From 893998916eab354d4002fbcdcb0a242a36a49684 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期四, 18 七月 2024 11:28:14 +0800
Subject: [PATCH] 3
---
src/main/java/com/se/simu/helper/WebHelper.java | 45 +++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 43 insertions(+), 2 deletions(-)
diff --git a/src/main/java/com/se/simu/helper/WebHelper.java b/src/main/java/com/se/simu/helper/WebHelper.java
index adc8d82..66985bd 100644
--- a/src/main/java/com/se/simu/helper/WebHelper.java
+++ b/src/main/java/com/se/simu/helper/WebHelper.java
@@ -9,8 +9,7 @@
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
-import java.io.FileInputStream;
-import java.io.PrintWriter;
+import java.io.*;
import java.net.InetAddress;
import java.net.URLEncoder;
import java.net.UnknownHostException;
@@ -189,6 +188,41 @@
}
/**
+ * 杈撳嚭瀛楄妭鏁扮粍
+ */
+ public static void writeBytes(byte[] bytes, HttpServletResponse res) throws IOException {
+ res.setContentType("application/octet-stream");
+
+ if (null == bytes) {
+ res.setStatus(HttpStatus.NOT_FOUND.value());
+ return;
+ }
+
+ OutputStream os = res.getOutputStream();
+ os.write(bytes, 0, bytes.length);
+ os.close();
+ }
+
+ /**
+ * 杈撳嚭Png鏂囦欢
+ */
+ public static void writePng(String filePath, HttpServletResponse res) throws IOException {
+ File file = new File(filePath);
+ if (!file.exists() || file.isDirectory()) {
+ res.setStatus(HttpStatus.NOT_FOUND.value());
+ return;
+ }
+
+
+ String fileName = URLEncoder.encode(filePath, "UTF-8").replace("+", "%20");
+ res.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + fileName);
+ res.setCharacterEncoding("UTF-8");
+ res.setContentType("image/png");
+
+ writeFile(filePath, res);
+ }
+
+ /**
* 鑾峰彇闅忔満鏁存暟
*/
public static int getRandomInt(int min, int max) {
@@ -227,6 +261,13 @@
String mime = getMime(ext);
res.setContentType(mime);
+ writeFile(file, res);
+ }
+
+ /**
+ * 鍐欐枃浠�
+ */
+ private static void writeFile(String file, HttpServletResponse res) throws IOException {
// 閫氳繃response瀵硅薄锛岃幏鍙栧埌杈撳嚭娴�
ServletOutputStream outputStream = res.getOutputStream();
// 瀹氫箟杈撳叆娴侊紝閫氳繃杈撳叆娴佽鍙栨枃浠跺唴瀹�
--
Gitblit v1.9.3