小编Wol*_*and的帖子

所以,我处于尴尬的境地 - 我想用Visual Studio创建Windows Form App,但我找不到任何创建Visual C++ Windows Form模板的地方.我甚至尝试重新安装Visual C++,添加其他库并在线搜索答案 - 没有结果.

我当然可以在C#中创建新的Winforms:

但不是在C++中:

此外,还检查了Visual Studio Update中的所有可能模块:

我甚至尝试从在线列表中添加模板:

接下来我该怎么办？我使用Visual Studio 2017社区版.

我想基于事件通用类型构建事件处理。

活动类别：

public class PushNotificationStoreEvent<T extends Push> extends ApplicationEvent {
    private static final long serialVersionUID = -3791059956099310853L;

    public T push;

    public PushNotificationStoreEvent(Object source, T push) {
        super(source);
        this.push = push;
    }
}

这Push是类的标记接口：PushNotificationNew和PushNotificationFail。

听众：

@Async
@EventListener
public void storeNewPush(PushNotificationStoreEvent<PushNotificationNew> event) {
    pushNewRepoService.save(event.push);
}
@Async
@EventListener
public void storeFailPush(PushNotificationStoreEvent<PushNotificationFail> event) {
    pushFailRepoService.save(event.push);
}

PushNotificationStoreEvent<PushNotificationNew>问题：听众之间和听众之间没有区别PushNotificationStoreEvent<PushNotificationFail> 。

这意味着所有事件PushNotificationStoreEvent都由所有侦听器处理。

我可以通过为每个案例创建单独的事件类或使用一个监听器并选择正确的操作来解决这个instanceof问题event.push。也许您知道更好的解决方案？

我为编写了测试FilterDataController。但是在执行测试期间出现以下错误。当我手动发送GET请求时，我会收到正确的JSON。

org.springframework.web.client.HttpClientErrorException: 400 null

    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91)
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:667)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:620)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:580)
    at org.springframework.web.client.RestTemplate.getForEntity(RestTemplate.java:312)
    at com.company.integration.tests.rest.StatisticEndpointTest.checkFilterDataControllerInvalidBodyResponse(StatisticEndpointTest.java:284)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    at org.junit.runners.Suite.runChild(Suite.java:128)
    at org.junit.runners.Suite.runChild(Suite.java:27)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at …