Gemini Pro在Web开发中的应用实战

最近深入使用Gemini Pro进行Web开发，发现它在前端框架、API设计和性能优化方面有着独特优势，特别是在处理复杂业务逻辑时表现出色…

介绍

  Google的Gemini Pro模型以其多模态能力、强大的上下文理解以及对代码的深度支持，正在Web开发领域展现巨大潜力。与其他AI编程助手相比，Gemini Pro不仅能够理解和生成代码，还能处理复杂的业务逻辑、架构设计，甚至协助进行性能优化和安全审计。本文将深入探讨Gemini Pro在实际Web开发中的应用实战。

Gemini Pro核心能力

代码理解与生成

// Gemini Pro代码生成示例
class GeminiProWebAssistant {
  constructor(apiKey) {
    this.apiKey = apiKey;
    this.baseURL = 'https://generativelanguage.googleapis.com/v1beta/models';
  }

  async generateCode(prompt, language = 'javascript') {
    const response = await fetch(`${this.baseURL}/gemini-pro:generateContent?key=${this.apiKey}`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        contents: [{
          parts: [{
            text: `Generate ${language} code for: ${prompt}`
          }]
        }],
        generationConfig: {
          temperature: 0.1,
          maxOutputTokens: 2048,
          topP: 0.8,
          topK: 40
        }
      })
    });

    const data = await response.json();
    return data.candidates?.[0]?.content?.parts?.[0]?.text || '';
  }

  async explainCode(code) {
    const prompt = `Explain the following code in detail:\n\n${code}`;
    return await this.generateCode(prompt);
  }

  async debugCode(code, error) {
    const prompt = `Debug the following code and fix the error:\n\nCode:\n${code}\n\nError:\n${error}`;
    return await this.generateCode(prompt);
  }

  async optimizeCode(code, requirements = []) {
    const requirementsText = requirements.length > 0 ?
      `\nOptimize for: ${requirements.join(', ')}` : '';

    const prompt = `Optimize the following code for performance and readability:\n\n${code}${requirementsText}`;
    return await this.generateCode(prompt);
  }
}

// React组件生成示例
async function generateReactComponent(componentName, props, features = []) {
  const gemini = new GeminiProWebAssistant('YOUR_API_KEY');

  const featuresText = features.length > 0 ?
    `, including: ${features.join(', ')}` : '';

  const prompt = `Generate a React functional component named ${componentName} with props: ${JSON.stringify(props)}${featuresText}. Include proper TypeScript types, error handling, and loading states.`;

  const componentCode = await gemini.generateCode(prompt, 'typescript');
  return componentCode;
}

// 使用示例
const userCardComponent = await generateReactComponent(
  'UserCard',
  {
    user: { id: 'string', name: 'string', email: 'string', avatar: 'string' },
    onClick: 'function'
  },
  ['hover effects', 'loading skeleton', 'error boundary']
);

API设计与文档生成

// Gemini Pro辅助API设计
class APIDesigner {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
  }

  async designRESTAPI(domain, requirements) {
    const prompt = `
Design a REST API for ${domain} with the following requirements:
${requirements.join('\n- ')}

Include:
1. Resource endpoints
2. HTTP methods
3. Request/response schemas
4. Authentication methods
5. Error handling
6. Rate limiting considerations
    `;

    const apiSpec = await this.gemini.generateCode(prompt);
    return this.parseAPISpec(apiSpec);
  }

  async generateAPIDocumentation(apiSpec) {
    const prompt = `
Generate comprehensive API documentation for the following specification:

${JSON.stringify(apiSpec, null, 2)}

Include:
- Endpoint descriptions
- Request parameters
- Response schemas
- Example requests/responses
- Error codes
- Authentication instructions
    `;

    return await this.gemini.generateCode(prompt);
  }

  parseAPISpec(specText) {
    // 简化的API规范解析
    const endpoints = [];
    const lines = specText.split('\n');

    for (let i = 0; i < lines.length; i++) {
      const line = lines[i].trim();

      if (line.includes('GET') || line.includes('POST') ||
          line.includes('PUT') || line.includes('DELETE')) {

        const [method, path] = line.split(' ');
        const description = lines[i + 1]?.trim() || 'No description';

        endpoints.push({
          method: method.trim(),
          path: path.trim(),
          description: description,
          parameters: [],
          responses: []
        });
      }
    }

    return { endpoints };
  }

  async generateAPIImplementation(apiSpec, framework = 'express') {
    const prompt = `
Generate ${framework} API implementation for the following specification:

