捕获自定义NSURLProtocol中的POST参数

import Foundation

class CustomURLProtocol: NSURLProtocol {
    
    override class func canInit(with request: URLRequest) -> Bool {
        // 判断是否需要拦截该请求
        // 可根据request的URL、HTTP方法等进行判断
        return true
    }
    
    override class func canonicalRequest(for request: URLRequest) -> URLRequest {
        // 返回规范化的请求对象
        return request
    }
    
    override func startLoading() {
        // 开始加载请求
        guard let request = self.request as? NSMutableURLRequest else { return }
        
        // 获取POST参数
        if let httpBody = request.httpBody,
           let postParams = String(data: httpBody, encoding: .utf8) {
            // 处理POST参数
            print("POST参数：\(postParams)")
        }
        
        // 继续加载请求
        self.client?.urlProtocolDidFinishLoading(self)
    }
    
    override func stopLoading() {
        // 停止加载请求
    }
}

URLProtocol.registerClass(CustomURLProtocol.self)