129 lines
4.3 KiB
Plaintext
129 lines
4.3 KiB
Plaintext
package com.sercurityControl.proteam.util;
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import lombok.extern.slf4j.Slf4j;
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import java.io.*;
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import java.net.URL;
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import java.net.URLConnection;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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import static org.springframework.util.FileCopyUtils.BUFFER_SIZE;
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@Slf4j
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public class DownLoadUtil {
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public static void downFile(String filePath,String fileType){
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try{
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String savePath = "/data/vmw/queryDownload/"; // linux 系统路径
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String os = System.getProperty("os.name");
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if (os.toLowerCase().startsWith("win")) {
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savePath = "D://files/queryDownload/";
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}
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// 构造URL
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URL url = new URL(filePath);
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// 打开连接
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URLConnection con = url.openConnection();
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//设置请求超时为20s
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con.setConnectTimeout(20 * 1000);
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//文件路径不存在 则创建
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File sf = new File(savePath);
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if (!sf.exists()) {
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sf.mkdirs();
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}
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//jdk 1.7 新特性自动关闭
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try (InputStream in = con.getInputStream();
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OutputStream out = new FileOutputStream(sf.getPath() + "\\" + "filename."+fileType)) {
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//创建缓冲区
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byte[] buff = new byte[1024];
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int n;
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// 开始读取
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while ((n = in.read(buff)) >= 0) {
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out.write(buff, 0, n);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}catch (Exception e){
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log.error(e.toString(),e);
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}
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}
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public static void DownLoadFile(String url ,String fileType){
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BufferedReader in=null;
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try{
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URL realUrl = new URL(url);
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// 打开和URL之间的连接
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URLConnection connection = realUrl.openConnection();
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// 设置通用的请求属性
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connection.setRequestProperty("accept", "*/*");
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connection.setRequestProperty("connection", "Keep-Alive");
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connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
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// 建立实际的连接
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connection.connect();
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// 获取所有响应头字段
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Map<String, List<String>> map = connection.getHeaderFields();
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// 遍历所有的响应头字段
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for (String key : map.keySet()) {
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System.out.println(key + "--->" + map.get(key));
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}
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Date date = new Date();
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SimpleDateFormat dateFormat= new SimpleDateFormat("yyyyMMddhhmmss");
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InputStream inputStream = connection.getInputStream();
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String videoFiles = "/data/vmw/queryDownload/"; // linux 系统路径
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String os = System.getProperty("os.name");
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if (os.toLowerCase().startsWith("win")) {
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videoFiles = "D://files/queryDownload/";
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}
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String filesPath = videoFiles + "pictureWebFile/" + dateFormat.format(date) + "." + fileType;
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File saveFile = new File(filesPath);
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//生成文件夹
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if (!saveFile.getParentFile().exists()) {
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saveFile.getParentFile().mkdirs();
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}
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FileOutputStream outputStream = new FileOutputStream(saveFile);
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byte[] buffer = new byte[BUFFER_SIZE];
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int bytesRead = -1;
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System.out.println("Receiving data...");
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while ((bytesRead = inputStream.read(buffer)) != -1) {
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outputStream.write(buffer, 0, bytesRead);
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}
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System.out.println("Data received.");
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outputStream.close();
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inputStream.close();
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// 定义 BufferedReader输入流来读取URL的响应
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in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8"));
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}catch (Exception e){
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System.out.println("发送GET请求出现异常！" + e);
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log.error(e.toString(),e);
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}
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finally {
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try {
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if (in != null) {
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in.close();
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}
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} catch (Exception e2) {
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e2.printStackTrace();
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}
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}
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}
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}
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