${JSON.stringify(apiSpec, null, 2)}

Include:
- Route definitions
- Input validation
- Error handling
- Middleware integration
- Response formatting
    `;

    return await this.gemini.generateCode(prompt, framework);
  }
}

// 使用示例
const apiDesigner = new APIDesigner(new GeminiProWebAssistant('KEY'));

const todoAPI = await apiDesigner.designRESTAPI('todo application', [
  'user authentication',
  'CRUD operations',
  'pagination',
  'search functionality'
]);

const apiDoc = await apiDesigner.generateAPIDocumentation(todoAPI);
const apiImpl = await apiDesigner.generateAPIImplementation(todoAPI, 'express');

数据库设计辅助

// Gemini Pro数据库设计助手
class DatabaseDesigner {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
  }

  async designDatabaseSchema(domain, requirements) {
    const prompt = `
Design a database schema for ${domain} with requirements:
${requirements.join('\n- ')}

Include:
1. Tables with fields
2. Primary and foreign keys
3. Indexes for performance
4. Relationships between tables
5. Constraints and validations
6. Sample data
    `;

    const schema = await this.gemini.generateCode(prompt);
    return this.parseSchema(schema);
  }

  async generateORMModels(schema, framework = 'sequelize') {
    const prompt = `
Generate ${framework} ORM models for the following database schema:

${JSON.stringify(schema, null, 2)}

Include:
- Model definitions
- Associations
- Validations
- Scopes
- Instance/class methods
    `;

    return await this.gemini.generateCode(prompt, framework);
  }

  async generateMigrations(schema, framework = 'sequelize') {
    const prompt = `
Generate ${framework} migration files for the following database schema:

${JSON.stringify(schema, null, 2)}

Include:
- Table creation migrations
- Index creation
- Foreign key constraints
- Initial seed data
    `;

    return await this.gemini.generateCode(prompt, framework);
  }

  parseSchema(schemaText) {
    // 简化的schema解析
    const tables = [];
    const lines = schemaText.split('\n');
    let currentTable = null;

    for (const line of lines) {
      const trimmedLine = line.trim();

      if (trimmedLine.toLowerCase().startsWith('table ')) {
        currentTable = {
          name: trimmedLine.split(' ')[1],
          columns: [],
          indexes: [],
          constraints: []
        };
        tables.push(currentTable);
      } else if (currentTable && trimmedLine && !trimmedLine.startsWith('Index:') && !trimmedLine.startsWith('Constraint:')) {
        if (trimmedLine.includes('INT PRIMARY KEY') ||
            trimmedLine.includes('VARCHAR') ||
            trimmedLine.includes('TEXT') ||
            trimmedLine.includes('TIMESTAMP')) {
          const columnMatch = trimmedLine.match(/(\w+)\s+(.*)/);
          if (columnMatch) {
            currentTable.columns.push({
              name: columnMatch[1],
              definition: columnMatch[2]
            });
          }
        }
      }
    }

    return { tables };
  }
}

// 使用示例
const dbDesigner = new DatabaseDesigner(new GeminiProWebAssistant('KEY'));

const ecommerceSchema = await dbDesigner.designDatabaseSchema('e-commerce platform', [
  'user management',
  'product catalog',
  'shopping cart',
  'order processing',
  'payment integration',
  'inventory management'
]);

const models = await dbDesigner.generateORMModels(ecommerceSchema);
const migrations = await dbDesigner.generateMigrations(ecommerceSchema);

Web开发实战场景

前端状态管理

// Gemini Pro辅助状态管理设计
class StateManagementDesigner {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
  }

  async designZustandStore(domain, features) {
    const prompt = `
Design a Zustand store for ${domain} with features: ${features.join(', ')}

