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DBHomework/main.cpp
2017-12-28 18:18:44 +08:00

110 lines
2.9 KiB
C++

#include "bs_util.h"
#include "handler.h"
using namespace std;
map<int,function<void(Request& req,Session& se,Response& res,json& j)>> _handlers;
int RequestDispatch(Request& req,Session& se,Response& res,json& j,int Key)
{
if(_handlers.find(Key)!=_handlers.end())
{
if(_handlers[Key])
{
j["RDKey"]=Key;
_handlers[Key](req,se,res,j);
return 0;
}
else
{
jsonfail_func(j,err_general,"No action is associated to key.");
return -1;
}
}
else
{
jsonfail_func(j,err_general,"Failed to find appropriate action to key.");
return -1;
}
}
#define REG_HANDLER(fn,key) _handlers.insert(make_pair(key,fn))
void InitHandlers()
{
REG_HANDLER(UserLogin,1); /// 用户登录
REG_HANDLER(UserLogout,2); /// 用户登出
REG_HANDLER(CheckLogin,3); /// 检查是否已登录
REG_HANDLER(CheckLoginX,4); /// 检查是否已登录(专用于登录页面,用于快速登录)
REG_HANDLER(UserReaderAdd,5); /// 添加用户(同时添加读者信息)
REG_HANDLER(UserReaderEdit,6); /// 修改用户(除管理员外)
REG_HANDLER(UserReaderRemove,7); /// 删除用户(仅能删除读者账户)
REG_HANDLER(UserSearch,8); /// 用户搜索
REG_HANDLER(UserReaderGet,9); /// 账户读者信息获取
//REG_HANDLER(UserReaderGetLow,10); /// 账户读者信息获取(低权限)
REG_HANDLER(BookSearch,11); /// 图书搜索
REG_HANDLER(BookGetInfo,12); /// 获取图书信息
REG_HANDLER(BookGetObjInfo,13); /// 获取图书实体信息
REG_HANDLER(BookGetBorrowed,14); /// 获取已借阅的书籍
REG_HANDLER(BookObjAdd,15);
REG_HANDLER(BookObjEdit,16);
REG_HANDLER(BookObjRemove,17);
REG_HANDLER(BookBorrow,21); /// 图书借阅
REG_HANDLER(BookReturn,22); /// 图书归还
REG_HANDLER(BookTypeGet,30); /// 查询已存在的图书种类
REG_HANDLER(BookTypeAdd,31); /// 添加图书种类
REG_HANDLER(BookTypeEdit,32); /// 修改图书种类
REG_HANDLER(BookTypeRemove,33); /// 删除加图书种类
REG_HANDLER(BookAdd,41); /// 添加图书信息
REG_HANDLER(BookEdit,42); /// 修改图书信息
REG_HANDLER(BookRemove,43); /// 删除图书信息
}
int main()
{
InitHandlers();
Request req;
Session se(req);
Response res;
res.showOnDestroy(true);
json j;
default_jsonfail();
do
{
/// Must be post
if(req.requestMethod!="POST")
{
jsonfail(err_method_not_supported);
break;
}
postval(action);
int key_real=ParseInt(action);
int ret;
if((ret=RequestDispatch(req,se,res,j,key_real))>=0)
{
j["RD"]="success";
}
else
{
j["RD"]="fail";
}
j["RDCode"]=ret;
}while(0);
se.writeToResponse(res);
res.content.append(j.dump());
return 0;
}