/// <summary>
/// 每个被拦截的方法中执行
/// </summary>
/// <param name="context"></param>
/// <param name="next"></param>
/// <returns></returns>
public override async Task Invoke(AspectContext context, AspectDelegate next)
{
try
{
Console.WriteLine("AddAsync方法开始前");
await next(context); // 执行被拦截的方法
}
catch (Exception)
{
Console.WriteLine("AddAsync方法出错");
//重复调用示例
ProxyGeneratorBuilder proxyGeneratorBuilder = new ProxyGeneratorBuilder();
using (IProxyGenerator proxyGenerator = proxyGeneratorBuilder.Build())
{
var baseClass = context.Proxy;
foreach (var item in baseClass.GetType().GetMethods())
{
if (item.Name.ToString() == _mess)
{
MethodInfo methodinfo = baseClass.GetType().GetMethod(_mess);
methodinfo.Invoke(baseClass, null);
}
}
}
throw;
}
finally
{
Console.WriteLine("AddAsync方法结束");
}
}
public DynamicProxyTestBase()
{
var builder = new ProxyGeneratorBuilder();
builder.Configure(Configure);
ProxyGenerator = builder.Build();
}
/// <summary>
/// Creates the rpc proxy.
/// </summary>
/// <param name="args">The args.</param>
/// <returns>A T.</returns>
public T CreateRpcProxy <T>(params object[] args) where T : class
{
var builder = new ProxyGeneratorBuilder();
builder.Configure(t => t.Interceptors.AddTyped <InnerAssemblyInterceptor>(new object[] { targetObj }));
var proxyCreate = builder.Build();
return(proxyCreate.CreateClassProxy <T>(args));
}
/// <summary>
/// Creates the rpc proxy.
/// </summary>
/// <param name="args">The args.</param>
/// <returns>A T.</returns>
public T CreateRpcProxy <T>(params object[] args) where T : class
{
//创建代理类
var builder = new ProxyGeneratorBuilder();
builder.Configure(t => t.Interceptors.AddTyped <PollyInterceptor>(new object[] { option }));
var type = typeof(T);
var proxyCreate = builder.Build();
return(proxyCreate.CreateClassProxy <T>(args));
}
public async Task <IEnumerable <string> > Get()
{
ProxyGeneratorBuilder proxyGeneratorBuilder = new ProxyGeneratorBuilder();
using (IProxyGenerator proxyGenerator = proxyGeneratorBuilder.Build())
{
Person p = proxyGenerator.CreateClassProxy <Person>();
Console.WriteLine(await p.HelloAsync("yzk"));
//Console.WriteLine(p.Add(1, 2));
}
return(new string[] { "value1", "value2" });
}
private static void Main(string[] args)
{
ProxyGeneratorBuilder proxyGeneratorBuilder = new ProxyGeneratorBuilder();
using (IProxyGenerator proxyGenerator = proxyGeneratorBuilder.Build())
{
Person p = proxyGenerator.CreateClassProxy <Person>();
//注入
p.Say("rupeng.com");
Console.WriteLine(p.GetType());
Console.WriteLine(p.GetType().BaseType);
}
Console.ReadKey();
}
/// <summary>
/// 使用WebApi动态代理客户端
/// </summary>
/// <param name="service"></param>
/// <param name="optionAction"></param>
public static IServiceCollection AddWebApiProxy(this IServiceCollection service, Action <WebApiProxyOptions> optionAction)
{
AppDomain.CurrentDomain.UpdateExcutingAssemblies();
var option = new WebApiProxyOptions();
optionAction(option);
var proxyService = new List <Type>();
var proxyGeneratorBuilder = new ProxyGeneratorBuilder();
foreach (var o in option.WebApiProxies)
{
var types = o.GetType().Assembly.GetTypes().Where(x =>
x.IsInterface && x.GetMethods().SelectMany(m => m.GetCustomAttributes(typeof(ApiActionAttribute), true)).Any());
proxyGeneratorBuilder.Configure(config =>
{
config.Interceptors.AddTyped(typeof(HttpApiClient), new object[] { o.BaseUrl ?? option.ProxyHost });
});
proxyService.AddRange(types);
}
foreach (var type in option.RegisteredServices)
{
if (type.Value.IsInterface && type.Value.GetMethods()
.SelectMany(m => m.GetCustomAttributes(typeof(ApiActionAttribute), true)).Any())
{
proxyGeneratorBuilder.Configure(config =>
{
config.Interceptors.AddTyped(typeof(HttpApiClient), new object[] { type.Key ?? option.ProxyHost });
});
proxyService.Add(type.Value);
}
}
var proxyGenerator = proxyGeneratorBuilder.Build();
foreach (var type in proxyService)
{
var proxy = proxyGenerator.CreateInterfaceProxy(type);
service.AddSingleton(type, x => proxy);
}
return(service);
}
static void Main(string[] args)
{
Console.WriteLine("开始程序");
//User user = new User();
//user.AddAsync();
ProxyGeneratorBuilder proxyGeneratorBuilder = new ProxyGeneratorBuilder();
using (IProxyGenerator proxyGenerator = proxyGeneratorBuilder.Build())
{
User p = proxyGenerator.CreateClassProxy <User>();
p.AddAsync();
//p.Error1();
}
Console.ReadLine();
}
static void Main(string[] args)
{
//为了使用熔断降级 ，代码不至于与业务代码在一起 ，使用aop
//国产Aop Install-Package AspectCore.Core -Version 0.5.0
//版本更新比较快，注意使用
//使用Aop封装降级 见项目 MyHystrix
//方法调用
ProxyGeneratorBuilder proxyGeneratorBuilder = new ProxyGeneratorBuilder();
using (IProxyGenerator proxyGenerator = proxyGeneratorBuilder.Build())
{
Person p = proxyGenerator.CreateClassProxy <Person>();
p.Say("大海");
}
Console.ReadKey();
}
