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第01章 07 MySQL+VTK C++示例代码，实现医学影像数据的IO数据库存储

news 2025/7/20 16:49:33

要实现将医学影像数据（如DICOM文件或其他医学图像格式）存储到MySQL数据库中，并使用VTK进行数据读取和处理的C++示例代码，可以按照以下步骤进行。这个示例将展示如何将DICOM图像数据存储到MySQL数据库，然后使用VTK读取并显示这些数据。

1. 环境准备

确保你已经安装了以下工具和库：

MySQL数据库
MySQL Connector/C++（用于连接MySQL数据库）
VTK库（用于医学影像数据的读取和处理）
CMake（用于构建项目）

2. 创建MySQL数据库和表

首先，创建一个MySQL数据库和表来存储医学影像数据。假设我们要存储DICOM图像的二进制数据及其相关信息。

CREATE DATABASE MedicalImages;USE MedicalImages;CREATE TABLE DicomImages (ID INT AUTO_INCREMENT PRIMARY KEY,PatientName VARCHAR(255),StudyDate DATE,ImageData LONGBLOB
);

3. C++示例代码

以下是一个完整的C++示例代码，展示了如何将DICOM图像存储到MySQL数据库中，并使用VTK读取和显示这些图像。

#include <iostream>
#include <mysql_driver.h>
#include <mysql_connection.h>
#include <cppconn/statement.h>
#include <cppconn/prepared_statement.h>
#include <cppconn/exception.h>
#include <vtkDICOMImageReader.h>
#include <vtkImageViewer2.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSmartPointer.h>
#include <fstream>void StoreDicomInDatabase(const std::string& dicomFilePath, const std::string& patientName, const std::string& studyDate) {try {sql::mysql::MySQL_Driver* driver;sql::Connection* con;sql::PreparedStatement* pstmt;// Create a connectiondriver = sql::mysql::get_mysql_driver_instance();con = driver->connect("tcp://127.0.0.1:3306", "username", "password");// Connect to the databasecon->setSchema("MedicalImages");// Read the DICOM file into a binary blobstd::ifstream dicomFile(dicomFilePath, std::ios::binary);std::vector<char> buffer((std::istreambuf_iterator<char>(dicomFile)), std::istreambuf_iterator<char>());// Prepare the SQL statementpstmt = con->prepareStatement("INSERT INTO DicomImages (PatientName, StudyDate, ImageData) VALUES (?, ?, ?)");pstmt->setString(1, patientName);pstmt->setString(2, studyDate);pstmt->setBlob(3, new sql::SQLString(buffer.data(), buffer.size()));// Execute the querypstmt->executeUpdate();std::cout << "DICOM image stored successfully!" << std::endl;delete pstmt;delete con;} catch (sql::SQLException& e) {std::cerr << "MySQL Error: " << e.what() << std::endl;}
}void ReadDicomFromDatabaseAndDisplay() {try {sql::mysql::MySQL_Driver* driver;sql::Connection* con;sql::Statement* stmt;sql::ResultSet* res;// Create a connectiondriver = sql::mysql::get_mysql_driver_instance();con = driver->connect("tcp://127.0.0.1:3306", "username", "password");// Connect to the databasecon->setSchema("MedicalImages");// Retrieve the first DICOM image from the databasestmt = con->createStatement();res = stmt->executeQuery("SELECT ImageData FROM DicomImages LIMIT 1");if (res->next()) {// Get the blob datastd::istream* blobStream = res->getBlob(1);std::vector<char> buffer((std::istreambuf_iterator<char>(*blobStream)), std::istreambuf_iterator<char>());// Write the blob data to a temporary filestd::ofstream tempFile("temp.dcm", std::ios::binary);tempFile.write(buffer.data(), buffer.size());tempFile.close();// Use VTK to read the DICOM filevtkSmartPointer<vtkDICOMImageReader> reader = vtkSmartPointer<vtkDICOMImageReader>::New();reader->SetFileName("temp.dcm");reader->Update();// Visualize the imagevtkSmartPointer<vtkImageViewer2> imageViewer = vtkSmartPointer<vtkImageViewer2>::New();imageViewer->SetInputConnection(reader->GetOutputPort());vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New();imageViewer->SetupInteractor(renderWindowInteractor);imageViewer->Render();imageViewer->GetRenderer()->ResetCamera();imageViewer->Render();renderWindowInteractor->Start();} else {std::cout << "No DICOM image found in the database." << std::endl;}delete res;delete stmt;delete con;} catch (sql::SQLException& e) {std::cerr << "MySQL Error: " << e.what() << std::endl;}
}int main() {// Store a DICOM image in the databaseStoreDicomInDatabase("path/to/your/dicom/file.dcm", "John Doe", "2025-01-01");// Read and display the DICOM image from the databaseReadDicomFromDatabaseAndDisplay();return 0;
}

4. 代码解释

StoreDicomInDatabase: 这个函数将DICOM文件读取为二进制数据，并将其存储到MySQL数据库中。
ReadDicomFromDatabaseAndDisplay: 这个函数从数据库中读取DICOM图像的二进制数据，将其写入临时文件，然后使用VTK读取并显示图像。

5. 编译和运行

确保你已经安装了MySQL Connector和VTK库，并使用CMake来构建项目。CMakeLists.txt文件可以如下配置：

cmake_minimum_required(VERSION 3.10)
project(MySQLVTKExample)set(CMAKE_CXX_STANDARD 11)find_package(VTK REQUIRED)
find_package(MySQL REQUIRED)include(${VTK_USE_FILE})add_executable(MySQLVTKExample main.cpp)target_link_libraries(MySQLVTKExample ${VTK_LIBRARIES} ${MYSQL_LIBRARIES})