Include:
1. State structure
2. Actions (mutations)
3. Selectors (computed values)
4. Middlewares (persist, devtools)
5. Type definitions
6. Usage examples
    `;

    const storeCode = await this.gemini.generateCode(prompt, 'typescript');
    return storeCode;
  }

  async designReduxToolkit(domain, features) {
    const prompt = `
Design Redux Toolkit slice for ${domain} with features: ${features.join(', ')}

Include:
1. Initial state
2. Action creators
3. Reducer with cases
4. Selectors
5. Async thunks (if needed)
6. Type definitions
    `;

    const sliceCode = await this.gemini.generateCode(prompt, 'typescript');
    return sliceCode;
  }

  async compareStateLibraries(features) {
    const prompt = `
Compare the following state management libraries for features: ${features.join(', ')}
Libraries: Zustand, Redux Toolkit, Jotai, Recoil, Valtio

Pros and cons for each library, and recommend the best choice for different scenarios.
    `;

    return await this.gemini.generateCode(prompt);
  }
}

// 使用示例
const stateDesigner = new StateManagementDesigner(new GeminiProWebAssistant('KEY'));

const userStore = await stateDesigner.designZustandStore('user management', [
  'authentication',
  'profile updates',
  'preferences',
  'permissions'
]);

const comparison = await stateDesigner.compareStateLibraries([
  'complex state',
  'server synchronization',
  'performance',
  'ease of use'
]);

性能优化建议

// Gemini Pro性能优化助手
class PerformanceOptimizer {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
  }

  async analyzePerformanceCode(code) {
    const prompt = `
Analyze the following code for performance issues:

${code}

Identify:
1. Bottlenecks
2. Memory leaks
3. Inefficient algorithms
4. Rendering optimizations
5. Bundle size issues
6. Specific recommendations
    `;

    return await this.gemini.generateCode(prompt);
  }

  async suggestWebpackOptimizations(projectConfig) {
    const prompt = `
Based on this project configuration, suggest Webpack optimizations:

${JSON.stringify(projectConfig, null, 2)}

Focus on:
- Code splitting
- Tree shaking
- Bundle size reduction
- Loading performance
- Caching strategies
- Lazy loading
    `;

    return await this.gemini.generateCode(prompt);
  }

  async optimizeReactComponent(componentCode) {
    const prompt = `
Optimize this React component for performance:

${componentCode}

Apply:
- React.memo for components
- useCallback for callbacks
- useMemo for expensive calculations
- Proper state management
- Efficient rendering patterns
- Code splitting opportunities
    `;

    return await this.gemini.generateCode(prompt);
  }

  async generatePerformanceMonitoring(componentCode) {
    const prompt = `
Generate performance monitoring code for this component:

${componentCode}

Include:
- Render timing
- Prop changes tracking
- Memory usage
- Network requests
- Bundle size analysis
    `;

    return await this.gemini.generateCode(prompt);
  }
}

// 性能监控Hooks
const usePerformanceMonitor = (componentName) => {
  const startTime = useRef(performance.now());
  const [renderTime, setRenderTime] = useState(0);

  useEffect(() => {
    const endTime = performance.now();
    const totalTime = endTime - startTime.current;
    setRenderTime(totalTime);

    // 发送到性能监控服务
    if (totalTime > 16) { // 超过一帧的时间
      console.warn(`${componentName} render time: ${totalTime}ms`);
    }

    startTime.current = performance.now();
  });

  return { renderTime };
};

// 组件懒加载优化
const LazyComponent = lazy(() => import('./HeavyComponent'));

const OptimizedLazyWrapper = ({ componentProps }) => {
  return (
    <Suspense fallback={<div className="loading-skeleton">Loading...</div>}>
      <LazyComponent {...componentProps} />
    </Suspense>
  );
};

安全性增强

// Gemini Pro安全审计助手
class SecurityAuditor {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
  }

  async auditCodeForSecurity(code) {
    const prompt = `
Perform a security audit on the following code:

${code}

Check for:
1. Injection vulnerabilities (SQL, XSS, Command)
2. Authentication/authorization issues
3. Input validation problems
4. Session management flaws
5. Cryptographic weaknesses
6. Data exposure risks
7. API security issues
8. Specific remediation steps
    `;

    return await this.gemini.generateCode(prompt);
  }

  async generateSecureInputValidation(validations) {
    const prompt = `
Generate secure input validation functions for these requirements:

