diff --git a/src/main/java/hxy/bytecode/java8/TestSupplier.java b/src/main/java/hxy/bytecode/java8/TestSupplier.java
new file mode 100644
index 0000000000000000000000000000000000000000..23193621063b5aab85b0b1a54b6b04df5de58c4e
--- /dev/null
+++ b/src/main/java/hxy/bytecode/java8/TestSupplier.java
@@ -0,0 +1,21 @@
+package hxy.bytecode.java8;
+
+import java.util.function.Supplier;
+
+public class TestSupplier {
+    private int age;
+
+    TestSupplier() {
+        System.out.println("正在初始化" + age);
+    }
+
+    public static void main(String[] args) {
+        //创建Supplier容器，声明为TestSupplier类型，此时并不会调用对象的构造方法，即不会创建对象
+        Supplier<TestSupplier> sup = TestSupplier::new;
+        System.out.println("--------");
+        //调用get()方法，此时会调用对象的构造方法，即获得到真正对象
+        final TestSupplier testSupplier = sup.get();
+        //每次get都会调用构造方法，即获取的对象不同
+        sup.get();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/hxy/bytecode/proxy/JdkInvocation.java b/src/main/java/hxy/bytecode/proxy/JdkInvocation.java
new file mode 100644
index 0000000000000000000000000000000000000000..c40ed2dcc8a2fb9a70ae98843f31d52df879dd7e
--- /dev/null
+++ b/src/main/java/hxy/bytecode/proxy/JdkInvocation.java
@@ -0,0 +1,25 @@
+package hxy.bytecode.proxy;
+ 
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+ 
+/**
+ * @author iris
+ */
+public class JdkInvocation implements InvocationHandler {
+ 
+	private Object object;
+ 
+	public void setTagServiceObject(Object object) {
+		this.object = object;
+	}
+ 
+	@Override
+	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+		System.out.println("TagService代理前");
+		Object returnObject = method.invoke(this.object, args);
+		System.out.println("TagService代理后");
+		return returnObject;
+	}
+ 
+}
\ No newline at end of file
diff --git a/src/main/java/hxy/bytecode/proxy/ProxyStart.java b/src/main/java/hxy/bytecode/proxy/ProxyStart.java
new file mode 100644
index 0000000000000000000000000000000000000000..1439236ca754ccb2312d50698449a2be159d6454
--- /dev/null
+++ b/src/main/java/hxy/bytecode/proxy/ProxyStart.java
@@ -0,0 +1,26 @@
+package hxy.bytecode.proxy;
+
+import hxy.bytecode.proxy.service.TagService;
+import hxy.bytecode.proxy.service.impl.TagServiceImpl;
+
+import java.lang.reflect.Proxy;
+
+/**
+ * @author iris
+ * @link https://blog.csdn.net/zxysshgood/article/details/78684229
+ * https://blog.csdn.net/zxysshgood/article/details/78684229
+ */
+public class ProxyStart {
+
+    public static void main(String[] args) {
+
+        JdkInvocation invocation = new JdkInvocation();
+
+        invocation.setTagServiceObject(new TagServiceImpl());
+
+        TagService service = (TagService) Proxy.newProxyInstance(ProxyStart.class.getClassLoader(), new Class[]{TagService.class}, invocation);
+
+        service.printSomeThing();
+
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/hxy/bytecode/proxy/service/TagService.java b/src/main/java/hxy/bytecode/proxy/service/TagService.java
new file mode 100644
index 0000000000000000000000000000000000000000..95e05157473ee8f0de051618eac04313d6840b60
--- /dev/null
+++ b/src/main/java/hxy/bytecode/proxy/service/TagService.java
@@ -0,0 +1,8 @@
+package hxy.bytecode.proxy.service;
+
+/**
+ * @author iris
+ */
+public interface TagService {
+    void printSomeThing();
+}
\ No newline at end of file
diff --git a/src/main/java/hxy/bytecode/proxy/service/impl/TagServiceImpl.java b/src/main/java/hxy/bytecode/proxy/service/impl/TagServiceImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..60d71b46df27861bb1ad53cab6957f64b90815be
--- /dev/null
+++ b/src/main/java/hxy/bytecode/proxy/service/impl/TagServiceImpl.java
@@ -0,0 +1,16 @@
+package hxy.bytecode.proxy.service.impl;
+
+import hxy.bytecode.proxy.service.TagService;
+
+/**
+ * @author iris
+ */
+public class TagServiceImpl implements TagService {
+
+    @Override
+    public final void printSomeThing() {
+        System.err.println("this is printSomeThing Core ServiceImpl");
+    }
+
+
+}
\ No newline at end of file
diff --git "a/src/main/java/hxy/bytecode/proxy/\346\210\252\345\233\276_\351\200\211\346\213\251\345\214\272\345\237\237_20210823232147.png" "b/src/main/java/hxy/bytecode/proxy/\346\210\252\345\233\276_\351\200\211\346\213\251\345\214\272\345\237\237_20210823232147.png"
new file mode 100644
index 0000000000000000000000000000000000000000..faa4e9a4afc57bdad2ef0dec9524ed700b094395
Binary files /dev/null and "b/src/main/java/hxy/bytecode/proxy/\346\210\252\345\233\276_\351\200\211\346\213\251\345\214\272\345\237\237_20210823232147.png" differ
diff --git a/src/main/java/hxy/bytecode/sql/IpLongUtils.java b/src/main/java/hxy/bytecode/sql/IpLongUtils.java
new file mode 100644
index 0000000000000000000000000000000000000000..58a2167eea14bd7013326ab2194ee2a3fee59b18
--- /dev/null
+++ b/src/main/java/hxy/bytecode/sql/IpLongUtils.java
@@ -0,0 +1,42 @@
+package hxy.bytecode.sql;
+
+
+/**
+ * @author Mikan
+ */
+public class IpLongUtils {
+
+    /**
+     * 把字符串IP转换成long
+     *
+     * @param ipStr 字符串IP
+     * @return IP对应的long值
+     */
+    public static long ip2Long(String ipStr) {
+        String[] ip = ipStr.split("\\.");
+        return (Long.valueOf(ip[0]) << 24) + (Long.valueOf(ip[1]) << 16)
+                + (Long.valueOf(ip[2]) << 8) + Long.valueOf(ip[3]);
+    }
+
+    /**
+     * 把IP的long值转换成字符串
+     *
+     * @param ipLong IP的long值
+     * @return long值对应的字符串
+     */
+    public static String long2Ip(long ipLong) {
+        StringBuilder ip = new StringBuilder();
+        ip.append(ipLong >>> 24).append(".");
+        ip.append((ipLong >>> 16) & 0xFF).append(".");
+        ip.append((ipLong >>> 8) & 0xFF).append(".");
+        ip.append(ipLong & 0xFF);
+        return ip.toString();
+    }
+
+    public static void main(String[] args) {
+        System.out.println(ip2Long("192.168.0.1"));
+        System.out.println(long2Ip(3232235521L));
+        System.out.println(ip2Long("10.0.0.1"));
+    }
+
+}