小编Ram*_*ddi的帖子

我需要从Gmail检索未读邮件.我正在使用Java Mail API.默认情况下,此API会检索从最旧到最新的邮件.但我需要先检索最近的邮件.可能吗？提前致谢.

与任何编程语言一样,编写Mule流程时要遵循的标准命名约定是什么？我发现在Mule in Action book中遵循了驼峰式约定.Mule命名约定的标准格式是什么.

可以建议标准选项吗？

我有下面的 Json

{
    "user": {
        "name": "Ram",
        "age": 27
    }
}

我想将其反序列化为该类的实例

public class User {
    private String name;
    private int age;

    // getters & setters
}

为此，我使用了@JsonRootName类名和类似下面的内容

@Configuration
public class JacksonConfig {

    @Bean
    public Jackson2ObjectMapperBuilder jacksonBuilder() {
        Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
        builder.featuresToEnable(DeserializationFeature.UNWRAP_ROOT_VALUE);
        return builder;
    }
}

但它并没有按预期工作。如果我发送如下所示的内容，它就会起作用。

{
 "name": "Ram",
 "age": 27
}

但我想用根名称反序列化 json。有人可以建议一下吗？

我想用 Spring Boot 的方式来做到这一点。

有没有办法使用杰克逊库将给定的Json数组拆分为单独的Json元素？比方说,我有这个Json数组:

[
    {
        "key1":"value11", 
        "key2":"value12"
    },
    {
        "key1":"value21", 
        "key2":"value22"
    }
]

拆分后,我想要一个单独的元素列表,如:

{
        "key1":"value11", 
        "key2":"value12"
}

和

{
        "key1":"value21", 
        "key2":"value22"
}

我已经为通过APIKit路由器生成的流创建了Munit测试用例.但是在运行测试套件时,我遇到了以下异常:

Exception in thread "main" java.lang.RuntimeException: org.mule.api.lifecycle.LifecycleException: null
    at org.mule.munit.runner.mule.MunitSuiteRunner.<init>(MunitSuiteRunner.java:48)
    at org.mule.munit.runner.remote.MunitRemoteRunner.run(MunitRemoteRunner.java:40)
    at org.mule.munit.runner.remote.MunitRemoteRunner.main(MunitRemoteRunner.java:143)
Caused by: org.mule.api.lifecycle.LifecycleException: null
    at org.mule.lifecycle.AbstractLifecycleManager.invokePhase(AbstractLifecycleManager.java:153)
    at org.mule.construct.FlowConstructLifecycleManager.fireStartPhase(FlowConstructLifecycleManager.java:92)
    at org.mule.construct.AbstractFlowConstruct.start(AbstractFlowConstruct.java:136)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.mule.lifecycle.phases.DefaultLifecyclePhase.applyLifecycle(DefaultLifecyclePhase.java:237)
    at org.mule.lifecycle.RegistryLifecycleManager$RegistryLifecycleCallback.onTransition(RegistryLifecycleManager.java:273)
    at org.mule.lifecycle.RegistryLifecycleManager.invokePhase(RegistryLifecycleManager.java:152)
    at org.mule.lifecycle.RegistryLifecycleManager.fireLifecycle(RegistryLifecycleManager.java:123)
    at org.mule.registry.AbstractRegistryBroker.fireLifecycle(AbstractRegistryBroker.java:76)
    at org.mule.registry.MuleRegistryHelper.fireLifecycle(MuleRegistryHelper.java:136)
    at org.mule.lifecycle.MuleContextLifecycleManager$MuleContextLifecycleCallback.onTransition(MuleContextLifecycleManager.java:91)
    at org.mule.lifecycle.MuleContextLifecycleManager$MuleContextLifecycleCallback.onTransition(MuleContextLifecycleManager.java:87)
    at org.mule.lifecycle.MuleContextLifecycleManager.invokePhase(MuleContextLifecycleManager.java:69)
    at org.mule.lifecycle.MuleContextLifecycleManager.fireLifecycle(MuleContextLifecycleManager.java:61)
    at org.mule.DefaultMuleContext.start(DefaultMuleContext.java:278)
    at org.mule.munit.runner.MuleContextManager.startMule(MuleContextManager.java:68)
    at org.mule.munit.runner.MuleContextManager.startMule(MuleContextManager.java:63)
    at org.mule.munit.runner.mule.MunitSuiteRunner.<init>(MunitSuiteRunner.java:40)

任何人都可以解决这个问题吗？提前致谢.