${JSON.stringify(validations, null, 2)}

Include:
- Sanitization
- Validation rules
- Error handling
- Whitelist approach
- Rate limiting
    `;

    return await this.gemini.generateCode(prompt, 'javascript');
  }

  async suggestAuthenticationPatterns(authRequirements) {
    const prompt = `
Suggest authentication patterns for requirements: ${authRequirements.join(', ')}

Consider:
- JWT vs Sessions
- OAuth providers
- Multi-factor authentication
- Password policies
- Token management
- Secure storage
    `;

    return await this.gemini.generateCode(prompt);
  }
}

// 安全的API客户端
class SecureAPIClient {
  constructor(baseURL, options = {}) {
    this.baseURL = baseURL;
    this.options = {
      timeout: options.timeout || 10000,
      retryAttempts: options.retryAttempts || 3,
      validateSSL: options.validateSSL !== false,
      ...options
    };
  }

  async request(endpoint, config = {}) {
    // 请求配置验证
    this.validateRequestConfig(config);

    const url = `${this.baseURL}${endpoint}`;

    // 输入验证和清理
    const sanitizedConfig = this.sanitizeConfig(config);

    try {
      const response = await fetch(url, {
        ...sanitizedConfig,
        headers: {
          ...this.getDefaultHeaders(),
          ...config.headers
        }
      });

      // 响应验证
      await this.validateResponse(response);

      return await response.json();
    } catch (error) {
      // 错误处理
      return this.handleError(error);
    }
  }

  validateRequestConfig(config) {
    // 验证请求配置
    if (config.method && !['GET', 'POST', 'PUT', 'DELETE', 'PATCH'].includes(config.method)) {
      throw new Error('Invalid HTTP method');
    }

    if (config.body && typeof config.body !== 'string' && typeof config.body !== 'object') {
      throw new Error('Invalid request body type');
    }
  }

  sanitizeConfig(config) {
    // 清理配置
    const sanitized = { ...config };

    // 移除潜在危险的headers
    if (sanitized.headers) {
      const dangerousHeaders = ['origin', 'referer', 'x-forwarded-for'];
      dangerousHeaders.forEach(header => {
        delete sanitized.headers[header];
      });
    }

    // 验证URL
    if (config.url) {
      if (!config.url.startsWith(this.baseURL)) {
        throw new Error('Invalid URL origin');
      }
    }

    return sanitized;
  }

  getDefaultHeaders() {
    return {
      'Content-Type': 'application/json',
      'Accept': 'application/json'
    };
  }

  async validateResponse(response) {
    if (!response.ok) {
      throw new Error(`HTTP ${response.status}: ${response.statusText}`);
    }

    // 检查响应内容类型
    const contentType = response.headers.get('content-type');
    if (!contentType || !contentType.includes('application/json')) {
      throw new Error('Invalid response content type');
    }
  }

  handleError(error) {
    console.error('API request error:', error);

    // 不泄露敏感错误信息
    if (error.message.includes('401') || error.message.includes('403')) {
      // 处理认证错误
      this.handleAuthError();
    }

    throw new Error('Request failed');
  }

  handleAuthError() {
    // 处理认证错误
    localStorage.removeItem('authToken');
    window.location.href = '/login';
  }
}

实际项目集成

智能代码审查系统

// Gemini Pro驱动的代码审查系统
class GeminiCodeReviewer {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
    this.reviewTemplates = this.loadReviewTemplates();
  }

  async reviewPullRequest(diff, projectContext) {
    const review = {
      summary: '',
      issues: [],
      suggestions: [],
      security: [],
      performance: [],
      style: []
    };

    // 1. 整体代码质量审查
    review.summary = await this.generateSummary(diff);

    // 2. 问题检测
    review.issues = await this.detectIssues(diff);

    // 3. 安全问题检查
    review.security = await this.checkSecurity(diff);

    // 4. 性能问题分析
    review.performance = await this.analyzePerformance(diff);

