update tests for request&session, db

bserv/include/bserv/database.hpp

@@ -173,6 +173,15 @@ namespace bserv {
 		}
 	};
 
+	template <>
+	class db_value<std::nullptr_t> : public db_parameter {
+	public:
+		db_value(const std::nullptr_t&) {}
+		std::string get_value(raw_db_transaction_type&) {
+			return "null";
+		}
+	};
+
 	template <typename Type>
 	class db_value<std::optional<Type>> : public db_parameter {
 	private:
@@ -204,6 +213,68 @@ namespace bserv {
 		}
 	};
 
+	class unsupported_json_value_type : public std::exception {
+	public:
+		unsupported_json_value_type() = default;
+		const char* what() const { return "unsupported json value type"; }
+	};
+
+	template <>
+	class db_value<boost::json::value> : public db_parameter {
+	private:
+		boost::json::value value_;
+		boost::json::value copy_json_value(
+			const boost::json::value& value) const {
+			if (value.is_bool()) {
+				return value.as_bool();
+			}
+			else if (value.is_double()) {
+				return value.as_double();
+			}
+			else if (value.is_int64()) {
+				return value.as_int64();
+			}
+			else if (value.is_null()) {
+				return nullptr;
+			}
+			else if (value.is_string()) {
+				return value.as_string();
+			}
+			else if (value.is_uint64()) {
+				return value.as_uint64();
+			}
+			else {
+				throw unsupported_json_value_type{};
+			}
+		}
+	public:
+		db_value(const boost::json::value& value)
+			: value_{ copy_json_value(value) } {}
+		std::string get_value(raw_db_transaction_type& tx) {
+			if (value_.is_bool()) {
+				return db_value<bool>{value_.as_bool()}.get_value(tx);
+			}
+			else if (value_.is_double()) {
+				return db_value<double>{value_.as_double()}.get_value(tx);
+			}
+			else if (value_.is_int64()) {
+				return db_value<std::int64_t>{value_.as_int64()}.get_value(tx);
+			}
+			else if (value_.is_null()) {
+				return db_value<std::nullptr_t>{nullptr}.get_value(tx);
+			}
+			else if (value_.is_string()) {
+				return db_value<boost::json::string>{value_.as_string()}.get_value(tx);
+			}
+			else if (value_.is_uint64()) {
+				return db_value<std::uint64_t>{value_.as_uint64()}.get_value(tx);
+			}
+			else {
+				throw unsupported_json_value_type{};
+			}
+		}
+	};
+
 	namespace db_internal {
 
 		template <typename Param>
@@ -280,6 +351,9 @@ namespace bserv {
 				if (!row[field_idx].is_null()) {
 					obj[name_] = row[field_idx].as<Type>();
 				}
+				else {
+					obj[name_] = nullptr;
+				}
 			}
 		};
 
@@ -293,6 +367,9 @@ namespace bserv {
 				if (!row[field_idx].is_null()) {
 					obj[name_] = row[field_idx].c_str();
 				}
+				else {
+					obj[name_] = nullptr;
+				}
 			}
 		};
 

