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切面代理工具中的cglib支持多参数构造生成

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Looly
2023-05-25 00:16:08 +08:00
parent 99c5e13930
commit 2e88e74cae
4 changed files with 174 additions and 6 deletions
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42
hutool-aop/src/main/java/cn/hutool/aop/proxy/CglibProxyFactory.java
View File

@@ -2,8 +2,12 @@ package cn.hutool.aop.proxy;
import cn.hutool.aop.aspects.Aspect;
import cn.hutool.aop.interceptor.CglibInterceptor;
import cn.hutool.core.util.ClassUtil;
import cn.hutool.core.util.ReflectUtil;
import net.sf.cglib.proxy.Enhancer;
import java.lang.reflect.Constructor;
/**
* 基于Cglib的切面代理工厂
*
@@ -14,12 +18,46 @@ public class CglibProxyFactory extends ProxyFactory{
private static final long serialVersionUID = 1L;
@Override
@SuppressWarnings("unchecked")
public <T> T proxy(T target, Aspect aspect) {
final Class<?> targetClass = target.getClass();
final Enhancer enhancer = new Enhancer();
enhancer.setSuperclass(target.getClass());
enhancer.setCallback(new CglibInterceptor(target, aspect));
return (T) enhancer.create();
return create(enhancer, targetClass);
}
/**
* 创建代理对象<br>
* https://gitee.com/dromara/hutool/issues/I74EX7<br>
* 某些对象存在非空参数构造，则需遍历查找需要的构造完成代理对象构建。
*
* @param <T> 代理对象类型
* @param enhancer {@link org.springframework.cglib.proxy.Enhancer}
* @param targetClass 目标类型
* @return 代理对象
*/
@SuppressWarnings("unchecked")
private static <T> T create(final Enhancer enhancer, final Class<?> targetClass) {
final Constructor<?>[] constructors = ReflectUtil.getConstructors(targetClass);
Class<?>[] parameterTypes;
Object[] values;
IllegalArgumentException finalException = null;
for (final Constructor<?> constructor : constructors) {
parameterTypes = constructor.getParameterTypes();
values = ClassUtil.getDefaultValues(parameterTypes);
try {
return (T) enhancer.create(parameterTypes, values);
} catch (final IllegalArgumentException e) {
//ignore
finalException = e;
}
}
if (null != finalException) {
throw finalException;
}
throw new IllegalArgumentException("No constructor provided");
}
}

44
hutool-aop/src/main/java/cn/hutool/aop/proxy/SpringCglibProxyFactory.java
View File

@@ -2,8 +2,12 @@ package cn.hutool.aop.proxy;
import cn.hutool.aop.aspects.Aspect;
import cn.hutool.aop.interceptor.SpringCglibInterceptor;
import cn.hutool.core.util.ClassUtil;
import cn.hutool.core.util.ReflectUtil;
import org.springframework.cglib.proxy.Enhancer;
import java.lang.reflect.Constructor;
/**
* 基于Spring-cglib的切面代理工厂
*
@@ -14,12 +18,46 @@ public class SpringCglibProxyFactory extends ProxyFactory{
private static final long serialVersionUID = 1L;
@Override
@SuppressWarnings("unchecked")
public <T> T proxy(T target, Aspect aspect) {
final Class<?> targetClass = target.getClass();
final Enhancer enhancer = new Enhancer();
enhancer.setSuperclass(target.getClass());
enhancer.setSuperclass(targetClass);
enhancer.setCallback(new SpringCglibInterceptor(target, aspect));
return (T) enhancer.create();
return create(enhancer, targetClass);
}
/**
* 创建代理对象<br>
* https://gitee.com/dromara/hutool/issues/I74EX7<br>
* 某些对象存在非空参数构造，则需遍历查找需要的构造完成代理对象构建。
*
* @param <T> 代理对象类型
* @param enhancer {@link Enhancer}
* @param targetClass 目标类型
* @return 代理对象
*/
@SuppressWarnings("unchecked")
private static <T> T create(final Enhancer enhancer, final Class<?> targetClass) {
final Constructor<?>[] constructors = ReflectUtil.getConstructors(targetClass);
Class<?>[] parameterTypes;
Object[] values;
IllegalArgumentException finalException = null;
for (final Constructor<?> constructor : constructors) {
parameterTypes = constructor.getParameterTypes();
values = ClassUtil.getDefaultValues(parameterTypes);
try {
return (T) enhancer.create(parameterTypes, values);
} catch (final IllegalArgumentException e) {
//ignore
finalException = e;
}
}
if (null != finalException) {
throw finalException;
}
throw new IllegalArgumentException("No constructor provided");
}
}