    // 5. 代码风格建议
    review.style = await this.checkStyle(diff);

    return review;
  }

  async generateSummary(diff) {
    const prompt = `
Provide a code review summary for this pull request:

Changes:
${diff}

Summarize:
- Main changes made
- Potential impact areas
- Overall quality assessment
- Priority issues to address
    `;

    return await this.gemini.generateCode(prompt);
  }

  async detectIssues(diff) {
    const prompt = `
Analyze this code diff for issues:

${diff}

Identify:
- Logic errors
- Edge cases missed
- Code smells
- Maintainability issues
- Best practice violations
    `;

    const analysis = await this.gemini.generateCode(prompt);
    return this.parseIssues(analysis);
  }

  async checkSecurity(diff) {
    const securityChecks = [
      'SQL injection possibilities',
      'XSS vulnerabilities',
      'Authentication bypass',
      'Data exposure',
      'Insecure storage',
      'Input validation issues'
    ];

    const securityIssues = [];

    for (const check of securityChecks) {
      const prompt = `
Check for ${check} in this code:

${diff}
      `;

      const result = await this.gemini.generateCode(prompt);
      if (!result.toLowerCase().includes('none found') && result.trim() !== '') {
        securityIssues.push({
          type: check,
          description: result,
          severity: this.assessSecuritySeverity(check)
        });
      }
    }

    return securityIssues;
  }

  assessSecuritySeverity(type) {
    const highRisk = ['SQL injection', 'XSS vulnerabilities', 'Authentication bypass'];
    const mediumRisk = ['Data exposure', 'Input validation'];
    const lowRisk = ['Insecure storage'];

    if (highRisk.some(risk => type.includes(risk))) return 'high';
    if (mediumRisk.some(risk => type.includes(risk))) return 'medium';
    if (lowRisk.some(risk => type.includes(risk))) return 'low';

    return 'medium';
  }

  async analyzePerformance(diff) {
    const prompt = `
Analyze this code for performance issues:

${diff}

Look for:
- Algorithmic inefficiencies
- Memory leaks
- Unnecessary computations
- Poor rendering optimization
- Network requests
- Bundle size impacts
    `;

    const analysis = await this.gemini.generateCode(prompt);
    return this.parsePerformanceIssues(analysis);
  }

  async checkStyle(diff) {
    const prompt = `
Review this code for style and best practices:

${diff}

Consider:
- Naming conventions
- Code organization
- Comment quality
- Import organization
- Function complexity
- Code duplication
    `;

    const analysis = await this.gemini.generateCode(prompt);
    return this.parseStyleIssues(analysis);
  }

  parseIssues(analysis) {
    // 简化的分析解析
    const issues = [];
    const lines = analysis.split('\n');

    for (const line of lines) {
      if (line.includes(':') && (line.includes('Error') || line.includes('Issue'))) {
        issues.push({
          description: line.trim(),
          severity: 'medium'
        });
      }
    }

    return issues;
  }

  parsePerformanceIssues(analysis) {
    const issues = [];
    const performanceKeywords = ['slow', 'inefficient', 'memory', 'render', 'request', 'bundle'];

    performanceKeywords.forEach(keyword => {
      if (analysis.toLowerCase().includes(keyword)) {
        issues.push({
          type: keyword,
          description: `Potential ${keyword} related issue detected`,
          recommendation: 'Investigate and optimize'
        });
      }
    });

    return issues;
  }

  parseStyleIssues(analysis) {
    const issues = [];
    const styleKeywords = ['naming', 'organization', 'comment', 'complexity', 'duplicate'];

    styleKeywords.forEach(keyword => {
      if (analysis.toLowerCase().includes(keyword)) {
        issues.push({
          type: keyword,
          description: `Style issue related to ${keyword}`,
          recommendation: 'Follow team guidelines'
        });
      }
    });

    return issues;
  }

  async generatePRComment(review) {
    const template = `
## AI-Powered Code Review 🤖

### Summary
${review.summary}

### 🔍 Issues Found (${review.issues.length})
${review.issues.map(issue => `- ${issue.description}`).join('\n')}

### 🔒 Security Concerns (${review.security.length})
${review.security.map(issue => `- **${issue.severity.toUpperCase()}**: ${issue.type} - ${issue.description.substring(0, 100)}...`).join('\n')}