test/DBTest.cpp

@@ -0,0 +1,94 @@
+#include <iostream>
+#include <optional>
+#include <bserv/common.hpp>
+#include <boost/json.hpp>
+bserv::db_relation_to_object orm_test{
+	bserv::make_db_field<int>("id"),
+	bserv::make_db_field<std::string>("name"),
+	bserv::make_db_field<bool>("active"),
+	bserv::make_db_field<std::optional<std::string>>("email"),
+	bserv::make_db_field<std::optional<int>>("code")
+};
+boost::json::object add(
+	boost::json::object&& params,
+	std::shared_ptr<bserv::db_connection> conn) {
+	if (!params.contains("name")) {
+		return {
+			{"missing", "name"}
+		};
+	}
+	if (!params.contains("active")) params["active"] = true;
+	if (!params.contains("email")) params["email"] = nullptr;
+	if (!params.contains("code")) params["code"] = nullptr;
+	bserv::db_transaction tx{ conn };
+	bserv::db_result r = tx.exec(
+		"insert into db_test (name, active, email, code) values (?, ?, ?, ?);",
+		params["name"], params["active"], params["email"], params["code"]);
+	lgdebug << r.query();
+	tx.commit();
+	return {
+		{"successfully", "added"}
+	};
+}
+boost::json::object update(
+	const std::string& name,
+	boost::json::object&& params,
+	std::shared_ptr<bserv::db_connection> conn) {
+	if (!params.contains("name")) {
+		return {
+			{"missing", "name"}
+		};
+	}
+	if (!params.contains("active")) params["active"] = true;
+	if (!params.contains("email")) params["email"] = nullptr;
+	if (!params.contains("code")) params["code"] = nullptr;
+	bserv::db_transaction tx{ conn };
+	bserv::db_result r = tx.exec(
+		"update db_test set name = ?, active = ?, email = ?, code = ? where name = ?;",
+		params["name"], params["active"], params["email"], params["code"], name);
+	lgdebug << r.query();
+	tx.commit();
+	return {
+		{"successfully", "updated"}
+	};
+}
+boost::json::object find(
+	const std::string& name,
+	std::shared_ptr<bserv::db_connection> conn) {
+	bserv::db_transaction tx{ conn };
+	bserv::db_result r = tx.exec("select * from db_test where name = ?;", name);
+	lgdebug << r.query();
+	auto item = orm_test.convert_to_optional(r);
+	if (item) {
+		return {
+			{"item", item.value()}
+		};
+	}
+	else {
+		return {
+			{"not", "found"}
+		};
+	}
+}
+int main()
+{
+	std::string config_content = bserv::utils::file::read_bin("../config.json");
+	boost::json::object config_obj = boost::json::parse(config_content).as_object();
+	bserv::server_config config;
+	config.set_db_conn_str(config_obj["conn-str"].as_string().c_str());
+	bserv::server{
+		config,
+		{
+			bserv::make_path("/add", &add,
+				bserv::placeholders::json_params,
+				bserv::placeholders::db_connection_ptr),
+			bserv::make_path("/update/<str>", &update,
+				bserv::placeholders::_1,
+				bserv::placeholders::json_params,
+				bserv::placeholders::db_connection_ptr),
+			bserv::make_path("/find/<str>", &find,
+				bserv::placeholders::_1,
+				bserv::placeholders::db_connection_ptr)
+		}
+	};
+}

test/DBTest.py

@@ -0,0 +1,90 @@
+import uuid
+import string
+import random
+import requests
+from multiprocessing import Process
+from time import time
+from pprint import pprint
+
+char_string = string.ascii_letters + string.digits
+
+def get_string(n):
+    return ''.join(random.choice(char_string) for _ in range(n))
+
+def get_bool():
+    if random.randint(0, 1) == 0:
+        return False
+    else:  # r == 1
+        return True
+
+def get_null_email():
+    if random.randint(0, 1) == 0:
+        return None
+    else:
+        return get_string(5) + "@" + get_string(5) + ".com"
+
+def get_null_code():
+    if random.randint(0, 1) == 0:
+        return None
+    else:
+        return random.randint(0, 7)
+
+def create_item():
+    return {
+        "name": str(uuid.uuid4()),
+        "active": get_bool(),
+        "email": get_null_email(),
+        "code": get_null_code()
+    }
+
+def update_item(item):
+    if random.randint(0, 1) == 0:
+        item["name"] = str(uuid.uuid4())
+    if random.randint(0, 1) == 0:
+        item["active"] = get_bool()
+    if random.randint(0, 1) == 0:
+        item["email"] = get_null_email()
+    if random.randint(0, 1) == 0:
+        item["code"] = get_null_code()
+
+P = 200  # number of concurrent processes
+N = 20  # number of posts
+
+def test():
+    session = requests.session()
+    item = create_item()
+    if {"successfully": "added"} \
+            != session.post("http://localhost:8080/add", json=item).json():
+        print('test failed')
+    res = session.get(f"http://localhost:8080/find/{item['name']}").json()
+    item["id"] = res["item"]["id"]
+    if res != {"item": item}:
+        print('test failed')
+    for _ in range(N):
+        old_name = item['name']
+        update_item(item)
+        if {"successfully": "updated"} \
+                != session.post(f"http://localhost:8080/update/{old_name}", json=item).json():
+            print('test failed')
+        if {"item": item} \
+                != session.get(f"http://localhost:8080/find/{item['name']}").json():
+            print('test failed')
+
+
+if __name__ == '__main__':
+    processes = [Process(target=test) for _ in range(P)]
+
+    print('starting')
+
+    start = time()
+
+    for p in processes:
+        p.start()
+
+    for p in processes:
+        p.join()
+
+    end = time()
+
+    print('test ended')
+    print('elapsed: ', end - start)

