springboot批量下载
时间: 2023-11-11 11:59:15 浏览: 47
您可以使用Java中的HttpClient库来实现批量下载。具体步骤如下:
1. 创建HttpClient对象
2. 创建HttpGet对象,设置请求头和请求参数
3. 执行请求,获取HttpResponse对象
4. 从HttpResponse对象中获取响应体,即文件流
5. 将文件流写入本地文件
以下是示例代码:
```java
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet(url);
httpGet.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3");
CloseableHttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity();
InputStream inputStream = entity.getContent();
FileOutputStream outputStream = new FileOutputStream(new File(fileName));
byte[] buffer = new byte[1024];
int len;
while ((len = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, len);
}
outputStream.close();
inputStream.close();
response.close();
httpClient.close();
```