### ⚡ Performance Considerations (${review.performance.length})
${review.performance.map(issue => `- ${issue.type}: ${issue.description.substring(0, 100)}...`).join('\n')}

### 🎨 Style Suggestions (${review.style.length})
${review.style.map(issue => `- ${issue.type}: ${issue.description.substring(0, 100)}...`).join('\n')}

---

> This review was generated by Gemini Pro AI assistant. Please combine with human judgment for final decisions.
    `;

    return template;
  }
}

// CI/CD集成
class CIGeminiIntegration {
  constructor(codeReviewer) {
    this.reviewer = codeReviewer;
  }

  async runReviewOnPush(gitDiff, commitInfo) {
    console.log('🔍 Running Gemini Pro code analysis...');

    try {
      const review = await this.reviewer.reviewPullRequest(gitDiff, {
        commitMessage: commitInfo.message,
        author: commitInfo.author,
        filesChanged: commitInfo.files
      });

      // 输出审查结果
      this.outputReview(review);

      // 检查是否有严重问题
      const hasCriticalIssues = this.hasCriticalIssues(review);

      if (hasCriticalIssues) {
        console.error('❌ Critical issues found, blocking merge');
        process.exit(1); // 阻止CI/CD流程
      }

      console.log('✅ Code review passed');
      return review;

    } catch (error) {
      console.error('❌ Code review failed:', error);
      throw error;
    }
  }

  hasCriticalIssues(review) {
    return review.security.some(issue => issue.severity === 'high') ||
           review.issues.length > 10; // 假设超过10个问题为严重
  }

  outputReview(review) {
    console.log('\n📊 Gemini Pro Code Review Results:');
    console.log(`Summary: ${review.summary.substring(0, 100)}...`);
    console.log(`Issues: ${review.issues.length}`);
    console.log(`Security: ${review.security.length}`);
    console.log(`Performance: ${review.performance.length}`);
    console.log(`Style: ${review.style.length}\n`);
  }
}

项目脚手架生成

// Gemini Pro驱动的项目脚手架生成器
class GeminiProjectGenerator {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
  }

  async generateProjectSetup(projectRequirements) {
    const setup = {
      packageJson: {},
      folderStructure: [],
      configurationFiles: {},
      scripts: {},
      dependencies: []
    };

    // 1. 生成package.json
    setup.packageJson = await this.generatePackageJson(projectRequirements);

    // 2. 设计文件夹结构
    setup.folderStructure = await this.generateFolderStructure(projectRequirements);

    // 3. 生成配置文件
    setup.configurationFiles = await this.generateConfigurationFiles(projectRequirements);

    // 4. 生成构建脚本
    setup.scripts = await this.generateScripts(projectRequirements);

    // 5. 确定依赖项
    setup.dependencies = await this.determineDependencies(projectRequirements);

    return setup;
  }

  async generatePackageJson(requirements) {
    const prompt = `
Generate a package.json for a project with these requirements:

${JSON.stringify(requirements, null, 2)}

Include:
- Project name and description
- Dependencies based on requirements
- Scripts for development/build/deployment
- Keywords and author info
- License and repository
    `;

    const jsonStr = await this.gemini.generateCode(prompt);

    try {
      return JSON.parse(jsonStr);
    } catch {
      // 如果Gemini返回了带有代码块的文本，尝试提取JSON
      const jsonMatch = jsonStr.match(/```json\n([\s\S]*?)\n```/);
      if (jsonMatch) {
        return JSON.parse(jsonMatch[1]);
      }
      throw new Error('Could not parse package.json');
    }
  }

  async generateFolderStructure(requirements) {
    const prompt = `
Generate a folder structure for a project with these requirements:

${JSON.stringify(requirements, null, 2)}

Return as a tree-like structure showing the recommended directory organization.
    `;

    const structure = await this.gemini.generateCode(prompt);

    // 简化的树形结构解析
    const lines = structure.split('\n');
    const folders = [];

    for (const line of lines) {
      const trimmedLine = line.trim();
      if (trimmedLine.endsWith('/') || trimmedLine.endsWith('\\')) {
        folders.push(trimmedLine.replace(/[\/\\]+$/, ''));
      }
    }

    return folders;
  }

  async generateConfigurationFiles(requirements) {
    const configs = {};

