feat：模块名称调整

2023-01-11 11:21:01 +08:00
parent 61a4a6494a
commit c721e4877f
125 changed files with 56 additions and 56 deletions
--- a/springboot-util/src/main/java/com/tiesheng/util/ip2region/IpUtil.java
+++ b/springboot-util/src/main/java/com/tiesheng/util/ip2region/IpUtil.java
@@ -0,0 +1,117 @@
+package com.tiesheng.util.ip2region;
+
+/**
+ * util class
+ *
+ * @author chenxin<chenxin619315 @ gmail.com>
+ */
+public class IpUtil {
+    /**
+     * write specfield bytes to a byte array start from offset
+     *
+     * @param b
+     * @param offset
+     * @param v
+     * @param bytes
+     */
+    public static void write(byte[] b, int offset, long v, int bytes) {
+        for (int i = 0; i < bytes; i++) {
+            b[offset++] = (byte) ((v >>> (8 * i)) & 0xFF);
+        }
+    }
+
+    /**
+     * write a int to a byte array
+     *
+     * @param b
+     * @param offset
+     * @param v
+     */
+    public static void writeIntLong(byte[] b, int offset, long v) {
+        b[offset++] = (byte) ((v >> 0) & 0xFF);
+        b[offset++] = (byte) ((v >> 8) & 0xFF);
+        b[offset++] = (byte) ((v >> 16) & 0xFF);
+        b[offset] = (byte) ((v >> 24) & 0xFF);
+    }
+
+    /**
+     * get a int from a byte array start from the specifiled offset
+     *
+     * @param b
+     * @param offset
+     */
+    public static long getIntLong(byte[] b, int offset) {
+        return (
+                ((b[offset++] & 0x000000FFL)) |
+                        ((b[offset++] << 8) & 0x0000FF00L) |
+                        ((b[offset++] << 16) & 0x00FF0000L) |
+                        ((b[offset] << 24) & 0xFF000000L)
+        );
+    }
+
+    /**
+     * get a int from a byte array start from the specifield offset
+     *
+     * @param b
+     * @param offset
+     */
+    public static int getInt3(byte[] b, int offset) {
+        return (
+                (b[offset++] & 0x000000FF) |
+                        (b[offset++] & 0x0000FF00) |
+                        (b[offset] & 0x00FF0000)
+        );
+    }
+
+    public static int getInt2(byte[] b, int offset) {
+        return (
+                (b[offset++] & 0x000000FF) |
+                        (b[offset] & 0x0000FF00)
+        );
+    }
+
+    public static int getInt1(byte[] b, int offset) {
+        return (
+                (b[offset] & 0x000000FF)
+        );
+    }
+
+    /**
+     * string ip to long ip
+     *
+     * @param ip
+     * @return long
+     */
+    public static long ip2long(String ip) {
+        String[] p = ip.split("\\.");
+        if (p.length != 4) {
+            return 0;
+        }
+
+        int p1 = ((Integer.valueOf(p[0]) << 24) & 0xFF000000);
+        int p2 = ((Integer.valueOf(p[1]) << 16) & 0x00FF0000);
+        int p3 = ((Integer.valueOf(p[2]) << 8) & 0x0000FF00);
+        int p4 = ((Integer.valueOf(p[3]) << 0) & 0x000000FF);
+
+        return ((p1 | p2 | p3 | p4) & 0xFFFFFFFFL);
+    }
+
+    /**
+     * int to ip string
+     *
+     * @param ip
+     * @return string
+     */
+    public static String long2ip(long ip) {
+        StringBuilder sb = new StringBuilder();
+
+        sb
+                .append((ip >> 24) & 0xFF).append('.')
+                .append((ip >> 16) & 0xFF).append('.')
+                .append((ip >> 8) & 0xFF).append('.')
+                .append((ip >> 0) & 0xFF);
+
+        return sb.toString();
+    }
+
+}