文章详细阐述了CGLIB动态代理机制的工作流程，以Calculator类为例，介绍了代理类Calculator$$EnhancerByCGLIB$$b514f2c0的add方法如何通过FastClass和MethodProxy进行方法调用，最终执行到Calculator的add方法，同时涉及到了回调方法的拦截和执行。
highlight: arduino-light
CGLIB代理类对象的调用过程详解
以代理类对象的add方法为例,讲一下CGLIB代理类对象的调用过程。
被代理类:Calculator
代理类:Calculator\$$EnhancerByCGLIB$$b514f2c0
被代理类的FastClass:Calculator\$$FastClassByCGLIB$$660dfb8f
代理类的FasClass:Calculator\$$EnhancerByCGLIB\$$b514f2c0\$$FastClassByCGLIB$$ec726d06
之前在生成代理类的时候有1个命名规则:类前缀 + \$$ + source + ByCGLIB + \$$ + hashCode
比如类名是Student,给Studeng生成代理类的类名是Enhance,那么生成的代理类的类名就是类似这种
Studeng\$$EnhancerByCGLIB$$a323h1ck0
代理类源码
```java package cglib;
import java.lang.reflect.Method; import org.springframework.cglib.core.ReflectUtils; import org.springframework.cglib.core.Signature; import org.springframework.cglib.proxy.Callback; import org.springframework.cglib.proxy.Factory; import org.springframework.cglib.proxy.MethodInterceptor; import org.springframework.cglib.proxy.MethodProxy;
public class Calculator$$EnhancerByCGLIB$$b514f2c0 extends Calculator implements Factory { private boolean CGLIB$BOUND; public static Object CGLIB$FACTORYDATA; private static final ThreadLocal CGLIB$THREADCALLBACKS; private static final Callback[] CGLIB$STATICCALLBACKS; private MethodInterceptor CGLIB$CALLBACK0; private static Object CGLIB$CALLBACK_FILTER; private static final Method CGLIB$add$0$Method; private static final MethodProxy CGLIB$add$0$Proxy; private static final Object[] CGLIB$emptyArgs; private static final Method CGLIB$equals$1$Method; private static final MethodProxy CGLIB$equals$1$Proxy; private static final Method CGLIB$toString$2$Method; private static final MethodProxy CGLIB$toString$2$Proxy; private static final Method CGLIB$hashCode$3$Method; private static final MethodProxy CGLIB$hashCode$3$Proxy; private static final Method CGLIB$clone$4$Method; private static final MethodProxy CGLIB$clone$4$Proxy;
static void CGLIB$STATICHOOK1() {
CGLIB$THREAD_CALLBACKS = new ThreadLocal();
CGLIB$emptyArgs = new Object[0];
Class var0 = Class.forName("cglib.Calculator$$EnhancerByCGLIB$$b514f2c0");
Class var1;
Method[] var10000 = ReflectUtils.findMethods(new String[]{"equals", "(Ljava/lang/Object;)Z", "toString", "()Ljava/lang/String;", "hashCode", "()I", "clone", "()Ljava/lang/Object;"}, (var1 = Class.forName("java.lang.Object")).getDeclaredMethods());
CGLIB$equals$1$Method = var10000[0];
CGLIB$equals$1$Proxy = MethodProxy.create(var1, var0, "(Ljava/lang/Object;)Z", "equals", "CGLIB$equals$1");
CGLIB$toString$2$Method = var10000[1];
CGLIB$toString$2$Proxy = MethodProxy.create(var1, var0, "()Ljava/lang/String;", "toString", "CGLIB$toString$2");
CGLIB$hashCode$3$Method = var10000[2];
CGLIB$hashCode$3$Proxy = MethodProxy.create(var1, var0, "()I", "hashCode", "CGLIB$hashCode$3");
CGLIB$clone$4$Method = var10000[3];
CGLIB$clone$4$Proxy = MethodProxy.create(var1, var0, "()Ljava/lang/Object;", "clone", "CGLIB$clone$4");
CGLIB$add$0$Method = ReflectUtils.findMethods(new String[]{"add", "(II)I"},
(var1 = Class.forName("cglib.Calculator")).getDeclaredMethods())[0];
CGLIB$add$0$Proxy = MethodProxy.create(var1, var0, "(II)I", "add", "CGLIB$add$0");
}
final int CGLIB$add$0(int var1, int var2) {
return super.add(var1, var2);
}
public final int add(int var1, int var2) {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
if (var10000 != null) {
Object var3 = var10000.intercept(this, CGLIB$add$0$Method, new Object[]{new Integer(var1), new Integer(var2)}, CGLIB$add$0$Proxy);
return var3 == null ? 0 : ((Number)var3).intValue();
} else {
return super.add(var1, var2);
}
}
final boolean CGLIB$equals$1(Object var1) {
return super.equals(var1);
}
public final boolean equals(Object var1) {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
if (var10000 != null) {
Object var2 = var10000.intercept(this, CGLIB$equals$1$Method, new Object[]{var1}, CGLIB$equals$1$Proxy);
return var2 == null ? false : (Boolean)var2;
} else {
return super.equals(var1);
}
}
final String CGLIB$toString$2() {
return super.toString();
}
public final String toString() {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
return var10000 != null ? (String)var10000.intercept(this, CGLIB$toString$2$Method, CGLIB$emptyArgs, CGLIB$toString$2$Proxy) : super.toString();
}
final int CGLIB$hashCode$3() {
return super.hashCode();