test/DBTest.sql

@@ -0,0 +1,8 @@
+DROP TABLE IF EXISTS db_test;
+CREATE TABLE db_test (
+	id serial PRIMARY KEY,
+	name character varying(255) NOT NULL UNIQUE,
+	active boolean NOT NULL,
+	email character varying(255),
+	code int
+);

test/DBTest.vcxproj

@@ -0,0 +1,148 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{7c95e12b-d7aa-4329-86aa-9fe3d8b2a5f2}</ProjectGuid>
+    <RootNamespace>DBTest</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
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+    <ConfigurationType>Application</ConfigurationType>
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+    <PlatformToolset>v142</PlatformToolset>
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+    <CharacterSet>Unicode</CharacterSet>
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+    <ConfigurationType>Application</ConfigurationType>
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+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
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+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
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+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="DBTest.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/DBTest.vcxproj.filters

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DBTest.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

test/DBTest.vcxproj.user

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>

test/RequestSessionTest.cpp

@@ -0,0 +1,55 @@
+#include <iostream>
+#include <bserv/common.hpp>
+#include <boost/json.hpp>
+boost::json::object hello() {
+	return {
+		{"hello", "world"}
+	};
+}
+boost::json::object echo(
+	boost::json::object&& params,
+	std::shared_ptr<bserv::session_type> session_ptr) {
+	bserv::session_type& session = *session_ptr;
+	if (!session.count("count")) session["count"] = 0;
+	session["count"] = session["count"].as_int64() + 1;
+	return {
+		{"id", "echo"},
+		{"obj", params}
+	};
+}
+boost::json::object echo2(
+	const std::string& id) {
+	return {
+		{"id", "echo2"},
+		{"str", id}
+	};
+}
+boost::json::object get(
+	std::shared_ptr<bserv::session_type> session_ptr) {
+	bserv::session_type& session = *session_ptr;
+	if (session.count("count"))
+		return {
+			{"id", "get"},
+			{"val", session["count"]}
+		};
+	return {
+		{"id", "get"},
+		{"val", 0}
+	};
+}
+int main()
+{
+	bserv::server{
+		bserv::server_config{},
+		{
+			bserv::make_path("/hello", &hello),
+			bserv::make_path("/echo", &echo,
+				bserv::placeholders::json_params,
+				bserv::placeholders::session),
+			bserv::make_path("/echo/<str>", &echo2,
+				bserv::placeholders::_1),
+			bserv::make_path("/get", &get,
+				bserv::placeholders::session)
+		}
+	};
+}