    // 根据需求生成相应的配置文件
    if (requirements.framework === 'react') {
      configs['.eslintrc.js'] = await this.generateESLintConfig(requirements);
      configs['.prettierrc'] = await this.generatePrettierConfig(requirements);
    }

    if (requirements.typescript) {
      configs['tsconfig.json'] = await this.generateTSConfig(requirements);
    }

    if (requirements.testing) {
      configs['jest.config.js'] = await this.generateJestConfig(requirements);
    }

    if (requirements.build === 'vite') {
      configs['vite.config.js'] = await this.generateViteConfig(requirements);
    }

    return configs;
  }

  async generateESLintConfig(requirements) {
    const features = [];
    if (requirements.react) features.push('react');
    if (requirements.typescript) features.push('typescript');
    if (requirements.testing) features.push('testing-library');

    const prompt = `
Generate an ESLint configuration for a project with features: ${features.join(', ')}

Include appropriate plugins, extends, and rules for modern development practices.
    `;

    return await this.gemini.generateCode(prompt);
  }

  async generateTSConfig(requirements) {
    const prompt = `
Generate a TypeScript configuration (tsconfig.json) for a project with requirements:

${JSON.stringify(requirements, null, 2)}

Consider the target framework, build system, and deployment environment.
    `;

    const config = await this.gemini.generateCode(prompt);
    return JSON.parse(config);
  }

  async generateScripts(requirements) {
    const scripts = {
      dev: 'Development server command',
      build: 'Build command',
      test: 'Test command',
      lint: 'Linting command',
      format: 'Formatting command'
    };

    const prompt = `
Generate npm scripts for a project with these requirements:

${JSON.stringify(requirements, null, 2)}

Provide the actual command strings for each script type.
    `;

    const scriptCommands = await this.gemini.generateCode(prompt);

    // 简化的命令解析
    const commandMap = {
      dev: scriptCommands.includes('dev') ? scriptCommands.match(/dev.*?npm run ([^\n\r]+)/)?.[1] || 'vite' : 'vite',
      build: scriptCommands.includes('build') ? scriptCommands.match(/build.*?npm run ([^\n\r]+)/)?.[1] || 'vite build' : 'vite build',
      test: 'vitest',
      lint: 'eslint . --ext .js,.jsx,.ts,.tsx',
      format: 'prettier --write .'
    };

    return commandMap;
  }

  async determineDependencies(requirements) {
    const prompt = `
Determine npm dependencies for a project with these requirements:

${JSON.stringify(requirements, null, 2)}

Separate into:
- dependencies (production)
- devDependencies (development)
    `;

    const dependencies = await this.gemini.generateCode(prompt);

    return {
      dependencies: [],
      devDependencies: []
    };
  }

  async generateREADME(projectInfo) {
    const prompt = `
Generate a comprehensive README.md for this project:

${JSON.stringify(projectInfo, null, 2)}

Include sections for installation, usage, features, contributing, and license.
    `;

    return await this.gemini.generateCode(prompt);
  }

  async generateGitignore(techStack) {
    const prompt = `
Generate a comprehensive .gitignore file for a project using: ${techStack.join(', ')}

Include patterns for:
- Build artifacts
- Dependencies
- Environment files
- IDE files
- OS files
- Temporary files
    `;

    return await this.gemini.generateCode(prompt);
  }
}

// 使用示例
const generator = new GeminiProjectGenerator(new GeminiProWebAssistant('KEY'));

const projectSetup = await generator.generateProjectSetup({
  name: 'e-commerce-frontend',
  framework: 'react',
  typescript: true,
  build: 'vite',
  css: 'tailwind',
  state: 'zustand',
  testing: true,
  deployment: 'vercel'
});

const readme = await generator.generateREADME({
  name: 'e-commerce-frontend',
  description: 'Modern e-commerce frontend built with React and TypeScript',
  features: ['Product catalog', 'Shopping cart', 'User authentication', 'Payment integration'],
  techStack: ['React', 'TypeScript', 'Vite', 'Tailwind CSS', 'Zustand']
});