}
public final int hashCode() {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
if (var10000 != null) {
Object var1 = var10000.intercept(this, CGLIB$hashCode$3$Method, CGLIB$emptyArgs, CGLIB$hashCode$3$Proxy);
return var1 == null ? 0 : ((Number)var1).intValue();
} else {
return super.hashCode();
}
}
final Object CGLIB$clone$4() throws CloneNotSupportedException {
return super.clone();
}
protected final Object clone() throws CloneNotSupportedException {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
return var10000 != null ? var10000.intercept(this, CGLIB$clone$4$Method, CGLIB$emptyArgs, CGLIB$clone$4$Proxy) : super.clone();
}
public static MethodProxy CGLIB$findMethodProxy(Signature var0) {
String var10000 = var0.toString();
switch(var10000.hashCode()) {
case -1287932281:
if (var10000.equals("add(II)I")) {
return CGLIB$add$0$Proxy;
}
break;
case -508378822:
if (var10000.equals("clone()Ljava/lang/Object;")) {
return CGLIB$clone$4$Proxy;
}
break;
case 1826985398:
if (var10000.equals("equals(Ljava/lang/Object;)Z")) {
return CGLIB$equals$1$Proxy;
}
break;
case 1913648695:
if (var10000.equals("toString()Ljava/lang/String;")) {
return CGLIB$toString$2$Proxy;
}
break;
case 1984935277:
if (var10000.equals("hashCode()I")) {
return CGLIB$hashCode$3$Proxy;
}
}
return null;
}
public Calculator$$EnhancerByCGLIB$$b514f2c0() {
CGLIB$BIND_CALLBACKS(this);
}
public static void CGLIB$SET_THREAD_CALLBACKS(Callback[] var0) {
CGLIB$THREAD_CALLBACKS.set(var0);
}
public static void CGLIB$SET_STATIC_CALLBACKS(Callback[] var0) {
CGLIB$STATIC_CALLBACKS = var0;
}
private static final void CGLIB$BIND_CALLBACKS(Object var0) {
Calculator$$EnhancerByCGLIB$$b514f2c0 var1 = (Calculator$$EnhancerByCGLIB$$b514f2c0)var0;
if (!var1.CGLIB$BOUND) {
var1.CGLIB$BOUND = true;
Object var10000 = CGLIB$THREAD_CALLBACKS.get();
if (var10000 == null) {
var10000 = CGLIB$STATIC_CALLBACKS;
if (var10000 == null) {
return;
}
}
var1.CGLIB$CALLBACK_0 = (MethodInterceptor)((Callback[])var10000)[0];
}
}
public Object newInstance(Callback[] var1) {
CGLIB$SET_THREAD_CALLBACKS(var1);
Calculator$$EnhancerByCGLIB$$b514f2c0 var10000 = new Calculator$$EnhancerByCGLIB$$b514f2c0();
CGLIB$SET_THREAD_CALLBACKS((Callback[])null);
return var10000;
}
public Object newInstance(Callback var1) {
CGLIB$SET_THREAD_CALLBACKS(new Callback[]{var1});
Calculator$$EnhancerByCGLIB$$b514f2c0 var10000 = new Calculator$$EnhancerByCGLIB$$b514f2c0();
CGLIB$SET_THREAD_CALLBACKS((Callback[])null);
return var10000;
}
public Object newInstance(Class[] var1, Object[] var2, Callback[] var3) {
CGLIB$SET_THREAD_CALLBACKS(var3);
Calculator$$EnhancerByCGLIB$$b514f2c0 var10000 = new Calculator$$EnhancerByCGLIB$$b514f2c0;
switch(var1.length) {
case 0:
var10000.<init>();
CGLIB$SET_THREAD_CALLBACKS((Callback[])null);
return var10000;
default:
throw new IllegalArgumentException("Constructor not found");
}
}
public Callback getCallback(int var1) {
CGLIB$BIND_CALLBACKS(this);
MethodInterceptor var10000;
switch(var1) {
case 0:
var10000 = this.CGLIB$CALLBACK_0;
break;
default:
var10000 = null;
}
return var10000;
}
public void setCallback(int var1, Callback var2) {
switch(var1) {
case 0:
this.CGLIB$CALLBACK_0 = (MethodInterceptor)var2;
default:
}
}
public Callback[] getCallbacks() {
CGLIB$BIND_CALLBACKS(this);
return new Callback[]{this.CGLIB$CALLBACK_0};
}
public void setCallbacks(Callback[] var1) {
this.CGLIB$CALLBACK_0 = (MethodInterceptor)var1[0];
}
static {
CGLIB$STATICHOOK1();
}}
```
当我们执行到下面这行代码calculator.add(1, 1);会进入代理类的add方法
```java
import org.springframework.cglib.core.DebuggingClassWriter; import org.springframework.cglib.core.KeyFactory; import org.springframework.cglib.core.MethodWrapper; import org.springframework.cglib.proxy.Enhancer;
import java.lang.reflect.Method;
/* * @author: claude * @date: 2023/3/3 * @description: */ public class CalculatorProxyFactory { public static void main(String[] args) { //动态代理创建的class文件存储到本地 System.setProperty(DebuggingClassWriter.DEBUGLOCATIONPROPERTY, "e:\proxy"); //通过cglib动态代理获取代理对象的过程，创建调用的对象 Enhancer enhancer = new Enhancer(); //设置enhancer对象的父类 enhancer.setSuperclass(Calculator.class); //设置enhancer的回调对象 enhancer.setCallback(new CalculatorMethodInterceptor(new Calculator())); //创建代理对象 Calculator calculator = (Calculator) enhancer.create(); //通过代理对象调用目标方法 calculator.add(1, 1); } } ```
