From e5d40172f9bd9b0b967cb0e74b551f1a135dae6f Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期日, 22 九月 2024 16:06:53 +0800
Subject: [PATCH] 1
---
src/main/java/com/se/simu/helper/WebHelper.java | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 51 insertions(+), 7 deletions(-)
diff --git a/src/main/java/com/se/simu/helper/WebHelper.java b/src/main/java/com/se/simu/helper/WebHelper.java
index 08db9f8..dd1d36a 100644
--- a/src/main/java/com/se/simu/helper/WebHelper.java
+++ b/src/main/java/com/se/simu/helper/WebHelper.java
@@ -1,6 +1,6 @@
package com.se.simu.helper;
-import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.web.context.request.RequestContextHolder;
@@ -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;
@@ -32,10 +31,16 @@
private final static String UNKNOWN = "unknown";
+ public static boolean isWin() {
+ String osName = System.getProperty("os.name");
+
+ return osName.startsWith("Windows");
+ }
+
/**
- * 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 4
+ * 鏍煎紡鍖栨棩鏈�
*/
- public static final SimpleDateFormat YMDHMS = new SimpleDateFormat("yyyyMMddHHmmss");
+ public final static SimpleDateFormat YMDHMS = new SimpleDateFormat("yyyyMMddHHmmss");
/**
* 瀛楃涓�,鏄惁涓虹┖null鍜岀┖鏍�
@@ -53,8 +58,6 @@
/**
* 鑾峰彇涓绘満IP
- *
- * @return
*/
public static String getHostIp() {
try {
@@ -189,6 +192,40 @@
}
/**
+ * 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 +264,13 @@
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�
--
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