性能优化与最佳实践

智能缓存策略

// Gemini Pro辅助的智能缓存系统
class IntelligentCache {
  constructor(geminiAssistant) {
    this.gemini = geminiAssistant;
    this.strategies = new Map();
    this.metrics = new Map();
  }

  async determineBestCacheStrategy(dataType, accessPattern, size) {
    const prompt = `
For data type: ${dataType}, access pattern: ${accessPattern}, size: ${size}
Determine the optimal caching strategy considering:
- Performance requirements
- Memory constraints
- Access frequency
- Data volatility
- Consistency needs

Recommend specific caching patterns and libraries.
    `;

    const strategy = await this.gemini.generateCode(prompt);
    return this.parseCacheStrategy(strategy);
  }

  parseCacheStrategy(strategyText) {
    // 简化的策略解析
    if (strategyText.toLowerCase().includes('redis')) {
      return { type: 'distributed', engine: 'redis', ttl: 3600 };
    } else if (strategyText.toLowerCase().includes('in-memory')) {
      return { type: 'in-memory', engine: 'memory-cache', ttl: 300 };
    } else {
      return { type: 'local', engine: 'lru-cache', ttl: 1800 };
    }
  }

  async optimizeCacheForEndpoint(endpoint, usageData) {
    const prompt = `
Optimize caching for endpoint: ${endpoint} with usage data:
${JSON.stringify(usageData, null, 2)}

Suggest cache keys, TTL, invalidation strategy, and performance improvements.
    `;

    const optimization = await this.gemini.generateCode(prompt);
    return this.applyOptimization(optimization);
  }

  applyOptimization(optimization) {
    // 应用优化建议
    return {
      cacheKey: 'auto-generated-key',
      ttl: 1800,
      strategy: 'LRU',
      maxSize: '100MB'
    };
  }
}

// 实际的缓存实现
class OptimizedCache {
  constructor(strategy) {
    this.strategy = strategy;
    this.cache = new Map();
    this.accessCount = new Map();
    this.lastAccessed = new Map();
  }

  async get(key) {
    if (this.cache.has(key)) {
      // 更新访问统计
      this.accessCount.set(key, (this.accessCount.get(key) || 0) + 1);
      this.lastAccessed.set(key, Date.now());

      return this.cache.get(key);
    }

    return null;
  }

  async set(key, value, ttl = this.strategy.ttl) {
    this.cache.set(key, value);
    this.accessCount.set(key, 1);
    this.lastAccessed.set(key, Date.now());

    // 设置过期时间
    setTimeout(() => {
      this.cache.delete(key);
      this.accessCount.delete(key);
      this.lastAccessed.delete(key);
    }, ttl * 1000);
  }

  // LRU清除策略
  evictLeastRecentlyUsed() {
    if (this.cache.size > this.strategy.maxSize) {
      const oldestKey = [...this.lastAccessed.entries()]
        .reduce((oldest, [key, time]) =>
          time < oldest.time ? { key, time } : oldest,
          { key: null, time: Infinity }
        ).key;

      if (oldestKey) {
        this.cache.delete(oldestKey);
        this.accessCount.delete(oldestKey);
        this.lastAccessed.delete(oldestKey);
      }
    }
  }
}

总结

• Gemini Pro在Web开发中展现出强大的多模态理解能力
• 代码生成和理解功能显著提升了开发效率
• API设计和数据库建模辅助提供了架构指导
• 性能优化建议帮助构建高效应用
• 安全审计功能增强了代码安全性
• 自动化代码审查保证了代码质量
• 智能项目生成器加快了开发启动

Gemini Pro不仅是代码生成器，更是Web开发的智能助手，从架构设计到性能优化，全方位提升开发体验和产品质量。

最佳实践建议

1. 渐进式采用: 从简单的代码生成功能开始
2. 安全优先: 对AI生成的代码进行安全审计
3. 性能考量: 关注生成代码的性能特征
4. 持续学习: 根据项目需求调整使用策略
5. 质量保证: 结合传统测试确保代码质量

扩展阅读

1. Gemini Pro Documentation
2. Web Development with AI
3. Secure Coding Practices