代理类的add方法
```java public final int add(int var1, int var2) { //this.CGLIB$CALLBACK0;就是我们的CalculatorMethodInterceptor MethodInterceptor var10000 = this.CGLIB$CALLBACK0; if (var10000 == null) { CGLIB$BINDCALLBACKS(this); var10000 = this.CGLIB$CALLBACK0; }
if (var10000 != null) {
/*
执行CalculatorMethodInterceptor#intercept
此方法用来实现方法的拦截,四个参数分别表示的含义：
obj:cglib生成的代理对象实例
method： 被代理对象的原始add方法
args：被代理对象的原始add方法入参
proxy:被代理对象的原始add方法对应的MethodProxy
*/
Object var3 = var10000.intercept
(this, CGLIB$add$0$Method, new Object[]{new Integer(var1), new Integer(var2)}, CGLIB$add$0$Proxy);
return var3 == null ? 0 : ((Number)var3).intValue();
} else {
return super.add(var1, var2);
}
}```
CalculatorMethodInterceptor#intercept
```java package cglib;
import com.sun.org.apache.bcel.internal.generic.Type; import org.springframework.cglib.core.Signature; import org.springframework.cglib.proxy.MethodInterceptor; import org.springframework.cglib.proxy.MethodProxy; import org.springframework.cglib.reflect.FastClass;
import java.lang.reflect.Method; public class CalculatorMethodInterceptor implements MethodInterceptor {
private Calculator target;
public CalculatorMethodInterceptor(Calculator target) {
this.target = target;
}/* 此方法用来实现方法的拦截,四个参数分别表示的含义： obj:cglib生成的代理对象实例 method： 被代理对象的原始add方法 args：被代理对象的原始add方法入参 proxy:被代理对象的原始add方法对应的MethodProxy */ @Override public Object intercept(Object proxy, Method method, Object[] args, MethodProxy methodProxy) throws Throwable { Object result = methodProxy.invokeSuper(proxy, args); System.out.println("计算结果:" + result); return result; } } ```
MethodProxy#invokeSuper
java
public Object invokeSuper(Object obj, Object[] args) throws Throwable {
try {
//1.获取代理类和被代理类的Fastclass
//2.获取要调用的方法的在2个Fastclass中的下标
init();
FastClassInfo fci = fastClassInfo;
//代理类的invoke方法
//fci.f2:生成的代理类的Fastclass
//fci.i2:生成的代理类的Fastclass中的方法的下标
return fci.f2.invoke(fci.i2, obj, args);
}
catch (InvocationTargetException e) {
throw e.getTargetException();
}
}
先看下什么是MethodProxy?
在生成的代理类中会为每个被代理类的方法创建1个MethodProxy,创建MethodProxy的方法就是create方法。
MethodProxy封装了方法名和签名以及CreateInfo。
java
public static MethodProxy create(Class c1, Class c2, String desc, String name1, String name2) {
MethodProxy proxy = new MethodProxy();
proxy.sig1 = new Signature(name1, desc);
proxy.sig2 = new Signature(name2, desc);
proxy.createInfo = new CreateInfo(c1, c2);
return proxy;
}
CreateInfo封装了代理类和被代理类的class
JAVA
public CreateInfo(Class c1, Class c2) {
this.c1 = c1;
this.c2 = c2;
AbstractClassGenerator fromEnhancer = AbstractClassGenerator.getCurrent();
if (fromEnhancer != null) {
namingPolicy = fromEnhancer.getNamingPolicy();
strategy = fromEnhancer.getStrategy();
attemptLoad = fromEnhancer.getAttemptLoad();
}
}
综上所述MethodProxy封装了方法名和签名以及代理类和被代理类的class。
MethodProxy#init
接着继续往下看init方法,主要是生成fastClassInfo。
java
private void init() {
if (fastClassInfo == null) {
synchronized (initLock) {
if (fastClassInfo == null) {
//createInfo里封装了代理类和被代理类的class
CreateInfo ci = createInfo;
FastClassInfo fci = new FastClassInfo();
//f1:被代理类的Fastclass
fci.f1 = helper(ci, ci.c1);
//f2:生成的代理类的Fastclass
fci.f2 = helper(ci, ci.c2);
//i1:被代理类的Fastclass中的下标 sig1 = add,(II)I
fci.i1 = fci.f1.getIndex(sig1);
//i2:生成的代理类的Fastclass中的下标 sig2 = CGLIB$add$0,(II)I
fci.i2 = fci.f2.getIndex(sig2);
fastClassInfo = fci;
createInfo = null;
}
}
}
}
第一步:生成被代理类的Fastclass和代理类的Fastclass。
和之前生成EnhanceKey以及代理类Calculator以及MethodWrapper.MethodWrapperKey并没有什么不同。
唯一不同的是这里用的ClassGenerator是FastClass.Generator。
java
private static FastClass helper(CreateInfo ci, Class type) {
FastClass.Generator g = new FastClass.Generator();
g.setType(type);
// SPRING PATCH BEGIN
g.setContextClass(type);
// SPRING PATCH END
g.setClassLoader(ci.c2.getClassLoader());
g.setNamingPolicy(ci.namingPolicy);
g.setStrategy(ci.strategy);
g.setAttemptLoad(ci.attemptLoad);
return g.create();
}
第二步:获取被代理类的Fastclass中add方法的下标和代理类的Fastclass中的add方法下标
```java
//被代理类的Fastclass中的下标 0
public int getIndex(Signature var1) {
String var10000 = var1.toString();
switch(var10000.hashCode()) {
case -1287932281:
if (var10000.equals("add(II)I")) {
return 0;
}
}
}
//生成的代理类的Fastclass中的下标 18
public int getIndex(Signature var1) {
String var10000 = var1.toString();
switch(var10000.hashCode()) {
case -1287932281:
if (var10000.equals("add(II)I")) {
