_stream dbStream(1,
"select id, bin_pid, host_name, sock_id from audit_bin_info where boot_name=:bn<char[100]> and module_name=:mn<char[100]> and channel_id=:cid<int>",
ocDbConn);
dbStream << strBinName.c_str() << strBinType.c_str() << std::stoi(m_strChannelId);
// 存储查询结果的向量
std::vector<std::tuple<long, int, std::string, int>> dbData;
// 遍历查询结果,将数据保存在向量中
while (!dbStream.eof()) {
long id;
int bin_pid;
char host_name[101];
int sock_id;
dbStream >> id >> bin_pid >> host_name >> sock_id;
dbData.push_back(std::make_tuple(id, bin_pid, std::string(host_name), sock_id));
}
// 遍历listClient中的数据
for (const auto& client : listClient) {
bool found = false;
// 遍历查询结果的向量,查找匹配的数据
for (const auto& data : dbData) {
long id = std::get<0>(data);
int bin_pid = std::get<1>(data);
std::string host_name = std::get<2>(data);
int sock_id = std::get<3>(data);
// 比较bin_pid, host_name, sock_id是否相等
if (bin_pid == client->m_iAppId &&
host_name == client->m_strHostName &&
sock_id == client->m_iSockId) {
found = true;
// 更新表中的数据
otl_stream updateStream(1,
"update audit_bin_info set bin_sts=:bs<int>, start_date=:sd<timestamp>, busi_content=:bc<char[4000]>, task_sts=:ts<int>, update_date=:ud<timestamp> where id=:id<long>",
ocDbConn);
updateStream << client->m_nClientSts << client->dtmBoot << client->m_strBusiContent << client->m_nTaskSts << CBSDateTime::currentDateTime() << id;
break;
}
}
// 如果在查询结果中没有找到匹配的数据,则删除表中的数据
if (!found) {
otl_stream deleteStream(1,
"delete from audit_bin_info where id=:id<long>",
ocDbConn);
deleteStream << client->m_idx;
}
}
// 遍历查询结果的向量,查找在listClient中没有出现的数据,并将其插入表中
for (const auto& data : dbData) {
long id = std::get<0>(data);
int bin_pid = std::get<1>(data);
std::string host_name = std::get<2>(data);
int sock_id = std::get<3>(data);
bool found = false;
for (const auto& client : listClient) {
if (bin_pid == client->m_iAppId &&
host_name == client->m_strHostName &&
sock_id == client->m_iSockId) {
found = true;
break;
}
}
// 如果在listClient中没有找到匹配的数据,则插入表中
if (!found) {
otl_stream insertStream(1,
"insert into audit_bin_info (bin_pid, host_name, sock_id) values (:bp<int>, :hn<char[100]>, :sid<int>)",
ocDbConn);
insertStream << bin_pid << host_name.c_str() << sock_id;
}
}
}
catch (const otl_exception& ex) {
// 处理异常
std::cerr << "OTL Exception: " << ex.msg << std::endl;
}
}
```
请注意,上述代码仅为示例代码,可能需要根据实际情况进行调整和修改。同时,建议在使用数据库操作时进行错误处理和异常处理,以提高代码的健壮性。