对接支付开发

2023-09-09 16:50:34 +08:00
parent 362d433bb3
commit 4d2d8b0976
47 changed files with 2503 additions and 2 deletions
@@ -0,0 +1,37 @@
+package com.ruoyi.util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * 文件读取类
+ */
+public class FileUtil {
+
+
+    /**
+     * 获取文件内容
+     * @param fileName
+     * @return
+     */
+    public static String readToStr(String fileName){
+        InputStream is = FileUtil.class.getClassLoader().getResourceAsStream(fileName);
+        ByteArrayOutputStream os = new ByteArrayOutputStream(2048);
+        byte[] buffer = new byte[1024];
+
+        String str;
+        try {
+            int length;
+            while((length = is.read(buffer)) != -1) {
+                os.write(buffer, 0, length);
+            }
+
+            str = os.toString("UTF-8");
+        } catch (IOException var5) {
+            throw new IllegalArgumentException("无效的密钥", var5);
+        }
+        return str;
+    }
+
+}