return 19;
}
}} ```
第三步:将代理类和被代理类的FastClass以及代理类和被代理类的add方法的下标封装到FastClassInfo
```java private static class FastClassInfo {
//被代理类FastClass
FastClass f1;
//代理类FastClass
FastClass f2;
//被代理类FastClass中add方法的下标
int i1;
//代理类FastClass中add方法的下标
int i2;
}```
FastClass#invoke
接下来执行的代码是MethodProxy#invokeSuper中的
java
//fci.f2是代理类FastClass
//fci.i2是代理类FastClass中add方法的下标18
return fci.f2.invoke(fci.i2, obj, args);
也就是调用的是代理类的Fastclass的invoke方法,源码如下
```java
package cglib; import cglib.Calculator..EnhancerByCGLIB..b514f2c0; import java.lang.reflect.InvocationTargetException; import org.springframework.cglib.core.Signature; import org.springframework.cglib.proxy.Callback; import org.springframework.cglib.reflect.FastClass;
public class Calculator$$EnhancerByCGLIB$$b514f2c0$$FastClassByCGLIB$$ec726d06 extends FastClass { public Calculator$$EnhancerByCGLIB$$b514f2c0$$FastClassByCGLIB$$ec726d06(Class var1) { super(var1); }
/* var1=18 var2=cglib.Calculator$$EnhancerByCGLIB$$b514f2c0@57fffcd7 var3= {Object[2]@709} 参数1:方法下标 参数2:代理类对象 参数3:参数数组 */ public Object invoke(int var1, Object var2, Object[] var3) throws InvocationTargetException { //将代理类对象赋值给var10000 b514f2c0 var10000 = (b514f2c0)var2; int var10001 = var1;
try {
switch(var10001) {
case 0:
return new Integer(var10000.add(((Number)var3[0]).intValue(), ((Number)var3[1]).intValue()));
case 1:
return new Boolean(var10000.equals(var3[0]));
case 2:
return var10000.toString();
case 3:
return new Integer(var10000.hashCode());
case 4:
return var10000.clone();
case 5:
return var10000.newInstance((Callback[])var3[0]);
case 6:
return var10000.newInstance((Class[])var3[0], (Object[])var3[1], (Callback[])var3[2]);
case 7:
return var10000.newInstance((Callback)var3[0]);
case 8:
var10000.setCallbacks((Callback[])var3[0]);
return null;
case 9:
var10000.setCallback(((Number)var3[0]).intValue(), (Callback)var3[1]);
return null;
case 10:
return var10000.getCallback(((Number)var3[0]).intValue());
case 11:
return var10000.getCallbacks();
case 12:
return b514f2c0.CGLIB$findMethodProxy((Signature)var3[0]);
case 13:
b514f2c0.CGLIB$SET_THREAD_CALLBACKS((Callback[])var3[0]);
return null;
case 14:
b514f2c0.CGLIB$SET_STATIC_CALLBACKS((Callback[])var3[0]);
return null;
case 15:
return new Boolean(var10000.CGLIB$equals$1(var3[0]));
case 16:
return var10000.CGLIB$clone$4();
case 17:
return var10000.CGLIB$toString$2();
case 18:
//因为方法下标是18进入到这里
//var10000是代理类对象
//也就是说调用的是代理类对象的CGLIB$add$0方法
//
return new Integer(var10000.CGLIB$add$0(((Number)var3[0]).intValue(), ((Number)var3[1]).intValue()));
case 19:
return new Integer(var10000.CGLIB$hashCode$3());
case 20:
b514f2c0.CGLIB$STATICHOOK1();
return null;
}
} catch (Throwable var4) {
throw new InvocationTargetException(var4);
}
throw new IllegalArgumentException("Cannot find matching method/constructor");
}} ```
看看代理类对象的CGLIB$add$0方法吧
java
//代理类MyCalculator$$EnhancerByCGLIB$$d1716464的CGLIB$add$0方法
//最后调用的还是父类的add方法
final int CGLIB$add$0(int var1, int var2) {
return super.add(var1, var2);
}
附录:生成的字节码件
代理类
```java // // Source code recreated from a .class file by IntelliJ IDEA // (powered by Fernflower decompiler) //
package cglib;
import java.lang.reflect.Method; import org.springframework.cglib.core.ReflectUtils; import org.springframework.cglib.core.Signature; import org.springframework.cglib.proxy.Callback; import org.springframework.cglib.proxy.Factory; import org.springframework.cglib.proxy.MethodInterceptor; import org.springframework.cglib.proxy.MethodProxy;
public class Calculator$$EnhancerByCGLIB$$b514f2c0 extends Calculator implements Factory { private boolean CGLIB$BOUND; public static Object CGLIB$FACTORYDATA; private static final ThreadLocal CGLIB$THREADCALLBACKS; private static final Callback[] CGLIB$STATICCALLBACKS; private MethodInterceptor CGLIB$CALLBACK0; private static Object CGLIB$CALLBACK_FILTER; private static final Method CGLIB$add$0$Method; private static final MethodProxy CGLIB$add$0$Proxy; private static final Object[] CGLIB$emptyArgs; private static final Method CGLIB$equals$1$Method; private static final MethodProxy CGLIB$equals$1$Proxy; private static final Method CGLIB$toString$2$Method; private static final MethodProxy CGLIB$toString$2$Proxy; private static final Method CGLIB$hashCode$3$Method; private static final MethodProxy CGLIB$hashCode$3$Proxy; private static final Method CGLIB$clone$4$Method; private static final MethodProxy CGLIB$clone$4$Proxy;