test/RequestSessionTest.py

@@ -0,0 +1,66 @@
+import uuid
+import requests
+import random
+from multiprocessing import Process
+from time import time
+from pprint import pprint
+
+def size_test():
+    session = requests.session()
+    length = 4 * 1024 * 1024  # ~4MB
+    data = {"id": "a" * length}
+    res = session.post("http://localhost:8080/echo", json=data).json()
+    if {"id": "echo", "obj": data} != res:
+        print("size test: failed")
+    else:
+        print("size test: ok")
+    print()
+
+P = 200  # number of concurrent processes
+N = 20  # for each process, the number of posts
+
+def test():
+    session = requests.session()
+    if {"hello": "world"} \
+            != session.get("http://localhost:8080/hello").json():
+        print('test failed!')
+    if {"id": "get", "val": 0} \
+            != session.get("http://localhost:8080/get").json():
+        print('test failed!')
+    cnt = 0
+    for _ in range(N):
+        session_id = str(uuid.uuid4())
+        if random.randint(0, 1) == 0:
+            if {"id": "echo2", "str": session_id} \
+                    != session.get(f"http://localhost:8080/echo/{session_id}").json():
+                print('test failed!')
+        else:
+            data = {"id": session_id}
+            if {"id": "echo", "obj": data} \
+                    != session.post("http://localhost:8080/echo", json=data).json():
+                print('test failed!')
+            cnt += 1
+        if {"id": "get", "val": cnt} \
+                != session.get("http://localhost:8080/get").json():
+            print('test failed!')
+
+
+if __name__ == '__main__':
+    size_test()
+
+    processes = [Process(target=test) for _ in range(P)]
+
+    print('starting')
+
+    start = time()
+
+    for p in processes:
+        p.start()
+
+    for p in processes:
+        p.join()
+
+    end = time()
+
+    print('test ended')
+    print('elapsed: ', end - start)

test/RequestSessionTest.vcxproj

@@ -0,0 +1,148 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{5b8cbaca-b951-4804-aed5-f3f1a4fa9e1b}</ProjectGuid>
+    <RootNamespace>RequestSessionTest</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
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+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <PropertyGroup Label="UserMacros" />
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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test/RequestSessionTest.vcxproj.filters

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
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+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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+    <Filter Include="头文件">
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+</Project>

test/RequestSessionTest.vcxproj.user

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>

test/Test.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
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+VisualStudioVersion = 16.0.31911.196
+MinimumVisualStudioVersion = 10.0.40219.1
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+	ProjectSection(ProjectDependencies) = postProject
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296} = {F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bserv", "..\bserv\bserv.vcxproj", "{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "DBTest", "DBTest.vcxproj", "{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}"
+	ProjectSection(ProjectDependencies) = postProject
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296} = {F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Debug|x64.ActiveCfg = Debug|x64
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Debug|x64.Build.0 = Debug|x64
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Debug|x86.ActiveCfg = Debug|Win32
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Debug|x86.Build.0 = Debug|Win32
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Release|x64.ActiveCfg = Release|x64
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Release|x64.Build.0 = Release|x64
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Release|x86.ActiveCfg = Release|Win32
+		{5B8CBACA-B951-4804-AED5-F3F1A4FA9E1B}.Release|x86.Build.0 = Release|Win32
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Debug|x64.ActiveCfg = Debug|x64
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Debug|x64.Build.0 = Debug|x64
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Debug|x86.ActiveCfg = Debug|Win32
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Debug|x86.Build.0 = Debug|Win32
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Release|x64.ActiveCfg = Release|x64
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Release|x64.Build.0 = Release|x64
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Release|x86.ActiveCfg = Release|Win32
+		{F5C0CF6D-7BF9-40A5-AF2E-8FC36A1D7296}.Release|x86.Build.0 = Release|Win32
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Debug|x64.ActiveCfg = Debug|x64
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Debug|x64.Build.0 = Debug|x64
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Debug|x86.ActiveCfg = Debug|Win32
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Debug|x86.Build.0 = Debug|Win32
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Release|x64.ActiveCfg = Release|x64
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Release|x64.Build.0 = Release|x64
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Release|x86.ActiveCfg = Release|Win32
+		{7C95E12B-D7AA-4329-86AA-9FE3D8B2A5F2}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B400CC30-B6D6-404C-9A92-BD75FA0E9A9F}
+	EndGlobalSection
+EndGlobal