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xhr 使用XHR方法加载文件

xhr​

类型: MethodDeclaration

定义位置: loader.ts

描述​

使用XHR方法加载文件

返回值:响应数据

参数​

参数名类型描述默认值
\{path, type\}`{
/** 文件路径 */
path: string
/** 资源类型 */
type: 'text' | 'json' | 'blob' | 'arraybuffer'
}`--

返回值​

类型: Promise<any>

响应数据

源代码​

位置: 第 143 行

public xhr({path, type}: {
    /** 文件路径 */
    path: string
    /** 资源类型 */
    type: 'text' | 'json' | 'blob' | 'arraybuffer'
  }): Promise<any> {
    return new Promise((resolve, reject) => {
      const meta = Data.manifest?.pathMap[path]
      const size = meta?.size ?? 0
      const request = new XMLHttpRequest()
      const progress = new LoadingProgress(size)
      // 开始新的加载任务
      if (this.complete) {
        this.complete = false
        this.promise = new Promise(resolve => {
          this.resolve = resolve
        })
      }
      this.loadingProgressList.push(progress)
      // 更新加载进度
      request.onloadstart =
      request.onprogress = event => {
        progress.update(event)
      }
      request.onload = event => {
        progress.update(event)
        resolve(request.response)
      }
      request.onerror = event => {
        progress.loaded = size
        reject(request.response)
      }
      request.open('GET', path)
      request.responseType = type
      request.send()
    })
  }

文档生成时间：2025/7/21 20:53:39