static void CGLIB$STATICHOOK1() {
CGLIB$THREAD_CALLBACKS = new ThreadLocal();
CGLIB$emptyArgs = new Object[0];
Class var0 = Class.forName("cglib.Calculator$$EnhancerByCGLIB$$b514f2c0");
Class var1;
Method[] var10000 = ReflectUtils.findMethods(new String[]{"equals", "(Ljava/lang/Object;)Z", "toString", "()Ljava/lang/String;", "hashCode", "()I", "clone", "()Ljava/lang/Object;"}, (var1 = Class.forName("java.lang.Object")).getDeclaredMethods());
CGLIB$equals$1$Method = var10000[0];
CGLIB$equals$1$Proxy = MethodProxy.create(var1, var0, "(Ljava/lang/Object;)Z", "equals", "CGLIB$equals$1");
CGLIB$toString$2$Method = var10000[1];
CGLIB$toString$2$Proxy = MethodProxy.create(var1, var0, "()Ljava/lang/String;", "toString", "CGLIB$toString$2");
CGLIB$hashCode$3$Method = var10000[2];
CGLIB$hashCode$3$Proxy = MethodProxy.create(var1, var0, "()I", "hashCode", "CGLIB$hashCode$3");
CGLIB$clone$4$Method = var10000[3];
CGLIB$clone$4$Proxy = MethodProxy.create(var1, var0, "()Ljava/lang/Object;", "clone", "CGLIB$clone$4");
CGLIB$add$0$Method = ReflectUtils.findMethods(new String[]{"add", "(II)I"}, (var1 = Class.forName("cglib.Calculator")).getDeclaredMethods())[0];
CGLIB$add$0$Proxy = MethodProxy.create(var1, var0, "(II)I", "add", "CGLIB$add$0");
}
final int CGLIB$add$0(int var1, int var2) {
return super.add(var1, var2);
}
public final int add(int var1, int var2) {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
if (var10000 != null) {
Object var3 = var10000.intercept(this, CGLIB$add$0$Method, new Object[]{new Integer(var1), new Integer(var2)}, CGLIB$add$0$Proxy);
return var3 == null ? 0 : ((Number)var3).intValue();
} else {
return super.add(var1, var2);
}
}
final boolean CGLIB$equals$1(Object var1) {
return super.equals(var1);
}
public final boolean equals(Object var1) {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
if (var10000 != null) {
Object var2 = var10000.intercept(this, CGLIB$equals$1$Method, new Object[]{var1}, CGLIB$equals$1$Proxy);
return var2 == null ? false : (Boolean)var2;
} else {
return super.equals(var1);
}
}
final String CGLIB$toString$2() {
return super.toString();
}
public final String toString() {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
return var10000 != null ? (String)var10000.intercept(this, CGLIB$toString$2$Method, CGLIB$emptyArgs, CGLIB$toString$2$Proxy) : super.toString();
}
final int CGLIB$hashCode$3() {
return super.hashCode();
}
public final int hashCode() {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
if (var10000 != null) {
Object var1 = var10000.intercept(this, CGLIB$hashCode$3$Method, CGLIB$emptyArgs, CGLIB$hashCode$3$Proxy);
return var1 == null ? 0 : ((Number)var1).intValue();
} else {
return super.hashCode();
}
}
final Object CGLIB$clone$4() throws CloneNotSupportedException {
return super.clone();
}
protected final Object clone() throws CloneNotSupportedException {
MethodInterceptor var10000 = this.CGLIB$CALLBACK_0;
if (var10000 == null) {
CGLIB$BIND_CALLBACKS(this);
var10000 = this.CGLIB$CALLBACK_0;
}
return var10000 != null ? var10000.intercept(this, CGLIB$clone$4$Method, CGLIB$emptyArgs, CGLIB$clone$4$Proxy) : super.clone();
}
public static MethodProxy CGLIB$findMethodProxy(Signature var0) {
String var10000 = var0.toString();
switch(var10000.hashCode()) {
case -1287932281:
if (var10000.equals("add(II)I")) {
return CGLIB$add$0$Proxy;
}
break;
case -508378822:
if (var10000.equals("clone()Ljava/lang/Object;")) {
return CGLIB$clone$4$Proxy;
}
break;
case 1826985398:
if (var10000.equals("equals(Ljava/lang/Object;)Z")) {
return CGLIB$equals$1$Proxy;
}
break;
case 1913648695:
if (var10000.equals("toString()Ljava/lang/String;")) {
return CGLIB$toString$2$Proxy;
}
break;
case 1984935277:
if (var10000.equals("hashCode()I")) {
return CGLIB$hashCode$3$Proxy;
}
}
return null;
}
public Calculator$$EnhancerByCGLIB$$b514f2c0() {
CGLIB$BIND_CALLBACKS(this);
}
public static void CGLIB$SET_THREAD_CALLBACKS(Callback[] var0) {
CGLIB$THREAD_CALLBACKS.set(var0);
}
public static void CGLIB$SET_STATIC_CALLBACKS(Callback[] var0) {
CGLIB$STATIC_CALLBACKS = var0;
}
private static final void CGLIB$BIND_CALLBACKS(Object var0) {
Calculator$$EnhancerByCGLIB$$b514f2c0 var1 = (Calculator$$EnhancerByCGLIB$$b514f2c0)var0;
if (!var1.CGLIB$BOUND) {
var1.CGLIB$BOUND = true;
Object var10000 = CGLIB$THREAD_CALLBACKS.get();
if (var10000 == null) {
var10000 = CGLIB$STATIC_CALLBACKS;
if (var10000 == null) {
return;
}
}
var1.CGLIB$CALLBACK_0 = (MethodInterceptor)((Callback[])var10000)[0];
}
}
public Object newInstance(Callback[] var1) {
CGLIB$SET_THREAD_CALLBACKS(var1);
Calculator$$EnhancerByCGLIB$$b514f2c0 var10000 = new Calculator$$EnhancerByCGLIB$$b514f2c0();
CGLIB$SET_THREAD_CALLBACKS((Callback[])null);
return var10000;
}
public Object newInstance(Callback var1) {
CGLIB$SET_THREAD_CALLBACKS(new Callback[]{var1});
Calculator$$EnhancerByCGLIB$$b514f2c0 var10000 = new Calculator$$EnhancerByCGLIB$$b514f2c0();
CGLIB$SET_THREAD_CALLBACKS((Callback[])null);
return var10000;
}
public Object newInstance(Class[] var1, Object[] var2, Callback[] var3) {
CGLIB$SET_THREAD_CALLBACKS(var3);
Calculator$$EnhancerByCGLIB$$b514f2c0 var10000 = new Calculator$$EnhancerByCGLIB$$b514f2c0;
switch(var1.length) {
case 0:
var10000.<init>();
CGLIB$SET_THREAD_CALLBACKS((Callback[])null);
return var10000;
default:
throw new IllegalArgumentException("Constructor not found");
}
}
public Callback getCallback(int var1) {
CGLIB$BIND_CALLBACKS(this);
MethodInterceptor var10000;
switch(var1) {
case 0:
var10000 = this.CGLIB$CALLBACK_0;
break;
default:
var10000 = null;
}
return var10000;
}
public void setCallback(int var1, Callback var2) {
switch(var1) {
case 0:
this.CGLIB$CALLBACK_0 = (MethodInterceptor)var2;
default:
}
}
public Callback[] getCallbacks() {
CGLIB$BIND_CALLBACKS(this);
return new Callback[]{this.CGLIB$CALLBACK_0};
}
public void setCallbacks(Callback[] var1) {
this.CGLIB$CALLBACK_0 = (MethodInterceptor)var1[0];
}
static {
CGLIB$STATICHOOK1();
}}
```
被代理类的FastClass
```java // // Source code recreated from a .class file by IntelliJ IDEA // (powered by Fernflower decompiler) //
package cglib;
import java.lang.reflect.InvocationTargetException; import org.springframework.cglib.core.Signature; import org.springframework.cglib.reflect.FastClass;
public class Calculator$$FastClassByCGLIB$$660dfb8f extends FastClass { public Calculator$$FastClassByCGLIB$$660dfb8f(Class var1) { super(var1); }
public int getIndex(Signature var1) {
String var10000 = var1.toString();
switch(var10000.hashCode()) {
case -1287932281:
if (var10000.equals("add(II)I")) {
return 0;
}
break;
case 1826985398:
if (var10000.equals("equals(Ljava/lang/Object;)Z")) {
return 1;
}
break;
case 1913648695:
if (var10000.equals("toString()Ljava/lang/String;")) {
return 2;
}
break;
case 1984935277:
if (var10000.equals("hashCode()I")) {
return 3;
}
}
return -1;
}
public int getIndex(String var1, Class[] var2) {
switch(var1.hashCode()) {
case -1776922004:
if (var1.equals("toString")) {
switch(var2.length) {
case 0:
return 2;
}
}
break;
case -1295482945:
if (var1.equals("equals")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("java.lang.Object")) {
return 1;
}
}
}
break;
case 96417:
if (var1.equals("add")) {
switch(var2.length) {
case 2:
if (var2[0].getName().equals("int") && var2[1].getName().equals("int")) {
return 0;
}
}
}
break;
case 147696667:
if (var1.equals("hashCode")) {
switch(var2.length) {
case 0:
return 3;
}
}
}
return -1;
}
public int getIndex(Class[] var1) {
switch(var1.length) {
case 0:
return 0;
default:
return -1;
}
}
public Object invoke(int var1, Object var2, Object[] var3) throws InvocationTargetException {
Calculator var10000 = (Calculator)var2;
int var10001 = var1;
try {
switch(var10001) {
case 0:
return new Integer(var10000.add(((Number)var3[0]).intValue(), ((Number)var3[1]).intValue()));
case 1:
return new Boolean(var10000.equals(var3[0]));
case 2:
return var10000.toString();
case 3:
return new Integer(var10000.hashCode());
}
} catch (Throwable var4) {
throw new InvocationTargetException(var4);
}
throw new IllegalArgumentException("Cannot find matching method/constructor");
}
public Object newInstance(int var1, Object[] var2) throws InvocationTargetException {
Calculator var10000 = new Calculator;
Calculator var10001 = var10000;
int var10002 = var1;
try {
switch(var10002) {
case 0:
var10001.<init>();
return var10000;
}
} catch (Throwable var3) {
throw new InvocationTargetException(var3);
}
throw new IllegalArgumentException("Cannot find matching method/constructor");
}
public int getMaxIndex() {
return 3;
}}
```
代理类的FasClass
```java // // Source code recreated from a .class file by IntelliJ IDEA // (powered by Fernflower decompiler) //
package cglib;
import cglib.Calculator..EnhancerByCGLIB..b514f2c0; import java.lang.reflect.InvocationTargetException; import org.springframework.cglib.core.Signature; import org.springframework.cglib.proxy.Callback; import org.springframework.cglib.reflect.FastClass;
public class Calculator$$EnhancerByCGLIB$$b514f2c0$$FastClassByCGLIB$$ec726d06 extends FastClass { public Calculator$$EnhancerByCGLIB$$b514f2c0$$FastClassByCGLIB$$ec726d06(Class var1) { super(var1); }
public int getIndex(Signature var1) {
String var10000 = var1.toString();
switch(var10000.hashCode()) {
case -1882565338:
if (var10000.equals("CGLIB$equals$1(Ljava/lang/Object;)Z")) {
return 15;
}
break;
case -1870561232:
if (var10000.equals("CGLIB$findMethodProxy(Lorg/springframework/cglib/core/Signature;)Lorg/springframework/cglib/proxy/MethodProxy;")) {
return 12;
}
break;
case -1745842178:
if (var10000.equals("setCallbacks([Lorg/springframework/cglib/proxy/Callback;)V")) {
return 8;
}
break;
case -1641413109:
if (var10000.equals("newInstance([Lorg/springframework/cglib/proxy/Callback;)Ljava/lang/Object;")) {
return 5;
}
break;
case -1457535688:
if (var10000.equals("CGLIB$STATICHOOK1()V")) {
return 20;
}
break;
case -1411842725:
if (var10000.equals("CGLIB$hashCode$3()I")) {
return 19;
}
break;
case -1287932281:
if (var10000.equals("add(II)I")) {
return 0;
}
break;
case -1034266769:
if (var10000.equals("CGLIB$SET_STATIC_CALLBACKS([Lorg/springframework/cglib/proxy/Callback;)V")) {
return 14;
}
break;
case -1025895669:
if (var10000.equals("CGLIB$SET_THREAD_CALLBACKS([Lorg/springframework/cglib/proxy/Callback;)V")) {
return 13;
}
break;
case -988317324:
if (var10000.equals("newInstance([Ljava/lang/Class;[Ljava/lang/Object;[Lorg/springframework/cglib/proxy/Callback;)Ljava/lang/Object;")) {
return 6;
}
break;
case -984241474:
if (var10000.equals("CGLIB$add$0(II)I")) {
return 18;
}
break;
case -508378822:
if (var10000.equals("clone()Ljava/lang/Object;")) {
return 4;
}
break;
case 610042816:
if (var10000.equals("newInstance(Lorg/springframework/cglib/proxy/Callback;)Ljava/lang/Object;")) {
return 7;
}
break;
case 1132856532:
if (var10000.equals("getCallbacks()[Lorg/springframework/cglib/proxy/Callback;")) {
return 11;
}
break;
case 1246779367:
if (var10000.equals("setCallback(ILorg/springframework/cglib/proxy/Callback;)V")) {
return 9;
}
break;
case 1306468936:
if (var10000.equals("CGLIB$toString$2()Ljava/lang/String;")) {
return 17;
}
break;
case 1364367423:
if (var10000.equals("getCallback(I)Lorg/springframework/cglib/proxy/Callback;")) {
return 10;
}
break;
case 1800494055:
if (var10000.equals("CGLIB$clone$4()Ljava/lang/Object;")) {
return 16;
}
break;
case 1826985398:
if (var10000.equals("equals(Ljava/lang/Object;)Z")) {
return 1;
}
break;
case 1913648695:
if (var10000.equals("toString()Ljava/lang/String;")) {
return 2;
}
break;
case 1984935277:
if (var10000.equals("hashCode()I")) {
return 3;
}
}
return -1;
}
public int getIndex(String var1, Class[] var2) {
switch(var1.hashCode()) {
case -1776922004:
if (var1.equals("toString")) {
switch(var2.length) {
case 0:
return 2;
}
}
break;
case -1295482945:
if (var1.equals("equals")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("java.lang.Object")) {
return 1;
}
}
}
break;
case -1053468136:
if (var1.equals("getCallbacks")) {
switch(var2.length) {
case 0:
return 11;
}
}
break;
case -124978609:
if (var1.equals("CGLIB$equals$1")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("java.lang.Object")) {
return 15;
}
}
}
break;
case -60403779:
if (var1.equals("CGLIB$SET_STATIC_CALLBACKS")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("[Lorg.springframework.cglib.proxy.Callback;")) {
return 14;
}
}
}
break;
case -29025555:
if (var1.equals("CGLIB$hashCode$3")) {
switch(var2.length) {
case 0:
return 19;
}
}
break;
case 96417:
if (var1.equals("add")) {
switch(var2.length) {
case 2:
if (var2[0].getName().equals("int") && var2[1].getName().equals("int")) {
return 0;
}
}
}
break;
case 85179481:
if (var1.equals("CGLIB$SET_THREAD_CALLBACKS")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("[Lorg.springframework.cglib.proxy.Callback;")) {
return 13;
}
}
}
break;
case 94756189:
if (var1.equals("clone")) {
switch(var2.length) {
case 0:
return 4;
}
}
break;
case 147696667:
if (var1.equals("hashCode")) {
switch(var2.length) {
case 0:
return 3;
}
}
break;
case 161998109:
if (var1.equals("CGLIB$STATICHOOK1")) {
switch(var2.length) {
case 0:
return 20;
}
}
break;
case 495524492:
if (var1.equals("setCallbacks")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("[Lorg.springframework.cglib.proxy.Callback;")) {
return 8;
}
}
}
break;
case 1108311562:
if (var1.equals("CGLIB$add$0")) {
switch(var2.length) {
case 2:
if (var2[0].getName().equals("int") && var2[1].getName().equals("int")) {
return 18;
}
}
}
break;
case 1154623345:
if (var1.equals("CGLIB$findMethodProxy")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("org.springframework.cglib.core.Signature")) {
return 12;
}
}
}
break;
case 1543336189:
if (var1.equals("CGLIB$toString$2")) {
switch(var2.length) {
case 0:
return 17;
}
}
break;
case 1811874389:
if (var1.equals("newInstance")) {
switch(var2.length) {
case 1:
String var10001 = var2[0].getName();
switch(var10001.hashCode()) {
case -1997738671:
if (var10001.equals("[Lorg.springframework.cglib.proxy.Callback;")) {
return 5;
}
break;
case 1364160985:
if (var10001.equals("org.springframework.cglib.proxy.Callback")) {
return 7;
}
}
case 2:
default:
break;
case 3:
if (var2[0].getName().equals("[Ljava.lang.Class;") && var2[1].getName().equals("[Ljava.lang.Object;") && var2[2].getName().equals("[Lorg.springframework.cglib.proxy.Callback;")) {
return 6;
}
}
}
break;
case 1817099975:
if (var1.equals("setCallback")) {
switch(var2.length) {
case 2:
if (var2[0].getName().equals("int") && var2[1].getName().equals("org.springframework.cglib.proxy.Callback")) {
return 9;
}
}
}
break;
case 1905679803:
if (var1.equals("getCallback")) {
switch(var2.length) {
case 1:
if (var2[0].getName().equals("int")) {
return 10;
}
}
}
break;
case 1951977610:
if (var1.equals("CGLIB$clone$4")) {
switch(var2.length) {
case 0:
return 16;
}
}
}
return -1;
}
public int getIndex(Class[] var1) {
switch(var1.length) {
case 0:
return 0;
default:
return -1;
}
}
public Object invoke(int var1, Object var2, Object[] var3) throws InvocationTargetException {
b514f2c0 var10000 = (b514f2c0)var2;
int var10001 = var1;
try {
switch(var10001) {
case 0:
return new Integer(var10000.add(((Number)var3[0]).intValue(), ((Number)var3[1]).intValue()));
case 1:
return new Boolean(var10000.equals(var3[0]));
case 2:
return var10000.toString();
case 3:
return new Integer(var10000.hashCode());
case 4:
return var10000.clone();
case 5:
return var10000.newInstance((Callback[])var3[0]);
case 6:
return var10000.newInstance((Class[])var3[0], (Object[])var3[1], (Callback[])var3[2]);
case 7:
return var10000.newInstance((Callback)var3[0]);
case 8:
var10000.setCallbacks((Callback[])var3[0]);
return null;
case 9:
var10000.setCallback(((Number)var3[0]).intValue(), (Callback)var3[1]);
return null;
case 10:
return var10000.getCallback(((Number)var3[0]).intValue());
case 11:
return var10000.getCallbacks();
case 12:
return b514f2c0.CGLIB$findMethodProxy((Signature)var3[0]);
case 13:
b514f2c0.CGLIB$SET_THREAD_CALLBACKS((Callback[])var3[0]);
return null;
case 14:
b514f2c0.CGLIB$SET_STATIC_CALLBACKS((Callback[])var3[0]);
return null;
case 15:
return new Boolean(var10000.CGLIB$equals$1(var3[0]));
case 16:
return var10000.CGLIB$clone$4();
case 17:
return var10000.CGLIB$toString$2();
case 18:
return new Integer(var10000.CGLIB$add$0(((Number)var3[0]).intValue(), ((Number)var3[1]).intValue()));
case 19:
return new Integer(var10000.CGLIB$hashCode$3());
case 20:
b514f2c0.CGLIB$STATICHOOK1();
return null;
}
} catch (Throwable var4) {
throw new InvocationTargetException(var4);
}
throw new IllegalArgumentException("Cannot find matching method/constructor");
}
public Object newInstance(int var1, Object[] var2) throws InvocationTargetException {
b514f2c0 var10000 = new b514f2c0;
b514f2c0 var10001 = var10000;
int var10002 = var1;
try {
switch(var10002) {
case 0:
var10001.<init>();
return var10000;
}
} catch (Throwable var3) {
throw new InvocationTargetException(var3);
}
throw new IllegalArgumentException("Cannot find matching method/constructor");
}
public int getMaxIndex() {
return 20;
}}
```
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